Pitman Shaft Seals And'washers - Pontiac Grand Prix Service Manual

9-38
1969
PONTIAC SERVICE MANUAL
4. Assemble stub shaft assembly in valve body
afgning groove in valve cap with pin in valve body
(Fig. 9-65). Press on cap until cap is against shoulder
in
valve body with valve body pin in cap groove. Hold
these parts together during remainder of assembly.
5. With notch end of spool towards valve body, install
spool, aligning spool notch with pin in stub shaft.
CA UTION: Because of small clearance between valve
spool and valve body, extreme care must be taken when
assembling these parts. Push the spool evenly and slowly
with a slight oscillating motion until spool reaches drive
pin. Before pushing spool completely in, make sure
dampener O-ring seal is. evenly distributed in spool
groove. Slowly push spool completely in, with extreme
care taken not to cut or pinch O-ring seal.
6. Slide spool spring over stub shaft and work spring in
position.
7. Lubricate cap to worm O-ring seal and install in
valve assembly.
NOTE: If during assembly of valve, stub shaft and cap
assembly is allowed to slip out of engagement with the
valve body pin, spool will be permitted to enter valve
body too far. Dampener O-ring seal may expand into
valve body oil grooves preventing removal of spool.
a. Remove valve spool spring and disassemble rotary
valve assembly.
b. Press on spool until O-ring seal is cut and spool can
be removed.
c. Replace O-ring seal and proceed with assembly as
before.
HOUSING
ASSEMBLE
1. With stamped end of pitman shaft needle bearing
INNER BACK-UP WASHER
E LIP OIL SEAL
against shoulder of adapter J 6278-3, use remover and
repla'cer J 6278-1 to drive bearing into bore from
outside of housing until flush-to-1 /32" below shoulder.
Make sure needle bearings rotate freely.
CA UTION: Damage will result to flanged bearing used
on variable ratio gears i f driven into housing and
bottomed out with too much force.
2. Lubricate cavity between lips of pitman shaft
(double lip) seal with high melting point, water
resistant wheel bearing lubricant.
3. Lubricate and install pitman shaft seals; single lip
seal, inner back-up washer, double lip seal, outer dust
seal and retaining ring in housing bore (Fig. 9-70). Use
tool J 6219 (Fig. 9-71) for seals and Truarc pliers for
retaining ring. Make sure seal lips are properly
positioned, retaining ring is seated and that approxi-
mately 1/16" clearance is maintained between inner
seal (single lip) and bearing.
4. If connectors were removed, install new connectors
by driving into place with tool J 6217 (Fig. 9-72).
RACK-PISTON NUT AND WORM
ASSEMBLE
0
1. Lubricate and install new ring back-up seal and teflon
piston ring on rack-piston nut being careful ring and seal do
not twist during installation.
2. Insert worm into rack-piston nut to bearing shoulder
(Fig. 9-73).
Fig.
9-70
Pitman Shaft Seals and'washers
Fig.
9-71
Installing Pitman Shaft Seals Using
J 6219