
Engine Maintenance
106
3. Lubricate the top inside edge of the filter bowl
with oil.
4. Lubricate the O-ring in the top of the filter
element with oil.
5. Place the filter element in the filter head with
the tabs (and the arrows) on the filter element
aligned with the slots (and the arrows) in the
filter bowl. Make sure that filter element is
fully seated in the filter bowl.
6. Install and tighten the filter bowl about 1/4
turn until you hear and/or feel it click.
NOTE: Do not fill the filter bowl with fuel
before installing it.
7. Loosen the bleed screw on the filter head
about one turn.
8. Turn the unit on and use the Output Test Mode
to energize the Run Relay, which energizes the
electric fuel pump. Refer to the appropriate
Diagnostic Manual for specific information
about the Service Test Mode.
9. Run the electric fuel pump until air bubbles
are no longer visible in the fuel coming out of
the bleed screw.
10. Tighten the bleed screw and check to make
sure there are no leaks.
11. Exit the Output Test Mode to de-energize the
the Run Relay and electric fuel pump.
12. Start the engine and observe the engine run for
a few minutes. If the engine fails to start, or
starts but stops in a few minutes, repeat the
procedure steps 7 through 12.
Electric Fuel Pump
The electric fuel pump should be mounted behind
the fuel tank to protect it from road debris. The
electric fuel pump should be located far enough
back to allow fuel filter bowl removal and service.
Operation
The electric fuel pump must be mounted next to
the fuel tank. This pump is designed to push fuel
rather than pull fuel.
Make sure the CHFP/black wire completes a good
ground with the battery. Check the voltage at the
8DF/red wire in the harness. The pump will not
operate at less than 9 Vdc. The pump is self
priming as long as it is not higher than 30 in. (762
mm) from the fuel in the fuel tank.
Maintenance
The fuel pump filter should be cleaned whenever
the oil is changed. The filter and gasket are
replaceable but the pump cannot be repaired. It
must be replaced if it is defective.
Disassembly
1. Unscrew and remove the fuel filter bowl.
2. Unscrew the fuel filter.
3. Wash the fuel filter in cleaning solvent and
blow out the dirt and cleaning solvent with
compressed air.
4. Clean the fuel filter bowl.
5. Check the fuel filter bowl gasket and replace if
necessary.
Assembly
1. Screw the fuel filter back into the pump
housing (finger tight).
2. Place the fuel filter bowl gasket in place and
hand tighten (or 100 in-lb [11.3 N•m]) the fuel
filter bowl.
1.
Fuel Inlet
2.
Fuel Filter
3.
Fuel Filter Bowl
4.
Fuel Filter Bowl Gasket
Figure 169: Electric Fuel Pump
ARA2000
1
2
4
3
AMA704