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FUEL SYSTEM
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FUEL SYSTEM COMPONENTS
Incoming fuel (from the owner installed
Gasoline Water
Separator/Filter)
is pumped thru the
Inlet Fuel Filter
into the
Fuel Module
by the
Electric Fuel Pump.
The fuel is cooled
as it circulates through the
Fuel Module
and then is pumped by
the
Electric Fuel Pump
to
the
High Pressure Pump Module
and to the
Secondary Fuel Filter.
The fuel passes to the
Fuel
Rail
and is delivered (under pressure) to the
Fuel Injectors.
HIGH PRESSURE
PUMP MODULE
INCOMING FUEL
GASOLINE/WATER SEPARATOR AND FILTER
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.
Most installers include a type of filter/water separator with
the generator installation package as they are aware of the
problems that contaminants in the fuel can cause.
These gasoline filters must have metal bowls (not see-
through) to meet U.S. Coast Guard requirements. The metal
bowls have drain valves to use when checking the water and
contaminants.
·
FUEL PUMP
OWNER INSTALLED
FUEL WATER
SEPARATOR
PN.049602
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 engine mounted fuel pump
is maintenance free.
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SCHRADER VALVE
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FUEL RAIL
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FUEL FILTER
ENGINE FUEL FILTER
FUEL
IOILTER
Periodically check the fuel connections and the bowl for
leakage. R'.eplace the filter element after the first 50 hours
then follow the
MAINTENANCE SCHEDULE.
Changing the Engine Mounted Filter Element
1. Shut the fuel supply to the generator off.
2. Bleed the fuel system to reduce the fuel pressure to zero.
Refer to
BLEEDING THE FUEL SYSTEM.
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 two sealing "0" rings. 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.
Ensure that there are no leaks.
6. Bleed the fuel system again to remove trapped air from
the system. Refer to
BLEEDING THE FUEL SYSTEM.
BLEEDING THE FUEL SYSTEM
The engine's fuel system should be bled of air at the initial
commissioning of the unit, each time the fuel system is
serviced and once a season to ensure any air that may have
accumulated in the system is removed. Bleeding instructions
are found in the model's SERVICE MANUAL.
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