SUBARU LEGACY 1999 Service Repair Manual

2. CAMBER (FRONT AND REAR)
IInspection
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
B4M0567A
NOTE:
Refer to the ªSPECIFICATIONS AND SERVICE
DATAº for the camber values. <Ref. to 4-1 [S200].>
IFront Camber Adjustment
1) Loosen two self-locking nuts located at lower
front portion of strut.
CAUTION:
IWhen adjusting bolt needs to be loosened or
tightened, hold its head with a wrench and turn
self-locking nut.
IDiscard loosened self-locking nut and
replace with a new one.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 0É10¢.
B4M0189A
Left side Right side
Camber is increased.
B4M0190
Rotate counterclock-
wise.
B4M0350
Rotate clockwise.
Camber is decreased.
B4M0350
Rotate clockwise.
B4M0190
Rotate counterclock-
wise.
3) Tighten the two self-locking nuts.Tightening torque:
152
±20 N´m (15.5±2.0 kg-m, 112±14 ft-lb)
9
[W1B2]4-1SERVICE PROCEDURE
1. On-car Services

3. CASTER (FRONT)
IInspection
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
B4M0567A
NOTE:
Refer to the ªSPECIFICATIONS AND SERVICE
DATAº for the caster value. <Ref. to 4-1 [S200].>
4. FRONT WHEEL TOE-IN
IInspection
1) Using a toe gauge, measure front wheel toe-in.
Toe-in:
0
±3mm(±0.12 in)
2) Mark rear sides of left and right tires at height
corresponding to center of spindles and measure
distance ªBº between marks.
3) Move vehicle forward so that marks line up with
front sides at height corresponding to center of
spindles.
4) Measure distance ªAº between left and right
marks. Toe-in can then be obtained by the follow-
ing equation:
B þ A = Toe-in
H4M1279
IAdjustment
1) Loosen the left and right side steering tie-rods
lock nuts.
2) Turn the left and right tie rods equal amounts
until the toe-in is at the specification.
Both the left and right tie-rods are right-hand
threaded. To increase toe-in, turn both tie-rods
clockwise equal amounts (as viewed from the
inside of the vehicle).
G4M0482
3) Tighten tie-rod lock nut.
Tightening torque:
83
±5 N´m (8.5±0.5 kg-m, 61.5±3.6 ft-lb)
CAUTION:
Correct tie-rod boot, if it is twisted.
NOTE:
Check the left and right wheel steering angle is
within specifications.
10
4-1[W1B3]SERVICE PROCEDURE
1. On-car Services

5. REAR WHEEL TOE-IN
IInspection
1) Using a toe-in gauge, measure rear wheel toe-
in.
Toe-in:
0
±3mm(±0.12 in)
2) Mark rear sides of left and right tires at height
corresponding to center of spindles and measure
distance ªBº between marks.
3) Move vehicle forward so that marks line up with
front sides at height corresponding to center of
spindles.
4) Measure distance ªAº between left and right
marks. Toe-in can then be obtained by the follow-
ing equation:
B þ A = Toe-in
H4M1279
IAdjustment
1) Loosen self-locking nut on inner side of rear
lateral link.
CAUTION:
IWhen loosening or tightening adjusting bolt,
hold bolt head and turn self-locking nut.
IDiscard loosened self-locking nut and
replace with a new one.
G4M0486
2) Turn adjusting bolt head until toe-in is at the
specification.
NOTE:
When left and right wheels are adjusted for toe-in
at the same time, the movement of one scale
graduation changes toe-in by approximately 3 mm
(0.12 in).
Left side Right side
Toe-in is increased.
B4M0192
Rotate clockwise.
B4M0352
Rotate counterclock-
wise.
Toe-in is decreased.
B4M0352
Rotate counterclock-
wise.
B4M0192
Rotate clockwise.
3) Tighten self-locking nut.
Tightening torque:
98
±15 N´m (10±1.5 kg-m, 72±11 ft-lb)
11
[W1B5]4-1SERVICE PROCEDURE
1. On-car Services

