Page 649 of 2248

C: INSPECTION
1) Clean all disassembled parts, and check for wear,
damage, or any other faults, then repair or replace as nec-
essary.
2) When disassembling, check inside of gearbox for water.
If any water is found, carefully check boot for damage,
input shaft dust seal, adjusting screw and boot clips for
poor sealing. If faulty, replace with new parts.
No. Parts Inspection Corrective action
1 Input shaft(1) Bend of input shaft
(2) Damage on serrationIf bend or damage is excessive, replace
entire gearbox.
2 Dust seal(1) Crack or damage
(2) WearIf outer wall slips, lip is worn out or damage
is found, replace it with new one.
3 Rack and pinion Poor mating of rack with pinion(1) Adjust backlash properly.
By measuring turning torque of
gearbox and sliding resistance of rack,
check if rack and pinion engage
uniformly and smoothly with each
other.
(Refer to“Service limit”.)
(2) Keeping rack pulled out all the way so
that all teeth emerge, check teeth for
damage.
Even if abnormality is found in either
(1) or (2), replace entire gearbox.
4 Gearbox unit(1) Bend of rack shaft
(2) Bend of cylinder portion
(3) Crack or damage on cast iron portionReplace gearbox with new one.
(4) Wear or damage on rack bushIf free play of rack shaft in radial direction is
out of the specified range, replace gearbox
with new one. (Refer to“Service limit”.)
(5) Wear on input shaft bearingIf free plays of input shaft in radial and axial
directions are out of the specified ranges,
replace gearbox with new one.
(Refer to“Service limit”.)
5 Boot Crack, damage or deterioration Replace.
6 Tie-rod(1) Looseness of ball joint
(2) Bend of tie-rodReplace.
7 Tie-rod end Damage or deterioration on dust seal Replace.
8 Adjusting screw spring Deterioration Replace.
9 Boot clip Deterioration Replace.
10 Sleeve Damage Replace.
11 Pipes(1) Damage to flared surface
(2) Damage to flare nut
(3) Damage to pipe
(4) Damage to O-ringReplace.
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4-3SERVICE PROCEDURE
4. Steering Gearbox (Power Steering System) [RHD model]
Page 650 of 2248

G4M0796
G4M0797
1. SERVICE LIMIT
Make a measurement as shown in the figures. If it exceeds
the specified service limit, adjust or replace.
NOTE:
When making a measurement, vise gearbox by using ST.
Never vise gearbox by inserting aluminum plates, etc.
between vise and gearbox.
ST 926200000 STAND
Sliding resistance of rack shaft:
Service limit
304 N (31 kg, 68 lb) or less
Difference between left and right sliding resistance
Less than 20%
G4M0798
2. RACK SHAFT PLAY IN RADIAL DIRECTION
Right-turn steering:
Service limit
Less than 0.4 mm (0.016 in) (direction
)
Less than 0.6 mm (0.024 in) (direction
)
On condition
L: 5 mm (0.20 in)
P: 98 N (10 kg, 22 lb)
G4M0799
Left-turn steering:
Service limit
Less than 0.4 mm (0.016 in)
(direction
and)
On condition
L: 5 mm (0.20 in)
P: 98 N (10 kg, 22 lb)
G4M0800
3. INPUT SHAFT PLAY
In radial direction:
Service limit
0.18 mm (0.0071 in) or less
On condition
P: 98 N (10 kg, 22 lb)
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4-3SERVICE PROCEDURE
4. Steering Gearbox (Power Steering System) [RHD model]
Page 651 of 2248

