Subaru XT 1988 Service Manual page 899

STEERING SYSTEM
4-3
OIL LEAK CHECK PROCEDURE AND
REPLACEMENT PARTS
a. Parts requiring replacement are described in the smallest
unit of spare parts including damaged parts and spare parts
damaged. In actual disassembly work, accidental damage as
well as inevitable damage to some related parts must be taken
Disassembling
into account, and spare parts for them must also be prepared.
H01Never, it is essential to pinpoint the cause of trouble, and
limit the number of replacement parts as much as possible.
b. Disassembly and parts to be replaced.
c. To locate cause of trouble, disassemble steering system as
indicated below.
Parts to be replaced
Disassembling the steering body ASSY
Lock washer
®
Seal kit
®
(Backup ring
®
should be replaced depending on amount of damage,
wear.)
Steering grease (PIN 003608001)
Bond C (PIN 004403004)
Disassembling the valve ASSY
Seal kit
®
Steering grease (PIN 003608001 )
Bond C (PIN 004403004)
Parts to discard after disassembling Lock washer
®
Parts included in seal kit
®
(Backup ring
®
and Backup ring
®
should be replaced depending
on amount of damage, deformation.)
1) Leak from "a"
Since the V-packing
@
is damaged, replace valve housing
ASSY
®
with a new one. Or replace the damaged parts and
parts damaged during disassembly with new ones.
2) Leak from "b"
a-ring (torsion bar) is damaged, so replace pinion
&
valve
ASSY
®
with a new one.
3) Leak from "c"
Oil seal
@
is damaged, so replace pinion & valve ASSY
®
with a new one.
4) Leak from ltd"
Pipe ASSY
@
or
®
is damaged, so replace the damaged pipe
ASSY with a new one.
5) Leak from "e" or "f"
Slide both boots to the tie-rod end with the gearbox ASSY on
the vehicle, and then wipe any oil around them. Start the
engine, and make sure of the following items immediately
after about 30 to 40 lock-to-Iock operations of the steering
wheel and again a few hours later. Then replace faulty parts.
(1) Leak from "e"
V-packing
@
is damaged, so replace seal holder ASSY®
with new one.
(2) Leak from "f"
Leakage from "f" may have two causes.
Determine the exact cause by the following procedure.
Finding the leak
Remove the pipe ASSY B
®
from the valve housing and
substitute the cap with the special tool (PLUG: 926420000).
Start the engine, and then check if it leaks immediately after
the about 30 to 40 lock-to-Iock operations of the steering
wheel and after a few hours later.
Result of test and remedial action
• Leak continues from "f"
Oil seal
@
is damaged, so replace the pinion & valve ASSY
®
with a new one.
53
• No further leak from "f"
Oil seal
®
is damaged, so replace the oil seal and all parts
damaged during disassembly with new ones.