Engine Lubrication: Testing and Inspection
OIL PRESSURE CHECKNOTE: Prior to checking oil pressure, check the following:
^ 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.
^ 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. For LH steering vehicle, use oil pressure gauge (special tool (A)) with special tool (B) instead of the steel adapter supplied in special tool (A).
Special Tool
A: 09915-77310
B: 09915-76510
3. Start engine and warm it up to normal operating temperature.
4. After warming up, raise engine speed to 4,000 r/min (rpm) and measure oil pressure.
Oil pressure specification: 390 - 470 kPa (3.9 - 4.7 kg/cm2, 55.5 - 66.8 psi) at 4,000 r/min (rpm)
5. After checking oil pressure, 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.
Tightening Torque (a): 14 Nm (1.4 kg-m, 10.0 ft. lbs.)
NOTE: If sealing tape edge is bulged out from screw threads of switch, cut it off.
7. Start engine and check oil pressure switch for oil leakage.