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PARTS CATALOG PC-203-I
TEXTRON LYCOMING O-320 A and E Series
LOW COMPRESSION
Wide Cylinder Flange Model
AIRCRAFT ENGINES
July 1984
Reciprocating Engine Division/ Subsidiary of Textron Inc.
652 Oliver Street WIlliamsport, PA 17701 U.S.A
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
INTRODUCTION
This illustrated parts catalog contains a complete parts listing for the Textron Lycoming 0-320 A and E serieslow compression wide cylinder flange model aircraft engines.
Major assembly and sub-assembly parts of the engines are listed in the Group Assembly sections in the generalsequence of engine build up.
A Service Kits section and Oversize and Undersize Parts List are included to aid in ordering parts as necessaryduring overhaul.
The Numerical Index is provided for convenience in finding parts when only the part number is known.
Parts coverage of Vendor Accessories used on Textron Lycoming engines may be found in the appropriateVendor's Parts Catalog. A list of these publications appear in the latest edition of Service Letter No. L114.
NOTE
The illustrations, pictures and drawings shown in this publication are typical of the subject matter they portray.
This catalog, when used in conjunction with the appropriate overhaul manual, shall be used for partsidentification only. Under no circumstances shall this catalog used as an assembly or installation document.
Any reference in this document to a suppliers/parts manufacturers' product , by name, trademark, part number orother description is solely for the purposes of identification and does not indicate or infer that Textron Lycoming acceptsresponsibility for quality control and/or airworthiness of parts which do not pass through the Textron Lycoming qualitycontrol system.
SERVICE BULLETINS, INSTRUCTIONS AND LETTERS
Although the information contained in this parts catalog is up-to-date at time of publication, users are urged tokeep abreast of later information through all Textron Lycoming distributors or from the factory by subscription. Consultthe latest edition of Service Letter No. L114 for subscription information.
HOW TO ORDER PARTS
In ordering parts for your engine, observe the following instructions which will expedite shipment of correctparts required without delay.
a. Always specify the model and serial number of your engine.b. Always specify Part Number, Nomenclature and quantity required.
i
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
TABLE OF CONTENTS
PAGESECTION
Introduction.............. ................... .......... i
Table of C ontents ...... .......... . . ............. . ........................ ii
Oversize and Undersize Parts . ............. ...................................................
1. CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUP
Crankcase Assembly ......... ..... ................................... 1-1
Oil Level Gage Assemblies ......... .... ............................ 1-3
Crankcase Related Parts ................ ........... .... .. 1-5
Crankshaft and Related Parts .......... .... ......... ..... ......... 1-7
Camshaft and Related Parts ....................... 1-9
Propeller Governor Drive Assembly ............................... 1-11
Crankshaft Idler Gears ......... ... .. ...... ............................................1-13
Crankcase Attaching Parts . ............ ................................... ..........1-15
2. ACCESSORY HOUSING AND RELATED PARTS
Accessory Housing Assembly ...... . ........... ................................ ........ 2-1
Oil Pump Assy. and Accessory Housing Attaching Parts ............. .. 2-3
Propeller Governor Oil Line ........... ......... ... ...................................... 2-5
Propeller Governor Drives and Covers ....... ..... .. ..... .... ... ...... 2-7
Fuel Pump Assembly and Attaching Parts ................... .............................. 2-9
Vacuum Pump Drive and Dual Drive Assemblies 2-11
Accessory Drive Covers ............. .. .. .................... 2-13
Oil Filter Assembly and Oil Cooler Bypass Valve ..... ......... ............ 2-14
3. CYLINDER, PISTON AND VALVE TRAINConnecting Rods, Pistons and Ring Assemblies .......................Cylinder Assembly .... ................. ....... ...............Valve Assembly ......................Cylinder Related Parts ...............................Cylinder Head Drain Tubes and Intercylinder Cooling Baffles ..........
. . . . . . . . . . .. . . . . . . . . . . .
.......... 3-1.......... 3-3
.......... 3-5......... 3-7
.......... 3-9
4. IGNITION SYSTEMMagnetos and Magneto Drives ..........................Ignition Harness and Lead Assembly ...................
...... 4-1.......... 4-3
5. ELECTRICAL COMPONENTSAlternator Assembly .... .......... .................Generator Mounting and Attaching Parts ............Alternator Mounting and Attaching Parts ...............Starter Motor and Attaching Parts .....................
.. .. . . . . . . . . . . .
.. . . . . . . . . . . . . .
........... 5-1. 5-2.5-4
....... 5-6
6. OIL SUMP AND INDUCTION SYSTEMOil Sump Assembly and Oil Suction Screen .................. ... ...... .................... 6-1
Intake Pipe Assembly ........................................... ....................... 6-3
Carburetor Assembly . ................................... .................... 6-5
Priming System .............. ........ ..................... . .............. 6-7
7. SERVICE KIT SECTION ........... ........... ........................................... 7-1
8. NUMERICAL INDEX . ..................... ............................ 8-1
ii
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
Oversize and Undersize Parts Listing
PART NO.
60028
66145
66610
66796
69373
69796
72057
72058
72063S
72064S
72065S
72066S
72067S
73857
74230
74241
74989
LW-10647
LW-13792
LW-13884
LW-16047
LW-16711
STD-1065
DESCRIPTION
P02 P05
.002 .005
GUIDE
DOWEL
BUSHING
INSERT
BEARING
DOWEL
SEAT
SEAT
BUSHING
BUSHING
BUSHING
BUSHING
BUSHING
RING
GUIDE
RING
RING
DOWEL
SEAL
BEARING
BEARING
BEARING
DOWEL
P05 P10
005 .010
X X
X
X X
X
OVERSIZE
P15
.015
P20
.020
X
X
P30
.030
X
UNDERSIZE
P50 M03 M06 M10
.050 .003 .006 .010
X X X
X
X
X
X X
X X
X X
X X
X X
X
X X
X
X
X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SEE LATEST
SEE LATEST
X X
EDITION OF
EDITION OF
I X I
X
X
SERVICE INSTRUCTION NO
SERVICE INSTRUCTION NO.
X
X X X
1377 FOR APPLICATION
1377 FOR APPLICATION
Studs available in P03. P07. P12
NOTE
When ordering oversize and undersize parts, be sure to specify the required oversize and undersize dimension along with theproper part number. For example, to order bearing LW-13884 in .003 undersize, order part number LW-13884-M3. Oversizecode letter is "P" while undersize code letter is "M". These letters are then followed by the number designating the size inthousandths of an inch.
iii
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKCASE ASSEMBLY
FIG.REF.
1PART
NUMBER DESCRIPTION
0QUANTITY PER ASSEMBLY
A AA AA E E E E E E E E E E EL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H D H
1 LW-18369*LW-18372**LW-18379**LW-13813*LW-13817*
2 751543 50-154 38-135 38D-176 LW-137937 31C-128 31C-139 38-22
10 STD-55711 STD-51412 7215813 6979614 LW-1064715 110216 STD-162317 6500718 STD-133919 110220 31C-14·
CRANKCASE ASSEMBLYCRANKCASE ASSEMBLYCRANKCASE ASSEMBLYCRANKCASE ASSEMBLYCRANKCASE ASSEMBLY
STUD, 1/2-13 x 10-1/32 longSTUD, 1/2-20 x 1-7/8 longSTUD, 3/8-16 x 1-5/8 longSTUD, 3/8-16 x 2-1/8 long, drilledSTUD, 5/16-18 x 15/16 longSTUD, 5/16-18 x 1-1/2 longSTUD, 5/16-18 x 1-5/8 longSTUD, 3/8-16 x 2-3/4 longDOWEL, 1/2 dia. x 19/32 longDOWEL, 5/16 dia. x 1/2 longBUSHING, Governor drive idler shaftDOWEL, Crankshaft bearingDOWEL, Crankshaft bearingPLUG, 1/8-27 NPT, AllenINSERT, 1/4-20 x 3/8 longRETAINER, Shroud tube sealPLUG, 1/16-27 NPT, Allen
PLUG, 1/8-27 NPT, AllenSTUD, 5/16-18 x 1-3/4 long
11
1 1 11 111
1 1 1 1 111
128
161121
1 122
22822124
222124
2
55555455554555528
11
4 4
* Straight conical mounting provision.** No. 1 dynafocal mounting provision.* Governor drive at front of crankcase and dynafocal mounts.· Used for installation of "AN" Governor.
1-1
15
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
Figure 1. CRANKCASE ASSEMBLY
1-2
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPOIL LEVEL GAGE ASSEMBLIES
FIG.REF. PART
2 NUMBER
1 757357576775736LW-15970
2 786263 757674 757615 722206 LW-127897 757678 775279 7222010 7205911 74068*
74065*72312*
12 LW-14759LW-14780LW-14758LW-14757LW-14768LW-14735LW-14793
DESCRIPTION
TUBE, Oil level gage, shortTUBE, Oil level gage, intermediateTUBE, Oil level gage, longTUBE, Oil level gage, shortTUBE ASSY., Oil level gage, 15-1/8 long
TUBE, Oil level gageEXTENSION, Oil filterGASKET, Oil level gage
TUBE ASSY., Oil level gage, 12-13/16 longTUBE, Oil level gageEXTENSION, Oil filterGASKET, Oil level gage
GASKET, Oil level gageRING, Oil level gage, sealRING, Oil level gage, sealRING, Oil seal, 1.00 I.D. x 1/8 sectionGAGE ASSY., Oil levelGAGE ASSY., Oil levelGAGE ASSY., Oil levelGAGE ASSY., Oil levelGAGE ASSY., Oil levelGAGE ASSY., Oil levelGAGE ASSY., Oil level
OUANTITY PER ASSEMBLY
A AAAAEEEEEEEEEEEL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L BC D BAF A B C D F G H D H
111 1 1 11 1 1 111 111111111 111 1
1 11 11 11 1
1 11 11 11 1
11 1 1 11 1 1
1111111
1 1 1 11
1 11 1 1 11 1 11 1
1 1 11 1
1 1 1 1 1 1 1 111 1
1 1
1 11 1
* Used with LW-14759, LW-14758, LW-14757 & LW-14793 gage assemblies.** Used with LW-14780 & LW-14768 gage assemblies.* Used with LW-14735 gage assembly.
