(Table 133, contd)
Troubleshooting Test Steps
Values Results
6. Engine Oil Cooler
A. Check the oil cooler for signs of damage or restrictions.
Oil cooler Result: The oil cooler has signs of damage or restriction.
Repair: Install a new oil cooler. Refer to Disassembly and As-
sembly, “Engine Oil Cooler - Remove” and Disassembly and
Assembly, “Engine Oil Cooler - Install”.
Result: The oil cooler is OK.
Proceed to Test Step 7.
7. Fuel in the Engine Oil
A. Check fuel contamination of the engine oil. Refer to Trou-
bleshooting, “Oil Contains Fuel”.
Oil
contamination
Result: The oil contains fuel.
Repair: Refer to Troubleshooting, “Oil Contains Fuel”.
Result: The oil is not contaminated.
Proceed to Test Step 8.
8. Piston Cooling Jets
A. Inspect the piston cooling jets for cracks, damage, or miss-
ing jets.
Piston cooling
jets
Result: A piston cooling jet is cracked, damaged, or missing.
Repair: Install a new piston cooling jet. Refer to Disassembly
and Assembly, “Piston Cooling Jets - Remove and Install”.
Result: The piston cooling jets are OK.
Proceed to Test Step 9.
9. Engine Oil Suction Tube
A. Check the inlet screen on the oil suction tube and remove
any material that may be restricting oil flow.
B. Check the joints of the oil suction tube for cracks or a dam-
aged joint.
Note: Cracks or damage may allow air leakage into the sup-
ply to the oil pump.
Oil suction tube Result: The inlet screen on the oil suction tube is blocked with
debris.
Repair: Remove the debris from the inlet screen. Attempt to
identify the source of the debris.
Result: The oil suction tube is cracked.
Repair: Install a new oil suction tube.
Result: The oil suction tube is OK.
Proceed to Test Step 10.
10. Engine Oil Pump Pressure Relief Valve
A. Inspect the components of the pressure relief valve for ex-
cessive wear or damage.
Oil pump PRV Result: A component in the pressure relief valve is not within
specification.
Repair: Repair or replace the pressure relief valve, as neces-
sary. Refer to Disassembly and Assembly, “Engine Oil Relief
Valve - Remove and Install”.
Result: The pressure relief valve is OK.
Proceed to Test Step 11.
(continued)
UENR4469-36 247
Symptom Troubleshooting
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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