Briggs and Stratton Engine Disassembly

Transportation Technology: TTJ1OModule: Briggs & Stratton Engine

Student Name: ______________________________

Student Number: ____________________________

2HP Briggs & Stratton EngineDisassembly

Model: _____________________

Type: ______________________

Number: ____________________


2HP Briggs & Stratton Model 60102Disassembly Instructions:

1. Drain the engine oil from the crankcase using a 7/16ths or 11mm wrench.

2. Remove the spark plug from the cylinder head using a spark plug socket and 3/8ths ratchet.

3. Remove the air filter housing from the carburetor using a large screw driver.

4. Remove the pull starter/cover using a 7/16ths or 11mm wrench or a Phillips screw driver.

STOP!Have your teacher inspect your work.

Teachers Initials: __________


5. Remove the governor air-vane and bracket from the engine. Carefully disconnect the governor linkage from the air-vane.

Do not bend the governor linkage!

Remove the governor linkage and spring from the carburetor

Do not stretch the governor spring!

6. (a) Remove the gas tank from carburetor using a 7/16ths or 11mm wrench or socket or a screw driver.

(b) Remove the carburetor from the engine block using a 7/16ths or 11mm wrench or socket or a screw driver.

7. Remove the muffler using a hammer and punch. Release locking ring from engine block, then unscrew the muffler.

STOPHave your teacher inspect your work.



8. Remove the armature from the engine block using a screw driver or socket wrench.

Note the position of the coil in relationship to the flywheel!

9. Insert the flywheel holder into the flywheel. Using the starter clutch wrench, loosen the starter clutch by turning the clutch counter clockwise Be sure to have someone help you by holding the engine assembly secure.

If the starter clutch does not loosen, then use a punch and hammer, and strike down on the “ear” of the starter clutch in a counter clockwise direction.

Remove the starter clutch and flywheel.

Do not loose the alignment key!

10.Remove the cylinder head bolts using a ½" combination wrench or socket wrench. Remove the cylinder head and gasket. Inspect the cylinder head for any damage.

Be careful not to tear the cylinder head gasket!

11.Remove the breather cover and gasket using a 11/32 wrench or screwdriver.




12.Remove the intake and exhaust valves using a valve spring compressor.

Insert one end of the compressor on the valve spring retainer and the other on the case, compress the valve spring and remove the retainer.

Release valve spring compressor and remove the valve and valve spring.

Do not mix up the 2 valve springs!

13.Remove the crankcase cover with a 7/16ths or 11mm wrench or socket or a #3 Phillips screwdriver. If equipped with a gasket carefully remove it. The cover has to be removed evenly due to the 2 location pins that are installed on the crankcase.




14.Carefully remove the camshaft, noting the alignment marks with the crankshaft. The 2 dots must line up during installation.

Remove the 2 cam followers.

15.Rotate the crankshaft so that the piston is at the bottom of the cylinder.

Remove the 2 bolts holding the connecting rod cap and oil dipper with a 7/16ths or 11mm wrench or socket.

Remove the connecting rod cap noting the assembly marks on the connecting rod and connecting rod cap.

Rotate the crankshaft to place the piston at the top of the cylinder, then push the piston and connecting rod assembly out of the top of the cylinder.

Reassemble the connecting rod and cap in the correct position. Tighten the bolts hand tight.

Remove the crankshaft from the crankcase.




Engine Fasteners:

1. Gas Tank to Carburetor. 2 screws #10 x 32 NF

2. Air Filter 1 screw #10 x 32NF

3. Carburetor 2 screws ¼" x 20 NC

4. Pull Starter Cover 3 screws ¼" x 20 NC

5. Starter Clutch 2 screws #10

6. Breather Cover 2 screws #10 x 28 NF

7. Cylinder Head 8 bolts 5/16 x 18 NC

8. Ignition Coil 2 bolts #8 x 32 NF / #10 x 32 NF

9. Crankcase Cover 6 bolts ¼" x 20 NC

10. Connecting Rod 2 bolts ¼" x 28 NF

Documents

Briggs and Stratton Engine Disassembly