2-4. ENGINE TROUBLESHOOTING (CONT)
TEST OR INSPECTION
6. ENGINE OVERHEATS (Cont).
Check fuel injection pump timing adjustment
a. If timing adjustment is not okay, adjust
If timing adjustment is okay, go to step
Check fuel injection governor adjustments (page 3-14).
a. If fuel injection governor adjustments are not okay, adjust
If adjustments cannot be performed, go to step 6
If fuel injection governor adjustments are okay, go to step 7
Remove five capscrews securing gear cover and gasket to timing gear
Check fuel injection pump drive gear to idler gear backlash using
Backlash should be 0.012 inch.
a. If backlash exceeds 0.012 inch, replace fuel injection pump
drive gear (page 3-136).
Recheck backlash. If backlash still exceeds 0.012 inch, replace
idler gear (page 4-54).
Perform fuel injection pump governor adjustments (page 3-14).
b. If backlash does not exceed 0.012 inch, go to Malfunction 1,