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 TM 9-2815-220-24
ENGINE ABNORMAL OIL PRESSURE
0018 00
MALFUNCTION 7:
High oil level (overfull).
PROBABLE CAUSE
CORRECTIVE ACTION
a. Overfilled in error.
(1) Drain to proper level.
b. Oil diluted with fuel.
(1) Refer to Malfunction 8 in this work
package.
MALFUNCTION 8:
Oil diluted with fuel (evidenced by rising oil level, thin oil consistency).
PROBABLE CAUSE
CORRECTIVE ACTION
a. Engine operating at idle for extended
(1) Drain oil and refill with proper oil (refer to
periods during cold weather.
lubrication order).
(2) Avoid operating at idle for extended periods
during cold weather.
b. Fuel leakage at fuel injector nozzle body.
(1) Locate faulty nozzle as follows.
PROCEDURE
OBSERVATION
ANALYSIS
Operate engine at idle
Look for any signs of fuel leakage at
Leakage indicates
speed.
nozzle.
nozzle is defective.
Note any movement (jumping) of nozzle
Movement indicates
in cylinder head (visually or by touch).
loose nozzle cap nut in
body or collapsed
nozzle holder spring.
Nozzle is defective.
PROBABLE CAUSE
CORRECTIVE ACTION
b. (Continued) Fuel leakage at fuel injector
(2) Repair or replace nozzle assembly
nozzle body.
Replace/Repair).
c. Engine fuel supply pump shaft seal leak.
(1) Repair or replace pump assembly
& 2DA), use (WP 0048 for 2DR).
d. Fuel injection pump internal fuel leak into
(1) Replace fuel injection pump (WP 0115,
oil.
Fuel Injection Pump Assembly
Replacement).
MALFUNCTION 9:
Excessive oil consumption (150:1 fuel-to-oil ratio maximum).
PROBABLE CAUSE
CORRECTIVE ACTION
a. Loss of oil due to leaks.
(1) Inspect engine for oil leaks. Repair as
required.
b. Oil level overfull.
(1) Refer to WP 0031, Engine Oil Replacement.
WP 0018 00-3
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