1-3
11
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
1
2
.9
1,3,7
Figure 2. OIL LEVEL GAGE ASSEMBLIES
1-4
1 Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKCASE RELATED PARTS
FIG.REF. PART
3 NUMBER
1 1028-B2 610843 STD-425*4 STD-10455 765296 778087 LW-16047*
LW-16711**8 LW-138849 LW-13792
10 7207511 7209112 72877
DESCRIPTION
BALL, 11/16 diameterSPRING, Oil pressure relief valveWASHER, No. 10 plain (Max. 9)GASKET, 1-1/4 I.D. x 1-1/2 0.D. x 3/32 annularPLUG, Oil relief valveVALVE ASSY., Oil pressure relief, adjustableBEARING, CrankshaftBEARING, CrankshaftBEARING, Crankshaft, frontSEAL, Oil, crankshaftSEAL, Oil, 3/32 sect. 15/32 I.D.RING, Oil seal, 23/64 I.D. x 7/64 dia.BODY, Hydraulic tappet
0N QUANTITY PER ASSEMBLY
A A A A A E E E E E E E E E E EL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L BC D B A F A B C D F G H D H11
AR11
14 4 4444844 422 2 2 2 2
44 44 4 8 8 8 8 822 2
1228
* Used as an alternate to LW-11020 and LW-11021 crankshaft bearings.** Thin wall, high crush.* Used only with item no. 5 plug.
1-5
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
7- -1
-2
-3
5
6
Figure 3. CRANKCASE RELATED PARTS
1-6
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKSHAFT AND RELATED PARTS
FIG.REF. PART4 NUMBER
1 LW-17060LW-17066LW-17061LW-17063LW-17064LW-17067LW-12446
2 STD-12113 STD-10654 720635 720646 720657 720668 720679 61510
10 68867
74414
76628
76899
76944
11 6088272566
12 6115513 LW-1863914 STD-2213
DESCRIPTION
CRANKSHAFT AND PLUG ASSEMBLYCRANKSHAFT AND PLUG ASSEMBLYCRANKSHAFT AND PLUG ASSEMBLYCRANKSHAFT AND PLUG ASSEMBLYCRANKSHAFT AND PLUG ASSEMBLYCRANKSHAFT AND PLUG ASSEMBLYCRANKSHAFT ASSEMBLY
PLUG, 2.00 dia. expansionDOWEL, Stepped 5/16 - 1/4 dia. x 9/16 longBUSHING, Propeller flangeBUSHING, Propeller flange, shortBUSHING, Propeller flangeBUSHING, Propeller flangeBUSHING, Propeller flangePLUG, 1-3/4 O.D.
SUPPORT ASSY., Starter ring gear 10/12 pitch, 1.91:1drive
SUPPORT ASSY., Starter ring gear 12/14 pitch, 1.91:1drive
SUPPORT ASSY., Starter ring gear 12/14 pitch, 3.25:1drive
SUPPORT ASSY.. Starter ring gear 10/12 pitch, 2.55:1drive
SUPPORT ASSY., Starter ring gear 10/12 pitch, 3.25:1driveGEAR, Starter ring, 10/12 pitchGEAR, Starter ring, 12/14 pitch
GEAR, CrankshaftLOCKPLATE, Crankshaft gearSCREW, 5/16-24 x 1.00 long
0N QUANTITY PER ASSEMBLY
A AA AAE E E E E E E E E EL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B AF A B C D F G H D H
11 111 11 1 1
1 1 11111 1 1
11
111
3332221 1 1
5 5 5 5 32
1 1 1 1 11111115
1 1
1 1 1555
1 11555
15
1 1 1
1 1 1 1 1 1
1 1 1 1 1 1
1
1
1 1 11 1 1 1
11 1
1 11 1
1111
1-7
9
5
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
2
10
3
8
LW-17060LW-17066
4 -6
4
LW-17061LW-17067
4
LW-12446LW-17063LW-17064
Figure 4. CRANKSHAFT AND RELATED PARTS
1-8
FIG.REF.
5
1
2345
PARTNUMBER
LW-18837LW-188387611876121LW-18667MS16625-1081
Lycomlng 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCAMSHAFT AND RELATED PARTS
DESCRIPTION
CAMSHAFT ASSEMBLYCAMSHAFT ASSEMBLY
SPACER, Tachometer shaft centeringSHAFT ASSY., Tachometer
PIN, 3/16 dia. x 2-21/64 longRING, Internal retaining
QUANTITY PER ASSEMBLY
A A A A E E E E E E E E E E E
C C 222311222222233BCDBAFABCDFGHDH1 1 1 11 1 1 1 1 1 1 1 1
1 11111
1-9
4
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
2
Figure 5. CAMSHAFT AND RELATED PARTS
1-10
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPPROPELLER GOVERNOR DRIVE ASSEMBLY
FIG.REF. PART
6 NUMBER
1 778752 LW-140213 778744 778725 STD-196 STD-7987 73249
732507325173252
8 AN565B1032H59 70455
10 LW-1389678589*74058*
11 7205312 7237813 STD-35**14 STD-47515 STD-1410
DESCRIPTION
GEAR, Prop. governor drivenSHAFT, Prop. governor idler gearGEAR ASSY., Prop. governor idler
BUSHING, Prop. governor gearDOWEL, 3/32 dia. x 7/32 longDOWEL, 3/32 dia. x 9/32 long
WASHER, ThrustWASHER, ThrustWASHER, ThrustWASHER, ThrustSET SCREW, No. 10-32 x 5/16 longGASKET, 25/32 I.D. x 1-1/8 0.D. x 1/16 thickPLUG, 3/4-16 hex. hd.PLUG, Prop. governor idler shaftPLUG, Prop. governor drive gearGASKET, GovernorCOVER, Governor driveWASHER, 5/16 plainWASHER, 5/16 lock, internal teethNUT, 5/16-18 plain
0N
A AAL 2 2L B C
QUANTITY PER ASSEMBLY
AAEEEEEEEEEEE2311222222233DBAFABCDFGHDH
1 11 11 12 21 11 1
AR ARAR ARAR ARAR AR1 11 11 1
11
AR44
1111
AR44
* Governor plugs are used when not employing a propeller governor drive.** 32 required for Woodward governor; 4 required for "AN" governor.
1-11
-15
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
1312
-11
98
-4
Figure 6. PROPELLER GOVERNOR DRIVE ASSEMBLY
1-12
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKSHAFT IDLER GEARS
FIG.REF.
7PART
NUMBER DESCRIPTION
0N QUANTITY PER ASSEMBLY
A A A A A E E E E E E E E E E EL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H D H11
1 615442 74996
749963 77309
773094 750725 773096 LW-137967 STD-21678 STD-2168
PLUNGER, Fuel pump; longGEAR ASSY., Crankshaft idler, plainGEAR ASSY., Crankshaft idler, plain
BUSHING, Crankshaft idler gearBUSHING, Crankshaft idler gear
GEAR ASSY., Crankshaft idlerBUSHING, Crankshaft idler gear
SHAFT, Crankshaft idler gearSCREW, 5/16-18 x 7/8 long, hex. hd. dr.NUT, 5/16-18 NC-3 slotted shear
222 2 2 21
222 2 2 211231
1-13
6
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
8
3.5
11
Figure 7. CRANKSHAFT IDLER GEARS
1-14
Lycoming 0-320-A and E SERIES PARTLOW COMPRESSION: Wide Cylinde
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKCASE ATTACHING PARTS
ES PARTS CATALOGer Flange Crankcase Model Engines
FIG.REF. PART
8 NUMBER
1 STD-14142 STD-83 608034 STD-20845 STD-14196 STD-1607 STD-14118 STD-14169 STD-8
10 STD-140911 STD-3312 AN960-616L13 STD-87214 AN6-34A15 STD-33
STD-3316 STD-678
STD-67817 STD-596
STD-596LW-11866*
18 76220
0N QUANTITY PER ASSEMBLY
A A AA AE E E EE EE EEEEL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H D H
DESCRIPTION
BOLT, 1/4-20 x 1-1/2 long, hex. hd.WASHER, 1/4 plainSTRAP, LiftingBOLT, 1/4-20 x 1-3/4 long, hex. hd.BOLT, 1/4-20 x 1-1/8 long, hex. hd.WASHER, 1/4 lock, internal teethNUT, 1/4-20 plainBOLT, 1/4-20 x 1-1/2 long, hex. hd. dr. endWASHER, 1/4 plain (max. 9)NUT, 1/4-20 slotted shearWASHER, 3/8 plainWASHER, 3/8 plain (thick) (max. 3)NUT, 3/8-24 slottedBOLT, 3/8-24 x 3-37/64 long, hex. hd.WASHER, 3/8 plainWASHER, 3/8 plainWASHER, 3/8 lock, internal teethWASHER, 3/8 lock, internal teethNUT, 3/8-24 plainNUT, 3/8-24 plainNUT, Spacer, compressorSTUD, 1/2-20 x 10-45/64 long
819 19 19 19
11
19 20 19 19 19 19 20 19 19 19 19
33333433334333312 12 12 12 12 13 12 12 12 12 13 12 12 12 12
93
AR33
AR1
22222122221 2 2 222
5 6 62
12
1 2 24
* Used on installations to provide for mounting of York freon compressor.
