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7A1-58
1977 PONTIAC SERVICE MANUAL
Fig.
7A1-125
Installing Direct Clutch Plates Into Direct
Clutch Housing
g. 7A1-126
lnstalling Direct Clutch Housing Outer s n a p
Ring
NOTE: To make piston easier to install, insert tool
between the inner seal and shaft; rotate tool around the
shaft to compress the lip of the seal, while pushing down
slightly on the piston. Use the same procedure between
the outer seal and the housing. Refer to Figures 7A1- 134
and 122.
4. Install retainer and spring assembly.
CAUTION: Retainer couM locate in snap ring
groove and forcing retainer to compress springs,
could damage reatiner plate.
5. Using J 23327-01, J 25024 and J 25018 adaptor,
compress retainer past snap ring groove, (Fig. 7 ~ 1 - 1 3 5 ) and
install snap ring. An arbor press may also be used with J
23327-1 and J 25018 to compress retainer and spring
assembly.
6. Remove J 23327-1, J 25024 and J 25018.
7. Oil and install the forward clutch plates into the
forward clutch housing, starting with the waved steel plate
and alternating composition-faced and flat steel clutch plates
(see Fig. 7A1-136 and Clutch Plate Usage Chart, Fig. 7A1-
98B).
8. Install backing plate, chamfered side up.
9. Install snap ring (Fig. 7A1-137).
NOTE: Make sure compostion clutch plates turn freely.
10. Install forward to direct clutch thrust washer and
retain with petrolatum (Fig. 7A1-138)
11. If removed, install new turbine shaft seal rings,
making sure cut ends are assembled in the same relationship
as cut and rings are seated in their groove (see Fig. 7A1-139
for correct way to position cut ends). Retain rings in place
with petrolatum.
Forward and Direct Clutch
Installation
1. Position direct clutch assembly, clutch plate end up,
over hole in bench.
NOTE: Align direct clutch composition-faced clutch
plate teeth one above the other to make the forward
clutch assembly easier to install.
2. Install forward clutch assembly turbine, shaft first,
into direct clutch. Hold direct clutch housing and rotate
forward clutch back and forth until the forward clutch is
seated (Fig. 7A 1
-
140).
NOTE: When the forward clutch is seated, it will be
approximately 19.05mm (3/4") from the tang end of the
direct clutch housing to the end of the forward clutch
drum, Fig. 7A1-141).
3. Grasp direct and forward clutch assemblies to prevent
their separation and position on behch, with the turbine shaft
UP.
4. Install J 25021 as shown in Fig. 7Al- 142.
5. Install direct and forward clutch assemblies into case,
using J 25021, and rotate into position (Fig. 7A1-142).
NOTE: The direct clutch housing will be approximately
33.34mm (1-5/16") from the pump face in case when
correctly seated. See Fig. 7Al- 143.
6. Remove J 25021.
Intermediate Band Assembly
1. Inspect band for burning, flaking or damage.
2. Install intermediate band, locating band apply lug and
anchor pin lug in case slots (Fig. 7A1-144).
PUMP ASSEMBLY
(Fig. 7A1-145)
Inspection
1. Remove pump to case seal ring and inspect groove for
damage.
2. Place pump over hole in bench with pump cover side
UP.
3. Remove pump to direct clutch thrust washer and
inspect for damage or wear (Fig. 7Al- 146).
4. Inspect 3 teflon oil ring seals for damage and free fit
in grooves. Do not remove unless replacing.
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