2-4. ENGINE TROUBLESHOOTING (CONT)
TEST OR INSPECTION
3. ENGINE STARTS BUT WILL NOT RUN (Cont).
Step 10. (Cont).
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,
Step 11. Check valve timing (page 3-8).
a. If valve timing is not okay as indicated by dial indicator hand
not indicating 0.053 inch, go to Malfunction 11, page 2-41.
b. If valve timing is okay as indicated by dial indicator hand in-
dicating 0.053 inch, go to step 12 below.
Step 12. Remove cylinder head assemblies (page 3-45).
Remove valve locks, valve retainers, and springs (page 3-74).
Check for bent valves or worn or broken valve spring (page 3-76).
a. If a valve is bent or a valve spring broken, replace (page
b. If valves and valve springs are okay, check for incorrectly in-
stalled valve guide (page 4-12).