Technical data

20B TWO MARINE DIESEL SYSTEM SPECIFICATIONS
FUEL SYSTEM
General
Fuel
Injector Pump
Engine Timing
(spill timing)
Injector Pressure
Nozzle
Lift Pump
PN 037818
Air cleaner
Air Flow
(engine combustion)
COOLING SYSTEM
General
Operating Temperature
Fresh Water Pump
PN 037015
Raw Water Pump
PN 033636
Raw Water Flow, at 3600 rpm
(measured before discharging
into exhaust
elbow)
System Capacity (fresh water)·
LUBRICATION SYSTEM
General
Westerbeke Engines
Open flow - totally self-bleeding, manual priming.
No.2 Diesel (cetane # 45 or better).
In-line plunger type (Bosch type).
19° ±1° BTDC
Static
1991 psi (140 kg/cm2)
Throttle type.
12-volt
DC; lift capacity 5 ft (1.5 m)
Plastic screen type - cleanable.
40.6 cfm (1.1 cmm)
Fresh water-cooled block,
thermostatically-controlled
with heat exchanger.
170 - 190° F (77 - 88° C)
Centrifugal type, metal impeller, belt-driven.
Positive displacement, rubber
impeller,
mechanically-driven.
11.1 U.S. gpm (42 Ipm) approximate.
2.9 qts (2.7 liters)
Pressure type by Trochoid pump,
gear-driven, with
external pressure relief valve.
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