wheel alignment SUBARU LEGACY 1996 Service Repair Manual

Symptom and possible cause Remedy
5. Noises when cornering


1Damaged differential gear. Replace.


2Excessive wear or damage of thrust washer. Replace.


3Broken pinion mate shaft. Replace.


4Seized or damaged side bearing. Replace.
6. Gear noises
Since noises from engine, muffler, transmission, propeller shaft, wheel bearings, tires, and body are sometimes mistaken for noises
from differential assembly, be careful in checking them. Inspection methods to locate noises include coasting, accelerating, cruising,
and jacking-up all four wheels. Perform these inspections according to condition of trouble. When listening to noises, shift gears into
four wheel drive and fourth speed position, trying to pick up only differential noise.


1Improper tooth contact of hypoid gear. Readjust or replace hypoid gear set.


2Improper backlash for hypoid gear. Readjust.


3Scored or chipped teeth of hypoid gear. Replace hypoid gear set.


4Seized hypoid gear. Replace hypoid gear set.


5Improper preload for front or rear bearings. Readjust.


6Seized, scored, or chipped front or rear bearing. Replace.


7Seized, scored, or chipped side bearing. Replace.


8Vibrating differential carrier. Replace.
2. Propeller Shaft
Symptom and possible cause Remedy
1. Vibration of propeller shaft
Vibration is caused by propeller shaft during operation and is transferred to vehicle body. Generally vibration increase in proportion to
vehicle speed.


1Worn or damaged universal joint. Replace.


2Unbalanced propeller shaft due to bend or dent. Replace.


3Loose installation of propeller shaft. Retighten.


4Worn or damaged center bearing and damaged center mount-
ing rubber.Replace.
2. Tapping when starting and noise while cruising, caused by propeller shaft.


1Worn or damaged universal joint. Replace.


2Worn spline of sleeve yoke. Replace.


3Loose installation of propeller shaft. Retighten.


4Loose installation of joint. Replace.


5Worn or damaged center bearing and damaged center mount-
ing rubber.Replace.
NOTE:
Vibration while cruising may be caused by an unbalanced
tire, improper tire inflation pressure, improper wheel
alignment, etc.
41
3-4DIAGNOSTICS
1. Rear Differential - 2. Propeller Shaft

Symptom and possible cause Remedy
5. Noises when cornering


1Damaged differential gear. Replace.


2Excessive wear or damage of thrust washer. Replace.


3Broken pinion mate shaft. Replace.


4Seized or damaged side bearing. Replace.
6. Gear noises
Since noises from engine, muffler, transmission, propeller shaft, wheel bearings, tires, and body are sometimes mistaken for noises
from differential assembly, be careful in checking them. Inspection methods to locate noises include coasting, accelerating, cruising,
and jacking-up all four wheels. Perform these inspections according to condition of trouble. When listening to noises, shift gears into
four wheel drive and fourth speed position, trying to pick up only differential noise.


1Improper tooth contact of hypoid gear. Readjust or replace hypoid gear set.


2Improper backlash for hypoid gear. Readjust.


3Scored or chipped teeth of hypoid gear. Replace hypoid gear set.


4Seized hypoid gear. Replace hypoid gear set.


5Improper preload for front or rear bearings. Readjust.


6Seized, scored, or chipped front or rear bearing. Replace.


7Seized, scored, or chipped side bearing. Replace.


8Vibrating differential carrier. Replace.
2. Propeller Shaft
Symptom and possible cause Remedy
1. Vibration of propeller shaft
Vibration is caused by propeller shaft during operation and is transferred to vehicle body. Generally vibration increase in proportion to
vehicle speed.


1Worn or damaged universal joint. Replace.


2Unbalanced propeller shaft due to bend or dent. Replace.


3Loose installation of propeller shaft. Retighten.


4Worn or damaged center bearing and damaged center mount-
ing rubber.Replace.
2. Tapping when starting and noise while cruising, caused by propeller shaft.


1Worn or damaged universal joint. Replace.


2Worn spline of sleeve yoke. Replace.


3Loose installation of propeller shaft. Retighten.


4Loose installation of joint. Replace.