1-15
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
1,12,13,15
-2.5,6,9 8,10
Figure 8. CRANKCASE ATTACHING PARTS
1-16
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ACCESSORY HOUSING AND RELATED PARTSACCESSORY HOUSING ASSEIVIBLY
FIG.REF. PART
9 NUMBER
0N QUANTITY PER ASSEMBLY
A AA AA E E E E E E E E E EEL 2 2 2 3 1 1 2 2 22222 3L B C D B A F A B C D F G HD H1
DESCRIPTION
1 738182 76103
76104
76107
76110
76111
76927
LW-12408
LW-12712
LW-12782
LW-14416
3 614004 25C-225 31C-12
31C-126 31C-19
31C-197 31CD-178 25C-119 25C-31
10 31C-1311 1102
110212 STD-78413 7331714 7611915 STD-100616 75626
GASKET, Accessory. housingHOUSING ASSY., Accessory (one plain, one impulsemag. and AC fuel pump provisions)
HOUSING ASSY., Accessory (one plain, one impulsemag., AC fuel pump and vac. & hyd. drive provisions)
HOUSING ASSY., Accessory (one plain, one retard mag.and AC fuel pump provisions)
HOUSING ASSY., Accessory (one plain, one impulsemag. and AC fuel pump provisions)
HOUSING ASSY., Accessory (one plain, one retard mag.and AC fuel pump provisions)
HOUSING ASSY., Accessory (machined for vacuumpump and fuel pump pad; Gov. pad unmachined)
HOUSING ASSY., Accessory (machined for vacuumpump and fuel pump pad; Gov. pad unmachined)
HOUSING ASSY., Accessory (one plain, one impulsemag., machined for vacuum pump and AC fuel pumpdrives; Gov. pad unmachined)
HOUSING ASSY., Accessory (two impulse mags.,machined for vacuum pump and AC fuel pump drives;Gov. pad unmachined)
HOUSING ASSY., Accessory (one plain S4LN-20 andone impulse S4LN-21 mag., pressure tap on side offilter pad)STUD, 1/4-20 x 1-3/16 longSTUD, 1/4-20 x 2-3/4 longSTUD, 5/16-18 x 1-1/2 longSTUD, 5/16-18 x 1-1/2 longSTUD, 5/16-18 x 2-3/8 longSTUD, 5/16-18 x 2-3/8 longSTUD, 5/16-18 x 2-3/16 long, drilledSTUD, 1/4-20 x 1-3/8 longSTUD, 1/4-20 x 3-7/8 longSTUD, 5/16-18 x 1-5/8 longPLUG, 1/8-27 NPTPLUG, 1/8-27 NPTPLUG, 3/8-18 NPTTUBE, Accessory breatherSHIELD, Oil, accessory breather
RING, Oil seal, 7/16 I.D. x 3/32 dia.PLUG, 5/8 O.D. x 3/4 long
1 1 1 1 1 1
1
1
1 11 1 1
1
1 1 1 1
1
1 1
1
12 2 2 2
12 2 2 2
468266666 6666266
2 2 2222222222 22222
43
13
22
311
31111
11
1 11
11111 111 1 1 1
1 1 1 11 1 1 1
1 1 1 11 1 1 1
2-1
5
13 Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
16
Figure 9. ACCESSORY HOUSING ASSEMBLY
2-2
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ACCESSORY HOUSING AND RELATED PARTSOIL PUMP ASSEMBLY AND ACCESSORY HOUSING ATTACHING PARTS
FIG.REF.10
PARTNUMBER DESCRIPTION
1 785282 STD-13393 LW-137754 611745 607466 STD-357 STD-14208 LW-142609 STD-8
10 STD-16011 STD-120412 STD-1414
BODY ASSY., Oil pumpPLUG, 1/16-27 NPT, Allen head
IMPELLER ASSY., Oil pump drivenSHAFT, Oil pump driveIMPELLER, Oil pump drivingWASHER, 5/16 plainNUT, 5/16-18 slottedSEAL, Tachometer drive, oilWASHER, 1/4 plainWASHER, 1/4 lock, internal teethBOLT, 1/4-20 x 15/16 long, hex. hd.BOLT, 1/4-20 x 1-1/2 long, hex. hd.
0N QUANTITY PER ASSEMBLY
A A A A A E E E E E E E E E EEL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H H11111331
1212102
2-3
8
/
/
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
9,10,11
9,10,12
5
Figure 10. OIL PUMP ASSEMBLY AND ACCESSORY HOUSING ATTACHING PARTS
2-4
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ACCESSORY HOUSING AND RELATED PARTSPROPELLER GOVERNOR OIL LINE
FIG.REF.11
PARTNUMBER
1 75166*75167**75730**
2 STD-19303 751654 STD-355 STD-4756 STD-18387 LW-16266-25-388 MS20822-6*9 74070
10 MS29512-0611 7573912 MS29512-06
DESCRIPTION
TUBE ASSY., Prop. governor oil lineTUBE ASSY., Prop. governor oil lineTUBE ASSY., Prop. governor oil lineHOSE, 3/8 I.D. x 1.00 longCLIP, Prop. governor oil line supportWASHER, 5/16 plainWASHER, 5/16 lock, internal teethBOLT, 5/16-18 x 15/16 long, hex. hd.CLAMPELBOW, 3/8 flared tube & 1/4 NPT, 90°
ELBOW, 3/8 flared tube & 9/16-18 str. thd., adj. 45°
RING, "O"NIPPLE, 3/8 flared tube & 9/16-18 str. thd.
RING, "O"
00 QUANTITY PER ASSEMBLY
A A A A A E E E E E E E E E EEL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H D H
11 111 11 13 31 11 11 11 11 11 111
* Used with nipple at gov. drive adapter set-up with generator.** Used with 45 elbow at gov. drive adapter set-up with alternator.* Assemble in right crankcase, front.
Assemble in prop. governor adapter.
2-5
11
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
8
-2
///3
4
-5
6
9
Figure 11. PROPELLER GOVERNOR OIL LINE
2-6
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ACCESSORY HOUSING AND RELATED PARTSPROPELLER GOVERNOR DRIVES AND COVERS
FIG.REF. PART12 NUMBER
1 683172 715963 STD-12214 683155 75153*
75545**6 11027 31C-16*
31C-14**8 STD-17749 STD-35
10 STD-47511 STD-141012 6955113 7205314 6910615 7237816 STD-35*17 STD-47518 STD-141019 STD-783
0NALL
DESCRIPTION
SHAFTGEAR, Prop. governor driveWASHER, Accessory driven gearRING, 13/16 dia. x 27/64 thick, internal retainingGASKET, Accessory drive adapterADAPTER ASSY., Prop. governor driveADAPTER ASSY., Prop. governor drive
PLUG, 1/8-27 NPT, AllenSTUD, 5/16-18 x 2.00 longSTUD, 5/16-18 x 1-3/4 longPIN, 1/8 dia. x 1/4 long
WASHER, 5/16 plainWASHER, 5/16 lock, internal teethNUT, 5/16-18 plainGASKET, Accessory drive adapterGASKET, GovernorCOVER, Governor drive adapter padCOVER, Governor drive adapter padWASHER, 5/16 plainWASHER, 5/16 lock, internal teethNUT, 5/16-18 plainPLUG, 1/4-18 NPT, Allen hd.
QUANTITY PER ASSEMBLY
A A A A E E E E E E E E E E EAAAEEEEEEEEEEE222311222222233BCDBAFABCDFGHDH
1 11 11 11 11 11 11 14 44 41 14 44 44 4
1 1 1111 11 11 1
1 1 1111 11 1
4 44 44 41 1
1 1AR AR 4444444
444 44 4444 44 4444 44 4111 1 1
* Adapter assembly and studs for Woodward governor installations.** Adapter assembly and studs for "AN" governor installations.* 32 required for Woodward governor, 4 required for "AN" governor.
Assemble in right crankcase, front.
2-7
17
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
12
14-
118-
r
16
19
10
Figure 12. PROPELLER GOVERNOR DRIVES AND COVERS
2-8
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ACCESSORY HOUSING AND RELATED PARTSFUEL PUMP ASSEMBLY AND ATTACHING PARTS
FIG.REF. PART13 NUMBER
1 600962 LW-154723 STD-334 STD-18825 650986 STD-337 LW-38.758 STD-678
QUANTITY PER ASSEMBLY
DESCRIPTION
GASKET, Fuel pumpFUEL PUMP, Low pressure, dual diaphragm (6441271)WASHER, 3/8 plainSCREW, 3/8-16 x 1-9/32 long, socket hd., dr. hd.COVER, Fuel pumpWASHER, 3/8 plainBOLT, 3/8-16 x 3/4 long, hex. hd.WASHER, Lock
A A A A E E E E E E E E E E EL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L BC DBAF A B DF G HDH1
111112222222222111 1222 2222 2222 2
1 1 1 1 12222222222
1 12 22 22 2
1 12 22 2
1 12 22 2
1 12 22 22 2
2-9
6
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
8
7
1
-2
4
Figure 13. FUEL PUMP ASSEMBLY AND ATTACHING PARTS
2-10
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ACCESSORY HOUSING AND RELATED PARTSVACUUM PUMP DRIVE AND DUAL DRIVE ASSEMBLIES
FIG.REF. PART14 NUMBER
1 611832 610983 STD-17744 STD-22175 729706 715967 703478 697259 61262
10 6972411 6614512 6931913 7159614 STD-207215 6931616 6973017 6973118 7159619 7323120 6972021 6974222 STD-54823 STD-221724 6994225 6972226 6931827 STD-93828 STD-133929 STD-830 STD-16031 STD-141132 STD-833 STD-16034 STD-141135 STD-69636 7102337 STD-16038 STD-1215
0NALL
DESCRIPTION
GASKET, Accessory adapterADAPTER ASSY., Vacuum pump
PIN, 1/8 x 1/4 longSEAL, Oil, 7/8 I.D. x 1-1/2 O.D. x 5/16
GEAR ASSY., Vacuum pump drivenWASHER, Accessory driven gearDUAL DRIVE ASSY., Vacuum pump & hydraulic pump
ADAPTER ASSY., Dual accessory driveSTUD, 1/4-20 x 1-17/32 longSTUD, 1/4-20 x 3-5/8 longDOWEL, 1/4 dia. x 1/2 long
GEAR ASSY., Accessory driveWASHER, Accessory driven gear
RING, "O", Static sealGEAR, Dual accessory driveGEAR ASSY., Accessory idler
BUSHING, Accessory idler gearWASHER, Accessory driven gearGEAR ASSY., Vacuum pump drivenGASKET, Dual accessory drive adapter coverCOVER ASSY., Vacuum & hydraulic pump drive
SEAL, Oil, 7/8 I.D. x 1-3/8 O.D. x 5/16SEAL, Oil, 7/8 I. D. x 1-1/2 O.D. x 5/16STUD, 1/4-20 x 1-17/32 longSTUD, 1/4-20 x 1-15/16 longSHAFT, Accessory idler gearDOWEL, 3/32 dia. x 11/32 longPLUG. 1/16-27 NPT, Allen
WASHER, 1/4 plainWASHER, 1/4 internal lockNUT, 1/4-20 plain
WASHER, 1/4 plainWASHER, 1/4 lock, internal teethNUT, 1/4-20 plainWASHER, 17/64 I.D. x 1/2 O.D. x 1/32 thickBRACE, Dual driveWASHER, 1/4 lock, internal teethBOLT, 1/4-20 x 1-1/4 long, hex, hd.
