Hydraulic Power Steering

REMOVAL

CAUTION: Supplemental Restraint System (SRS).
- Before removal of steering gear box, center front wheels and remove ignition key. Failure to do so may damage SRS clock spring and render SRS system inoperative, risking serious driver injury.

1. Drain power steering fluid.
2. Remove stabilizer bar.
3. Remove washer tank.
4. Follow removal steps outlined in illustration.

NOTE: Removal service points as follows:





a. Tie rod end and knuckle disconnection (4).

CAUTION:
1. Tie the cord of the special tool to a nearby part.
2. Loosen the nut but do not remove it.





b. Gear box assembly removal (9).
1. Remove the installation section (vehicle side) of the compression lower arm left side.

CAUTION: The compression lower arm should be suspended so that undue force is not applied to the ball joint.

2. Remove the connection between the gear box assembly and joint assembly, and remove the gear box assembly from the crossmember at the left side.

CAUTION: Be careful not to damage the bellows and the tie rod end dust cover when removing the gear box assembly.

INSPECTION
1. Check the rubber parts for cracks and breakage.
2. Check dust cover. If there are any cracks in or damage to the dust cover, replace the tie rod end and the dust cover.





3. Total pinion torque check.
Using the special tools, rotate the pinion gear at the rate of one rotation in approximately 4 to 6 seconds to check the total pinion torque.
Standard value: 0.7 - 1.4 Nm (6 - 12 inch lbs.)
[Change in torque: 0.4 Nm (3 inch lbs.)]

NOTE: When measuring, remove the bellows from the rack housing. Measure the pinion torque through the whole stroke of the rack.
If the measured value is not within the standard range, first adjust the rack support cover, and then check the total pinion starting torque again.
If the total pinion torque cannot be adjusted to within the standard range by adjusting the rack support cover, check the rack support cover, rack support spring, rack support and replace any parts if necessary.

4. Tie rod swing resistance check.
a. Give 10 hard swings to the tie rod.





b. Measure the tie rod swing resistance with a spring scale.
Standard value: 7.8 - 27 N (1.8 - 6.2 lbs.)
[1.5 - 4.9 Nm (13 - 43 inch lbs.)]
c. When the measured value exceeds the standard value, replace the tie rod assembly.
d. When the measured value is lower than the standard value, check that the ball joint swings smoothly without excessive play. If so, it is possible to use that ball joint.

INSTALLATION
Installation in reverse order as removal, noting the following:
1. Install stabilizer bar.
2. Install washer tank.
3. Power steering fluid supplying.
4. Power steering fluid line bleeding. Service and Repair
5. Steering wheel position with wheels straight ahead checking.
6. Front wheel alignment adjustment.