Table 4-2. Troubleshooting-Continued
TEST OR INSPECTION
Check fuel injection pump timing.
If fuel injection pump needs timed, retime fuel pump (para. 8-6).
If fuel injection pump is in time, proceed to step 5.
If timing gears are damaged, replace damaged parts.
If timing gears are not damaged, proceed to step 6.
Check for damaged or worn connecting rod bearings and wrist
If connecting rod bearings or wrist pins are damaged or worn,
replace the defective parts (para. 12-10).
If connecting rod bearings or wrist pins are not defective, check
Check for damaged fuel injection nozzles.
If fuel injection nozzles are damaged, replace nozzles (para. 8-7).
If fuel injection nozzles are dirty, or out of adjustment, clean and
If fuel injection nozzles are not damaged, dirty, or out of
adjustment, proceed to step 2.
Check for damaged head gasket.
If head gasket is not damaged, proceed to step 3.
Check valves, guides, and springs for damage and wear.
If valves, guides, or springs are damaged or worn, replace as
If valves, guides, and springs are not damaged or worn, check for
worn cylinder walls or piston rings.