Component Tests and General Diagnostics

Adjustment

Steering Wheel Play Inspection
1. Turn the steering wheel so that the front wheels can face straight ahead.
2. Measure the distance the steering wheel can be turned without moving the front wheels.

Standard value:30mm (1.18in.) or less





3. If the play exceeds standard value, inspect the steering column, shaft, and linkages.

Checking stationary steering effort
1. Position the vehicle on a level surface and place the steering wheel in the straight ahead position.
2. Start the engine and turn the steering wheel from lock to lock several times to warm up the power steering fluid.
3. Attach a spring scale to the steering wheel. With the engine speed 900 - 1100rpm, pull the scale and read it as soon as the tires begin to turn.

Standard value:3.5kgf or less





4. If the measured value exceeds standard value, inspect the power steering gear box and pump.

Oil pump relief pressure test
1. Disconnect the pressure tube from the power steering pump and then install the special tools between the pump and the pressure tube as illustration below.




2. Start the engine and turn the steering wheel several times so that the fluid temperature can rise to approx. 50 - 60 C (122 F).
3. Set the engine speed to approx. 1000rpm.
4. Close the shut-off valve of the special tools and measure the fluid pressure.

Relief pressure:
100 - 105kgf/cm2 (1422 - 1493psi, 9.7 - 10.2Mpa)


CAUTION:
Do not keep the shut-off valve on the pressure gauge closed for longer than 10 seconds.

5. Remove the special tools, and than connect the pressure tube to the pump by tightening the eye bolt.
6. Bleed the power steering system.