Oil Pressure Test
- Disconnect and remove the oil pressure sensor (9278) from the engine.
- Connect the Engine Oil Pressure Gauge to the oil pressure sender oil galley port.
- Run the engine until normal operating temperature is reached.
- Run the engine at the specified RPM and record the gauge reading.
- The oil pressure should be within specifications.
- If the pressure is not within specification, check the following possible sources:
- Insufficient Oil
- Oil Leakage
- Worn Or Damaged Oil Pump
- Oil Pump Screen Cover And Tube (6622)
- Excessive Main Bearing Clearance
- Excessive Connecting Rod Bearing Clearance