Pontiac FIREBIRD 1972 Service Manual page 1222

STEERING
NOTE:
TOOL
J
5188
CAN ALSO
BE USED
SEAL
-
IN
FROM
OLE
IN
I
Fig. 9 - 9 2 Removing Stub Shaft Assembly
Fig. 9 - 9 0 Installing Adjuster Plug Seal
CLEANING AND INSPECTION
Push the spool valve out of the flush end of the valve
body until the dampener "0" ring is exposed, then
carefully pull the spool from the valve body, while
rotating the valve (Fig. 9-93). If the spool valve
becomes cocked, carefully realign the spool valve,
then remove.
Remove the dampener "0" ring from the spool valve
and discard.
If the plastic oil rings are to be replaced, cut the 3
plastic oil rings and "0" rings from the valve body
and discard.
Fig. 9-9 1 Installing Retainer
1. Wash all parts in clean solvent and blow out all oil
holes with compressed air.
2. If the drive pin in the lower shaft or valve body is
cracked, excessively worn or broken, replace the
complete valve and shaft assembly.
3. If there is evidence of leakage between the torsion bar
and the stub shaft or scores, nicks, or burrs on the
ground surface of the sub shaft that cannot be cleaned
up with crocus cloth, the entire valve and shaft as-
sembly must be replaced.
4. Check the outside diameter of the spool valve and the
inside diameter of the valve body for nicks, burrs, or
bad weat spots. If the irregularities cannot be cleaned
up by the use of crocus cloth, the complete valve and
shaft assembly will have to be replaced.
5. If the small notch in the skirt of the valve body is
excessively worn, the complete valve and shaft assem-
bly will have to be replaced.
6. Lubricate the spool valve with power steering fluid
and check the fit of the spool valve in the valve body
(with the spool valve dampener " 0 ring removed).,
If the valve does not rotate freely without binding, the
complete valve and shaft assembly will have to be
replaced.
ASSEMBLY
1. If valve body " 0 " rings and plastic rings were
removed, install new " 0 rings in the oil ring grooves
and lubricate with power steering fluid (Fig. 9-94).