Oil Pressure Test

NOTE: If the low oil pressure warning indicator stays on with the engine running, check the engine oil level If the oil level is correct, do the following test

With the engine stopped, remove the oil pressure switch, and 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 300 kPa (3 1 kgf/cm ² , 44 psi) min
If the oil pressure is out of specifications, inspect these items
- Replace the oil filter (see ENGINE OIL FILTER REPLACEMENT )
- Inspect the oil pressure relief valve (see OIL PUMP OVERHAUL )
- Check the oil screen for clogging
- Inspect the oil pump (see OIL PUMP INSPECTION )