QUANTITY PER ASSEMBLY
222311222222233BCDBAFABC DFGHDH11 11111111111111 11111111111111 11111111111111 11111111111111 11111111111111 111111111111
1113211111121111121112222111
AR111
2-11
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
19
1
1
26-
31
Figure 14. VACUUM PUMP DRIVE AND DUAL DRIVE ASSEMBLIES
2-12
IntentionallyLeft
Blank
FIG.REF. PART15 NUMBER
1 83132 604303 68593
747714 STD-85 STD-1606 STD-14117 83138 604309 STD-8
10 STD-16011 STD-1411
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ACCESSORY HOUSING AND RELATED PARTSACCESSORY DRIVE COVERS
DESCRIPTION
GASKET, Vacuum pumpCOVER, Vacuum pumpSPACER, Vacuum pump studSPACER, Vacuum & hydraulic dual drive studWASHER, 1/4 plainWASHER, 1/4 lock, internal teethNUT, 1/4-20 plainGASKET, Vacuum and hydraulic- pumpCOVER, Vacuum and hydraulic pumpWASHER, 1/4 plainWASHER, 1/4 lock, internal teethNUT, 1/4-20 plain
0N QUANTITY PER ASSEMBLY
A A A A A E E E E E E E E E E EL 2 2 2 3 11 2 2 2 2 2 2 2 33L BCDB AFABCDF G H D H
11 1111111111111
444443
444 4 4
444
22888
Figure 15. ACCESSORY DRIVE COVERS
2-13
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ACCESSORY HOUSING AND RELATED PARTSOIL FILTER ASSEMBLY AND OIL COOLER BYPASS VALVE
FIG.REF PART16 NUMBER
1 69436*2 62415*3 STD-2944 624175 STD-7846 696757 711408 AN844-10D9 71623
10 AN777-8D11 AN901-8A12 7162013 7241314 6273215 AN816-816 6281717 6117318 6897419 6281520 69510**21 STD-29422 STD-8
STD-823 STD-1856
STD-185624 STD-29425 LW-1279526 7785227 7785328 LW-1321529 STD-830 STD-16031 STD-141132 STD-185633 7594434 7651035 25C-10
DESCRIPTION
SPRING, Oil cooler bypassPLUNGER, Oil cooler bypassGASKET, 7/8 O.D. x 5/8 I.D. x 3/32 annularPLUG, Oil cooler bypassPLUG, 3/8 pipeCONNECTOR, Accessory housing to oil cooler inlet hoseFITTING, Breather (assemble in accessory housing)ELBOW, Breather, 45° (assemble in accessory housing)WASHER, Oil cooler fittingELBOW, Universal, 75°
GASKET, Metal tube connection sealBOLT, Oil cooler fittingFITTING, Breather, 120° elbow (assemble in acc. hsg.)CAP, Tachometer drive (assemble in acc. hsg.)NIPPLE, 1/2 flared tube, 3/8 NPTSCREEN ASSY., Oil pressureGASKET, Oil pressure housingHOUSING, Oil pressure screenHOUSING, Oil pressure screenHOUSING, Thermostatic valve and pressure screenGASKET, 7/8 O.D. x 5/8 I.D. x 3/32 annularWASHER, 1/4 plainWASHER, 1/4 plainSCREW, 1/4-20 x 31/32 to 1.00 long, hex. hd. slottedSCREW, 1/4-20 x 31/32 to 1.00 long, hex. hd. slottedGASKET, 7/8 O.D. x 5/8 I.D. x 3/32 annularGASKET, Oil filter adapterOIL FILTER BASE ASSY.OIL FILTER HOUSING ASSY.FILTER, Oil, short (spin on)WASHER, 1/4 plainWASHER, 1/4 lock, internal teethNUT, 1/4-20 plainSCREW, 1/4-20 x 31/32 to 1.00 long, hex. hd. slottedVALVE ASSY., Temp. control, oil cooler bypass
GASKET, Valve assemblySTUD, 1/4-20 x 1-1/4 long
QUANTITY PER ASSEMBLY
A A A A E E E E E E E E E E E2 C D 222311222222233
CD BAFABCDFGHH
1 1 1 11 1 11
11 1 1 1 1 1 1 1
11111111
1111 1 11
1 11 11 11 11 11 1
2
1 11 1 1
11 11 11 11 11 1
11
1 11 1
111111
111111
11
11
1 1 1
114
34
32211
2 21 11 114 41 11 13 3
2 21 111 14 41 11 13 3
4113
11
1 1 1 1 1
* Not required when thermostatic bypass valve is used.** Provision for thermostatic valve in oil screen housing.
2-14
8
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
17-
16
18,19,20
21
13 7
28
Figure 16. OIL FILTER ASSEMBLY AND OIL COOLER BYPASS VALVE
2-15
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CYLINDER, PISTON AND VALVE TRAINCONNECTING RODS, PISTONS AND RING ASSEMBLIES
FIG.REF. PART17 NUMBER
1 780302 LW-139233 780274 LW-121865 693736 75413
750897 LW-14068
LW-14077LW- 14078
8 60828LW-11775
9 74989*74241**
10 73857
DESCRIPTION
ROD ASSY., ConnectingBUSHING, Connecting rod, upperBOLT, Connecting rodNUT, Connecting rod
BEARING, Connecting rodPISTON, Compression ratio 7.00:1PISTON, Compression ratio 8.50:1PIN, Piston (49/64" I.D.) See NotePIN, Piston (9/16" I.D.) See NotePIN, Piston (37/64" I.D.) See NotePLUG, Piston pinPLUG, Piston pin (piloted in piston pin)RING, Piston, compressionRING, Piston, compressionRING, Piston, oil regulating (expander type)
QUANTITY PER ASSEMBLY
AAAA E E E E E E E E E E E
B F F 222311222222233BCDBAFABCDFGHDH
44888
44
44 44
88 8 88
888 8 888
4
* Chrome ring for plain cylinders.** Chrome ring for nitridec cylinders.
NOTE
Refer to latest Service Instruction No. 1267 for piston pin andplug usage.
3-1
-4
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
3
-8
2
-7
-8
Figure 17. CONNECTING RODS, PISTONS AND RING ASSEMBLIES
3-2
FIG.REF. PART18 NUMBER
1 LW-12416LW-12417
2 720573 720584 600285 742306 667967 STD-18728 31C-129 25C-9
10 MS20823-6D11 6661012 1102*
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CYLINDER, PISTON AND VALVE TRAINCYLINDER ASSEMBLY
DESCRIPTION
CYLINDER AND HEAD ASSY., NitridedCYLINDER AND HEAD ASSY., Plain
SEAT, Intake valveSEAT, Exhaust valveGUIDE, Valve intakeGUIDE, Valve exhaustINSERT, Spark plug (18-1.5mm)INSERT, 1/8-27 heli-coil, taper pipe threadSTUD, 5/16-18 x 1-1/2 longSTUD, 1/4-20 x 1-1/8 longELBOW, 45° , 3/8 flared tubeBUSHING, Rocker shaft
PLUG, 1/8-27 NPT, Allen head
QUANTITY PER ASSEMBLY
A A A A E E E E E E E E E E E222311222222233BCDBAFABCDFGHDH
4 4444448
8 8 888844
164444444 4444444
* Used on installations with no injector or priming system.
3-3
12
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
3
1
Figure 18. CYLINDER ASSEMBLY
3-4
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CYLINDER, PISTON AND VALVE TRAINVALVE ASSEMBLY
FIG.REF PART19 NUMBER
1 739382 LW-190013 LW-117954 LW-118005 654416 LW-133237 LW-100778 LW-164759 60009
10 MS13997-311 MS13998-312 7829013 7852414 6898715 LW-1499516 LW-1227217 STD-141118 6292219 70310
DESCRIPTION
VALVE, IntakeVALVE, Exhaust (rotator type)SPRING, Valve, innerSPRING, Valve, outerSEAT, Valve spring, lower intakeSEAT, Valve spring, lower exhaustSEAT, Valve spring, upper intakeSEAT, Valve spring, upper exhaust (rotator type)KEY, Valve, intakeKEY, Valve, exhaust (rotator type)CAP, Valve stem, exhaust (rotator type)PLUNGER ASSY., Hydraulic tappetSOCKET, Push rod, hydraulic tappetTUBE, Push rod shroudSPRING, Shroud tubeLOCKPLATE, Shroud tubeNUT, 1/4-20 plainSEAL, Shroud tubeSEAL, Shroud tube
QUANITITY PER ASSEMBLY
A A A A E E E E E E E E E E E222311222222233BCDBAFABCDFGHDH
4488444488488844488
3-5
-12
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
19
56
7
1 1
4
3
9,10-
Figure 19. VALVE ASSEMBLY
3-6
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CYLINDER, PISTON AND VALVE TRAINCYLINDER RELATED PARTS
FIG.REF. PART20 NUMBER
1 73411*73412*73413*73414*
2 LW-187903 746374 746365 746376 LW-137907 LW-128928 759069 61247
10 STD-192511 7148112 7488713 383-B14 STD-209015 65321
7761175118
16 6126061259
17 STD-3518 STD-47519 STD-1410
QUANTITY PER ASSEMBLY
A A A A E E E E E E E E E E E2 C D 222311222222233BCDBAFABCDFGHDH
DESCRIPTION
ROD ASSY., PushROD ASSY., PushROD ASSY., PushROD ASSY., PushROCKER ASSY., Valve, intake
BUSHING, Valve rocker, intakeROCKER ASSY., Valve, exhaust
BUSHING, Valve rocker, exhaustSHAFT, Valve rockerTHRUST BUTTON, Rocker shaftGASKET, Cover, rocker boxCOVER, Rocker boxSCREW, 1/4-20 x 5/8 long, pan hd., self lockingRING, Oil seal, 3/32 x 4-27/32 I.D.SPACER, 33/64 I.D. x 7/8 O.D. x 3/8 thickNUT, 3/8-24 plainNUT, 1/2-20 plainGASKET, Exhaust flange, copper/asbestosGASKET, Exhaust flange, stainlessGASKET, Exhaust flange, copperFLANGE, Exhaust, stainlessFLANGE, Exhaust, carbonWASHER, 5/16 plainWASHER, 5/16 lock, internal teethNUT, 5/16-18 plain
ARARARAR44444844
2442
16184
4 48
444444444444
888
* A total of 8 required.
