FUEL SYSTEM ABNORMAL CONDITIONS
MALFUNCTION 6: (Continued)
Fuel injection pump deficiencies.
g. (Continued) Fuel control stuck in "no-fuel" (6) If engine fails to start, replace fuel injection
pump (WP 0115, Fuel Injection Pump
position (result of improper preservative oil
during long term storage).
h. Fuel injection pump drive coupling failure
(1) Check fuel injection pump rotation as
(pump not rotating).
Remove top deck, engine rear
cooling fan vane and rear fan.
Fuel injection pump shaft is
Drive coupling is
Fuel injection pump shaft
Fuel injection pump
and/or coupling do not rotate.
coupling failed or is loose
on pump shaft.
h. (Continued) Fuel injection pump, drive
(2) Replace fuel injection pump drive coupling
coupling failure (pump not rotating).
(WP 0116, Coupling, Fuel Injection Pump
i. Fuel injection pump timing improper.
(1) Check timing (WP 0036, Injection Pump
j. Fuel injection pump internal failure.
(1) Replace fuel injection pump (WP 0115,
Fuel Injection Pump Assembly
Engine fuel supply pump defective.
(1) Check fuel pressure as follows:
a. Fuel pump failure (insufficient fuel output
due to defective regulating valve, internal
pump wear or shaft seal leak causing fuel
leakage into engine oil).
WP 0020 00-8