Pontiac FIREBIRD 1972 Service Manual page 1025

7F-38 1972 PONTIAC SERVICE MANUAL
(6) attaching bolts and washers, upper valve body
plate and its gasket from upper valve body.
Remove retaining stud from face of valve body by
wedging a thin bladed screwdriver between head
of stud and valve body. Then, remove detent
valve assembly and throttle valve spring. If neces-
sary, remove "E" clip and tilt valve body to allow
throttle valve to fall out. If necessary, remove "E"
clip, guide washer, detent valve spring and detent
valve from TV spring regulator and nut.
b. Downshift timing valve train
-
drive out roll pin,
remove valve spring and high speed downshift
timing valve.
5. From lower valve body, remove low and drive shift
valve and pressure regulator valve as follows:
a. Low and drive shift valve train
-
remove snap ring
and tilt valve body to remove low and drive
regulator valve sleeve and valve, inner and outer
springs and low and drive valve.
b. Pressure regulator valve train
-
remove snap ring
and tilt valve body to remove booster valve sleeve
and valve, pressure regulator spring retainer,
spring and pressure regulator valve. If necessary,
remove spring seat from pressure regulator valve.
INSPECT
1. Wash all parts thoroughly in cleaning solvent and air
dry.
2. Check all valves and their bores in valve bodies for
burrs or other deformities which could result in valve
hang up.
3. Inspect both valve bodies for cracks, interconnected
oil passages and flatness of their mounting faces.
4. Check all springs for distortion or collapsed coils.
ASSEMBLE
1. Into lower valve body, install low and drive shift
valve and pressure regulator valve as follows:
a. Pressure regulator valve train
-
if removed, install
pressure regulator spring seat onto stem end of
pressure regulator valve and install valve (stem
end out) and spring into its bore of lower valve
body. Install spring retainer onto spring. Install
booster valve (stem end in) into booster valve
sleeve, insert sleeve assembly into bore, compress
sleeve and retain with snap ring.
b. Low and drive shift valve train
-
on other end of
lower valve body, install low and drive shift valve
(stem end out) into its bore and install inner and
outer springs. Install low and drive regulator
valve into low and drive regulator valve sleeve,
install sleeve assembly (cap end out) into bore,
compress sleeve and retain with snap ring.
2. Into upper valve body, install throttle, detent and
downshift timing valves as follows:
a. Downshift timing valve train
-
install high speed
downshift timing valve (stem end out) and spring
into its bore. Compress timing valve spring and
install its retaining roll pin below flush with ma-
chined face of upper valve body.
b. Throttle valve and detent valve train
-
on other
end of upper valve body, if removed, install throt-
tle valve (stem end out) into its bore and retain it
with its "E" clip. Install throttle valve spring. If
disassembled, install detent valve onto stem of TV
spring regulator and nut, then detent valve
spring, guide washer, compress it and retain with
"E" clip. Install detent valve assembly into bore
and contain it with its retaining stud in face of
valve body. Install gasket and upper valve body
plate to the upper valve body, align and install six
(6) attaching bolts and washers and torque evenly
to 5 lb. ft.
3. Install filter into its proper bore in face of upper valve
body.
NOTE: Upper and lower valve body gaskets are
identical.
4. Install valve body gasket to upper valve body, then
install transfer plate, second valve body gasket and
lower valve body carefully to the upper valve body.
5. Noting location of spring retainer as shown in Fig.
7F-57, install spring retainer and fifteen (15) lower-
to-upper attaching bolts, torquing to 15 lb. ft. These
bolts are 1 3/8" long.
6. Install range selector detent lever on stud at side of
valve body and retain with "E" clip.
7. Install manual control valve in upper valve body.
OIL PUMP OIL SEAL
REPLACE
1. If pump oil seal requires replacement, pry out old seal
from pump body and discard.
2. Coat O.D. of new seal with non-hardening sealer and,
using Seal Installer J 21359, drive seal into place so
that it is fully seated in its counterbore.