Troubleshooting

• Engine oil suction tube
• Engine oil pump
• Bearing clearance
Recommended Actions
Note: The procedures have been listed in order of
probability. Complete the procedures in order.
Table 59
Troubleshooting Test Steps
Values Results
1. Visible Leaks
A. Thoroughly inspect the engine for oil leaks.
Visible leaks Result: There are visible oil leaks.
Repair: Repair any leaks.
Result: There are no visible oil leaks
Proceed to Test Step 2.
2. Engine Oil Level
A. Check the engine oil level.
Oil level Result: The engine oil level is low.
Repair: Fill the oil system to the full mark on the dipstick.
Result: The engine oil level is OK.
Proceed to Test Step 3.
3. Oil Specification
A. Check that engine oil of the correct specification is being
used. Refer to the Operation and Maintenance Manual, “Refill
Capacities and Recommendations”.
Oil specification Result: An incorrect specification of engine oil is being used.
Repair: Drain the oil system and refill the oil system with en-
gine oil of the correct specification. Refer to Operation and
Maintenance Manual, “Engine Oil and Filter - Change”.
Result: The engine contains oil of the correct specification.
Proceed to Test Step 4.
4. Engine Oil Filter
A. Remove the engine oil filter. Refer to the Operation and
Maintenance Manual, “Engine Oil and Filter - Change”.
B. Inspect the engine oil filter for evidence of blockage.
Oil filter Result: The oil filter is blocked.
Repair: Install a new oil filter. Refer to the Operation and
Maintenance Manual, “Engine Oil and Filter - Change” for fur-
ther information.
Result: The oil filter is OK.
Repair: Install a new oil filter. Refer to the Operation and
Maintenance Manual, “Engine Oil and Filter - Change” for fur-
ther information.
Proceed to Test Step 5.
(continued)
118 UENR0612-07
Symptom Troubleshooting
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