Engine Oil Pressure - Subaru IMPREZA 2002 Service Manual

ENGINE OIL PRESSURE
MECHANICAL
6. Engine Oil Pressure
A: INSPECTION
1) Disconnect the ground terminal from battery.
2) Remove the generator from bracket.
(1) Loosen the lock bolt and slider bolt, and re-
move the front side V-belt. <Ref. to ME(S0HC)-
43, REMOVAL, V-belt.>
(2) Remove the generator lock bolt.
(3) Remove the bolt which installs the generator
on bracket.
3) Disconnect the connector from oil pressure
switch.
4) Remove the oil pressure switch from engine cyl-
inder block. <Ref. to LU-22, REMOVAL, Oil Pres-
sure Switch.>
5) Connect the oil pressure gauge hose to cylinder
block.
6) Connect the battery ground terminal to battery.
7) Start the engine, and measure oil pressure.
Oil pressure:
98 kPa (1.0 kgf/cd, 14 psi) or more at 800
rPm
294 kPa (3.0 kgflcd, 43 psi) or more at 5,000
rpm
CAUTION:
If the oil pressure is out of specification,
check oil pump, oil filter and lubrication line.
<Ref. to LU-28, INSPECTION, Engine Lubrica-
tion System Trouble in General.>
If the oil pressure warning light is turned ON
and oil pressure is in specification, replace the
oil pressure switch. <Ref. to LU-28, INSPEC-
TION, Engine Lubrication System Trouble in
General.>
NOTE:
The specified data 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-23, INSTALLATION,
Oil Pressure Switch.>
Tightening torque:
9) Install the generator and V-belt in the reverse or-
der of removal, and adjust the V-belt deflection.
<Ref. to ME(S0HC)-43, INSTALLATION, V-belt.>
25 N.m (2.5 kgf-m, 18.1 ff-lb)
ME(S0HC)-27