Steering Gear: Service and Repair
Engine Speed Sensing Power SteeringREMOVAL
Steering Gear
1. Raise and support vehicle, then remove front wheels.
2. Remove cotter pin, nut and tie rod end ball joint.
3. Support engine with suitable tool and remove engine mount.
4. Remove pressure pipe, return hose and clamp, then the intermediate shaft bolt.
5. Remove mounting bracket nut and bolt, and pull steering gear out righthand side.
6. Reverse procedure to install, noting the following:
a. Loosely tighten upper mounting bolts, then tighten lower bolts to specifications right to left followed by upper bolts left to right.
b. Hand tighten pressure pipe fitting to gear housing, then hand tighten lower bracket bolt. Tighten upper bracket bolt, then the lower bolt to specifications.
7. After installation, check for fluid leakage, bleed air from the system, check the steering angle and toe-in, and adjust if necessary.
DISASSEMBLY
Steering Lock Mounting Bolts and Bracket
1. Use a chisel and a hammer to make a groove in the heads of the steering lock mounting bolts.
2. Remove the bolts by using a screwdriver.
3. Remove the steering lock assembly.
Tie-Rod End Ball Joint
1. Remove the tie-rod nut.
2. Separate the tie rod end from the steering knuckle by using the SST.
Engine Mount
1. Use the SST as shown.
2. Remove the engine mount.
Steering Gear and Linkage
Pull the steering gear from the right side to remove it.
STEERING GEAR
INSPECTION
Tie Rod End
1. Inspect the tie rod end for damage and boot cracks. Replace it as necessary.
2. Inspect the ball joint for looseness. Replace the tie rod end as necessary.
3. Rotate the ball joint five times.
4. Measure the rotation torque of the ball joint by using the SST and a pull scale.
Rotation Torque
0.3-2.9 Nm (3-30 kgf.cm, 2.6-26 in. lb)
Pull Scale Reading:
3-29 Nm (0.3-3 kgf, 0.7-6.6 in lb ft)
5. If not within specification, replace the tie rod end.
Tie Rod
1. Inspect the tie rod for bending and damage. Replace it if necessary.
2. Inspect the ball joint for looseness. Replace the tie rod as necessary.
3. Swing the tie rod five times.
4. Measure the swinging torque by using a pull scale.
Swinging Torque:
0.1-3.4 Nm (1-35 kgf.cm, 0.9-30 in. lb)
Pull Scale Reading:
0.7-21 Nm (0.07-2.2 kgf, 0.16-4.8 lb ft)
5. If not within specification, replace the tie rod.
ASSEMBLY
Adjusting Cover
1. Set the rack in the center position.
2. Tighten the adjusting cover to 9.8 Nm (100 kgf cm, 87 in lb), then loosen it.
3. Tighten again to 4.4-5.4 Nm (45-55 kgf.cm, 39-48 in. lb), and then return it 20 degrees.
4. Apply thread-locking compound to the exposed threads of the adjusting cover.
5. Attach the SST and a pull scale to the pinion shaft.
6. Measure the pinion preload.
Rack Position: Center +/-90 deg. Pinion preload:
1.2-1.5 Nm (12-16 kgfcm, 11-13 in. lb)
Pull Scale Reading:
12-15 Nm (1.2-1.6 kgf, 2.8-3.3 lb ft)
7. If not within specification, repeat Step 2-6.
8. Tighten the locknut while holding the adjusting cover by using the SST.
Tightening Torque:
49-58 Nm (5.0-6.0 kgfm, 37-43 lb. ft)
INSTALLATION
Mounting Bracket Nut and Bolt
1. Loosely tighten nuts 4 and 3.
2. Tighten the mounting brackets nuts and bolts to the specified torque in the order shown.
Tightening Torque:
38-51 Nm (3.8-5.3 kgf m, 28-38 ft-lb)
Pressure Pipe
1. Hand-tighten the pressure pipe fitting to the gear housing, being careful not to damage the 0-ring.
2. Hand-tighten bolt A.
3. Tighten bolt B to the specified torque.
4. Tighten bolt A and the pressure pipe fitting to the specified torque.