ARMY TM 9-6115-643-24
AIR FORCE TO 35C2-3-445-22
TABLE 3-1. DIRECT SUPPORT TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6.
BLUE OR WHITE EXHAUST SMOKE.
Test fuel injection pump timing, refer to TM 9-2815-254-24.
If timing is not correct, time fuel injection pump in accordance with TM 9-2815-254-24.
7.
LOW OIL PRESSURE.
Step 1.
Check oil relief valve for proper operation, refer to TM 9-2815-254-24.
a.
If oil relief valve is operating properly, notify next higher level of maintenance.
b.
If not operating properly, replace oil relief valve in accordance with TM 9-2815-254-24.
8.
HIGH OIL PRESSURE.
Test for defective oil relief valve, refer to TM 9-2815-254-24.
If defective, replace oil relief valve in accordance with TM 9-2815-254-24.
9.
COOLANT IN CRANKCASE OR OIL IN COOLANT.
Step 1.
Check for cracked cylinder head, refer to TM 9-2815-254-24.
a.
If cylinder head is not cracked, do step 2.
b.
If cracked, replace cylinder head in accordance with TM 9-2815-254-24.
Step 2.
Check for defective cylinder head gasket, refer to TM 9-2815-254-24.
a.
If defective, replace cylinder head gasket in accordance with TM 9-2815-254-24.
b.
If not defective and problem persists, replace engine, refer to TM 9-2815-254-24.
10.
ABNORMAL ENGINE NOISE.
Step 1.
Check for defective engine mounts.
a.
If engine mounts are not defective, do step 2.
b.
if engine mounts are defective, replace mounts, paragraph 3.6.2.
Step 2.
Check for dirty fuel injectors.
a.
Remove and inspect fuel injectors in accordance with TM 9-2815-254-24. If not dirty, do
step 3.
b.
If dirty, clean fuel injectors, or if defective, replace in accordance with TM 9-2815-254-24.
Step 3.
Check for worn rocker arm shaft, refer to TM 9-2815-254-24.
a.
If rocker arm shaft is not worn, do step 4.
b.
If worn, replace shaft and/or rocker arms in accordance with TM 9-2815-254-24.
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