6. THRUST ANGLE
IInspection
1) Position vehicle on a level surface.
2) Move vehicle 3 to 4 meters directly forward.
3) Determine locus of both front and rear axles.
4) Measure distance ªLº between center line of
loci of the axles.
Thrust angle:
Less than 20
¢when ªLº is equal to or
less than 15 mm (0.59 in).
G4M0488
IAdjustment
1) Make thrust angle adjustments by turning toe-in
adjusting bolts of rear suspension equally in the
same direction.
2) When one rear wheel is adjusted in a toe-in
direction, adjust the other rear wheel equally in
toe-out direction, in order to make thrust angle
adjustment.
3) When left and right adjusting bolts are turned
incrementally by one graduation in the same
direction, the thrust angle will change approxi-
mately 10' [ªLº is almost equal to 7.5 mm (0.295
in)].
Thrust angle:
0É
±20¢
G4M0488
12
4-1[W1B6]SERVICE PROCEDURE
1. On-car Services

NOTE:
Thrust angle refers to a mean value of left and right
rear wheel toe angles in relation to vehicle body
center line. Vehicle is driven straight in the thrust
angle direction while swinging in the oblique direc-
tion depending on the degree of the mean thrust
angle.
B4M0193A
Thrust angle:r=(aþb)/2
a: Right rear wheel toe angle
b: Left rear wheel toe angle
B4M0194A
NOTE:
Here, use only positive toe-in values from each
wheel to substitute foraandbin the equation.
7. STEERING ANGLE
IInspection
1) Place vehicle on a turning radius gauge.
2) While depressing brake pedal, turn steering
wheel fully to the left and right. With steering wheel
held at each fully turned position, measure both the
inner and outer wheel steering angle.
ModelSteering angle
Inner wheel Outer wheel
Except both SUS
& OUTBACK37.6ɱ1.5É 32.6ɱ1.5É
SUS & OUTBACK 34.4ɱ1.5É 30.2ɱ1.5É
IAdjustment
Turn tie-rod to adjust steering angle of both inner
and outer wheels.
CAUTION:
ICheck toe-in.
ICorrect boot if it is twisted.
G4M0482
13
[W1B7]4-1SERVICE PROCEDURE
1. On-car Services

2. Front Transverse Link
A: REMOVAL
B4M1084A
(1) Front crossmember
(2) Transverse link
(3) Stabilizer link
(4) Front stabilizer
(5) Self-locking nutTightening torque: N´m (kg-m, ft-lb)
T1:
29±5 (3.0±0.5, 21.7±3.6)
T2:44±6 (4.5±0.6, 32.5±4.3)
T3:98±15 (10.0±1.5, 72±11 )
T4:186±10 (19.0±1.0, 137±7)
T5:245±49 (25.0±5.0, 181±36)
1) Disconnect stabilizer link from transverse link.
2) Remove bolt securing ball joint of transverse
link to housing.
G4M0491
3) Remove nut (do not remove bolt.) securing
transverse link to crossmember.4) Remove two bolts securing bushing bracket of
transverse link to vehicle body at rear bushing
location.
G4M0492
5) Extract ball joint from housing.
14
4-1[W2A0]SERVICE PROCEDURE
2. Front Transverse Link

6) Remove bolt securing transverse link to cross-
member and extract transverse link from cross-
member.
G4M0493
B: DISASSEMBLY
1. FRONT BUSHING
Using ST, press front bushing out of place.
ST 927680000 INSTALLER & REMOVER SET
G4M0494
2. REAR BUSHING
1) Scribe an aligning mark on transverse link and
rear bushing.
G4M0495
2) Loosen nut and remove rear bushing.
C: INSPECTION
1) Check transverse link for wear, damage and
cracks, and correct or replace if defective.
2) Check bushings for cracks, wear, damage and
creeping.
3) Check rear bushing for oil leaks.4) If defective, replace with new one.
D: ASSEMBLY
1. FRONT BUSHING
To reassemble, reverse disassembly procedures.
CAUTION:
Install front bushing in correct direction, as
shown in figure.
G4M0496
2. REAR BUSHING
1) Install rear bushing to transverse link and align
aligning marks scribed on the two.
2) Tighten self-locking nut.
CAUTION:
IDiscard loosened self-locking nut and
replace with a new one.
IWhile holding rear bushing so as not to
change position of aligning marks, tighten self-
locking nut.
Tightening torque:
186
±10 N´m (19.0±1.0 kg-m, 137±7 ft-lb)
E: INSTALLATION
1) Temporarily tighten the two bolts used to secure
rear bushing of the transverse link to body.
NOTE:
These bolts should be tightened to such an extent
that they can still move back and forth in the oblong
shaped hole in the bracket (which holds the bush-
ing).
2) Install bolts used to connect transverse link to
crossmember and temporarily tighten with nut.
CAUTION:
Discard loosened self-locking nut and replace
with a new one.
3) Insert ball joint into housing.
15
[W2E0]4-1SERVICE PROCEDURE
2. Front Transverse Link

