Subaru Legacy IV (2008 year). Service manual — part 850
RS-22
Helper
REAR SUSPENSION
11.Helper
A: REMOVAL
1) Lift up the vehicle, and then remove the rear
wheels.
2) Remove the helper using the ST.
ST
20099AE030
HELPER SOCKET WRENCH
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
32 N·m (3.3 kgf-m, 24 ft-lb)
C: INSPECTION
Check the helper for major cracks or damages.
RS-00087
ST
RS-23
General Diagnostic Table
REAR SUSPENSION
12.General Diagnostic Table
A: INSPECTION
1. IMPROPER VEHICLE POSTURE OR IMPROPER WHEEL ARCH HEIGHT
2. POOR RIDE COMFORT
1) Large rebound shock
2) Rocking of the vehicle continues too long after running over bump and hump.
3) Excessive shock in bumping
3. NOISE
Possible cause
Corrective action
(1) Permanent distortion or damaged coil spring
Replace.
(2) Rough operation of strut or shock absorber
Replace.
(3) Installation of the wrong strut or shock absorber
Replace with proper parts.
(4) Installation of the wrong coil spring
Replace with proper parts.
Possible cause
Corrective action
(1) Damaged coil spring
Replace.
(2) Overinflation of tires
Adjust.
(3) Improper wheel arch height
Adjust or replace the coil springs with new parts.
(4) Fault in operation of strut or shock absorber
Replace.
(5) Damage or deformation of strut mount or shock absorber mount
Replace.
(6) Unsuitable length (maximum or minimum) of strut or shock absorber
Replace with proper parts.
(7) Deformation or loss of bushing
Replace.
(8) Deformation or damage of helper in strut assembly or shock absorber
Replace.
(9) Oil leakage from the strut or shock absorber
Replace.
Possible cause
Corrective action
(1) Wear or damage of strut or shock absorber component parts
Replace.
(2) Loosening of the suspension link installing bolt
Tighten to the specified torque.
(3) Deformation or loss of bushing
Replace.
(4) Unsuitable length (maximum or minimum) of strut or shock absorber
Replace with proper parts.
(5) Damaged coil spring
Replace.
(6) Wear or damage of the ball joint
Replace.
(7) Deformation of the stabilizer clamp
Replace.
RS-24
General Diagnostic Table
REAR SUSPENSION
WT-2
General Description
WHEEL AND TIRE SYSTEM
1. General Description
A: SPECIFICATION
1. WHEEL AND TIRE SIZE
2. SERVICE DATA
(1) Offset
(2) P.C.D.
WT-00001
Specification
Tire size
Wheel size
Offset
mm (in)
P.C.D.
mm (in)
Tire inflation pressure kPa
(kgf/cm
2
, psi)
Front wheel
Rear wheel
Sedan
2.5 i, - LTD
P205/50 R17 88V
17 × 7JJ
55 (2.17)
100
(3.94)
230 (2.3, 33)
220 (2.2, 32)
2.5 i
P205/50 R17 88V
17 × 7JJ
P205/55 R16 89V
16 × 6
1
/
2
JJ
220 (2.2, 32)
210 (2.1, 30)
2.5 GT LTD, 3.0 R
215/45 R17 91W
17 × 7JJ
240 (2.4, 35)
230 (2.3, 33)
2.5 GT spec. B
215/45 R18 89Y
18 × 7JJ
230 (2.3, 33)
220 (2.2, 32)
3.0 R LTD
P215/45 R18 89W
18 × 7JJ
Wagon
2.5 i
P205/55 R16 89V
16 × 6
1
/
2
JJ
220 (2.2, 32)
210 (2.1, 30)
P205/50 R17 88V
17 × 7JJ
OUTBACK 2.5 i Base
P225/60 R16 97H
16 × 6
1
/
2
JJ
48 (1.89)
OUTBACK 2.5 i, -LTD, - LLB
OUTBACK 2.5 XT
OUTBACK 3.0 R LTD
P225/55 R17 95V
17 × 7JJ
Spare tire
T135/80R16 101M
16 × 4T
50 (1.97)
–
420 (4.2, 60)
T135/70D17 102M
17 × 4T
40 (1.57)
T155/70D17 110M
Part
Axial runout
Radial runout
Steel wheel
1.5 mm (0.059 in)
Aluminum wheel
1.0 mm (0.039 in)
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