TROUBLESHOOTING

Excessive Oil Consumption

EXCESSIVE OIL CONSUMPTION

Possible CauseCorrection

1.External oil leaks.1.Check engine for visible signs of oil leakage. Look for loose or stripped oil drain plugs, leaking gaskets (cylinder head cover, etc.) and front and rear oil seal leakage.

2.Clogged crankcase breather pipe.2.Remove any obstruction.

3.Excessive exhaust back pressure.3.Check exhaust pressure. Repair as necessary.

4.Worn valve guides.4.Replace valve guides.

5.Air compressor passing oil.5.Repair or replace air compressor.

6.Turbocharger sealing ring failure.6.Check for oil in the inlet manifold. Install remanufactured turbocharger.

7.Internal engine wear.7.Overhaul engine.

8.Injection pump LDA diaphragm failure.8.Check for leakage past diaphragm. Replace or repair as necessary.

Engine Overheats

Engine Overheats

Possible CauseCorrection

1. Coolant level low.1.Locate cause. Look for leaking gaskets or loose or leaking hoses. Repair, replace or tighten as necessary. Replenish coolant.

2.Loose or worn fan belts.2.Adjust belt tension or replace belts as necessary.

3.Restricted flow through heat exchanger.3.Clean any restrictions or replace exchanger as necessary.

4.Defective heat exchanger pressure cap.4.Test pressure of the cap. Replace cap, if necessary.

5.Defective coolant thermostat or temperature gauge.5.Check opening temperature of thermostat. Check for correct installation. Replace as necessary. Check temperature gauge. Replace if defective.

6.Combustion gases in coolant.6.Determine point where gases are entering the cooling system. Repair or replace parts as necessary.

7.Plugged oil cooler.7.Remove oil cooler. Disassemble, remove restrictions and replace parts as necessary. Reinstall.

8.Defective water pump.8.Remove, repair or reinstall water pump as necessary.

9.Incorrect fuel injection pump-to-engine timing.9.Check fuel injection pump-to-engine timing. Reset timing as necessary.

10.Improper valve lash adjustment.10.Adjust valve lash to specified clearance.

11.Defective raw water pump11.Check for damaged impeller and proper functioning. Remove, repair and reinstall as necessary.

12.Closed engine sea water seacock.12.Open engine sea water seacock.