3-7
1
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
l
12
7
9
17
19
Figure 20. CYLINDER RELATED PARTS
3-8
IntentionallyLeft
Blank
FIG.REF. PART21 NUMBER
1 STD-6842 STD-21803 LW-15592-5-054 687595 687606 687617 725698 716119 71610
1
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
CYLINDER, PISTON AND VALVE TRAINCYLINDER HEAD DRAIN TUBES AND INTERCYLINDER COOLING BAFFLES
DESCRIPTION
NIPPLE, Straight, 3/8 I.D. hoseHOSE, 3/8 I.D. x 1-13/16 longCLAMP, HoseTUBE ASSY., Oil drain, cylinder no. 1TUBE ASSY., Oil drain, cylinder no. 2TUBE ASSY., Oil drain, cylinders no. 3 & 4BAFFLE ASSY., IntercylinderRETAINER, IntercylinderHOOK, Intercylinder baffle retainer
QUANTITY PER ASSEMBLY
A A A| A| E E E E E E E E E E E
C G
448112222
Figure 21. CYLINDER HEAD DRAIN TUBES AND INTERCYLINDER COOLING BAFFLES
3-9
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
IGNITION SYSTEMMAGNETOS AND MAGNETO DRIVES
FIG.REF PART22 NUMBER
1 6166561665
2 724953 STD-761
STD-7614 611635 62224
622246 LW-127067 LW-126818 LW-51360-29
LW-51360-37LW-163045-3LW-163005-2LW-349305-1LW-349365-3LW-163045-6LW-51360-45
9 LW-1563510 LW-1563611 7774312 LW-1563713 LW-1563814 7774515 LW-1659116 LW-1563817 7774318 75965
7696119 STD-172720 STD-47521 STD-141022 7673423 LW-1405724 LW-1406025 LW-52305-1
LW-52305-1LW-157209
26 LW-15720827 1182-B3*
1182-B7*1182-F3*1182-05*1182-U4*
DESCRIPTION
GEAR, Magneto, impulse couplingGEAR, Magneto, impulse couplingGEAR, Magneto, retard breakerPIN, Cotter, 3/32 dia. x 1.00 longPIN, Cotter, 3/32 dia. x 1.00 longGEAR, MagnetoGASKET, Magneto adapter and magnetoGASKET, Magneto adapter and magnetoADAPTER, Magneto, impulse couplingGASKET, MagnetoMAGNETO, S4LN-20MAGNETO, Impulse coupling, S4LN-21MAGNETO, S4LN-204MAGNETO, Retard breaker, S4LN-200MAGNETO, S4LN-1209MAGNETO, Impulse coupling, S4LN-1227MAGNETO, w/Electric tach. pick-up, S4LN-204MAGNETO, Impulse coupling/feed thru cap., S4LN-21MAGNETO AND HARNESS ASSY., Right (Slick)
MAGNETO, Right, Slick model 4250HARNESS ASSY., Ignition, right
MAGNETO AND HARNESS ASSY., Left (Slick)MAGNETO, Left, (Slick model 4251, impulse coupling)HARNESS ASSY., Ignition, left
MAGNETO AND HARNESS ASSY., Right (Slick)MAGNETO, Right (Slick model 4251, impulse coupling)HARNESS ASSY., Ignition, right
CLAMP, MagnetoCLAMP, MagnetoWASHER, Plain, 3/4 O.D. x 21/64 I.D. x 1/8 thickWASHER, 5/16 lock, internal teethNUT, 5/16-18 plainSTRAP, ZipCLIP, 1 wireCLIP, 2 wireKIT ASSY., Magneto ground terminalKIT ASSY., Magneto ground terminalKIT ASSY., Magneto ground terminalKIT ASSY., Magneto retard terminalSPARK PLUG, Champion (REM-40E)SPARK PLUG, Champion (REM37BY)SPARK PLUG, AC (SR-88)SPARK PLUG, AC (SR-93)SPARK PLUG, Auto-Lite (SH-15)
QUANTITY PER ASSEMBLY
AAAA E E E E E E E E E E E222311222222233BCDBAFABCDFG HDH
1 1 1 1 1 1 1 1 1 1 1 1 12
1 112
1 1 1
1321
21 2
2
331321111 13
1 1 1 1 1 1 1 1 1 12 2222 2
1
1 1 11 1 1
1 11
1 11 1
11
1 1 11 1 1
1 11
111111111
1 1 11 1 11 1 11 1 11 1 11 1 1
4444
4 4 44 4 4
44 4 44444 444
823
8 8 82 2 23 3 3
2211
2 2 2
21
2 21
88
88
8
* Item No. 27 spark plugs are used in current production only. Additional spark plugs are available for these engines.Lycoming Service Instruction No. 1042 for complete listing of all approved spark plugs.
See latest edition of
4-1
14
Lycoming0-320-A and E SERIES PARTS CATALOG
LOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
-6
14
13
23
11,17
Figure 22. MAGNETOS AND MAGNETO DRIVES
4-2
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
IGNITION SYSTEMIGNITION HARNESS AND LEAD ASSEMBLY
FIG.REF. PART23 NUMBER
1 LW-M-2403LW-M-2415LW-M-2404LW-M-2416
2 LW-M-23753 723514 LW-140605 LW-140576 LW-16266-25-507 STD-88 STD-1609 AN500-416-18
10 STD-187411 STD-121512 STD-141113 STD-69614 7191015 LW-18959-150-2516 STD-55317 AN365-632A18 76734
* M-1985-48
* M-1985-48
* M-1985-72
* 76923-48S70-63
* 76923-48S90-63* 76923-48S70-63* 10-720632-48
* 76923-72S90-63
* 76923-48S90-63
* 76923-48S70-63
* 76923-72S90-63* 76923-48S70-63
DESCRIPTION
HARNESS ASSY., Magneto (left)HARNESS ASSY., Magneto (left)HARNESS ASSY., Magneto (right)HARNESS ASSY., Magneto (right)PLATE, Spark plug cableSCREW, No. 10-32 self-lockingCLIP, Two wire for 1/4 screwCLIP, One wire for 1/4 screwCLAMPWASHER, 1/4 plainWASHER, 1/4 lock, internal teethSCREW, 1/4-20 x 1-1/8 long, fillister headSCREW, 1/4-20 self-lockingSCREW, 1/4-20 x 1-1/4 longNUT, 1/4-20 plainWASHER, 1/4 plainCLAMP, 1-3/4 I.D.CLAMP, 1-1/2 I.D.SCREW, 6/32 x 1/2 long, rd. hd.NUT, 6/32 self-lockingZIP STRAPLEAD ASSY., Replacement top & bottom leads(LW-M-2403 & LW-M-2404 harnesses)
LEAD ASSY., Replacement top & bottom leads except for1T & 2T (LW-M-2415 & LW-M-2416 harnesses)
LEAD ASSY., Replacement for 1T & 2T leads(LW-M-2415 & LW-M-2416 harnesses)
LEAD ASSY., Replacement, top and bottom leads(78539 harness)
LEAD ASSY., Replacement, top leads (78540 harness)LEAD ASSY., Replacement, bottom leads (78540 harness)LEAD ASSY., Replacement, top & bottom leads(LW-720505-1 harness)
LEAD ASSY., Replacement for 1T & 2T leads (78546harness)
LEAD ASSY., Replacement for 3T & 4T leads (78546harness)
LEAD ASSY., Replacement, bottom leads (78546harness)
LEAD ASSY., Replacement, top leads (LW-10177 harness)LEAD ASSY., Replacement, bottom leads (LW-10177harness)
0 QUANTITY PER ASSEMBLY
A A A A A E E E E E E E E E E EL 2 2 2 3 1 1 2 2 2 2 2 2 2 33L BC D B AF A B C D F G H D H
11 1 1 1 1 1 11 1 1
11 11 1 11 1 1
1 1
22 2222288 88 8822 22222
2 2
2 22 2 21 1 1
2 28 82 2
2 22 21 1
22 2282222 22 2211 11 11
8 8
4 4 411 11 1122 22 22
AR AR AR
1 12 2
4 4 444 444 4444 4422 22
4 44 4
6 2 2 6
4 44
4 44 4
6 2 2
AR ARAAR AR AR AR AR
AR AR AR
AR AR AR
AAR AR AR AR ARARAR
AR
AR AR AR
AR AR AR
AR AR ARAF
AF
* Replacement lead assemblies have spark plug terminal end assembled and are shipped with necessary parts to complete magneto endassembly after being cut to proper length.
4-3
18
2
7,13
8
12
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
4,15
11
Figure 23. IGNITION HARNESS AND LEAD ASSY. (SLICK)
4-4
IntentionallyLeft
Blank
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ELECTRICAL COMPONENTSALTERNATOR ASSEMBLY
FIG.REF.24
PARTNUMBER DESCRIPTION
QUANTITY PER ASSEMBLY
A A A A E E E E E E E E E E E
F GBCDBAFABCDFGHDH
1 11111 1 11
1 78308LW-14316LW-14319LW-1430876496
2 6088676026
ALTERNATOR, 12 volt - 40 amp (ALE-8406)ALTERNATOR, 12 volt - 70 amp (ALX-8421)ALTERNATOR, 24 volt - 50 amp (ALT-8421)ALTERNATOR, 24 volt - 60 amp (ALY-8420)ALTERNATOR, 12 volt - 40 amp (ALE-8105A)BELT, Generator driveBELT, Alternator drive
1 1
11111111
1 1 1 11
11 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1
Externally grounded. 3.25 1 ratio
Figure 24. ALTERNATOR ASSEMBLY
5-1
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ELECTRICAL COMPONENTSGENERATOR MOUNTING AND ATTACHING PARTS
FIG.REF. PART25 NUMBER
1 704192 733833 STD-18384 760285 STD-356 LW-31H.757 STD-17278 LW-31H.759 STD-1851
STD-1836*STD-1837*
10 STD-3511 STD-142012 STD-68
QUANTITY PER ASSEMBLY
AAAA E E E E E E E E E E E222311222222233BCDBAFABCDFG HDH
DESCRIPTIONI
BRACKET, GeneratorLOCKPLATE, 5/16 bolt x 1.00 spacingBOLT, 5/16-18 x 15/16 long, hex. hd.LINK, Generator adjustingWASHER, 5/16 plainBOLT, 5/16-18 x 3/4 long, hex. hd. dr.WASHER, Plain, 3/4 O.D. x 11/32 I.D. x 1/8 thickBOLT, 5/16-18 x 3/4 long, hex. hd. dr.BOLT, 5/16-18 x 1-5/32 long, dr. endBOLT, 5/16-18 x 1-29/32 long, hex. dr. endBOLT, 5/16-18 x 2-9/32 long, hex. dr. endWASHER, 5/16 plainNUT, 5/16-18 slottedPIN, Cotter, 1/16 dia. x 1/2 long
22 2 2 222 2 2 244 4 4 411 1 1 111 1 1 111 1 1 111 1 1 111 1 1 122 2 2 211
AR AR2 22 2
AR22
AR AR2 22 2
* Special bolts for Piper installations.
