Subaru Impreza 2003, Service Manual

Page: 118 / 3610

PM-42
PERIODIC MAINTENANCE SERVICES
SUSPENSION
23.Suspension
A: INSPECTION
1. SUSPENSION BALL JOINT
1) Jack-up the vehicle until front wheels are off
ground.
2) Next, grasp the bottom of tire and move it in and
out. If relative movement (B) is observed between
the brake disc cover (A) and end of transverse link
(D), ball joint (C) may be excessively worn.
3) Next, grasp the end of transverse link and move
it up and down. Relative movement (A) between
the housing (D) and transverse link (C) boss indi-
cates ball joint (B) may be excessively worn.
4) If relative movement is observed in the immedi-
ately preceding two steps, remove and inspect the
ball joint. If free play exceeds standard, replace the
ball joint. <Ref. to FS-19, Front Ball Joint.>
5) Damage of dust seal
Visually inspect the ball joint dust seal. If it is dam-
aged, remove the transverse link. <Ref. to FS-16,
Front Transverse Link.> And measure free play of
ball joint. <Ref. to FS-19, Front Ball Joint.>
(1) When looseness exceeds standard value,
replace the ball joint.
(2) If the dust seal is damaged, replace with the
new ball joint.
NOTE:
When the transverse link ball joint has been re-
moved or replaced, check the toe-in of front wheel.
If the front wheel toe-in is not at specified value, ad-
just the toe-in. <Ref. to FS-7, Wheel Alignment.>
2. TRANSVERSE LINK'S REAR BUSHING
Check oil leaks at around liquid-filled bushing. If oil
leaks, replace the bushing.
3. WHEEL ARCH HEIGHT
1) Unload cargoes and set the vehicle in curb
weight (empty) condition.
2) Then, check the wheel arch height of front and
rear suspensions to ensure that they are within
specified values. <Ref. to FS-7, Wheel Alignment.>
3) When the wheel arch height is out of standard,
visually inspect the following components and re-
place deformed parts.
• Suspension components [Front strut assembly
and rear shock absorber assembly]
• Parts connecting between suspension and body.
4) When no components are deformed, adjust the
wheel arch height by replacing coil spring in the
suspension which wheel arch height is out of stan-
dard. <Ref. to FS-7, Wheel Alignment.> <Ref. to
RS-10, Wheel Alignment.>
PM-00057
(A)
(B)
(C)
(D)
PM-00058
(A)
(B)
(C)
(D)
(A) Dust seal
(A) Rear bushing
(B) Transverse link
PM-00059
(A)
PM-00060
(A)
(B)