Subaru 1600 Service Manual page 524

STEERING SYSTEM
Trouble and possible cause
Corrective action
l) Tire pressure too low
Ad just to normal pressure
2) Improper front wheel alignment Adjust toe-in
3)
Stuck ball joint Replace
4)
Insufficient lubrication
Lubricate all parts
5) Too much tightening of adjusting spring Adjust
6)
Worn tires Replace
7) No smooth operation of universal joint Replace
2. Steering wheel vibration
This condition is manifest mostly at high speeds, on rough road or when play of the steering wheel exists.
I)
Improper tire pressure
Adjust to normal pressure
2) Incorrect front wheel alignment Adjust toe-in
3)
Unbalanced wheels and tires Correct
4)
Loosened wheel nuts
Tighten to correct torque
5) Distorted wheel
Correct or replace
6)
Damaged or worn wheel bearing Repair or replace
7) Worn ball joint
Replace
8) Damaged suspension mounting
Inspect, and correct or replace
3.
The steering wheel pulls to one side
This is a very dangerous vehicle condition, often attributable to abnormality in the front suspension system_
l) Unbalanced tire pressure
Adjust to correct pressure
2) Incorrect front wheel alignment Correct
3)
Worn or incorrectly adjusted wheel bearing Adjust or replace
4)
Insufficient operation of shock absorber Replace
5) Damaged suspension or improper installing
Inspect, correct or replace
6)
Warped crossmember Replace
7) Unequal left and right wheel base
Correct
8)
Special character of tire Rotate or Replace
4.
Shock felt at the steering wheel
I) Incorrect front wheel alignment
Adjust toe-in
2) Tire pressure too high
Adjust to normal pressure
5.
Steering wheel free play more over 25 mm (l in)
Set the steering wheel in straight ahead and when turning the wheel to both left and right, the distance along the
circumference should be less than 25 mm (I in) until the front wheels begin to turn.
I) Worn rack and pinion
Replace
2) Worn or damaged serration of steering shaft and
Tighten additionally or replace
torque rod
3)
Loose tightening of steering wheel installing nut
Tighten to specified torque
4)
Loose universal joint bolt
Tighten to specified torque
5) Looseness on universal joint
Replace
6)
Worn front wheel bearing
Adjust or replace
7) Loose connections and insufficient tightening
Tighten to specified torque or replace
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