5-2
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
4-
7-
2
1
-2
310
9
Figure 25. GENERATOR MOUNTING AND ATTACHING PARTS
5-3
| i ^^ i ^1 i Lycomingi u-WVu-n aiiu c OcnIllll0 LycornIIIg LOW COMPRESSION: Wide Cylinde
ELECTRICAL COMPONENTSALTERNATOR MOUNTING AND ATTACHING PARTS
ES PARTS CATALOGr Flange Crankcase Model Engines
FIG.REF. PART26 NUMBER
1 74324LW-13039*76906**
2 733833 LW-133654 STD-4755 STD-18386 74325
75380LW-10729*
7 STD-358 LW-31H.75
STD-18589 STD-1727
10 LW-31H.7511 74323
76908**12 LW-31H.75
STD-185813 STD-69014 AN6-32
AN6-1415 STD-69016 STD-87217 STD-71318 AN6-13
AN6-1619 7653420 STD-69021 STD-87222 STD-713
QUANTITY PER ASSEMBLY
A A A A E E E E E E E E E E E
B C D B A F A B C D F G H D H222311222222233BCDBAFABCDFGHDH
DESCRIPTION
BRACKET, AlternatorBRACKET, AlternatorBRACKET, AlternatorLOCKPLATE, 5/16 bolt x 1.00 spacingBRACE, Alternator bracketWASHER, 5/16 lock, internal teethBOLT, 5/16-18 x 15/16 longLINK, Alternator adjustingLINK, Alternator adjustingLINK, Alternator adjustingWASHER, 5/16 plainBOLT, 5/16-18 x 3/4 long, hex. hd. dr.BOLT, 5/16-18 x 29/32 long, hex. hd. dr.WASHER, Plain, 3/4 O.D. x 11/32 I.D. x 1/8 thickBOLT, 5/16-18 x 3/4 long, hex. hd. dr.STRUT, Alternator supportSTRUT, Alternator supportBOLT, 5/16-18 x 3/4 long, hex. hd. dr.BOLT, 5/16-18 x 29/32 long, hex. hd. dr.WASHER, 13/16 O.D. x 25/64 I.D. x 1/16 thickBOLT, 3/8-24 x 3-21/64 long, hex. hd. dr. endBOLT, 3/8-24 x 1-37/64 long, hex. hd. dr. endWASHER, 13/16 O.D. x 25/64 I.D. x 1/16 thickNUT, 3/8-24 slottedPIN, Cotter, 3/32 dia. x 3/4 longBOLT, 3/8-24 x 1-7/16 long, hex. hd. dr. endBOLT, 3/8-24 x 53/64 long, hex. hd. dr. endSHIM, 1-1/8 0.D. x 13/32 I.D. x 1/64 thickWASHER, 13/16 O.D. x 25/64 I.D. x 1/16 thickNUT, 3/8-24 slottedPIN, Cotter, 3/32 dia. x 3/4 long
1 1 11 1 1 1 1 1 1 1 1 11 11
1 1 1 1 11
1 11 13 32
11
2222221
1 1 1 1 1 1
21
22222
1 1 1 1 1 11 1 1 1 1
11 1 1 1 1 1 1 1 1 1 1 1 11 1 11 111 11 1 1 1 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1 111
11 1 1 1 1 1
11111 11
AR AR AR AR AR AR AR AR AR AR AR AR
1111111111111111111111111 1 1 1 1 1 1 1 1 1 1
1 1AR AR AR AR AR AR AR AR AR AR AR ARARARARARAR AR AR AR AR AR AR AR AR AR AR1111111 11111 1 1 1 1 11 1 1 1 1
AR AR1 11 11 1
AR ARAR AR1 11 1
* Used on Prestolite installations.** Used on Cessna and Beech installations.
5-4
12-
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
6 9
9
31
-1516
7
3
Figure 26. ALTERNATOR MOUNTING AND ATTACHING PARTS
5-5
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
ELECTRICAL COMPONENTSSTARTER MOTOR AND ATTACHING PARTS
FIG.REF. PART27 NUMBER
1 76210*
LW-15571
LW-15572
LW-16460
2 STD-353 STD-4754 LW-31-1.09**
STD-21565 STD-1410
0 QUANTITY PER ASSEMBLY
A AAAAE E E E E E E E E E EL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H D H
DESCRIPTION
STARTER, 12 volt (no reduction) 10/12 pitch pinion(MZ-4204)
STARTER, 12 volt, 3.38:1 internal reduction, 12/14 pitchpinion (MZ-4222)
STARTER, 24 volt, 3.38:1 internal reduction, 12/14pitch pinion (MHB-4016)
STARTER, 12 volt, 3.38:1 internal reduction, 12/14pitch pinion (MZ-4224)
WASHER, 5/16 plainWASHER, 5/16 lock, internal teethBOLT, 5/16-18 x 1-3/32 long, hex. hd.BOLT, 5/16-18 x 1-5/32 long, hex. hd.NUT, 5/16-18 plain
1 1 1 1 1 1 1 1
1
1 1
1 144
1 1 1 1 1 1 1 113
* Do not use with 2.50:1 or 3.25:1 generator drive.** Used with 76210 starter.
5-6
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
3
5
Figure 27. STARTER MOTOR AND ATTACHING PARTS
5-7
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
OIL SUMP AND INDUCTION SYSTEMOIL SUMP ASSEMBLY AND OIL SUCTION SCREEN
FIG.REF PART28 NUMBER DESCRIPTIO
0N QUANTITY PER ASSEMBLY
A A A A A E E E E E E E E E E EL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C DF G H D H11 LW-13353
2 72362LW-10828
3 6137661377
4 789145 31C-156 614007 STD-918 STD-551
STD-5519 STD-8
STD-810 STD-16011 STD-1204
STD-120412 STD-141913 STD-1411
STD-141114 6082015 6138116 STD-122717 STD-143318 STD-819 STD-140920 STD-6821 6137822 STD-104523 6135824 7048425 STD-11126 LW-12545
GASKET, Oil sumpSUMP ASSEMBLY, OilSUMP ASSEMBLY, Oil
CONNECTION, Intake pipe, frontCONNECTION, Intake pipe, rearCONNECTION, Intake pipeSTUD, 5/16-18 x 1-7/8 longSTUD, 1/4-20 x 1-3/16 longPLUG, 1/2-14 NPT, Allen
PLUG, 1/2-14 NPT, Sq. hd. drilledPLUG, 1/2-14 NPT, Sq. hd. drilledWASHER, 1/4 plainWASHER, 1/4 plainWASHER, 1/4 lock, internal teethBOLT, 1/4-20 x 15/16 long, hex. hd.BOLT, 1/4-20 x 15/16 long, hex. hd.BOLT, 1/4-20 x 1-1/8 long, hex. hd.NUT, 1/4-20 plainNUT, 1/4-20 plainGASKET, Oil suction tube flangeTUBE ASSY., Oil suctionWASHER, 1/4 plain (copper)BOLT, 1/4-20 x 1-1/2 long, hex. hd. drilled endWASHER, 1/4 plain (max. 4)NUT, 1/4-20, slotted shearPIN, 1/16 dia. x 1/2 long, cotterSCREEN, Oil suctionGASKET, 1-1/4 I.D. x 1-1/2 O.D. x 3/32 annularPLUG, 1-1/2 hex. hd. x 1-1/4-12 thd.SCREEN, Oil suctionGASKET, 1.00 I.D. x 1-1/4 O.D. x 3/32 annularPLUG, 5/8 hex. hd. x 1.00-20 thd.
11111222222224
11 1 1 1 1 1 1 1 1 1
22
4444444 4444
441 1 1 12
32 32 32 3228
4444444 4444444444 444
12222222 222
32282828282828 28 28 28 28 28 28 28 28 28
2016 16 16 16 161414 14 4 14 14 14 14 1414 14
214 14 14 14121 1 1 1111122222222
AR AR AR AR22222222111111111111111
14121212121212 12 12 12 12 12 12 12 12 12
1 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 111111111111
6-1
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
3-
3
1
Figure 28. OIL SUMP ASSEMBLY AND OIL SUCTION SCREEN
6-2
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
OIL SUMP AND INDUCTION SYSTEMINTAKE PIPE ASSEMBLY
FIG.REF. PART29 NUMBER
1 LW-167282 LW-167303 LW-167294 74084*5 STD-1196
696036 LW-15592-8-287 717938 74360
73346LW-14555
9 STD-810 STD-16011 STD-1215
DESCRIPTION
PIPE, Intake, cyls. no. 1 and 2PIPE, Intake, cyl. no. 3PIPE, Intake, cyl. no. 4PIPE, IntakeHOSE, 1-1/2 I.D. x 1-7/8 O.D. x 1-1/2 longHOSE, 1-3/4 I.D. x 2-3/16 O.D. x 1-3/4 longCLAMP, HoseGASKET, 2 bolt flange, 1-7/8 I.D.FLANGE, Intake pipe, upperFLANGE, Intake pipe, upperFLANGE, Intake pipe, upperWASHER, 1/4 plainWASHER, 1/4 lock, internal teethBOLT, 1/4-20 x 1-1/4 long, hex. hd.
N QUANTITY PER ASSEMBLY
A A A A A E E E E E E E E E EEL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B CD B A F A B C D F G H D H
2222 21111 11111 14 4444444 4444444 44 4444444 444
84
44444
44444444
4 44 4
888
* Used on sumps with dynafocal mounting.
6-3
1
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
3
7
0
1
6
5-
6
Figure 29. INTAKE PIPE ASSEMBLY
6-4
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
OIL SUMP AND INDUCTION SYSTEMCARBURETOR ASSEMBLY
FIG.REF. PART30 NUMBER
1 662242 72394
7727978728LW-13659LW-15986
3 STD-354 STD-14105 STD-1763
DESCRIPTION
GASKET, CarburetorCARBURETOR, Marvel Schebler, MA-4SPA (10-3678-32)CARBURETOR, Marvel Schebler, MA-4SPA (10-4910)CARBURETOR, Marvel Schebler, MA-4SPA (10-5009)CARBURETOR, Marvel Schebler, MA-4SPA (10-5135)CARBURETOR, Marvel Schebler, MA-4SPA (10-5217)WASHER, 5/16 plainNUT, 5/16-18 plainLOCKNUT, 5/16 palnut
N QUANTITY PER ASSEMBLY
A A A A A E E E E E E E E E E EL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L BC D B A F A B C DF G H D H1
1 1 1 111
1 1 11
1
11
1 1
1 1 11
1111 111 1111
444
6-5
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
Figure 30. CARBURETOR ASSEMBLY
6-6
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
OIL SUMP AND INDUCTION SYSTEMPRIMING SYSTEM
FIG.REF. PART31 NUMBER
1 1102*2 LW-12098-1-1703 LW-12098-1-1164 LW-12098-0-1005 LW-16266-25-136 LW-18959-150-25
719107 STD-5538 AN365-632A9 STD-853
10 74225
DESCRIPTION
PLUG, 1/8-27 NPT, AllenTUBE ASSY., Primer cylinders, nos. 1 & 2TUBE ASSY., Primer cylinders, nos. 3 & 4TUBE ASSY., Primer, intermediateCLAMPCLAMP, 1-1/2 I.D. with 1/4 dia. offsetCLAMP, 1-3/4 I.D. with 1/4 dia. offsetSCREW, No. 6-32 x 1/2 lg., rd. hd.NUT, No. 6-32, self-lockingTEE, Union, 1/8 tubeNIPPLE ASSY., Primer
N QUANTITY PER ASSEMBLY
A A AAA E E E E E E E E E EEEL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H D H4
22 22 2222 2 2222 22 2222 2 2222 22 2222 2 2244 44 4444 4 44
4 4 44 4444
44 44 4444 44 44 4
44 44 4444 4 4433 33 3333 3 3344 4 4 4 4 4 44 44
* Assemble in cylinder heads.
