Subaru IMPREZA 2002 Service Manual page 487

1
STEERING GEARBOX
POWER ASSISTED SYSTEM (POWER STEERING)
6. OIL LEAKING
S4M0153A
(1) Power cylinder (3) Rack piston
(2) Cylinder (4)
Rackaxle
NOTE:
If the gearbox is dismounted without confirming
where the leak is, it must be mounted again to lo-
cate 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 run-
ning, then make comparison of the suspected por-
tion between immediately after and several hours
after this operation.
(5) Input shaft
(6) Valve housing
2) Inspect leakage from "a"
The oil seal is damaged. Replace the valve assem-
bly with
a
new one.
3) Inspect leakage from " b
The torsion bar O-ring is damaged. Replace the
valve assembly with a new one.
4) Inspect leakage from "c"
The oil seal is damaged. Replace the valve assem-
bly or oil seal with a new one.
5 ) Inspect leakage from "d"
The pipe is damaged. Replace the faulty pipe or 0-
ring.
PS-45