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 an 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: 343 kPa (3.5 kgf/cm ² , 49.8 psi) min.
If oil pressure is out of specifications, inspect these items:
- Blocking of oil filter, Replace the oil filter (see ENGINE OIL FILTER REPLACEMENT ) .
- Check the oil screen for clogging.
- Inspect the oil pressure relief valve (see OIL PUMP OVERHAUL ).
- Inspect the oil pump (see INSPECTION ).
Remove the oil pressure gauge, then install the oil pressure switch.