6-7
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
3
5
4 -4
Figure 31. PRIMING SYSTEM
6-8
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
SERVICE KIT SECTION
SEAL AND GASKET SETWIDE CYLINDER FLANGE MODELS
Part No. Part Name Qty.
69371-1MS29512-6STD-111STD-2217STD-213STD-294STD-548STD-1006STD-1045STD-20721691-C8313600966059260820611736118361523615316222465321662246831569164693456955169720698277031070455714817197372053720597207572078720917231272829733837381773818740657406874524759067651076940LW-12272
SEAL AND GASKET SETSEALGASKETSEAL, OilSEALGASKET, AnnularSEAL, OilRING, Oil sealGASKET, Annular"O RING"GASKETGASKET, Vacuum pumpGASKET, Fuel pumpGASKET, CarburetorGASKET, Oil suction tube flangeGASKET, Oil pressure housingGASKET, Accessory adapterCONTAINERGASKET, Hydraulic valveGASKET, Magneto adapterGASKET, Exhaust flangeGASKET, CarburetorGASKET, Accessory drive adapterGASKETSPACERGASKET, Accessory pad coverGASKET, Dual accessory drive coverGASKET, Governor spacerSEAL, Shroud tubeGASKETRING, Oil sealGASKET, Intake flangeGASKET, Governor driveGASKETSEAL, OilLOCKPLATE, Cam gearRING, Oil sealRING, Oil sealLOCKPLATELOCKPLATELOCKPLATE, Crankshaft idler gear shaftGASKET, Accessory housingRING, Oil level gage sealRING, Oil level gage sealRING, Oil sealGASKET, Rocker box coverGASKETSEAL, Crankshaft oilLOCKPLATE, Shroud tube
1111121121121111111442114111814421622112211114114
7-1
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
SERVICE KIT SECTION
SEAL AND GASKET SETWIDE CYLINDER FLANGE MODELS
Part No.
69371-1LW-12681LW-12795LW-13353LW-13792LW-14260LW-14995LW-18639LW-18661
Part Name Qty.
SEAL AND GASKET SET (Continued)GASKET, MagnetoGASKETGASKET, Oil sumpSEAL, Crankshaft oilSEAL, Tachometer shaftSPRINGLOCKPLATE, Crankshaft gearSEAL, Shroud tube
12111141
16
7-2
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
SERVICE KIT SECTION
CYLINDER, PISTON AND RING KITWIDE CYLINDER FLANGE MODELS
Part NamePart No. Qty.
76659-A*MS13997-3MS13998-3STD-1411STD-192560009LW-18661LW-137906082861247LW-1180065441LW-11795LW-10077LW-14995LW-12272LW-13445LW-18790703107119571481LW-1647573857 or LW-1232873938LW-1332374989LW-1900175413LW-1241775906STD-1215SSP-2472LW-12892
CYLINDER, PISTON AND RING KITKEY, Valve, exhaustCAP, Valve stemNUT, Plain, 1/4-20SCREW, 1/4-20 x 5/8 long, fill. hd., selKEY, ValveSEAL, Shroud tubeSHAFT, Valve rockerPLUG, Piston pinCOVER, Rocker boxSPRING, Valve, outerSEAT, Valve spring, lowerSPRING, Valve, auxiliarySEAT, Valve springSPRING, Shroud tubeLOCKPLATE, Shroud tubePIN, PistonROCKER ASSY., ValveSEAL, Shroud tubeBOX, Set-upRING, Oil seal, 4-27/32 I.D. x 3/32 diaSEAT, Valve springRING, Oil regulatingVALVE, IntakeSEAT, Valve spring, lower exhaustRING, Piston compressionVALVE, Exhaust (rotator type)PISTONCYLINDER AND HEAD ASSY.GASKET, Rocker box coverBOLTTAGTHRUST BUTTON
self-locking
121162212121211112211111121111212
dia. sect.
* - Kit designated with suffix "A" for engine incorporating heavy piston pin (LW-13445).
7-3
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
SERVICE KIT SECTION
CYLINDER, PISTON AND RING KITWIDE CYLINDER FLANGE MODELS
Part NamePart No. Qty.
77462-A*MS13997-3MS13998-3STD-1215STD-1411STD-192560009LW-18661LW-137906082861247LW-1180065441LW-11795LW-10077LW-14995LW-12272LW-13445LW-18790703107119571481LW-1647573857 or LW-123287393874241LW-13323LW-12416LW-190017541375906SSP-2472LW-12892
CYLINDER, PISTON AND RING KITKEY, Valve, exhaustCAP, Valve stemBOLT, 1/4-20 x 1-1/4 longNUT, Plain, 1/4-20SCREW, 1/4-20 x 5/8 long, fill. hd., self-lockingKEY, Valve, intakeSEAL, Shroud tubeSHAFT, Valve rockerPLUG, Piston pinCOVER, Rocker boxSPRING, Valve, outerSEAT, Valve spring, lower intakeSPRING, Valve, innerSEAT, Valve spring, upper intakeSPRING, Shroud tubeLOCKPLATE, Shroud tubePIN, PistonROCKER ASSY., ValveSEAL, Shroud tubeBOX, Set-upSEAL, Cylinder baseSEAT, Valve spring, upper exhaustRING, Oil regulatingVALVE, IntakeRING, Piston compressionSEAT, Valve spring, lower exhaustCYLINDER ASSY., (Nitrided)VALVE, ExhaustPISTONGASKET, Rocker box coverTAGTHRUST BUTTON
121116221212121111221111121111112
* - Kit part number with suffix "A" uses LW-13445 piston pin (heavy).
7-4
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
NUMERICAL INDEX
PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.
AN365-632AAN365-632AAN-500-416-18AN565B1032H5AN6-13AN6-14AN6-16AN6-32AN6-34AAN777-8DAN816-8AN844-1 ODAN901-8AAN960-616LLW-10077LW-10647LW-10729LW-10828LW-11775LW-11795LW-11800LW-11866LW- 12098-0-100LW-12098-1-116LW-12098-1-170LW-12186LW-12272LW-12408LW-12416LW-12417
LW-12446LW-12545LW-12681LW-12706LW-12712LW-12782LW-12789LW-12795LW-12892LW-1 3039LW-13215LW-13323LW-13353LW-13365LW-13659LW-13775LW-13790LW-13792LW-13793
NutNutScrewSet ScrewBoltBoltBoltBoltBoltElbowNippleElbowGasketWasherSeatDowelLinkSump Assy.PlugSpringSpringNutTube Assy.Tube Assy.Tube Assy.NutLockplateHousing Assy.Cylinder Assy.Cylinder Assy.
Crankshaft Assy.PlugGasketAdapterHousing Assy.Housing Assy.Tube Assy.GasketThrust ButtonBracketOil FilterSeatGasketBraceCarburetorImpeller Assy.ShaftSealStud
4-36-74-31-115-45-45-45-41-152-142-142-142-141-153-51-15-46-13-13-53-51-156-76-76-73-13-52-13-33-3
1-76-14-14-12-12-11-32-143-75-42-143-56-15-46-52-33-71-51-1
LW-13796LW-13813LW-1 3817LW-13884LW-13896LW-13923LW-14021LW-14057LW-14057LW- 14060LW- 14060LW-14068LW-14077LW-14078LW-14260LW-14308LW-14316LW-14319LW-14416LW-14555LW-14735LW-14757LW-14758LW-14759LW-14768LW-14780LW-14793LW-14995LW-15472LW-15571LW-15572LW-15592-5-05LW-15592-8-28LW-15635LW-15636LW-1 5637LW-15638LW-157208LW-157209LW-15970LW-15986LW- 16047LW-16266-25-13LW-16266-25-38LW-16266-25-50LW-163005-2LW-163045-3LW-163045-6LW-16460LW-16475
ShaftCrankcase Assy.Crankcase Assy.BearingPlugBushingShaftClipClipClipClipPinPinPinSealAlternatorAlternatorAlternatorHousing Assy.FlangeGage Assy.Gage Assy.Gage Assy.Gage Assy.Gage Assy.Gage Assy.Gage Assy.SpringFuel PumpStarterStarterClampClampMag. & Harness Assy.MagnetoMag. & Harness Assy.MagnetoKit Assy.Kit Assy.TubeCarburetorBearingClampClampClampMagnetoMagnetoMagnetoStarterSeat
1131 11-1
1-51-113-11-114-1434-14-33-13-13-12-35-15-15-12-16-33-11-31-31-31-31-31-33-52-95-65-63-96-34-14-14-14-14-14-11-36-51-56-72-54-34-14-14-15-63-5
8-1
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
NUMERICAL INDEX (Cont.)
PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.
