Pontiac FIREBIRD 1972 Service Manual page 1223

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9-70 1972 PONTIAC SERVICE MANUAL
Fig. 9-93 Removing Spool Valve
2. Lubricate the 3 new plastic oil rings with power steer-
ing fluid and install in grooves over " 0 rings.
NOTE: The plastic nngs may appear to be dis-
torted, but the heat of the oil dunng operation
of the gear will straighten them out.
3. Lubricate the spool valve dampener " 0 " ring with
power steering fluid and install over the spool valve.
4. a. Lubricate the spool valve and valve body with
power steering fluid and slide the spool valve into
the valve body.
b. Rotate the spool valve while pushing it into the
valve body.
c. Push the spool valve on through the valve body
until the shaft pin hole is visible from the opposite
end (spool valve flush with shaft cap end of valve
body).
"0" RlNG
w PLASTIC RINGS
(3)
INSTALLED UNDER
PLASTIC RINGS
STUB SHAFT
5. Lubricate the shaft assembly with power steering
fluid and carefully install it into the spool valve until
the shaft pin can be placed into the hole in the spool
valve.
6. Align the notch in the shaft cap with the pin in the
valve body and press the spool valve and shaft assem-
bly into the valve body (Fig. 9-95).
CAUTION: Make sure that the shaft cap notch
is mated with the valve body pin before install-
ing valve body into the gear assembly.
7. Lubricate a new "0" ring with power steering fluid
and install it in the shaft cap end of the valve body
assembly.
PITMAN SHAFT AND SIDE COVER
DISASSEMBLY
Remove the pitman shaft (lash) adjuster screw locknut
and unscrew the side cover from the adjusting screw. Do
not attempt to disassemble pitman shaft. Discard locknut.
CLEANING AND INSPECTION
1. Wash all parts in clean solvent and dry parts with
compressed air.
2. Check pitman shaft bearing surface in the side cover
for scoring. If badly worn or scored, replace the side
cover.
3. Check the sealing and bearing surfaces of the pitman
shaft for roughness, nicks, etc. If minor irregularities
in surface cannot be cleaned by use of crocus cloth,
replace the pitman shaft.
NOTCH IN END CAP MUST FULLY
ENGAGE PIN PROJECTING INTO
VALVE BODY
h
Fig. 9-94 Exploded View of Valve Body and Shaft
Assembly
Fig, 9-96 l n s t a l l i n ~ Stub Shaft Assembly