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7A3-44
1 9 7 7 PONTIAC SERVICE M A N U A L
6. From the next bore (E), remove retaining pin, plug,
manual low control valve spring and the manual low control
valve.
7. From the next bore (F), remove the retaining pin,
spring, seat and the detent regulator valve.
8. Install Tool J 22269 on direct clutch 2-3 accumulator
piston and remove retaining "E" ring (G).
9. Remove direct clutch 2-3 accumulator piston and
spring (G). If the teflon piston seal needs replacing the piston
assembly will have to be replaced (Piston and Seal are an
assembly).
10. From the next bore down (D), remove the detent
actuating lever bracket bolt, bracket, actuating lever and
retaining pin, stop, spring retainer, seat, outer spring, inner
spring, washer and the detent valve. Use care when handling
valve body assembly as valve body sleeve retaining pins may
fall out.
Valve Body Inspection
1. Inspect all valves for scoring, cracks and free
movement in their respective bores.
2. Inspect valve body for cracks, scored bores,
interconnected oil passages and flatness of mounting face.
3. Check all springs for distortion or collapsed coils.
Reassembly of Valve Body
1. Install direct clutch 2-3 accumulator piston spring and
piston into valve body.
2. Install special tool J 22269 and J 24675 (installs piston
evenly) on direct clutch 2-3 accumulator piston and compress
spring and piston and secure with retaining ring. Align piston
and oil seal ring when entering bore (G).
3. Install the detent valve, washer, outer spring, inner
spring, spring seat and spring retainer. Install detent valve
stop and detent valve actuating bracket. Torque bolt to 52
lb. in. Assemble detent actuating lever with retaintermidiate
boost valve, boost valve sleeve and retaining pin (D).
4. Install the pressure regulator valve, spring, reverse
and modulator boost valve, intermediate boost valve, boost
valve sleeve and retaining pin (A).
5. In the next bore up, install 2-3 shift valve, shift valve
spring, 2-3 shift control valve, shift control valve spring, shift
control valve sleeve and retaining pin (B).
6. In the next bore up, install the 1-2 shift valve, 1-2 shift
control valve, control valve spring, control valve sleeve and
retaining pin (C).
7. In the next bore up, install the manual low control
valve, spring, plug and retaining pin (E).
8. In the top right hand bore, install the detent regulator
valve, spring seat, spring and retaining pin (F).
REASSEMBLY OF TRANSMISSION
General Instructions
1. Before starting to assemble the transmission, make
certain that all parts are absolutely clean
.
Keep hands
and tools clean to avoid getting dirt into assembly. If work
is stopped before assembly is completed, cover all openings
with clean cloths.
2. When reassembling, it is important that all thrust
washer surfaces be given an intial lubrication. Bushings
should be lubricated with transmission fluid. Thrust washers
should be lubricated on both surfaces with petroleum jelly
(unmedicated) before installation.
3. Do not take a chance on used gaskets and
seals
-
use new ones to avoid oil leaks.
4. Use care to avoid making nicks or burrs on parts,
particularly on surfaces where gaskets are used.
5. It is extremely important to tighten all parts evenly
and in proper sequence, to avoid distortion of parts and
leakage at gaskets and other joints.
Use a reliable torque wrench to tighten all bolts
and nuts to specified torque and in the specified
sequence.
Installation of Low and Reverse Clutch Piston
1. Install low and reverse clutch piston outer seal (Fig.
Fig. 7A3-102 Installing Low and Reverse Clutch Piston
Outer Seal
2. Install low and reverse clutch piston center and inner
seal (Fig. 7A3- 103).
3. Install low and reverse clutch piston assembly with
notch in piston installed adjacent to parking pawl (Fig. 7A3-
104).
4. Position piston return seat and springs. Place snap
ring on return seat so that ring may be easily installed when
seat is compressed with Tool J 2 1420.
5. Using tool J 2 1420- 1, compress return seat so spring
retainer retaining ring may be installed with snap ring pliers
(Fig. 7A3-105).
NOTE: As spring retainer is compressed, make certain
inner edge of retainer does not hang up on snap ring
groove.
Installing Output Shaft and Reaction Carrier
1. Install output ring gear to output shaft and output ring
gear to output shaft ring (Fig. 7A3-106).
DO
NOT
OVERSTRESS
SNAP
RING
ON
ASSEMBLY.
ALWAYS
USE
NEW
RING
ON
REASSEMBLY.
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