Pontiac Fiero 1988 Service Manual page 201

3D-6 REAR SUSPENSION
DISASSEMBLE AND ASSEMBLE STRUT DAMPER AND SPRING ASSEMBLY/SPRING REPLACEMENT.
STRUT DISASSEMBLY PROCEDURE
N O T I C E : Special toolJ 34013-Amust be used to disassem-
ble and assemble strut damper. Care must be
used not to damage the special coating on the
coil springs, or damage could occur to the coils.
1. Clamp J 34013-A in holding fixture J 3289-20
2. Place strut assembly in bottom adapter of compressor
and install J-26584-89 {make sure adapter captures
the strut and locating pins are engaged).
3. Rotate strut assembly to align top mounting assembly
lip with strut compressor support notch.
4. Insert J 26584-450 top adapter on the top spring seal.
Position top adapters so that the long stud is at high
location to strut flange.
5. Using a ratchet with 1" socket, turn compressor
forcing screw clockwise until top support flange
contacts the J-26584-430 top adapter. Continue
turning the screw compressing the strut spring
6. Place J-26584-430 top adapter over spring seat as-
sembly.
7 . Turn strut compressor forcing screw counterclock-
wise until the strut spring tension is relieved. Remove
top adapters, bottom adapter, then remove strut.
S T R U T A S S E M B L Y P R O C E D U R E
1. Clamp strut compressor body J-26584 in vise.
2. Place strut assembly in bottom adapter of compressor
and install J-26584-89 (make sure adapter captures
strut and locating pins are engaged).
3. Rotate strut assembly until mounting flange is facing
out, directly opposite the compressor forcing screw.
4. Position spring and components on strut, as shown
below. Make sure spring is properly seated on bottom
spring plate.
5. Install strut spring seat assembly on top of spring.
The long stud must be 180° from strut mounting
flange.
6. Place J 26584-450 top adapter over spring seat as-
sembly.
7. Turn compressor forcing screw until compressor top
support just contacts top adapters (do not compress
spring at this time.
8. Install J-26584-27 Strut Alignment Rod through top
spring seat and thread rod onto damper shaft, hand
tight.
9. Compress spring by turning screw clockwise until
enough of the damper shaft is exposed to where the
nut can be threaded securely, and thread nut on
damper shaft. DO NOT C O M P R E S S S P R I N G U N T I L
IT BOTTOMS.
N O T I C E : Be sure that the damper shaft comes through
the C E N T E R of the spring seat opening, or
damage could occur.
10. Remove alignment rod, position strut mount over
damper shaft and spring seat studs. Install washer and
nut.
11. Turn forcing screw counterclockwise to back off
support and remove strut assembly from compressor.
SPECIAL
TOOL
J 26584-450
L O N G S T U D
1 8 0 ° F R O M
S T R U T
F L A N G E
A D A P T E R
J-26584-430
WASHER
BUMPER
B O T T O M
A D A P T E R
J-26584-89
D I R E C T I O N O F L O W E R
S T R U T
F L A N G E
NUT 85 N-m
(65 F T . LB.)
MOUNT
ASM.
W A S H E R
A S S E M B L E S T R U T
A L I G N M E N T R O D
J-26584 27
I N S U L A T O R
S P R I N G
I N S U L A T O R
S H I E L D
S P R I N G T O B E I N S T A L L E D
WITH S M A L L E S T C O I L A T
L O W E S T P O S I T I O N , AND
P L A C E D R E L A T I V E TO T H E
L O W E R S P R I N G S E A T A S
SHOWN
LOWER
SPRING
S E A T
S P R I N G
A B S O R B E R & S T R U T ASM.
14 MM + 6 MM
-J k-
J 1 0 2 5 5 - 3 D - P
Figure 5 Disassemble/Reassemble Strut Assembly