Suzuki Liana RH413, Service Manual

Page: 265 / 1302

Engine Lubrication System: 1E-2
Diagnostic Information and Procedures
Oil Pressure Check
S3RH0A1504001
WARNING
!
To avoid danger of being burned, do not
touch exhaust manifold when exhaust
system is hot.
When servicing, be sure to perform it after
exhaust system has cooled down.
NOTE
Prior to checking oil pressure, check the
following items.
• Oil level in oil pan
If oil level is low, add oil up to Full level
mark (hole) on oil level gauge.
• Oil quality
If oil is discolored, or deteriorated, change
it. For particular oil to be used, refer to
“Engine Oil and Filter Change in Section
0B”.
• Oil leaks
If leak is found, repair it.
1) Disconnect oil pressure switch coupler (1).
2) Remove exhaust manifold cover, if necessary.
3) Remove oil pressure switch (2) from cylinder block.
4) Install special tools (Oil pressure gauge) to vacated
threaded hole.
Special tool
(A): 09915–77311
(B): 09915–78211
CAUTION
!
Be careful not to make special tool touch
Exhaust manifold when installing because
Exhaust manifold becomes very hot.
5) Start engine and warm it up to normal operating
temperature.
NOTE
Be sure to place transaxle gear shift lever in
“Neutral” (shift selector lever to “P” range for
A/T model), and set parking brake and block
drive wheels.
6) After warming up, raise engine speed to 4,000 r/min.
and measure oil pressure.
Oil pressure specification
More than 270 kPa (2.7 kg/cm
2 , 39.8 psi) at 4,000
r/min. (rpm)
7) After checking oil pressure, stop engine and remove
oil pressure gauge and attachment.
8) Before reinstalling oil pressure switch (2), be sure to
wrap its screw threads with sealing tape (1) and
tighten switch to specified torque.
NOTE
If sealing tape edge is bulged out from screw
threads of switch, cut it off.
Tightening torque
Oil pressure switch (a): 14 N·m (1.4 kgf-m, 10.5
lb-ft)
1. Full level mark (hole)
2. Low level mark (hole)
I2RH0B150002-01
I2RH0B150003-01
I2RH0B150004-01