104
Troubleshooting
Problem: Engine will not start or is hard to start (White smoke present)
Condition
Remedy
1.
Glow plugs
not heating
2.
Glow plug heating
insufficient
1. Check and troubleshoot glow plugs
2. Recycle glow plugs
Problem: Engine will not start or is hard to start - smoke present (Compression too low)
Condition
Remedy
1.
Valve clearance
out of adjustment
2.
Valve guides
worn - seated poorly
3.
Valves
mistimed
4.
Piston rings
worn excessively
5.
Cylinder bore
worn
6.
Starter motor
cranks too slowly - does not turn
1. Adjust clearance
2. Repair - replace guides
3. Retime valves
4. Replace rings
5. Replace - rebore engine block
6. See Electrical System - Troubleshooting
Problem: Engine will not start or is hard to start - smoke not present (No fuel reaching the fuel injector)
Condition
Remedy
1.
Fuel tank vent hose
obstructed
2.
Fuel hose
obstructed
3.
Fuel filter
obstructed
4.
Fuel lift pump
defective
5.
Fuel solenoid valve
not opening
1. Clean vent hose
2. Clean - replace hose
3. Replace fuel filter
4. Replace pump
5. See Electrical System - Fuel Solenoid
Problem: Engine stalls easily
Condition
Remedy
1.
Valve clearance
out of adjustment
1. Adjust clearance
Problem: Engine noisy (Excessive valve chatter)
Condition
Remedy
1.
Valve clearance
too large
2.
Valve spring(s)
weak - broken
3.
Rocker arm
-
rocker arm shaft
worn
4.
Camshaft
worn
5.
Cam followers
worn
1. Adjust clearance
2. Replace spring(s)
3. Replace arm - shaft
4. Replace camshaft
5. Replace cam followers
Problem: Engine noisy (Noise seems to come from piston)
Condition
Remedy
1.
Piston - cylinder
worn
2.
Combustion chamber carbon
buildup
3.
Piston pin - piston pin bore
worn
4.
Piston rings - ring groove(s)
worn
1. Replace - service piston - engine block
2. Clean chamber
3. Replace - service pin - bore
4. Replace rings - piston
Problem: Engine noisy (Noise seems to come from crankshaft)
Condition
Remedy
1.
Bearings
worn - burned
1. Replace bearings and/or crankshaft
