Buick LeSabre 1965 Service Manual page 472

8 - 8 MANUAL STEERING
STEERING GEAR, STEERING COLUMNS AND LINKAGE
Figure 8-11— Installing Pitman
Shaft Seal
Inspect pitman shaft bushing for
excessive wear or scoring. If
necessary, remove pitman shaft
bushing and install a new bushing
with R e m o v e r and Replacer
J-8810 and Driver Handle J-8092.
6. Check pitman shaft surface for
wear or scoring, then check fit of
pitman shaft lash adjuster and
shim in the slot in end of pitman
shaft by inserting feeler gauge
between the head of screw and
bottom of slot. Adjuster must be
free to turn and end play should
not exceed .002". If end play ex-
ceeds .002" install proper shim.
The shims are available in four
different thicknesses .063", .065",
.067" and .069".
7. Check ball guides for damage
and replace if necessary.
c. Assembly of Steering Gear
NOTE: Lubricate all seals, bush-
ings, bearings and gears with
multi-purpose gear lubricant just
before assembling.
1. Position ball nut over worm
shaft so that deep side of teeth
INSTALLER
J-8564 ^ ~
W O R M
SEAL . ^
HOUSING § §
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HI
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Figure 8-12—Installing Worm
Shaft Seal
will be toward side cover when
installed in gear housing. Install
19 balls in each circuit (rock
worm shaft slightly to aid in in-
stalling balls). Place 6 balls in
each return guide, using grease
to hold balls in place. Install
return guides, clamp and screws.
Rotate worm through its complete
travel several times to insure
balls are installed correctly and
rotate freely.
2. Place upper bearing on worm
shaft and slide worm shaft as-
sembly into housing.
3. Place lower bearing in worm
bearing adjuster and install bear-
ing retainer with Installer J-8564.
Install adjuster assembly with
locknut in housing. Tighten ad-
juster only enough to hold worm
bearings in place. Final adjust-
ment will be made later.
4. Turn worm shaft until center
groove in ball nut lines up with
center of pitman shaft bushing.
Install pitman shaft and lash ad-
juster with shim so that center
tooth meshes with center groove
in ball nut.
5. Place new gasket on side cov-
TAB ON COUPLING MUST
LINE UP WITH MARK
ON WORM SHAFT
M P I N S SHOULD EXTEND
fe
^* 1/16" TO 1/8" THROUGH
STEERING SHAFT FLANGE
Figure 8-13—Steering Gear Coupling
Attached to Lower Steering Shaft Flange
er. Install side cover with gasket
on lash adjuster by turning ad-
juster counterclockwise.
6. Install three side cover bolts
and lock washers. Torque to 30
foot pounds.
7. Turn lash adjuster so that
teeth on shaft and ball nut engage
but do not bind. Install lash ad-
juster lock nut loosely. Final ad-
justment will be made later.
8. To protect pitman shaft seal
from damage, cover shaft splines
with masking tape. Slide new seal
into place and seat against shoul-
der in housing using Installer
J-8569. See Figure 8-11.
9. Install new worm shaft seal
using Installer J-8564. See Fig-
ure 8-12. Drive seal flush with
surface of housing.
10. Fill steering gear with multi-
purpose gear lubricant. Gear is
now ready for final adjustment on
bench is described in paragraph
8-4.