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Subaru Legacy III (2000-2003 year). Manual - part 840

PS-48

POWER ASSISTED SYSTEM (POWER STEERING)

STEERING GEARBOX [LHD MODEL]

4. INPUT SHAFT PLAY

In radial direction:

Service limit

0.18 mm (0.0071 in) or less

On condition

P: 98 N (10 kgf, 22 lb)

In axial direction:

Service limit

0.5 mm (0.020 in) or less

On condition

P: 20 — 49 N (2 — 5 kgf, 4 — 11 lb)

5. 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 kgf, 2.51 lb)

Maximum allowable resistance

12.7 N (1.3 kgf, 2.9 lb)

PS-00103

PS-00104

PS-00105

PS-49

POWER ASSISTED SYSTEM (POWER STEERING)

STEERING GEARBOX [LHD MODEL]

6. OIL LEAKING

• Oil leaking points

1) If leak point is other than a, b, c, or d, perform the
5th step in “Oil leak check procedure and replace-
ment parts” before dismounting gearbox from vehi-
cle. <Ref. to “Oil leak check procedure and
replacement parts”.> 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 nec-
essary to thoroughly remove the oil from the sus-
pected portion and turn the steering wheel from
lock to lock about 30 to 40 times with engine run-
ning, then make comparison of the suspected por-
tion 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 completing repair work, clean these ar-
eas again.
• Oil leak check procedure and replacement
parts

NOTE:
Parts requiring replacement are described in the
smallest unit of spare parts including damaged
parts and spare parts damaged. In actual disas-
sembly work, accidental damage as well as inevita-
ble damage to some related parts must be taken
into account, and spare parts for them must also be
prepared. However, it is essential to pinpoint the
cause of trouble, and limit the number of replace-
ment parts as much as possible.
1) Leakage from “a”
The oil seal is damaged. Replace valve assembly
with a new one.
2) Leakage from “b”
The torsion bar O-ring is damaged. Replace valve
assembly with a new one.
3) Leakage from “c”
The oil seal is damaged. Replace valve assembly
or oil seal with a new one.
4) Leakage from “d”
The pipe is damaged. Replace the faulty pipe or O-
ring.

(1) Power cylinder

(3) Rack piston

(5) Input shaft

(2) Cylinder

(4) Rack axle

(6) Valve housing

PS-00175

( 1 )

( 5 )

( 6 )

( 2 )

( 3 )

( 4 )

PS-50

POWER ASSISTED SYSTEM (POWER STEERING)

STEERING GEARBOX [LHD MODEL]

5) If leak is other than a, b, c, or d, and if oil is leak-
ing from the gearbox, move the right and left boots
toward tie-rod end side, respectively, with the gear-
box mounted to the vehicle, and remove oil from
the surrounding portions. Then, turn the steering
wheel from lock to lock 30 to 40 times with the en-
gine running, then make comparison of the leaked
portion immediately after and several hours after
this operation.

(1) Leakage from “e”
The cylinder seal is damaged. Replace rack
bush with a new one.
(2) Leakage from “f”
There are two possible causes. Take following
step first. Remove the pipe assembly B from the
valve housing, and close the circuit with ST.

926420000

PLUG

Turn the steering wheel from lock to lock 30 to
40 times with the engine running, then make
comparison of the leaked portion between im-
mediately after and several hours after this op-
eration.

CAUTION:
• If leakage from “f” is noted again:
The oil seal of pinion and valve assembly is
damaged. Replace pinion and valve assembly
with a new one. Or replace the oil seal and the
parts that are damaged during disassembly
with new ones.
• If oil stops leaking from “f”:
The oil seal of rack housing is damaged. Re-
place the oil seal and the parts that are dam-
aged during disassembly with new ones.

F: ADJUSTMENT

1) Adjust front toe.

Standard of front toe:

IN 3 — OUT 3 mm (IN 0.12 — OUT 0.12 in)

2) Adjust steering angle of wheels.

Standard of steering angle:

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-install the steering wheel.

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 turns.

(1) Lock nut

PS-00107

( 1 )

Model

Except OUTBACK

OUTBACK

Inner wheel

36.3

°±

1.5

°°°°

34.5

°±

1.5

°°°°

Outer wheel

31.6

°±

1.5

°°°°

30.3

°±

1.5

°°°°

PS-00108

0 – 17 mm
(0 – 0.67 in)

PS-00273

PS-51

POWER ASSISTED SYSTEM (POWER STEERING)

STEERING GEARBOX [RHD MODEL]

6. Steering Gearbox [RHD Mod-

el]

A: REMOVAL

1) Set the vehicle on the lift.
2) Disconnect battery ground cable.
3) Remove air intake duct.
4) Disconnect connector from O

sensor. (If

equipped.)

WARNING:
Be careful as exhaust pipe is hot.

5) Raise vehicle with a jack and remove front
wheel.
6) Disconnect front exhaust pipe assembly.
7) Remove cotter pin and castle nut. Using a puller,
remove tie-rod end from knuckle arm.

8) Remove jack-up plate.

9) Remove front stabilizer. <Ref. to FS-21, RE-
MOVAL, Front Stabilizer.>

10) Disconnect one pipe joint A from center of
gearbox assembly, and connect a vinyl hose to it.
While turning steering wheel to the left and right,
drain fluid through the hose. Similarly, drain fluid
from the other pipe joint B.

11) Remove universal joint. <Ref. to PS-25, RE-
MOVAL, Universal Joint.>
12) Remove flare nuts from control valve of gear-
box assembly, and disconnect pipe C and D.

CAUTION:
• Always disconnect pipes C and D in that or-
der.
• Be careful not to damage the hoses during re-
moval.
13) Remove clamp bolts securing gearbox to
crossmember, and detach gearbox.

14) Remove clamp bolts securing gearbox to
crossmember, and detach gearbox.

(1) Castle nut

(2) Tie-rod end

(3) Knuckle arm

(1) Jack-up plate

PS-00043

( 1 )

( 2 )

( 3 )

PS-00044

( 1 )

(1) Pipe A

(2) Pipe B

PS-00287

( 1 )

( 2 )

PS-00288

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