Fuel System; Changing The Fuel Filter; Fuel Pump; Inlet Fuel Filter - Westerbeke 3.5 SBCG Operator's Manual

FUEL SYSTEM
GASOLINE
Use only unleaded gasoline with an octane rating of 89 or
higher. Higher octane is recommended. The use oflower
octane gasoline will affect engine performance adversely ..
Ethanol blend must not exceed EIO.
NOTE:
The generator compartment should have a gasoline
fume detector/alarm properly installed and working.
GASOLINE/WATER SEPARATOR AND
A primary fuel filter of the water separating ,
type
must
be installed between the fuel tank·
and the engine to remove water and otqer
contaminant's from the fuel before they
can
be carried to the fuel system on the engine.
Most installers include a
type
of filtei/water. ·
separator with the installation package as
they are aware of the problems that
contaminant's in the fuel can cause.
These gasoline filters must have metal bowls ·
(not "s~-through") to meet U.S. Coats Guard
FUEL
requirements. The metal ~owls have drain .-~~=C~ER
valves to use .\¥hen
~~ecki~g f~r
water and · ·
impurities. This ffiter rating must be
fo
·microns
or
smaller.
FUEL PUMP
Periodically
c~l).the
fuel conrieetions to and out of the pump
and
~-sure
tll.at 'no leakage is present and that the fittings
are tight and
~lire.
The engfue mounted fuel pump is
maintenance
free.
IN~T
FUEL FILTER
FUEL
MODULE
To ensure clean fuel into the fuel lift pump, there is a small
in-line fuel filter connected to the fuel module. This filter
should be replaced every 250 hours of operation.
1. Shut .off the
fue~
supely to the generator. Disconnect the
fuel supply'lint}to the'inle.t . . filter and unscrew -the filter
from the· pump inlet. Take care to catch any fuel that may
be present.
2. Thread on the replacement inlet filter and connect the
fuel supply line. Use care when connecting and
tightening the fuel supply line so as not to distort the
inlet filter.
3. Tum on the fuel supply to the generator and start the
generator. Ensure that there are no leaks.
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 Filter Element
1. ShtJ.t_the fuel sun_p_ly to the generator
~ff.
2. Ensure system fuel pressure is at zero. Bleed off the
system pressure using a Schrader valve located on the
injector throttle body. Use extreme care as pressure maybe
as high as 45 PSI or more. Use towels to wrap the valve
· and catch or subdue any fuel spray.
3. Unscrew the fuel bowl from the housing and pull the
filter element down and off. Use care to catch any fuel
that may be present.
4. Replace
the
sealing "0" ring. Install the new· filter element
and thread on the fuel bowl then tighten by hand.
5. Open the fuel supply to the generator and start the unit.
Ensur.e that there are no leaks .. _
-WJlRIIIN_I
t':~-1:,,_, .ispre$f#lit inlhe h~ntiaildlines~
t~tt~.··~xff,eme · • . .
to
pre~n,.spifl.age
.
,".
;
-
..
'
~.
.
.
·.ENGINE
FUEL
FILTER
AWARNING:
Shut valve at the tank when
servicing the fuel system. Take care in catching any fuel ·
that may spill. DO NOT allow any smoking, open flames
or other sources of fire near the tu_el system when
servicing. Ensut~~ proper ventilation exists when
servicing the fuel system.
Engines
&
Generators
15 .