5Worn or damaged center bearing and damaged center mount-
ing rubber.Replace.
NOTE:
Vibration while cruising may be caused by an unbalanced
tire, improper tire inflation pressure, improper wheel
alignment, etc.
41
3-4DIAGNOSTICS
1. Rear Differential - 2. Propeller Shaft

1. Suspension
A: SPECIFICATIONS
1. STABILIZER
ModelBar dia. mm (in)
Front Rear
Sedan2200 cc 19 (0.75) 15 (0.59)
2500 cc 20 (0.79) 16 (0.63)
Wagon2200 cc 19 (0.75) 15 (0.59)
2500 cc 20 (0.79) 16 (0.63)
OUTBACK2200 cc 20 (0.79) 18 (0.71)
2500 cc 20 (0.79) 18 (0.71)
B: WHEEL ALIGNMENT
Sedan Wagon OUTBACK
FWD AWD FWD AWD AWD
FrontCamber
(tolerance: ±0°30′)0°05′0°05′0°05′0°05′0°20′
Caster
(tolerance: ±1°)3°05′3°05′3°05′3°05′2°50′
Toe-in mm (in) 0±3 (0±0.12) Total toe angle: 0°±20′
Kingpin angle (tolerance: ±1°) 14°15′14°15′14°15′14°15′13°30′
Wheel arch height
[tolerance:
+12
24mm (+0.47
0.94in)] mm (in)385 (15.16) 385 (15.16) 385 (15.16) 385 (15.16) 420 (16.54)
RearCamber
(tolerance: ±0°45′)0°55′1° 0°45′0°55′0°35′
Toe-in mm (in) 0±3 (0±0.12) Total toe angle: 0°±20′
Wheel arch height
[tolerance:
+12
24mm (+0.47
0.94in)] mm (in)369 (14.53) 369 (14.53) 379 (14.92) 379 (14.92) 419 (16.50)
Thrust angle 0°±20′
2
4-1SPECIFICATIONS AND SERVICE DATA
1. Suspension

1. On-car Services
A: WHEEL ALIGNMENT
Check, adjust and/or measure wheel alignment in accor-
dance with procedures indicated below:
1. Wheel arch height (Front and rear)
2. Camber (Front and rear)
3. Caster (Front)
4. Front toe-in
5. Rear toe-in
6. Thrust angle (Rear)
7. Wheel steering angle






7
4-1SERVICE PROCEDURE
1. On-car Services

B4M0567A
2. CAMBER AND CASTER

Inspection
1) Place front wheel on turning radius gauge. Make sure
ground contacting surfaces of front and rear wheels are set
at the same height.
2) Set ST into the center of the wheel, and then install the
wheel alignment gauge.
ST 927380000 ADAPTER
NOTE:
Refer to the“SPECIFICATIONS AND SERVICE DATA”for
the camber and caster values.

Front camber adjustment
1) Loosen two self-locking nuts located at lower front por-
tion of strut.
CAUTION:

When adjusting bolt needs to be loosened or
tightened, hold its head with a wrench and turn self-
locking nut.

Discard loosened self-locking nut and replace with a
new one.
B4M0189A
2) Turn camber adjusting bolt so that camber is set at the
specification.
NOTE:
Moving the adjusting bolt by one scale graduation changes
camber by approximately 0°10′.
9
4-1SERVICE PROCEDURE
1. On-car Services

G4M0497
4) Connect stabilizer link to transverse link, and tempo-
rarily tighten bolts.
CAUTION:
Discard loosened self-locking nut and replace with a
new one.
5) Tighten the following points in the order shown below
when wheels are in full contact with the ground and vehicle
is at curb weight condition.
(1) Transverse link and stabilizer link
Tightening torque:
29±5 N⋅m (3.0±0.5 kg-m, 21.7±3.6 ft-lb)
(2) Transverse link and crossmember
Tightening torque:
98±15 N⋅m (10.0±1.5 kg-m, 72±11 ft-lb)
G4M0928
(3) Transverse link rear bushing and body
Tightening torque:
245±49 N⋅m (25±5 kg-m, 181±36 ft-lb)
NOTE:

Move rear bushing back and forth until transverse link-
to-rear bushing clearance is established (as indicated in
figure.) before tightening.

Check wheel alignment and adjust if necessary.
19
4-1SERVICE PROCEDURE
2. Front Transverse Link

G4M0511
7) Pull the piston rod fully upward, and install rubber seat
and spring seat.
NOTE:
Ensure that upper spring seat is positioned with“OUT”
mark facing outward.
8) Install strut mount to the piston rod, and tighten the
self-locking nut temporarily.
CAUTION:
Be sure to use a new self-locking nut.
G4M0507
9) Using hexagon wrench to prevent strut rod from turning,
tighten self-locking nut with ST.
Tightening torque:
54±5 N⋅m (5.5±0.5 kg-m, 39.8±3.6 ft-lb)
ST 927760000 STRUT MOUNT SOCKET
10) Loosen the coil spring carefully.
E: INSTALLATION
1) Install strut mount at upper side of strut to body and
tighten with nuts.
Tightening torque:
20±6 N⋅m (2.0±0.6 kg-m, 14.5±4.3 ft-lb)
2) Connect housing to lower side of strut.
3) Position aligning mark on camber adjusting bolt with
aligning mark on lower side bracket of strut.
CAUTION:

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

Be sure to use new self-locking nut.
Tightening torque:
152±20 N⋅m (15.5±2.0 kg-m, 112±14 ft-lb)
4) Install A.B.S. sensor harness to strut. (A.B.S. equipped
models.)
Tightening torque:
152±20 N⋅m (15.5±2.0 kg-m, 112±14 ft-lb)
5) Install brake hose at lower side of strut with clamp.
G4M0503
6) Install union bolts which secure brake caliper to brake
hose.
Tightening torque:
18±3 N⋅m (1.8±0.3 kg-m, 13.0±2.2 ft-lb)
CAUTION:
Be sure to bleed air from brake system.
7) Install wheels.
NOTE:
Check wheel alignment and adjust if necessary.
25
4-1SERVICE PROCEDURE
4. Front Strut

G4M0520
6. Front Crossmember
A: REMOVAL
1) Disconnect ground cable from battery.
2) Loosen front wheel nuts.
3) Lift-up vehicle, and remove front tires and wheels.
4) Remove both stabilizer and jack-up plate.
5) Disconnect tie-rod end from housing.
6) Remove front exhaust pipe.
G4M0521
7) Remove front transverse link from front crossmember
and body.
8) Remove nuts attaching engine mount cushion rubber to
crossmember.
9) Remove self-locking nuts connecting steering U/J and
pinion shaft.
10) Lift engine by approx. 10 mm (0.39 in) by using chain
block.
11) Support crossmember with a jack, remove nuts secur-
ing crossmember to body and lower crossmember gradu-
ally along with steering gearbox.
CAUTION:
When removing crossmember downward, be careful
that tie-rod end does not interfere with DOJ boot.
B: INSTALLATION
1) Installation is in the reverse order of removal proce-
dures.
CAUTION:
Always tighten rubber bushing when wheels are in full
contact with the ground and vehicle is at curb weight
condition.
Tightening torque:
Transverse link bushing to crossmember:
98±15 N⋅m (10.0±1.5 kg-m, 72±11 ft-lb)
Stabilizer to bushing:
25±4 N⋅m (2.5±0.4 kg-m, 18.1±2.9 ft-lb)
Tie-rod end to housing:
27.0±2.5 N⋅m (2.75±0.25 kg-m, 19.9±1.8 ft-lb)
Front cushion rubber to crossmember:
69±15 N⋅m (7.0±1.5 kg-m, 51±11 ft-lb)
Universal joint to pinion shaft:
24±3 N⋅m (2.4±0.3 kg-m, 17.4±2.2 ft-lb)
Crossmember to body:
98±15 N⋅m (10.0±1.5 kg-m, 72±11 ft-lb)
2) Purge air from power steering system.
NOTE:
Check wheel alignment and adjust if necessary.
28
4-1SERVICE PROCEDURE
6. Front Crossmember

B4M0196A
3) Turn trailing link upside down. Press ST plunger in the
direction opposite that outlined in step 2) until bushing is
correctly positioned in trailing link.
ST 927730000 INSTALLER & REMOVER SET
E: INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Always tighten rubber bushing location when wheels
are in full contact with the ground and vehicle is at
curb weight condition.
NOTE:
Check wheel alignment and adjust if necessary.
33
4-1SERVICE PROCEDURE
7. Rear Trailing Link

G4M0529
1. FWD MODEL
1) Loosen wheel nuts. Lift-up vehicle and remove wheel.
2) Remove rear exhaust pipe and muffler.
3) Remove stabilizer link from rear lateral link.
4) Scribe an aligning mark on adjusting bolt, adjusting
wheel and crossmember.
5) Remove bolts securing lateral links to housing.
6) Turn cap (lateral link) counterclockwise until it contacts
stopper, then remove cap.
7) While holding adjusting bolt’s head with a wrench,
loosen self-locking nut.
CAUTION:
Always loosen self-locking nut before turning adjust-
ing bolt.
8) Lateral link removal
(1) Left lateral links
Remove adjusting bolt and front and rear lateral links.
(2) Right lateral links
Support crossmember with transmission jack.
Remove bolts securing crossmember to vehicle body.
Lower transmission jack until adjusting bolt can be
removed. Remove adjusting bolt, front and rear lateral
links.
2. AWD MODEL
1) Loosen wheel nuts. Lift-up vehicle and remove wheel.
2) Remove stabilizers link from lateral link.
3) Remove A.B.S. sensor harness from trailing link.
(A.B.S. equipped models.)
B4M0573A
4) Remove bolt securing trailing link to housing.
5) Remove DOJ from differential.
6) Scribe an alignment mark on rear lateral link adjusting
bolt and crossmember.
7) Remove bolt securing lateral link to housing.
8) Remove bolts securing front and rear lateral links to
crossmember, detach lateral links.
CAUTION:
To loosen adjusting bolt, always loosen nut while hold-
ing the head of adjusting bolt.
35
4-1SERVICE PROCEDURE
8. Lateral Link