LW-16591LW- 16711LW-16728LW-16729LW-16730LW-17060LW-17061LW-17063LW-17064LW-17066LW-17067LW-18369LW-18372LW-18379LW-18639LW-18667LW-18790LW-18837LW-18838LW-18959-150-25LW-18959-150-25LW-1 9001LW-31-1.09LW-31 H.75LW-31H.75LW-38.75LW-349305LW-349365-3LW-51360-29LW-51360-37LW-51360-45LW-52305-1LW-M-2375LW-M-2403LW-M-2404LW-M-2415LW-M-2416M-1985-48M-1985-72MS13997-3MS13998-3MS16625-1081MS20822-6MS20823-6DMS29512-06STD-8STD-8STD-8STD-8STD-8STD-8
Mag. & Harness Assy.BearingPipePipePipeCrankshaft Assy.Crankshaft Assy.Crankshaft Assy.Crankshaft Assy.Crankshaft Assy.Crankshaft Assy.Crankcase Assy.Crankcase Assy.Crankcase Assy.LockplatePinRocker Assy.Camshaft Assy.Camshaft Assy.ClampClampValveBoltBoltBoltBoltMagnetoMagnetoMagnetoMagnetoMagnetoKit Assy.PlateHarness Assy.Harness Assy.Harness Assy.Harness Assy.Lead Assy.Lead Assy.KeyCapRingElbowElbowRingWasherWasherWasherWasherWasherWasher
4-11-56-36-36-31-71-71-71-71-71-71-11-11-11-71-93-71-91-94-36-73-55-65-25-42-94-14-14-14-14-14-14-34-34-34-34-34-34-33-53-51-92-53-32-51-152-32-112-132-144-3
STD-8STD-8STD-19STD-33STD-33STD-35STD-35STD-35STD-35STD-35STD-35STD-35STD-35STD-35STD-68STD-68STD-91STD-111STD-160STD-160STD-160STD-160STD-160STD-160STD-160STD- 160STD-294STD-425STD-475STD-475STD-475STD-475STD-475STD-475STD-475STD-514STD-548STD-551STD-553STD-553STD-557STD-596STD-678STD-678STD-684STD-690STD-696STD-696STD-713STD-761
WasherWasherDowelWasherWasherWasherWasherWasherWasherWasherWasherWasherWasherWasherPinPinPlugGasketWasherWasherWasherWasherWasherWasherWasherWasherGasketWasherWasherWasherWasherWasherWasherWasherWasherDowelSealPlugScrewScrewDowelNutWasherWasherNippleWasherWasherWasherPinPin
6-16-31-111-152-91-112-32-52-73-75-25-45-66-55-26-16-16-11-152-32-112-132-144-36-16-32-141-51-112-52-73-74-15-45-61-12-116-14-36-71-11-151-152-93-95-42-114-35-44-1
8-2
PART NO.
STD-783STD-784STD-784STD-798STD-853STD-872STD-872STD-938STD-1006STD-1045STD-1045STD-1065STD-1196STD-1204STD- 1204STD-1211STD-1215STD-1215STD-1215STD-1221STD-1227STD- 1339STD-1339STD-1339STD- 1409STD- 1409STD-1410STD-1410STD-1410STD-1 410STD-1410STD-1410STD-1411STD-1411STD-1411STD-1411STD-1411STD-1411STD-1411STD-1414STD-1414STD-1416STD-1419STD-1419STD-1420STD-1420STD-1433STD-1623STD-1727STD-1727
0-320-A and E SERIES PARTS CATALOGLycoming LOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
NUMERICAL INDEX (Cont.)
PART NAME PAGE NO. PART NO. PART NAME PAGE NO.
Plug 2-7 STD-1727 Washer 5-4Plug 2-1 STD-1763 Locknut 6-5Plug 2-14 STD-1774 Pin 2-7Dowel 1-11 STD-1774 Pin 2-11Tee 6-7 STD-1836 Bolt 5-2Nut 1-15 STD-1837 Bolt 5-2Nut 5-4 STD-1838 Bolt 2-5Dowel 2-11 STD-1838 Bolt 5-2Ring 2-1 STD-1838 Bolt 5-4Gasket 1-5 STD-1851 Bolt 5-2Gasket 6-1 STD-1856 Screw 2-14Dowel 1-7 STD-1858 Bolt 5-4Hose 6-3 STD-1872 Insert 3-3Bolt 2-3 STD-1874 Screw 4-3Bolt 6-1 STD-1882 Screw 2-9Plug 1-7 STD-1925 Screw 3-7Bolt 2-11 STD-1930 Hose 2-5Screw 4-3 STD-2072 Ring 2-11Bolt 6-3 STD-2084 Bolt 1-15Ring 2-7 STD-2090 Nut 3-7Washer 6-1 STD-2156 Bolt 5-6Plug 1-1 STD-2167 Screw 1-13Plug 2-3 STD-2168 Nut 1-13Plug 2-11 STD-2180 Hose 3-9Nut 1-15 STD-2213 Screw 1-7Nut 6-1 STD-2217 Seal 2-11Nut 1-11 10-720632-48 Lead Assy. 4-3Nut 2-7 25C-9 Stud 3-3Nut 3-7 25C-10 Stud 2-14Nut 4-1 25C-11 Stud 2-1Nut 5-6 25C-22 Stud 2-1Nut 6-5 25C-31 Stud 2-1Nut 1-15 31C-12 Stud 1-1Nut 2-11 31C-12 Stud 2-1Nut 2-13 31C-12 Stud 3-3Nut 2-14 31C-13 Stud 1-1Nut 3-5 31C-13 Stud 2-1Nut 4-3 31C-14 Stud 1-1Nut 6-1 31C-14 Stud 2-7Bolt 1-15 31C-15 Stud 6-1Bolt 2-3 31C-16 Stud 2-7Bolt 1-15 31C-19 Stud 2-1Bolt 1-15 31CD-17 Stud 2-1Bolt 6-1 38-13 Stud 1-1Nut 2-3 38-22 Stud 1-1Nut 5-2 38D-17 Stud 1-1Bolt 6-1 50-15 Stud 1-1Insert 1-1 383-B Nut 3-7Washer 4-1 1028-B Ball 1-5Washer 5-2 1102 Plug 1-1
8-3
TEXTRON Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
NUMERICAL INDEX (Cont.)
PART NO.
11021102110211021182-B31182-B71182-F31182-Q51182-U4831360009600286009660430607466080360820608286088260886610846109861155611636117361174611836124761259612606126261358613766137761378613816140061400615106154461665622246241562417627326281562817629226500765098
PART NAME
PlugPlugPlugPlugSpark PlugSpark PlugSpark PlugSpark PlugSpark PlugGasketKeyGuideGasketCoverImpellerStrapGasketPlugGearBeltSpringAdapter Assy.GearGearGasketShaftGasketCoverFlangeFlangeStudPlugConnectionConnectionScreenTube Assy.StudStudPlugPlungerGearGasketPlungerPlugCapHousingScreen Assy.SealRetainerCover
PAGE NO.
2-12-73-36-74-14-14-14-14-12-133-53-32-92-132-31-156-13-11-75-11-52-111-74-12-142-32-113-73-73-72-116-16-16-16-16-12-16-11-71-134-14-12-142-142-142-142-143-51-12-9
PART NO.
6532165441661456622466610667966831568317685936875968760687616886768974689876910669316693186931969373694366951069551696036967569720697226972469725697306973169742697966994270310703477041970455704847102371140714817159671596716107161171620716237179371910
PART NAME
GasketSeatDowelGasketBushingInsertGasketShaftgearSpacerTube Assy.Tube Assy.Tube Assy.Support Assy.HousingTubeCoverGearShaftGear Assy.BearingSpringHousingGasketHoseConnectorGasketStudStudAdapter Assy.Gear Assy.BushingCover Assy.DowelStudSealDual Drive Assy.BracketGasketScreenBraceFittingRingWasherWasherHookRetainerBoltWasherGasketClamp
PAGE NO.
3-73-52-116-53-33-32-72-72-133-93-93-91-72-143-52-72-112-112-113-12-142-142-76-32-142-112-112-112-112-112-112-111-12-113-52-115-21-116-12-112-143-72-72-113-93-92-142-146-34-3
8-4
Lycoming0-320-A and E SERIES PARTS CATALOG
LOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
NUMERICAL INDEX (Cont.)
PART NO.
7191072026720537205372057720587205972063720647206572066720677207572091721587222072312723517236272378723787239472413724957256672569728777297073231732497325073251732527331773346733837338373411734127341373414738187385773938740587406574068740707408474225
PART NAME
ClampBeltGasketGasketSeatSeatGasketBushingBushingBushingBushingBushingSealRingBushingGasketRingScrewSump Assy.CoverCoverCarburetorFittingGearGearBaffle Assy.BodyGear Assy.Gear Assy.WasherWasherWasherWasherTubeFlangeLockplateLockplateRod Assy.Rod Assy.Rod Assy.Rod Assy.GasketRingValvePlugRingRingElbowPipeNipple Assy.
PAGE NO.
6-75-11-112-73-33-31-31-71-71-71-71-71-51-51-11-31-34-36-11-112-76-52-144-11-73-91-52-112-111-111-111-111-112-16-35-25-43-73-73-73-72-13-13-51-111-31-32-56-36-7
PART NO.
7423074241743237432474325743607441474636746377477174887749897499675072750897511875153751547516575166751677538075413755457562675730757357573675739757617576775906759447596576028761037610476107761107611176118761197612176210762207649676510765297653476628
PART NAME
GuideRingStrutBracketLinkFlangeSupport Assy.Rocker Assy.BushingSpacerSpacerRingGear Assy.Gear Assy.PistonGasketAdapter Assy.StudClipTube Assy.Tube Assy.LinkPistonAdapter Assy.PlugTube Assy.TubeTubeNippleExtensionTubeGasketValve Assy.ClampLinkHousing Assy.Housing Assy.Housing Assy.Housing Assy.Housing Assy.SpacerShieldShaft Assy.StarterStudAlternatorGasketPlugShimSupport Assy.
PAGE NO.
3-33-15-45-45-46-31-73-73-72-133-73-11-131-133-13-72-71-12-52-52-55-43-12-72-12-51-31-32-51-31-33-72-144-15-22-12-12-12-12-11-92-11-95-61-155-12-141-55-41-7
8-5
Lycoming 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: Wide Cylinder Flange Crankcase Model Engines
NUMERICAL INDEX (Cont.)
PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.
767347673476899769067690876923-48S70-6376923-48S90-6376923-72S90-63769277694476961772797730977527776117774377745
StrapZip StrapSupport Assy.BracketStrutLead Assy.Lead Assy.Lead Assy.Housing Assy.Support Assy.ClampCarburetorBushingExtensionGasketHarness Assy.Harness Assy.
4-14-31-75-45-44-34-34-32-11-74-16-51-131-33-74-14-1
77808778527785377872778747787578027780307829078308785247852878589786267872878914
Valve Assy.Filter Base Assy.Filter Hsg. Assy.BushingGear Assy.GearBoltRod Assy.Plunger Assy.AlternatorSocketBody Assy.PlugTube Assy.CarburetorConnection
1-52-142-141-111-111-113-13-13-55-13-52-31-111-36-56-1
8-6
IntentionallyLeft
Blank