Engine Information
& Engine Components and Systems
Basic Engine Info
Shaft Horsepower - 340 shp W/Turbo Four Stroke Eight Cylinders Right Hand Rotation Starboard Shaft Rotation - Clockwise Port Shaft Rotation - Counter Clockwise
Engine Model
VT-903M
V - Block Configuration T - Turbo Charged 903 - Cubic-inch displacement M - Marine Version
Fluids 1. Engine Oil -
15w40 2. Jacket Water - Antifreeze / Green stuff 3. Raw Water / Cooling Water-
- Salt water / Fresh water {Lakes} 4. Fuel - #2 Diesel
– Fuel Capacity at 100% - 486.8 gallons– Fuel Capacity at 95% - 463.0 gallons
Temps & PSI’s
Tachometer: 700 - 725 rpm at idle
2300 rpm at cruising Engine Oil PSI: 10 - 30 at idle
45 - 65 at cruising Marine Gear PSI: 25 - 75 not engaged
190 - 220 engaged Water Temp: 165 - 195 degrees Cruising
MARINE GEAR OIL PRESSURE
190-220 psi
ENGINE LUBE OILPRESSURE
40-65
JACKET WATERTEMPERATURE165-195 Degrees
RPM GAUGES2575 - 2700
Marine Gear MG-509 2:1 ratio Come Home Device {Starboard Engine Only} Fluid: 9250 = {40wt oil} M/G Oil Capacity: 10 qts in M/G / 11 qts total
Marine Gear
INDICATING SIGNS– Cruising PSI?
WHEN YOU GO TO USE IT, ITS NOT THERE.
- Low Oil Pressure
Main Propulsion Cooling System
1} Sea Chest 2} Sea Chest Vent 3} Duplex Strainer 4} Raw Water Pump 5} Heat Exchanger 6} M/G Oil Cooler 7} Deicing Valves and Lines
Main Propulsion Cooling System
8} Exhaust Riser 9} Exhaust Flexible Flange 10} Exhaust Pipe 11} Muffler 12} Exhaust Pipe End
Sea Chest Vent Valve
Sea Chest
STBD Eng.R/W Supply valve
Port Engine Raw Water Supply Valve
Bilge Pump
De-Icing ValveSea chest Vent Ck Vlv
Duplex Strainer
Port Engine
Raw Water Flow
Raw Water Flow
Flowto
Marine GearCooler
R/W Pump
Heat Exchanger
Marine Gear Oil Cooler
Raw Water Flow
Hot Start
Port Exhaust Riser
STBD Exhaust Riser
From M/G Cooler
Port Exhaust Riser
STBD Exhau
st Rise
r
Exhaust
Raw Water Flow
Raw Water flow
Exhaust gases
Muffler
Lazarette
Jacket Water Cooling and Heating System
1} Jacket Water Pump 2} Heat Exchanger 3} Pilothouse Defroster Supply Line 4} Pilothouse Defroster Return Line 5} Passenger Compartment Heater Supply Line 6} Passenger Compartment Heater Return Line
J/W Cooling and Heating System Cont.
7} Lube Oil Cooler 8} Hot Start
Antifreeze Capacity 12 Gallons
High Water Temp Gauge
Heat Exchanger
Jacket Water Pump
Defroster Htr Supply
Defroster Htr Return
Defroster HeaterSupply
DefrosterHeaterReturn
Fwd Compt. Pass Htr Supply
Fwd Compt. Pass. Htr. Return
J/W lines from Port Engine
Fwd Compt. Heater
Hot Start
Hot Start
HIGH WATER TEMPERATURE
INDICATING SIGNS
AMBER LIGHT
ALARM BELL
SOUNDS
GAUGE READS
ABOVE 205
--CRUSING J/W TEMP?
