TM 5-3825-270-23&P
0020
3.
Visually inspect exhaust manifold for damage and cracks.
CONDITION/INDICATION
Is exhaust manifold free of damage and leaks?
DECISION
No - Replace exhaust manifold. (WP 0129) Verify problem is solved. (Step 5 - Is engine exhaust normal?)
Yes - Go to step 4. (Step 4 - Are engine injection nozzles free from deposits, cracks and other signs of
damage?)
STEP 4
Are engine injection nozzles free from deposits, cracks and other signs of damage?
1.
Remove engine injection nozzles. (WP 0120)
2.
Inspect engine injection nozzles for following conditions:
Burned on combustion deposits
Rough surfaces and erosion around nozzle tip
Damaged injector nozzle gaskets
Cracks
Additional or missing sealing washers
Abnormal nozzle color (dark yellow and tan, or blue depending on temperature of overheat)
CONDITION/INDICATION
Are engine injection nozzles free from deposits, cracks and other signs of damage?
DECISION
No - Replace damaged engine nozzle assembly. (WP 0120) Verify problem is solved. (Step 5 - Is engine exhaust
normal?)
Yes - Replace engine. (WP 0128) Verify problem is solved. (Step 5 - Is engine exhaust normal?)
STEP 5
Is engine exhaust normal?
Start engine and observe engine exhaust. (TM 5-3825-270-10)
CONDITION/INDICATION
Is engine exhaust normal?
DECISION
No - If the problem still exists, it is possible that another fault exists or that another troubleshooting procedure
applies. If this was the first time through the task, restart the same symptom troubleshooting fault task.
Yes - Your original problem has been resolved.
END OF WORK PACKAGE
0020-3/4 blank