Westerbeke 50 User Manual

Checking The Back Pressure
1. Exhaust pipe flange
2. Exhaust line
3. Transparent plastic hose,
partly filled with water.
Measurement "A" may not exceed 39"
for normally asperated engines and
19.5" for turbo-charged engines.
WATER CONNECTIONS
Seacocks and strainers should be of the full flow type at least
one size greater than the inlet thread of the sea water pump. The
strainer should be of the type which may be withdrawn for cleaning
while the vessel is at sea.
Water lines can be copper tubing or wire-wound, reinforced rubber
hose. In any case, use a section of flexible hose that will not
collapse under suction, between the hull inlet and engine and between
the outlet and the exhaust system. This takes up vibration and per-
mits the engine to be moved slightly when it is being re-a1igned. Do
not use street elbows in suction piping. All pipe and fittings should
be of bronze. Use sealing compound at all connections to prevent air
leaks. The neoprene impeller in the sea (raw) water pump should never
be run dry.
FUEL TANK AND FILTERS
Fuel tanks may be of fiberglas, monel, aluminum, plain steel or
terne plate. If made of fiberglas, be certain that the interior is
gel coated to prevent fibers from contaminating the fuel system.
Copper or galvanized fuel tanks should not be used. It is not
necessary to mount the tank above the eng ine level as the fuel lift
pump provided will raise the fuel from the tank. The amount of lift
should be kept minimum (6 feet being maximum). If a tank is already
installed above the engine level, it can be utilized in this position.
Great care should be taken to ensure that the fuel system is correctly
installed so that air10cks are eliminated and precautions taken
against dirt and water entering the fuel.
A primary fuel filter of the water collecting type should be
installed between the fuel tank and the fuel lift pump. A recommended
type is available from the list of accessor ies. The secondary fuel
filter is fitted on the engine between the fuel lift pump and the
injection pump and has a replaceable element.
As the fuel lift pump has a capacity in excess of that required by
the injection pump, the overflow is piped to the fuel tank and should
be connected to the top of the tank or as near the top as possible.
To insure satisfactory operation, a diesel engine must have a
dependable supply of clean diesel fuel. For this reason, cleanliness
and care are especially important at the time when the fuel tank is
installed, because dirt left anywhere in the fuel lines or tank will
certainly cause fouling of the injector nozzles when the engine is
started for the first time.
FUEL PIPING
We recommend copper tubing together with suitable fittings, both
10

Westerbeke 50 Specifications

General

Brand	Westerbeke
Model	50
Category	Engine
Language	English