Adjusting Thrust Bearing; Marking Gear Housing; Measuring For Second Mark; Rotating Adjuster (Ccw) - Pontiac TRANS AM 1977 Service Manual

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POWER STEERING GEAR AND PUMP
383-1 5
Fig. 3 6 3 - 4 2 Measuring For Second Mark
Fig. 3 6 3 - 4 0 Adjusting Thrust Bearing
Fig. 3 6 3 - 4 3 Rotating Adjuster (CCW)
position for handling and assembly.
Fig. 383-4 1 Marking Gear Housing
e. When the rack-piston is completely threaded on the
worm, remove Ball ~ e i a i n e r J 21552 a n d Seal Compressor
J-7576 or J-8947.
6. Install the pitman shaft and side cover as follows:
a. Install a new gasket seal in the side cover. Power
steering gears are equipped with a side cover gasket seal. This
seal is a metal gasket with a molded rubber section, which
fits into the "0" ring groove in the side cover. When the
gasket seal is correctly seated in the side cover "0" ring
groove, the gasket cannot be rotated. If the wrong gasket face
is against the side cover, the gasket will rotate freely. Two
metal tabs are provided and are to be bent around the edges
of the side cover. This secures the gasket in the proper
b. Turn the stub shaft until the rack-piston teeth are
centered in the pitman shaft opening, then install the pitman
shaft and side cover so that the center tooth of the pitman
shaft engages the center groove of the rack piston.
c. Back the over-center adjusting screw all the way out,
and then turn it in 1/2 turn. Install side cover bolts and
torque to 35 ft. Ibs.
7. Install the rack piston plug in the rack piston and
torque to 75 ft. lbs.
8. Install a new housing end cover "0" ring and lubricate
it with Power Steering Fluid, No. 1050017 or equivalent.
Install the end cover and retaining ring.
9. Adjust the over-center preload as follows:
a. Turn the stub shaft from stop to stop, counting the
total number of turns. Divide this number by 2. Starting at
either stop, turn the stub shaft 1/2 the total number of turns.
This is the "center" of the gear. The flat on the stub shaft
is normally up and parallel with the side cover when the gear

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Firebird 1977

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