Quantcast MALFUNCTION 9: Fuel injector tube high-pressure fuel leakage.

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TM 9-2815-220-24
FUEL SYSTEM ABNORMAL CONDITIONS
0020 00
MALFUNCTION 8: (Continued)
Fuel injector nozzle defective.
PROBABLE CAUSE
CORRECTIVE ACTION
b. Fuel injector nozzle valve stuck closed or
(1)
Bench test injector nozzle (WP 0114, Fuel
orifice plugged.
Injector Nozzle Replace/Repair).
(2)
Repair or replace defective fuel injector
nozzle and holder assembly (WP 0114, Fuel
Injector Nozzle Replace/Repair).
(3)
If defective fuel injector nozzle is found, the
fuel injection pump must be tested for
damage. Replace defective fuel injection
pump (WP 0115, Fuel Injection Pump
Assembly Replacement).
PROBABLE CAUSE
CORRECTIVE ACTION
c. Fuel injector nozzle holder spring failed
(1)
Locate faulty nozzle (as described earlier in
(result of improper installation of nozzle).
this work package).
(2)
Repair or replace fuel injector nozzle and
holder assembly (WP 0114, Fuel Injector
Nozzle Replace/Repair).
d. Fuel leakage at fuel injector nozzle body.
(1)
Locate faulty fuel injector nozzle.
(2)
Repair or replace fuel injector nozzle and
holder assembly (WP 0114, Fuel Injector
Nozzle Replace/Repair).
MALFUNCTION 9:
Fuel injector tube high-pressure fuel leakage.
PROBABLE CAUSE
CORRECTIVE ACTION
a. Fitting loose, tubing cracked or broken.
(1)
Tighten fitting nut.
(2)
Inspect tubing sleeve.
(3)
Replace defective tube (WP 0113, Fuel
Injection Tube Replacement).
(1)
Tighten loose clamps, replace damaged
b. Fuel injector tube clamps (loose or missing
clamps and install missing clamps
clamps allow tube vibration resulting in fuel
(WP 0113, Fuel Injection Tube
leaks).
Replacement).
WP 0020 00-11

 


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