4) Connect stabilizer link to transverse link, and
temporarily tighten bolts.
CAUTION:
Discard loosened self-locking nut and replace
with a new one.
G4M0497
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
±15N´m (10.0±1.5 kg-m, 72±11 ft-lb)
(3) Transverse link rear bushing and body
Tightening torque:
245
±49 N´m (25±5 kg-m, 181±36 ft-lb)
NOTE:
IMove rear bushing back and forth until trans-
verse link-to-rear bushing clearance is established
(as indicated in figure.) before tightening.
ICheck wheel alignment and adjust if necessary.
G4M0928
3. Front Ball Joint
A: REMOVAL
1) Remove the wheel.
2) Pull out the cotter pin from the ball stud, remove
the castle nut, and extract the ball stud from the
transverse link.
3) Remove the bolt securing the ball joint to the
housing.
G4M0499
4) Extract the ball joint from the housing.
B: INSPECTION
1) Measure play of ball joint by the following pro-
cedures. Replace with a new one when the play
exceeds the specified value.
(1) With 686 N (70 kg, 154 lb) loaded in the
direction shown in the figure, measure dimen-
sion
1.
G4M0500
(2) With 686 N (70 kg, 154 lb) loaded in the
opposite direction shown in the figure, measure
dimension
2.
G4M0501
16
4-1[W3A0]SERVICE PROCEDURE
3. Front Ball Joint

4) Connect stabilizer link to transverse link, and
temporarily tighten bolts.
CAUTION:
Discard loosened self-locking nut and replace
with a new one.
G4M0497
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
±15N´m (10.0±1.5 kg-m, 72±11 ft-lb)
(3) Transverse link rear bushing and body
Tightening torque:
245
±49 N´m (25±5 kg-m, 181±36 ft-lb)
NOTE:
IMove rear bushing back and forth until trans-
verse link-to-rear bushing clearance is established
(as indicated in figure.) before tightening.
ICheck wheel alignment and adjust if necessary.
G4M0928
3. Front Ball Joint
A: REMOVAL
1) Remove the wheel.
2) Pull out the cotter pin from the ball stud, remove
the castle nut, and extract the ball stud from the
transverse link.
3) Remove the bolt securing the ball joint to the
housing.
G4M0499
4) Extract the ball joint from the housing.
B: INSPECTION
1) Measure play of ball joint by the following pro-
cedures. Replace with a new one when the play
exceeds the specified value.
(1) With 686 N (70 kg, 154 lb) loaded in the
direction shown in the figure, measure dimen-
sion
1.
G4M0500
(2) With 686 N (70 kg, 154 lb) loaded in the
opposite direction shown in the figure, measure
dimension
2.
G4M0501
16
4-1[W3A0]SERVICE PROCEDURE
3. Front Ball Joint

(3) Calculate plays from the following formula.
S=
2þ1(4) When plays are larger than the following
value, replace with a new one.
FRONT BALL JOINT
Specified play for replacement:
Less than 0.3 mm (0.012 in)
2) When play is smaller than the specified value,
visually inspect the dust cover.
3) If the dust cover is damaged, replace with the
new ball joint.
4) Check ball joint for damage and cracks. If
defective, replace with new one.
C: INSTALLATION
1) Install ball joint onto housing.
Torque (Bolt):
49
±10 N´m (5.0±1.0 kg-m, 36±7 ft-lb)
CAUTION:
Do not apply grease to tapered portion of ball
stud.
2) Connect ball joint to transverse link.
Torque (Castle nut):
39 N´m (4.0 kg-m, 29 ft-lb)
3) Retighten castle nut further within 60É until a
slot in castle nut is aligned with the hole of ball stud
end, then insert new cotter pin and bend it around
castle nut.
4) Install front wheel.
17
[W3C0]4-1SERVICE PROCEDURE
3. Front Ball Joint