Inspection And Verification

Engine

Inspection and Verification

1. Verify the customer concern.

2. Visually inspect for obvious signs of damage.

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

4. If the concern is not visually evident, check the base oil pressure.

5. Remove the Engine Oil Temperature (EOT) sensor. Refer to Computers and Control Systems.

6. Install the High-Pressure Pump Test Adapter.
- Tighten to 12 Nm (106 lb-in).





7. NOTICE: Use a backup wrench on the High-Pressure Pump Test Adapter when installing the oil pressure gauge or engine damage may occur.

Install a commercially available oil pressure gauge and check the base oil pressure. The minimum engine oil pressure specifications are 82.7 kPa (12 psi) at 700 rpm, 165.5 kPa (24 psi) at 1,200 rpm and 310.3 kPa (45 psi) at 1,800 rpm with the engine at operating temperature.

8. Install the EOT sensor. Refer to Computers and Control Systems.

9. If the concern is not evident, verify the symptom. GO to Symptom Chart. Symptom Chart