Pontiac Fiero 1988 Service Manual page 164

MANUAL RACK AND PINION 3B2-1
SECTION 3B2
MANUAL RACK AND PINION
C A U T I O N : T o h e l p a v o i d p e r s o n a l i n j u r y w h e n a v e h i c l e i s o n a h o i s t , p r o v i d e a d d i t i o n a l
s u p p o r t f o r t h e v e h i c l e a t t h e e n d o p p o s i t e f r o m w h i c h c o m p o n e n t s a r e b e i n g r e m o v e d . T h i s
w i l l r e d u c e t h e p o s s i b i l i t y o f t h e v e h i c l e f a l l i n g o f f t h e h o i s t .
N O T I C E :
All steering gear fasteners are important attaching parts that could affect the performance of vital
parts and systems, and/or could result in major repair expense. They must be replaced with one of the same part
number (or with an equivalent part) if replacement becomes necessary. Do not use a replacement part of lesser
quality or substitute design. Torque values must be used as specified during reassembly to assure proper retention
of these parts.
CONTENTS
D i a g n o s i s
Section 3
O n - C a r S e r v i c e
3B2-1
G e n e r a l I n f o r m a t i o n
3B2-1 Rack and Pinion Assembly 3B2-1
Service Charts; A,B,C 3B2-3
G E N E R A L INFORMATION
+4- Install or C o n n e c t
The manual rack and pinion steering system consists
of two main components, the rack and the pinion. The
motion of the pinion is transferred through the pinion
teeth which mesh with teeth on the rack, which moves the
rack. The force is then transmitted through the steering
knuckles on the control arms which turn the wheels.
O N - C A R S E R V I C E
R A C K AND PINION A S S E M B L Y
Figure 1
R e m o v e or D i s c o n n e c t
1.
2.
3.
4.
5.
6.
Raise vehicle.
Flexible coupling pinch bolt to shaft.
Outer tie rod cotter pins and nuts on left and right
sides.
Disconnect tie rods from steering knuckles. See
Section 3C for removal procedures.
Four bolts holding steering assembly to cross
member.
Steering assembly.
1. Position steering assembly to vehicle, stud shaft
in position with flexible coupling.
2. Four new bolts at steering assembly to cross
member.
3. Tie rods into the steering knuckles.
4. Tie rod nut on each knuckle assembly.
H T i g h t e n
• Flexible coupling bolt to 62 N«m (46 lbs. ft.).
• Four steering assembly bolts to 27 N ® m (20
lbs. ft.).
• Tie rod nut at each knuckle to 20 N*m (15 lbs.
ft.) plus 1/2 turn (180°). It is permissible to
torque up to 54 N ® m (39 lbs. ft.), approxi-
mately 1/6 turn of the nut, for cotter pin
alignment.
5. Lower vehicle.
6. Check/adjust front wheel alignment. See
Section 3A.