Pontiac tempest 1968 Service Manual page 586

STEERING
9-29
On Pontiac models a brake hose bracket must be
removed prior to removing frame bolts.
5. Remove steering gear assembly.
MAJOR REPAIRS
(Steering Gear Removed From Car)
DISASSEMBLE STEERING GEAR
Disassemble and reassemble steering gear and
sub-assemblies on a clean work bench, preferably
while the assembly is mounted on a holding fixture
(J 5205 or J 6448-01) as shown in Fig. 9-47.
CAUTION: DO NOT clamp housing in vise.
Cleanliness is of utmost importance; therefore
bench, tools, and parts must be kept clean at all
t i m e S c
Before disassembling gear, thoroughly clean ex­
terior with suitable solvent and drain as much fluid
as possible. Assist draining by turning gear flange
through its entire range two or three times,,
REMOVING HOUSING LOWER END PLUG AND
RACK-PISTON NUT END PLUG
1
0
Remove end plug retaining ring as shown in
Fig. 9-48.
PITMAN SHAFT GEAR
F i g . 9-49 Position of Pitman Shaft G e a r for Removal
REMOVE PITMAN SHAFT GEAR AND SIDE COVER
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 flange (Fig. 9-49).
3. Remove pitman shaft and cover assembly.
4. Remove side cover O-ring seal and discard.
2. Rotate gear flange to left and force end plug
out of housing and discard end plug O-ring seal.
CA UTION: DO NOT turn flange 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.
REMOVE
RACK-PISTON NUT
1. Holding arbor tool J 7539 against end of steer­
ing worm, rotate stub shaft flange to left until rack-
piston is free from worm (Fig. 9-50).
2. With arbor in rack-piston, withdraw rack-
piston nut from housing bore.
NOTE: The arbor prevents balls from falling out
of rack-piston nut.
END PLUG
RETAINER
- f - *
J 7539
*4n
• H P
•MHPl
F i g . 9 - 4 8 Removing End Plug Retaining Ring
F i g . 9-50 Arbor J 7539 Against End of Steering Worm