G4M0801
In axial direction:
Service limit
0.27 mm (0.0106 in) or less
On condition
P: 20—49N(2—5 kg, 4—11 lb)
G4M0802
4. TURNING RESISTANCE OF GEARBOX
Using ST, measure gearbox turning resistance.
ST 926230000 SPANNER
Service limit:
Straight-ahead position within 30 mm (1.18 in)
from rack center
Less than 11.18 N (1.14 kg, 2.51 lb)
Maximum allowable resistance
15.79 N (1.61 kg, 3.55 lb) or less
Difference between left and right sliding resistance:
Less than 20%
D: ASSEMBLY
CAUTION:
Use only SUBARU genuine grease for gearbox.
Specified grease for gearbox:
VALIANT GREASE M2 (Part No. 003608001)
1) Clean all parts and tools before reassembling.
2) Move rack shaft fully to the left and right two or three
times to lubricate shaft ends with grease. Remove excess
grease, being careful not to block air vent hole.
CAUTION:
When rack is fully moved to its stroke ends with tie-
rod removed, be careful not to bump rack ends.
Ensure that screw located at end of rack shaft is free
from grease.
3) Apply grease to bore wall which accommodates sleeve.
CAUTION:
Ensure that hands are clean when applying grease.
35
4-3SERVICE PROCEDURE
4. Steering Gearbox (Power Steering System) [RHD model]
Page 652 of 2248

G4M0803
4) Apply a coat of grease to sliding surface of sleeve and
seating surface of spring, and insert sleeve into steering
body. Charge adjusting screw with grease, insert spring
into adjusting screw and install on steering body.
1Sleeve
2Seat
3Spring
4Adjusting screw
5Lock nut
G4M0804
5) Installation of tie-rod
(1) Tighten adjusting screw until it will no longer
tighten.
(2) Install lock washers and tighten left and right tie-
rods into rack ends.
On condition
L: Approximately 40 mm (1.57 in)
Tightening torque:
78±10 N⋅m (8.0±1.0 kg-m, 58±7 ft-lb)
G4M0805
(3) The left and right tie-rod differ as indicated in the
table below.
Right tie-rod
(pinion side)No air vent hole provided.Grooved.
(for identification)
Left tie-rod
(cylinder side)Air vent hole provided.Not grooved.
(for identification)
G4M0806
6) Using a chisel and hammer, bend lock washers (at two
places).
CAUTION:
Be careful not to scratch rack.
G4M0807
7) Rack and pinion backlash adjustment
(1) Loosen adjusting screw three to four turns.
(2) Rotate input shaft so that rack is in the straight
ahead direction. [Ensure that distance between rack
end and stopper is 70.8 mm (2.787 in).]
(3) Tighten adjusting screw by two threads.
36
4-3SERVICE PROCEDURE
4. Steering Gearbox (Power Steering System) [RHD model]
Page 653 of 2248

