Table 23
Troubleshooting Test Steps
Values Results
1. Engine Oil Cooler
A. Drain the coolant from the cooling system. Drain the lubri-
cating oil from the engine. Refer to the Operation and Mainte-
nance Manual for more information.
B. Check for leaks in the engine oil cooler. Refer to Systems
Operation, Testing, and Adjusting, “Cooling System” for the
correct procedure.
Oil Cooler Result: A leak is found in the engine oil cooler.
Repair: Install a new oil cooler. Refer to Disassembly and
Assembly, “Engine Oil Cooler - Remove” and Disassembly
and Assembly, “Engine Oil Cooler - Install” for the correct
procedure.
Flush the cooling system. Refer to the Operation and
Maintenance Manual for the correct procedure. Refill the
cooling system with the correct coolant. Refer to the Oper-
ation and Maintenance Manual for the recommended
coolant and capacities.
After the leak has been repaired, refill the engine with oil
of the correct specification . Refer to the Operation and
Maintenance Manual for the correct oil capacity and
viscosity.
Result: A leak was not found in the engine oil cooler.
Proceed to Test Step 2.
2. Cylinder Head Gasket
A. Remove the cylinder head. Refer to Disassembly and As-
sembly, “Cylinder Head - Remove”.
B. Inspect the cylinder head gasket for faults and any signs of
leakage.
Cylinder head
gasket
Result: The cylinder head gasket shows signs of damage
or leakage.
Repair: Install a new cylinder head gasket and install the
cylinder head. Refer to Disassembly and Assembly, “Cyl-
inder Head - Install” .
Result: The cylinder head gasket does not show signs of
damage or leakage.
Proceed to Test Step 3.
(continued)
UENR4469-36 83
Symptom Troubleshooting
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