16 - 6
Failure Diagnosis
Nr. Probable Cause What to do
9.612.0.006.7160 - 05/04
20 Overheating Check cooling system, and operation
and installation conditions
21 Engine excessively cold Check thermostat
22 Incorrect valves clearance Adjust valves clearance
23 Griped valves Correct the operation of the valves
24 Incorrect high pressure pipes Change
25 Cylinders wear Correct
26 Valves and seats burnt Recondition or change
27 Broken, worn or griped rings Change
28 Valves stems and guides worn Change
29 Failure in electronic fuel injection system Perform Diagnosis on the system
according to the “Diagnosis Manual”
of the engine
30 Damaged or worn bearings Change
31 Low oil level in the carter Complete level
32 Oil pressure indicator faulty Change
33 Lubricant oil pump with inner wear Change
34 Oil pump pressure relief valve locked open Free and correct
35 Oil pump pressure relief valve locked closed Free and correct
36 Pressure relief valve spring broken Change
37 Defective oil pump suction pipe Correct
38 Oil filter blocked Change element
39 Piston griped Repair cylinders
Symptoms Table (Continuation)
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