Engine Oil Pressure: Testing and Inspection

DIAGNOSIS AND TESTING-ENGINE OIL PRESSURE
1. Remove the 1/8 npt plug from the top of the oil filter housing.
2. Install Oil Pressure Line and Gauge Tool C-3292 with a suitable adapter.
3. Start engine and warm to operating temperature.
4. Record engine oil pressure and compare with engine oil pressure chart.

CAUTION: If engine oil pressure is zero at idle, DO NOT RUN THE ENGINE.

Engine Oil Pressure (MIN)
At Idle 68.9 kPa (10 psi)
At 2500 rpm 206.9 kPa (30 psi)

If minimum engine oil pressure is below these ranges, (Refer to - ENGINE - DIAGNOSIS AND TESTING). Cylinder Compression Pressure Test
5. Remove oil pressure gauge and install the 1/8 npt plug.