Engine Oil Pressure: Inspection

WARNING: This page is about a different variant/trim than selected.

Disconnect battery ground cable.

Fig 1: Disconnecting Battery Ground Cable
Courtesy of SUBARU OF AMERICA, INC.
Remove generator from bracket. < Ref. to REMOVAL , GENERATOR. >
Disconnect connector from oil pressure switch.
Remove oil pressure switch from engine cylinder block. < Ref. to REMOVAL , OIL PRESSURE SWITCH. >
Connect oil pressure gauge hose to cylinder block.
Connect battery ground cable.

Fig 2: Connecting Battery Ground Cable
Courtesy of SUBARU OF AMERICA, INC.
Start the engine, and measure oil pressure.

Fig 3: Checking Oil Pressure Using Pressure Gauge
Courtesy of SUBARU OF AMERICA, INC.

Oil pressure:

98 kPa (1.0 kg/cm ² , 14 psi) or more at 600 rpm

294 kPa (3.0 kg/cm ² , 43 psi) or more at 5,000 rpm
CAUTION:
- If oil pressure is out of specification, check oil pump, oil filter and lubrication line. < Ref. to INSPECTION , ENGINE LUBRICATION SYSTEM TROUBLE IN GENERAL. >
- If oil pressure warning light is turned ON and oil pressure is in specification, replace oil pressure switch. < Ref. to INSPECTION , ENGINE LUBRICATION SYSTEM TROUBLE IN GENERAL. >
NOTE: The specified data is based on an engine oil temperature of 80°C (176°F).
After measuring oil pressure, install oil pressure switch. < Ref. to INSTALLATION , OIL PRESSURE SWITCH. >
Tightening torque:

25 N.m (2.5 kgf-m, 18.1 ft-lb)
Install generator and V-belt in the reverse order of removal, and adjust the V-belt deflection. < Ref. to INSTALLATION , V-BELT. >