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STEERING
1 9 - 2 3
CAUTION: To prevent excessive fluid loss and
pump wear, do not hold the steering wheel in an ex-
treme left-turn position for more than one or two
seconds at a time.
(6) S t a r t t h e engine a n d m o m e n t a r i l y hold t h e
steering wheel i n a n extreme l e f t - t u r n position to ac-
tuate t h e spool valve. T h i s should develop enough
pressure o n t h e upper side o f t h e rack piston and i n
the p i t m a n shaft chamber t o force t h e p i t m a n shaft
seals a n d t h e r e m a i n i n g backup washer o u t o f the
shaft bore ( F i g . 3).
BACKUP
WASHERS
SINGLE-UP
DOUBLE-UP
SEAL
SEAL
J8919-30
Fig. 3 Seals, Backup Washers & Retaining Ring
(7) Stop t h e engine a n d remove t h e seals and
backup washer f r o m the p i t m a n shaft. Discard the
seals.
(8) Inspect t h e outer circumference surface area of
the seals for damage to t h e rubber covers. I f the
outer circumference surface area is scored, inspect
the shaft bore i n t h e housing for burrs. I f present, re-
move t h e b u r r s f r o m the bore before i n s t a l l i n g the
replacement seals.
(9) Inspect t h e seal contact surface area on the pit-
m a n shaft for p i t t i n g and roughness. I f pitted, re-
place t h e shaft.
(10) Remove a l l rust, foreign m a t e r i a l a n d rough
areas f r o m t h e seal contact surface area o n the pit-
m a n shaft w i t h a crocus cloth.
(11)
L u b r i c a t e t h e replacement
seals and t h e
backup washers w i t h power steering f l u i d .
CAUTION: A protective wrap must be used to en-
close the shaft threads/splines during seal installa-
tion. If the shaft seals are installed over exposed
shaft threads or splines, the seal lips could be cut
or distorted and result in leakage after installation.
(12) W r a p t h e p i t m a n shaft threads/splines w i t h
0.1-mm (0.005-in) t h i c k shimstock (or a single layer
of t h e t h i n n e s t plastic tape available) to protect t h e
replacement seals d u r i n g i n s t a l l a t i o n .
(13) I n s t a l l t h e single-lip seal first, a n d t h e n t h e
i n n e r backup washer ( F i g . 3) w i t h a seal i n s t a l l a t i o n
tool. Position t h e seal a n d t h e washer only f a r
enough i n t h e shaft bore to provide sufficient clear-
ance for t h e second seal, t h e outer backup washer
and t h e r e t a i n i n g r i n g . D o n o t f o r c e
t h e seal
a g a i n s t t h e i n n e r b o r e s u r f a c e .
CAUTION: For proper sealing, ensure that the seals
are spaced so that they are separately "seated" in
the shaft bore.
(14) I n s t a l l t h e "double-lip" seal a n d t h e outer
backup washer (Fig. 3) w i t h a seal i n s t a l l a t i o n tool.
Position t h e seal a n d t h e backup washer only far
enough i n t h e shaft bore to provide sufficient clear-
ance for t h e r e t a i n i n g r i n g .
(15) Remove t h e shimstock/tape from t h e shaft. I n -
stall t h e r e t a i n i n g r i n g (Fig. 3). Ensure t h a t t h e r i n g
is "seated" correctly i n t h e housing bore groove.
(16) W i t h t h e p i t m a n (steering) a r m a n d shaft i n -
s t a l l a t i o n reference m a r k s aligned, position t h e p i t -
m a n (steering) a r m on t h e p i t m a n shaft.
T h e p i t m a n ( s t e e r i n g ) a r m n u t a n d l o c k w a s h e r
m u s t b e r e p l a c e d w i t h e i t h e r e x a c t r e p l a c e m e n t s
(same p a r t n u m b e r s ) , o r w i t h e q u i v a l e n t r e p l a c e -
m e n t s , i f r e p l a c e m e n t i s necessary.
(17) I n s t a l l t h e lockwasher and the r e t a i n i n g n u t
on t h e p i t m a n shaft a n d t i g h t e n t h e n u t w i t h 237
N-m (175 ft-lbs) torque.
I n s t a l l a replacement cotter p i n .
(18) Connect the center l i n k to the p i t m a n (steer-
ing) a r m . T i g h t e n t h e r e t a i n i n g n u t w i t h 54 N
#
m (40
ft-lbs) torque. I n s t a l l a replacement cotter p i n .
(19) Remove t h e supports and lower t h e vehicle.
(20) F i l l t h e reservoir w i t h power steering f l u i d .
(21) S t a r t t h e engine and allow i t to operate a t idle
speed for a t least three minutes. D o n o t t u r n t h e
s t e e r i n g w h e e l d u r i n g t h i s t i m e .
(22) T u r n t h e steering wheel to the left a n d to t h e
r i g h t a n d inspect for fluid leakage. A d d power steer-
i n g fluid as required.
(23) Remove t h e d r a i n pan.
END-PLUG
SEAL-REPLACEMENT
(1) Raise a n d support t h e vehicle. Place t h e f r o n t
wheels i n a straight-ahead position.
(2) Place a d r a i n p a n under the steering gear.
(3) Rotate t h e end-plug r e t a i n i n g r i n g u n t i l one
end o f t h e r i n g is positioned under the adjacent hole
located i n t h e side of t h e gear housing. " U n s e a t " a n d
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