TROUBLE SHOOTING (continued)
SYMPTOMS POSSIBLE CAUSE
10. Loss of engine a. Low oil level in the sump
oil pressure b. Choked oil pump
c. Badly worn crankshaft or big end bearings
d. Oil pump failed
e. Oil diluted with fuel
f. Unsuitable lubricating oil (too thin)
11. Engine a. Cooling air being recirculated
overheating b. Cooling air inlet obstructed
c. Cooling air outlet obstructed
d. Fins of the radiator blocked with dirt
e. Radiator or Axial fan belt loose or broken
f. Running on excessive overload
g. Lubricating oil level too low or too high
h. Injection timing faulty
12. Low engine a. Injector loose on its seat
compression b. Injector washer scored
c. Piston ring gaps in line
d. Inlet or exhaust valve not seating
e. Cylinder head gasket leaking
13. Engine RPM a. Tight spots on governor linkage
hunting b. Fuel pump rack not free
c. Air in fuel system
d. Faulty injector
14. High engine oil a. Valve guides worn
consumption b. Piston rings worn
c. Cylinder bore worn
15. Loss of a. Worn piston rings
crankcase b. Worn cylinder barrel bore
vacuum c. Worn oil seals
d. Too much oil in the sump
e. Oil filler cap not seating
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