TM 9-4940-549-14&P
Table 4-2. Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
If fuel nozzle assembly is not damaged, proceed to step 2.
Check for damaged fuel injection pump.
Step 2.
If fuel injection pump is damaged, replace pump (para. 8-6).
If fuel injection pump is not damaged, proceed to step 3.
Check for damaged head gasket.
Step 3.
If head gasket is damaged, replace head gasket (para. 12-4) .
If head gasket is not damaged, proceed to step 4.
Step 4.
Check for damaged valves or valve spring.
If valves or valve springs are damaged, replace damaged part.
If valves or valve springs are not damaged, check for damaged pis-
tons or piston rings.
5.
Engine Will Not Idle Smoothly.
Check for damaged fuel nozzle assembly.
Step 1.
If fuel nozzle assembly is damaged, replace fuel nozzle assembly
If fuel nozzle assembly is not damaged, proceed to step 2.
Step 2.
Check for damaged fuel injection pump.
If fuel injection pump is damaged, replace fuel injection pump
If fuel injection pump is not damaged, proceed to step 3.
Check for damaged valves or damaged valve springs.
Step 3.
If valves or valve springs are damaged, replace as required (para.
If valves or valve springs are not damaged, check camshaft.
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