Subaru 2001 FORESTER Service Manual page 77

Power Assisted System (Power Steering)
6. OIL LEAKING
S601276A1006
(1) Power cylinder
(2) Cylinder
(3) Rack piston
NOTE:
If gearbox is dismounted without confirming where
the leak is, it must be mounted again to locate the
leak point.
1) 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.
2) Inspect leakage from "a".
The oil seal is damaged. Replace valve assembly
with a new one.
3) Inspect leakage from "b".
The torsion bar O-ring is damaged. Replace valve
assembly with a new one.
4) Inspect leakage from "c".
The oil seal is damaged. Replace valve assembly
with a new one.
5) Inspect leakage from "d".
The pipe is damaged. Replace the faulty pipe or
O-ring.
STEERING GEARBOX [RHD MODEL]
(4) Rack shaft
(5) Gearbox
(6) Pinion shaft
PS-76
(7) From pump
(8) To tank
6) 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) Inspect leakage from "e".
The cylinder seal is damaged. Replace rack
bushing with a new one.
(2) Inspect 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.
ST 926420000 PLUG
S4M0408A