Fuel System - Westerbeke 5.5 EGCD Operator's Manual

FUEL SYSTEM.
DIESEL FUEL
Use No. 2-D (SAE J313) diesel that has a Cetane rating of
#45 or higher grade of giesel according
to
AS1M 0975.
(DO Nar add any alcohol based additives.
FUEL FILTERS
The fuel injection pump and the fuel injectors are precisely
manufactured and they must receive clean diesel fuel, free
from water and dirt. To ensure this flow of clean fuel, the fuel
must pass through at least two fuel filters, a fuel water
separator and the engine's spin-on fuel filter. Visually inspect,
clean, and change these filters according to the maintenance
schedule in this manual.
FUEL WATER SEPARATOR
A primary fuel filter of the water separating type must be
installed between the fuel tank and the engine to remove
water and other contaminants from the fuel before they can
be carried to the fuel system on the engine.
The owner/operator is responsible for making certain the
fuel reaching the engine's injection equipment is free of
impurities. This process is accomplished
by
installing and
maintaining a proper fuel filter/water separator between the
fuel tank and the generator/engine. Westerbeke recommends
a 10 micron filter be used.
FUEL INJECTION PUMP
The fuel injection
pump
is the most important component
of the diesel engine, requiring the utmost caution in handling.
The fuel injection pump has been thoroughly bench-tested
and the owner/operator is cautioned not to attempt to service
it. If it requires servicing, remove it and take it to an
authorized fuel injection pump service facility. Do not
attempt to disassembly and repair it.
FUEL
UFT PUMP
Periodically check the fuel connections to and out of the pump
and make sure that no leakage is present and that the fittings
are tight and secure. The DC ground connection at one of the
pump's mounting bolts should be clean and well secured by
the mounting bolt to ensure proper pump operation.
When energized thru the
preheat circuit,
the fuel lift pump
will
purge air from the fuel system and provide a continuous flow
of fuel as the engine is running.
INLET FUEL FILTER
To ensure clean fuel into the fuel lift pump, there is a small
in-line fuel filter connected to the fuel lift pump elbow. This
filter should be replaced every 250 hours of operation.
ENGINE FUEL FILTER
Periodically check the fuel connections and the bowl for
leakage. Replace the filter element after the first 50 hours
then follow the
MAINTENANCE SCHEDULE.
Changing/cleaning the filter element
1. Shut off the fuel supply.
2. Unscrew the retainer ring that holds the filter bowl to the
housing and allow the bowl to come away from the
housing,
3. Remove and replace
the
filter element and clean
the
bowl.
4. Replace the sealing
"0"
ring and reassemble the bowl
to the housing. Thread the retainer ring on carefully
so as not to cross thread. When retainer contacts the
"0" ring, tighten 114 - 1/2
turns
by hand. Open the-fuel
supply aqd run the engine to inspect for leaks. ·
FUEL
FILTER
LIGHTLY WIPE
WITH CLEAN FUEL
Engines.~
GeQerators
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