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STEERING
19-3
Fig. 4-Removing
the Steering Gear Arm
should be between lY2 and 4% inch-pounds. If the
reading is not within these limits, the adjustment can
be made, in or out of the vehicle as follows:
(a) Loosen the adjuster lock nut.
(b) Use the adjuster wrench from Tool C-3884 set
and turn the adjuster-clockwise to increase the pre-
load, or counterclockwise to decrease the pre-load.
(c) While holding the adjuster from turning, tight-
en the lock nut securelv. then retest the worm bearing
pre-load.
(4) After the adjustments have been completed,
place the front wheels in a straight ahead position,
and with the steering gear and steering wheel. cen-
tered, install the steering arm on the cross shaft.
(5) Tighten the steering arm retaining nut to 120
foot-pounds.
Ball
Nut Rack
The cross shaft adjusting screw, located in the hous-
ing cover, raises or lowers the shaft to provide the
proper mesh load between the tapered teeth of the
sector gear and the tapered teeth of the ball nut.
NOTE:
This adjustment can be accurately made on-
ly after the proper worm bearing preload has been
established.
(1)
Turn the steering wheel gently from one stop
all the way to the other, carefully counting the num-
ber of turns. Turn the steering wheel back exactly
half way,
to
the center position.
(2)
Turn the cross shaft adjusting screw clockwise
to take out all lash between the ball nut rack and
sector gear teeth, then tighten the adjusting screw lock
nut to 35 foot-pounds.
(3) Turn the steering wheel about
%
turn away
from the center or "high spot" position. Then, using
torque wrench Tool C-3380, at the steering wheel
nut, measure the torque required to rotate the steering
wheel through the high spot at the center position.
The reading should be between 8% and 11% inch-
pounds. This represents the total of the worm shaft
bearing preload and the ball nut rack and sector
gear mesh load. Readjust the cross shaft adjustment
screw if necessary, to obtain the proper torque read-
ing.
Gear Removal
All Models Except AV2 Equipped with
2 7 3 Cu. In. V-8 Engine
NOTE: The manual steering gear can be removed
without removing the steering column assembly.
(1) Remove the steering arm retaining nul.. Re-
move the arm with Tool (2-3646 (Fig. 4).
(2) Remove the bolt from the coupling clamp at
the upper end of the steering gear wormshaft.
(3) To provide sufficient clearance at the coupling,
loosen the column jacket to instrument panel clamp
bolts sufficient to disengage the tab on the clamp
from the slot in the column jacket. Slide the column
assembly up far enough to disengage the coupling
from the wormshaft.
CAUTION: Care is required to avoid scratching the
column jacket when sliding it up and down in the
clamp assemblies.
NOTE: It is not necessary to disconnect the
shift
linkage on models equipped with manual transmis-
sion, or to remove the floor plate to
n-o*
m a n
knits
when removing the steering gear.
If
the floor plate
bolts are loosened, it will be necessary to realign
the steering column when reinstalling the gear.
(4)
Remove the three steering gear housing mount-
ing bolts and remove the steering gear from the vehi-
cle. On models with
6
cylinder engines the steering
gear can be removed through the engine cornpart-
ment. On models equipped with
8
cylinder engines the
steering gear can be removed from under the vehicle.
AV2 Models Equipped with
273 Cu. In. V-8 Engine
(1)
Disconnect the battery ground cable.
(2)
Loosen the bolt of the coupling clamp at the up-
per end of the steering gear wormshaft. To provide
sufficient clearance at the coupling, loosen the column
jacket to instrument panel clamp bolts and slidle the
column assembly up far enough to disengage the coup-
ling from the wormshaft.
(3) Raise the vehicle and remove the left front en-
gine mount stud nut and washer. Use a suitable jack
and raise the engine slightly to provide clearance be-
tween the left exhaust manifold and the body sheet
metal to allow removal of the gear.
(4)
Remove the starting motor.
(5) Remove the steering arm retaining nut and re-
move the steering arm from the cross shaft with puller,
To01 C-3646.
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