Subaru 2009 IMPREZA, Service Manual

Page: 103 / 3619

PM-39
Suspension
PERIODIC MAINTENANCE SERVICES
21.Suspension
A: INSPECTION
1. SUSPENSION BALL JOINT
1) Jack-up the vehicle until front wheels are off
ground.
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
worn.
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.>
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.
NOTE:
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.>
2. FRONT, REAR SUSPENSION BUSHING
Apply pressure with tire lever etc. to inspect the
bushing for fatigue or cracks. If defective, replace
the bushing.
(D)
(C)
(A)
(B)
PM-00258
(D)
(C)
(B)
(A)
PM-00259
(A) Dust boots
(A)
PM-00059
PM-00405