Subaru Legacy IV (2008 year). Manual - part 843

FS-19

Front Arm

FRONT SUSPENSION

C: DISASSEMBLY

1. FRONT BUSHING

Using the ST and a press, remove the front bushing.
ST

927680000

INSTALLER & REMOVER 
SET

2. REAR BUSHING

1) Put an alignment mark on the front arm based on
the center of rear bushing recess portion.

CAUTION:
Always put an alignment mark for aligning the
position on bushing installation.

2) Using the ST and a press, remove the rear bush-
ing.
ST1

20299AG000

REMOVER

ST2

20299AG010

BASE

D: ASSEMBLY

1. FRONT BUSHING

Assemble in the reverse order of disassembly.

2. REAR BUSHING

1) Install the rear bushing with its longer inner cyl-
inder facing upward and the shorter facing down-
ward and protruding part rearward as shown in the
figure.

2) Align the center of rear bushing recess portion
with the aligning mark on the front arm.

(1) Put an alignment mark.

(2) Recess section

(1) Press

(2) Front arm

(3) Rear bushing

ST

FS-00110

FS-00136

(2)

(1)

(1)

(1)

(2)

(3)

ST2

ST1

FS-00126

(1) Front arm

(2) Bushing inner cylinder

(3) Longer

(4) Shorter

(5) Protrusion portion

(1) Alignment mark

(2) Recess section

FS-00113

(2)

(1)

(3)

(4)

(5)

FS-00136

(2)

(1)

(1)

FS-20

Front Arm

FRONT SUSPENSION

3) Using the ST and a press, install the rear bush-
ing.
ST1

20299AG000

REMOVER

ST2

20299AG010

BASE

E: INSPECTION

1) Check the front arm for damage or cracks, and
correct or replace if defective.
2) Check the bushing for abnormal fatigue or dam-
age.

(1) Press

(2) Front arm

(3) Rear bushing

FS-00127

(1)

(2)

(3)

ST2

ST1

FS-21

Front Strut

FRONT SUSPENSION

7. Front Strut

A: REMOVAL

1) Lift up the vehicle, and then remove the front
wheels.
2) Place an alignment mark on the camber adjust-
ing bolt and strut.
3) Remove the bolt securing the brake hose from
the strut.

4) Remove the bolt securing the ABS wheel speed
sensor harness.

5) Remove the two bolts securing the housing to
the strut.

NOTE:
While holding the head of the adjusting bolt, loosen
the self-locking nut.

6) Remove the three nuts securing strut mount to
body.

B: INSTALLATION

1) Install the strut mount at the upper side of strut to
body, and tighten it with new self-locking nuts.

Tightening torque:

20 N·m (2.0 kgf-m, 14.5 ft-lb)

2) Align alignment marks on the camber adjusting
bolt and strut.
Using new self-locking nuts, install the strut to the
housing.

NOTE:
While holding the head of adjusting bolt, tighten the
self-locking nut.

Tightening torque:

155 N·m (15.8 kgf-m, 114.3 ft-lb)

3) Secure the ABS wheel speed sensor harness to
the strut.

Tightening torque:

33 N·m (3.4 kgf-m, 24.3 ft-lb)

4) Install the bolts which secure the brake hose to
the strut.

Tightening torque:

33 N·m (3.4 kgf-m, 24.3 ft-lb)

5) Install the front wheels.
6) Inspect the wheel alignment and adjust if neces-
sary.

FS-00037

FS-00038

FS-00039

FS-22

Front Strut

FRONT SUSPENSION

C: DISASSEMBLY

1) Using a coil spring compressor, compress the
coil spring.

2) Using the ST, remove the self-locking nut.
ST

20399AG000 STRUT MOUNT SOCKET

3) Remove the strut mount, spacer and upper
spring seat from strut.
4) Gradually decrease the compression force of
compressor, and remove the coil spring.
5) Remove the dust cover and helper spring.

D: ASSEMBLY

1) Before installing the coil spring, strut mount, etc.
on strut, check for the presence of air in the damp-
ening force generating mechanism of the strut
since air prevents proper dampening force produc-
tion.
2) Checking for presence of air

(1) Place the strut vertically with the piston rod
facing up.
(2) Move the piston rod to the center of its entire
stroke.
(3) While holding the piston rod end with fin-
gers, move the rod up and down.
(4) If the piston rod moves 10 mm (0.39 in) or
more in the former step, purge air from the strut.

3) Air purging procedure

(1) Place the strut vertically with the piston rod
facing up.
(2) Fully extend the piston rod.
(3) With the piston rod fully extended, place the
piston rod side down. The strut must stand ver-
tically.
(4) Fully retract the piston rod.
(5) Repeat 3 or 4 times from the step (1).

NOTE:
After purging air from the strut, be sure to place the
strut with the piston rod facing up. If the strut is laid
down for any reason, check for the entry of air in ac-
cordance with “Checking for presence of air”
4) Using a coil spring compressor, compress the
coil spring.

NOTE:
Make sure that the vertical install direction of the
coil spring is as shown in the figure.

FS-00040

FS-00041

ST

(1) Diameter is small (Upper part)

(2) Identification paint

(3) Diameter is large (Bottom part)

(2)

(1)

(3)

FS-00231