Oil Pressure Test

NOTE: If the low oil pressure indicator stays on with the engine running, check the engine oil level. If the oil level is correct:

Remove the engine oil pressure switch, then install the oil pressure gauge (A).

Fig 1: Identifying Oil Pressure Gauge
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Start the engine. Shut it off immediately if the gauge registers no oil pressure. Repair the problem before continuing.
Allow the engine to reach operating temperature (fan comes on at least twice). The pressure should be:
Engine Oil Temperature: 176°F (80°C)

Engine Oil Pressure:

At Idle: 70 kPa (0.7 kgf/cm ² , 10 psi) min.

At 3,000 rpm: 340 kPa (3.5 kgf/cm ² , 50 psi) min.
If the oil pressure is not within specifications, inspect these items:
- Blocking of oil filter.
- Inspect the oil pressure relief valve (see OIL PUMP OVERHAUL ).
- Blocking of oil screen.
- Inspect the oil pump (see INSPECTION ).
Remove oil pressure gauge and oil pressure gauge attachment, then install the engine oil pressure switch.