Engine Lubrication: Testing and Inspection

OIL PRESSURE CHECK

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 followings.
^ Oil level in oil pan. If oil level is low, add oil up to Full level hole on oil level gauge.
^ Oil quality. If oil is discolored, or deteriorated, change it.
For particular oil to be used, refer to Section OB.
^ Oil leaks. If leak is found, repair it.





1. Disconnect oil pressure switch cable.
2. Remove oil pressure switch from cylinder block.





3. Install special tool (Oil pressure gauge) to vacated threaded hole.
Special Tools
(A): 09915-77310
(B): 09915-78211

CAUTION: Be careful not to make special tool touch Exhaust manifold when installing because Exhaust manifold becomes very hot.

4. Start engine and warm it up to normal operating temperature.

NOTE: Be sure to place transmission gear shift lever in "Neutral", and set parking brake and block drive wheels.

5. After warming up, raise engine speed to 4,000 r/min and measure oil pressure.
Oil pressure specification: 390 - 470 kPa (3.9 - 4.7kg/cm2, 55.5 - 66.8 psi) at 4,000 r/min (rpm)
6. After checking oil pressure, stop engine and remove oil pressure gauge.





7. Before reinstalling oil pressure switch, be sure to wrap its screw threads with sealing tape and tighten switch to specified torque.
Tightening Torque (a): 14 Nm (1.4 kg-m, 10.5 ft. lbs.)

NOTE: If sealing tape edge is bulged out from screw threads of switch, cut it off.

8. Start engine and check oil pressure switch for oil leakage.