Subaru Legacy (2005 year). Manual - part 843

PS-43

POWER ASSISTED SYSTEM (POWER STEERING)

Steering Gearbox [LHD Model]

2. SERVICE LIMIT

Make a measurement as follows. If it exceeds the
specified service limit, adjust or replace.

NOTE:
When making a measurement, vise the gearbox
using ST. Never vise the gearbox by inserting alu-
minum plates, etc. between vise and gearbox.
ST1

926200000

STAND

ST2

34199AG000 BOSS D

Sliding resistance of rack shaft:

Service limit

400 N (41 kgf, 90 lbf) or less

3. RACK SHAFT PLAY IN RADIAL DIREC-
TION

Right-turn steering:

Service limit

0.19 mm (0.0075 in) or less

On condition

L: 5 mm (0.20 in)
P: 122.6 N (12.5 kgf, 27.6 lbf)

Left-turn steering:

Service limit

Direction  

0.3 mm (0.012 in) or less

Direction  

0.15 mm (0.0059 in) or less

On condition

L: 5 mm (0.20 in)
P: 98 N (10 kgf, 22 lbf)

PS-00099

PS-00100

PS-00101

P

L

PS-00102

L

P

PS-44

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 lbf)

In axial direction:

Service limit

0.5 mm (0.020 in) or less

On condition

P: 20 — 49 N (2 — 5 kgf, 4 — 11 lbf)

5. TURNING RESISTANCE OF GEARBOX

Using the ST, measure the gearbox turning resis-
tance.
ST

34099PA100

SPANNER

Service limit:

Maximum allowable resistance:

10.5 N (1.1 kgf, 2.4 lbf) or less

Difference between right and left turning re-
sistance: 

20% or less

PS-00103

P

PS-00104

P

PS-00105

PS-45

POWER ASSISTED SYSTEM (POWER STEERING)

Steering Gearbox [LHD Model]

6. OIL LEAKAGE

1) Lift-up the vehicle.
2) Even if the location of leak can be easily found
by observing leaking condition, it is necessary to
thoroughly remove fluid from suspected portion
and turn the steering wheel from lock to lock about
30 to 40 times with engine running, then re-inspect
the suspected portion immediately after and sever-
al hours after this operation.
3) Cause and measure for oil leakage from “a”
The oil seal is damaged. Replace the valve assem-
bly with a new one.
4) Cause and measure for oil leakage from “b”.
The torsion bar O-ring is damaged. Replace the
valve assembly with a new one.
5) Cause and measure for oil leakage from “c”.
The oil seal is damaged. Replace the valve assem-
bly or oil seal with a new one.
6) Cause and measure for oil leakage from “d”.
The pipe is damaged. Replace the faulty pipe or O-
ring.
7) Cause and measure for oil leakage from “g”.
The hose is damaged. Replace the hose with a
new one.

8) If leak is other than a, b, c, d or g, or if oil is leak-
ing from gearbox, move the right and left boots to-
ward tie-rod end side, respectively, with the
gearbox mounted to the vehicle, and remove fluid
from surrounding portions. Then, turn the steering
wheel from lock to lock 30 to 40 times with the en-
gine running, then re-inspect the leaked portion im-
mediately after and several hours after this
operation.

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

ST

926420000

PLUG

Turn the steering wheel from lock to lock 30 to
40 times with the engine running, then inspect
the leaked portion immediately after and several
hours after this operation.

• If leakage from “f” is noted again: 
The oil seal of pinion and valve assembly is dam-
aged. Replace the 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. Replace
the oil seal and parts that are damaged during dis-
assembly with new ones.

(1)

Power cylinder

(3)

Rack piston

(5)

Input shaft

(2)

Cylinder

(4)

Rack axle

(6)

Valve housing

PS-00622

(4) (3) (2)

(5)

(6)

c

d

a

b

(1)

f

g

g

d

e

PS-46

POWER ASSISTED SYSTEM (POWER STEERING)

Steering Gearbox [LHD Model]

F: ADJUSTMENT

1) Adjust the front toe.
<Ref. to FS-11, FRONT WHEEL TOE-IN, INSPEC-
TION, Wheel Alignment.>

Standard of front toe:

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

2) Adjust the steering angle of wheels.

Specification of steering angle:

3) If the steering wheel spokes are not horizontal
when wheels are set in the straight ahead position,
or error is more than 5

° on the periphery of steering

wheel, correctly re-install the steering wheel.

4) If the 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 opposite direction each other by
the same angle.

(1) Lock nut

Model

2.0 i, 2.5 i

3.0 R

3.0 R 

spec. B

OUTBACK

Inner 

wheel

37.3

°±1.5° 37.2°±1.5° 37.1°±1.5° 37.8°±1.5°

Outer 

wheel

33.0

°±1.5° 32.9°±1.5° 32.8°±1.5° 33.5°±1.5°

(1) Within 5

°

PS-00107

PS-00513

(1)