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