Lubrication Oil System
1} Lube Oil Pump 2} Lube Oil Cooler 3} Lube Oil Filter
Lube Oil Capacity 5 gallons in sump / Total of 6 gallons due to
filter and lines
LUBRICATING SYSTEM
INDICATING SIGNS
RED LIGHT
BELL RINGING
Pressure Gauge
{0 – 30 Disabling
Casualty}
- CRUSING PSI?
Lube Oil Psi Gauge
Lube Oil supply to filter
Lube Oil Return to Engine
L/O Filter
Lube Oil CoolerLube Oil Dipstick
Marine Gear(Reduction Gear)
1} Dipstick 2} Linkage 3} M/G Oil Pump 4} “Come-home” Access Plugs 5} Oil Strainer 6} Selector Valve 7} Shaft 8} Oil Breather Cap 9} Sump Drain Plug
Marine Gear Oil Psi Gauge
Rpm Gauges
Spider Gear
Rear of Engine “Flywheel”
Larry Curly Moe
The Three Marine Gears
M/G Lube Oil pump
Selector Valve
M/G Lube Oil Strainer
M/G Oil Breather Cap
Dipstick
Selector Valve
M/G Oil Strainer
M/G Oil Pump
Come - Home Access P
lug
Come - Home Access P
lug
Steering System 1} Steering Wheel 2} Helm Pump 3} Quick release Push pins 4} Tie Rod Bar 5} Rudder Arms 6} Rudder Post 7} Rudder Blade 8} Rudder Stop 9} Emergency Tiller
Helm pump
Hydraulic Hose
Bkhd 6
Hydraulic Hose
Bkhd 10
STBD side
Hydraulic Ram
Tie Rod Bar
Rudder Stop
Rudder StopRudder Arm
Rudder Post
Quick Release pin
Emergency Tiller
Fuel System
1} Fuel Tanks 2} Suction Valves 3} Fuel Filters 4} Fuel Return Check Valves 5} Stripping Valve 6} Priming and Stripping Pump 7} Hand Pump check valves 8} Fuel Sightglass 9} Fuel Pump
Fuel Tanks
Fuel Oil Hand priming and Stripping Pump
Check Valve Check Valve
Stripping Valve
Racor Fuel Oil Filter Housing
Fuel Sightglass
Fuel Pump
Throttle Cable to Fuel Pump
Fuel Oil Return Ck ValveRestricted orphus
Fuel Oil Cooler
Fire Main System 1} Sea Chest 2} Simplex Strainer 3} Power Take-off {PTO} 4} Fire Pump 5} Power Take-off Handle 6} Fire Main Riser 7} Tri-Gate 8} Fire Main Pressure Gauge
Fire Main System
The pump is rated to deliver 250 gallons per minute at 80 - 100 psi {produced by 1000 main engine RPM.}
Sea Chest
Fire Pump RawWater Supply Valve
Fire Pump
Fire Main Strainer
Suction
Discharge
To Tri-
gate
PTO Handle
PTO
PTO Handle
Fire MainPressure
Gauge
Fixed Fire Extinguishing System
1} Halon 1301 Bottle 2} Thermal Sensors 3} Discharge Nozzle 4} Fuel Shut-off Cylinder
Halon Bottle
Halon Piping to E.R.
Thermal Sensor
Thermal Sensor
Halon Discharge Nozzle
Halon Piping
Halon Shut-down Cylinder
Halon Shutdown Cylinder
Fuel Sightglass
Review
What is the capacity of oil, in gallons, in the sump of a VT903M?
5 gallons
{6 gallons total oil is in the lines and Filter}
Review
What color lights are on the console?
Red / Amber {Yellow}
What is the Lube Oil Pressure at Cruising?
40-65 psi
Review
What is the capacity of the engine Jacket water system?
12 gallons
What cools the Jacket Water?
Raw Water
What is the fuel capacity of the 41’ UTB at 95%?
463.0 gallons
Review At what temperature will the engine room
thermal sensors activate the alarm?
190 degrees
What is the Jacket Water temperature at Cruising?
165-195 degrees