Pitman Shaft Gear And Side Cover; Removing Adjuster Plug Assembly; Adjuster Plug And O.ring Removal; Tapping To Loosen Valve Spool - Pontiac Grand Prix Service Manual

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PONTIAC SERVICE MANUAL
Fig. 9-60 Removing Adjuster Plug Assembly
2. Remove adjuster plug lock nut, using punch or
suitable spanner wrench such as J 7624.
3. Remove adjuster plug assembly, using a spanner as
shown in Fig. 9-60.
4. Push on end of worm shaft with a hammer handle
while pulling on stub shaft with slight rotary motion.
This will remove the entire upper unit.
5. Remove adjuster plug from rotary valve and torsion
bar by pulling straight out (Fig. 9-61).
6. Separate worm shaft and valve assembly by pulling
apart.
7. Remove lower bearing and discard torsion bar cap
to worm O-ring (in the Rotary Valve). See
Fig. 9-61.
8. Remove lower bearing races and bearing (these
parts may come out with worm shaft or remain in
housing).
9. Remove adjuster plug O-ring seal and discard.
ADJUSTER PLUG ASSEMBLY
T O WORM " 0 RING
LOWER THRUST
STEERWG WORM BEARING RACES
Fig. 9-61 Adjuster Plug and O.Ring Removal
LASH ADJUSTER SPRING
LASH ADJUSTER THRUST WASHER
LASH ADJUSTER RETAINER
Fig. 9-62 Parts in End of Pitman Shaft Gear DO NOT
DISASSEMBLE
PlTMAN SHAFT GEAR AND SIDE COVER
DISASSEMBLE
1. Hold lash adjuster with 7/32" Allen wrench and
remove lash adjuster nut and discard.
2. Screw lash adjuster out of side covet
NOTE:
Do not disassemble pitman shaft and component
parts as these are serviced as an assembly
(Fig. 9-62).
RACK-PISTON NUT
DISASSEMBLE
1. Place the rack-piston nut assembly on a clean cloth.
2. Remove arbor tool J 7539, ball return guide and
balls, making sure all of the balls are caught on a cloth
(constant ratio: 11 bright and 11 black or variable
ratio: 12 bright and 12 black).
TORSION BAR
Fig. 9-63 Tapping to Loosen Valve Spool