ARMY TM 9-6116-644-24
AIR FORCE TO 35C2-3-446-12
MARINE CORPS TM 09249A/09246A-24/2
TABLE 3-1. Direct Support Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. COOLANT IN CRANKCASE OR OIL IN COOLANT.
step 1.
Check for cracked cylinder head or block, refer toTM 9-2815-255-24.
a.
If cylinder head or block is not cracked, do step 2.
b.
If cracked, replace cylinder head or block in accordance with TM 9-2815-255-24.
Step 2.
Check for defective cylinder head gasket, refer to TM 9-2815-255-24.
If defective, replace cylinder heed gasket in accordance with TM 9-2815-255-24.
10.
ABNORMAL ENGINE NOISE.
Step 1.
Step 2.
Step 3.
Step 4.
Step 5.
Step 6.
Check for defective engine mounts.
a.
If engine mounts are not defective, do step 2.
b.
If engine mounts are defective, replace mounts, paragraph 3-7.
Check valve adjustment, refer to TM 9-2815-255-24.
a.
If valves are properly adjusted, do step 3.
b.
If improperly adjusted, adjust valves, refer to TM 9-2815-255-24.
Check for worn rocker arm shafts, refer to TM 9-2815-255-24.
a.
If rocker arm shafts are not worn, do step 4.
b.
If worn, replace rocker arms in accordance with TM 9-2815-255-24.
Check for bent push rods, refer to TM 9-2815-255-24.
a.
If push rods are not bent, do step 5.
b.
If bent, replace push rods in accordance with TM 9-2815-255-24.
Check for worn idler gears, refer to TM 9-2815-255-24.
a.
If idler gears are not worn, do step 6.
b.
If worn, replace idler gears in accordance with TM 9-2815-255-24.
Check for foreign material in combustion chamber, refer toTM9-2815-255-24.
a.
If foreign material is found, dean combustion chamber in accordance with
TM 9-2815-255-24.
b.
If no foreign material is found, and problem persists, replace engine, refer to
TM 9-2815-255-24.
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