Engine Oil Pressure - Subaru Legacy 2004 Service Manual

MECHANICAL

6. Engine Oil Pressure

A: INSPECTION
1) Disconnect the ground cable from battery.
2) Remove the generator from bracket. <Ref. to
SC(H4SO 2.0)-14, REMOVAL, Generator.>
3) Disconnect the connector from oil pressure
switch.
4) Remove the pressure switch from cylinder block.
<Ref. to LU(H4SO 2.0)-17, REMOVAL, Oil Pres-
sure Switch.>
5) Connect the oil pressure gauge hose to cylinder
block.
6) Connect the battery ground cable to battery.
7) Start the engine, and measure oil pressure.
Oil pressure:
Standard
2
88 kPa (0.9 kg/cm , 13 psi) or more at 800 rpm
294 kPa (3.0 kg/cm
rpm
Engine Oil Pressure
IN-00203
IN-00203
ME-00196
2
, 43 psi) or more at 5,000
ME(H4SO 2.0)-26
CAUTION:
• If the oil pressure is out of specification,
check oil pump, oil filter and lubrication line.
<Ref. to LU(H4SO 2.0)-19, INSPECTION, Gener-
al Diagnostic Table.>
• If the oil pressure warning light is turned to
ON but oil pressure is within specification, re-
place the oil pressure switch. <Ref. to LU(H4SO
2.0)-19, INSPECTION, General Diagnostic Ta-
ble.>
NOTE:
The specified value is based on an engine oil tem-
perature of 80"C (176"F).
8) After measuring the oil pressure, install the oil
pressure switch. <Ref. to LU(H4SO 2.0)-17, IN-
STALLATION, Oil Pressure Switch.>
Tightening torque:
&
25 N m (2.5 kgf-m, 18.1 ft-lb)