Housing Lower End Plug And Rack-Piston Nut End Plug; Rack-Piston Nut; Adjuster Plug Assembly, Rotary Valve With Worm Shaft And Pin Assembly - Pontiac Grand Prix Service Manual

STEERING 9-31
Fig. 9-57 Removing End Plug Retaining Ring
Before disassembling gear, thoroughly clean exterior
with suitable solvent and drain as much fluid as possible.
Assist draining by turning gear with flexible coupling
installed through its entire range two or three times.
HOUSING LOWER END PLUG AND RACK-PISTON
NUT END PLUG
REMOVE
1. Remove end plug retaining ring as shown in Fig. 9
57.
2. Rotate gear flexible coupling to left and force end
plug out of housing and.discard end plug O-ring seal.
CAUTION: DO NOT turn coupling any farther than
absolutely necessary or balls from ball nut and worm
circuit may escape from this circuit and lay loose inside
rack-piston nut chamber.
3. Remove rack-piston nut end plug retainer, using
1/2" square driver (from socket set). To aid in
loosening end plug, tap end plug with brass drift.
PITMAN SHAFT GEAR AND SIDE COVER
REMOVE
1. Remove side cover retaining screws and washers.
2. Rotate cover as necessary to see when pitman shaft
is centered in gear housing opening while rotating gear
coupling (Fig. 9-58).
3. Remove pitman shaft and cover assembly.
4. Remove side cover O-ring seal and discard.
RACK-PISTON NUT
REMOVE
1. Holding arbor tool J 7539 against end of steering
worm, rotate stub shaft flexible coupling to left until
rack-piston is free from worm (Fig. 9-59).
2. With arbor in rack-piston, withdraw rack-piston nut
from housing
3
bore.
NOTE: The arbor prevents balls from falling out of
rack-piston nut.
ADJUSTER PLUG ASSEMBLY, ROTARY VALVE WITH
WORM SHAFT AND PIN ASSEMBLY
REMOVE (AS AN INTEGRAL UNIT)
1. Remove flexible coupling clamping bolt and remove
coupling.
Fig. 9-59 Arbor J 7539 Against End of Steering
Fig. 9-58 Position of Pitman Shaft Gear for Removal
Worm