Engine Lubrication: Testing and Inspection

NOTE: Prior to checking oil pressure, check 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.
^ Oil leaks. If leak is found, repair it.





1. Remove oil pressure switch from cylinder block.





2. Install special tool (Oil pressure gauge) to vacated threaded hole.
Special Tool (A): 09915-77310
3. Start engine and warm it up to normal operating temperature.

NOTE: Be sure to place transmission gear shift lever in "Neutral" (shift selector lever to "P" range for A /T model), and set parking brake and block drive wheels.

4. After warming up, raise engine speed to 4,000 r/min and measure oil pressure.

Oil pressure specification: 330 - 430 kPa (46.9 - 61.1 psi) at 4,000 r/min (rpm)

5. Stop engine and remove oil pressure gauge.





6. Before reinstalling oil pressure switch, be sure to wrap its screw threads with sealing tape and tighten switch to specified torque.

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

Tightening Torque (a): 14 Nm (10.5 ft. lbs.)

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