Subaru 2009 IMPREZA Service Manual page 103

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21.Suspension

A: INSPECTION

1. SUSPENSION BALL JOINT

1) Jack-up the vehicle until front wheels are off

2) Grasp the bottom of tire and move it in and out in

axial direction. If relative movement (B) is observed

between the brake disc cover (A) and the end of

front arm (D), ball joint (C) may be excessively

3) Grasp the end of front arm and move it up and

down. Relative movement (A) between the housing

(D) and front arm (C) boss indicates ball joint (B)

may be excessively worn.

4) If the relative movement is observed in the pre-

ceding two steps, remove and inspect the ball joint.

If the free play exceeds the standard, replace the

ball joint. <Ref. to FS-17, Front Ball Joint.>

PERIODIC MAINTENANCE SERVICES

5) Damage of dust boots

Visually inspect the ball joint dust boots. If it is dam-

aged, remove the front arm. <Ref. to FS-19, Front

Arm.> Measure the play of the ball point. <Ref. to

FS-17, Front Ball Joint.>

(1) When looseness exceeds the standard, re-

place the ball joint.

(2) If the dust boots are damaged, replace with

a new ball joint.

When the front arm ball joint has been removed or

replaced, check the toe of front wheel. If the front

wheel toe-in is not at specified value, adjust the

toe-in. <Ref. to FS-7, Wheel Alignment.>

(A) Dust boots

2. FRONT, REAR SUSPENSION BUSHING

Apply pressure with tire lever etc. to inspect the

bushing for fatigue or cracks. If defective, replace

the bushing.