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383-14
1977 PONTIAC SERVICE MANUAL
STUB
VALVE
SHAFT
BODY
SHAFT
h
LOWER THRUST
1
BEARINf
MAKE SURE ANGLE O F
THRUST RACES
ARE
4 s SHOWN.
4
LOWER THRUST
BEARING RACES
0981
Fig. 3 8 3 - 3 5 Worm Shaft and Valve Body
POSITION WORM PIN
IN VALVE BODY NOTCH
I
Fig. 3 8 3 - 3 6 Valve to Worm Alignment
Fig. 3 8 3 - 3 7 Installing Valve Body
c. Measure back (counterclockwise direction) 1/2 inch
and remark housing (Fig. 383-42).
Fig. 3 8 3 - 3 8 Valve Body Properly Seated
Fig. 3 8 3 - 3 9 lntalling Adjuster Plug
d. Rotate adjuster counterclockwise until hole in
adjuster is in line with second mark (Fig. 383-43).
c. Tighten lock nut securely. Hold (or have held)
adjuster plug to maintain alignment of hole with mark (Fig.
383-44).
f. Using an in. lb. torque wrench, turn the stub shaft and
measure the torque. Reading should be 4-6 in. lbs. If torque
is not within this range repeat "a" through "c" to obtain
correct preload (Fig. 383-45).
5. Install the rack-piston as follows:
a. Lubricate the rack-piston teflon seal with Power
Steering Fluid, No. 1050017 o r equivalent.
b. Position Seal Compressor 5-7576 or 5-8947 against the
shoulder in the housing.
c. With Ball Retainer 5-21552 in place in the rack-piston,
push the rack-piston (with teeth toward pitman shaft
opening), into the housing until Tool 5-21552 contacts the
center of worm (Fig. 383-46).
d. Turn the stub shaft clockwise with a 3/4" twelve point
socket or box end wrench to thread the rack-piston onto the
worm while holding Tool 5-21552 against t h e end of the
worm.
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