G4M0662
(4) Turn adjusting screw so that the entire thread area
is coated with liquid packing.
Liquid packing:
THREE BOND 1102 or equivalent
NOTE:
Apply liquid packing of approximately 1.5 grams (0.053
oz) to adjusting screw thread area.
Also turn plug to ensure that its entire contact area is
coated with liquid packing.
G4M0808
(5) Tighten adjusting plug to 5 N⋅m (0.5 kg-m, 3.6 ft-lb)
and loosen, then tighten to 5 N⋅m (0.5 kg-m, 3.6 ft-lb)
and loosen, and finally tighten to 5 N⋅m (0.5 kg-m, 3.6
ft-lb) and loosen 26°.
(6) While holding adjusting plug using a closed
wrench, tighten lock nut using ST.
ST 926300000 SPANNER
Tightening torque:
39±10 N⋅m (4±1 kg-m, 29±7 ft-lb)
CAUTION:
Do not allow liquid packing to come in contact with
sleeve.
While rotating input shaft to fully move rack shaft to
the left and right, ensure that rack moves smoothly
without binding, and that rotating torque is constant.
8) Installation of boot
(1) Apply a coat of grease to inner wall of boot small
end.
(2) Position boot large end in rubber mount groove and
gearbox, and small end in groove of tie-rod.
CAUTION:
Ensure that both ends of boot are properly situated
in grooves.
Ensure that boot is free from abnormal swelling or
dents.
G4M0790
9) Attach lock wire to boot large end, and twist it while
pulling it upward with a force of approximately 39±10 N
(4±1 kg, 9±2 lb).
ST 927590000 WRENCH
CAUTION:
Ensure that lock wire is not loose.
37
4-3SERVICE PROCEDURE
4. Steering Gearbox (Power Steering System) [RHD model]
Page 654 of 2248
G4M0810
10) Then bend wire end along boot as shown.
G4M0812
11) Install clip using pliers.
CAUTION:
After installing clip, ensure that boot’s small end is
properly positioned in groove on tie-rod.
12) Install pipes A and B.
Tightening torque:
20±4 N⋅m (2.0±0.4 kg-m, 14.5±2.9 ft-lb)
G4M0132
E: INSTALLATION
Installation is in the reverse order of removal.
Do the following:
CAUTION:
When adjusting toe-in, hold boot as shown to prevent
it from being rotated or twisted. If twisted, straighten it.
G4M0133
F: ADJUSTMENT
1) Adjust front toe.
Standard of front toe:
IN 3—OUT 3 mm (IN 0.12—OUT 0.12 in)
38
4-3SERVICE PROCEDURE
4. Steering Gearbox (Power Steering System) [RHD model]
Page 655 of 2248
2) Adjust steering angle of wheels.
Standard of steering angle:
Inner wheel 37.6°±1.5°
Outer wheel 32.6°±1.5°
B4M0133A
3) If steering wheel spokes are not horizontal when wheels
are set in the straight ahead position, and error is more
than 5°on the periphery of steering wheel, correctly re-in-
stall the steering wheel.
G4M0135
4) If steering wheel spokes are not horizontal with vehicle
set in the straight ahead position after this adjustment,
correct it by turning the right and left tie-rods in the same
direction by the same amount.
39
4-3SERVICE PROCEDURE
4. Steering Gearbox (Power Steering System) [RHD model]
Page 656 of 2248
![SUBARU LEGACY 1995 Service Repair Manual 5. Control Valve (Power Steering
Gearbox) [LHD model]
NOTE:
This section focuses on the disassembly and reassembly
of control valve. For the inspection and adjustment and the
service procedures for as SUBARU LEGACY 1995 Service Repair Manual 5. Control Valve (Power Steering
Gearbox) [LHD model]
NOTE:
This section focuses on the disassembly and reassembly
of control valve. For the inspection and adjustment and the
service procedures for as](/manual-img/17/57432/w960_57432-655.png)
5. Control Valve (Power Steering
Gearbox) [LHD model]
NOTE:
This section focuses on the disassembly and reassembly
of control valve. For the inspection and adjustment and the
service procedures for associated parts, refer to“Steering
Gearbox”.
G4M0136
1Power cylinder
2Cylinder
3Rack piston
4Rack axle
5Input shaft
6Torsion bar
7Valve housing
8Valve body
9Control valve
10Pipe B
11Pipe A
12Pinion
13Pinion axle
A: CHECKING OIL LEAKING POINTS
1. OIL LEAKING POINTS
1) If leak point is other than a, b, c, or d, perform check
step 5) in [W5A2] before dismounting gearbox from
vehicle. If gearbox is dismounted without confirming where
the leak is, it must be mounted again to locate the leak
point.
2) Even if the location of the leak can be easily found by
observing the leaking condition, it is necessary to thor-
oughly remove the oil from the suspected portion and turn
the steering wheel from lock to lock about 30 to 40 times
with engine running, then make comparison of the sus-
pected portion between immediately after and several
hours after this operation.
3) Before starting oil leak repair work, be sure to clean the
gearbox, hoses, pipes, and surrounding parts. After com-
pleting repair work, clean these areas again.
40
4-3SERVICE PROCEDURE
5. Control Valve (Power Steering Gearbox) [LHD model]