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TRANSMISSION-TORQUEFLITE
2 1-95
(4)
Lubricate all the clutch plates, install one steel
plate followed by a lined plate until all the plates are
installed. Install the pressure plate and snap ring.
Make sure the snap ring is properly seated.
(5) With the front clutch completely assembled, in-
sert a feeler gauge between the pressure plate and
snap ring (Fig. 96). The clearance should be .024 to
.123 inch. If not, install a snap ring of the proper
thickness to obtain the specified clearance.
NOTE:
Snap rings are the same as those used in
the rear clutch and are available in
.060-.062, .074-
.076
and
.088-.090
inch thickness.
REAR CLUTCH-A-904-G
AND A-904-LA
Disassembly
Figure 97 shows a disassembled view of the rear
clutch assembly.
(1) Using a screw driver, remove the large snap
ring that secures the pressure plate in the clutch pis-
ton retainer. Lift the pressure plate, clutch plates,
and inner pressure plate out of the retainer.
(2) Remove the piston spring snap ring and remove
the spring.
(3) Invert the clutch piston retainer assembly and
bump it on a wood block to remove the piston. Re-
move the seals from the piston.
(4) If necessary, remove the snap ring and press
the input shaft from the piston retainer.
Inspection
Inspect the facing material on all the driving discs.
Replace discs that are charred, glazed or heavily pit-
ted. Discs should also be replaced if they show evi-
dence of material flaking
off
or if the facing material
can be scraped
off
easily. Inspect the driving disc
splines for wear or other damage. Inspect the steel
plate and pressure plate surface for burning, scoring
or damaged driving lugs. Replace
if necessary. In-
spect the plates and discs for flatness, they must not
be warped or cone-shaped.
Inspect the steel plate lug grooves in the clutch
re-
tainer for smooth surfaces, plates must travel freely
in
the grooves. Note the ball check in the clutch
re-
tainer, make sure the ball moves freely. Inspect the
seal ring surfaces in the clutch retainer for nicks or
deep scratches, light scratches will not interfere with
sealing of the neoprene rings. Inspect the neoprene
seal rings for deterioration, wear and hardness. In-
spect the piston spring and snap rings for distortion.
Inspect the interlocking seal rings (Fig. 97) on the
input shaft for wear or broken locks, make sure they
turn freely in the grooves. Do not remove the rings
unless conditions warrant. Inspect the rear clutch to
front clutch thrust washer for wear. Washer thickness
should be .043 to .045 inch, replace if necessary.
Assembly
(1)
If removed, press the input shaft into the pis-
ton retainer and install the snap ring.
(2) Lubricate and install the inner and outer seal
rings on the clutch piston. Make sure the lip of the
seals face toward head of the clutch retainer, and are
properly seated in the piston grooves.
(3) Place piston assembly in the retainer and, with
a twisting motion, seat the piston in the bottom of the
retainer.
(4) Place the spring over the piston with outer
edge of spring positioned below the snap ring groove.
Start one end of the snap ring in the groove, make
sure the spring is exactly centered on the piston, then
progressively tap the snap ring into the groove (Fig.
98). Be sure the snap ring is fully seated in the
groove.
(5)
Install the inner pressure plate in the clutch
retainer with raised portion of plate resting on the
spring.
(6) Lubricate all clutch plates, install one lined
plate followed by a steel plate until all the plates are
installed. Install the outer pressure plate and snap
ring.
(7) With the rear clutch completely assembled, in-
sert a feeler gauge between the pressure plate and
snap ring (Fig. 99). The clearance should be between
SPRING
I
Fig. 98-Insfalling
Rear Clutch Spring and Snap
Ring
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