Subaru Legacy 2002 Service Manual page 2272

6. OIL LEAKING
S601276A1006
(1) Power cylinder
(2) Cylinder
¼ 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
replacement parts" before dismounting gearbox
from vehicle. <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
running, then make comparison of the suspected
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 completing repair work, clean these
areas again.
¼ 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 inevi-
table damage to some related parts must be taken
into account, and spare parts for them must also
STEERING GEARBOX [RHD MODEL]
(3) Rack piston
(4) Rack
PS-63
Power Assisted System (Power Steering)
(5) Input shaft
(6) Valve housing
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 oil seal with a
new one.
4) Leakage from "d"
The pipe is damaged. Replace the faulty pipe or
O-ring.
5) If leak is other than a, b, c, or d, and if oil is
leaking from the gearbox, move the right and left
boots toward tie-rod end side, respectively, with the
gearbox mounted to the vehicle, and remove oil
from the surrounding portions. Then, turn the steer-
ing wheel from lock to lock 30 to 40 times with the
engine 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.
B4M2614A