Advertisement
PART 7-2- C4 AUTOMATIC TRANSMISSION
7-71
12.
Insert the main oil pressure
regulator valve and spring retainer
in the body (Fig. 68). Install the two
springs, sleeve and the main oil
pressure booster valve in the body.
13.
Hold the main oil pressure
booster valve in place and install the
retaining pin.
14.
Slide the manual valve into the
valve body. Make sure that the end
with the two lands closest together is
inserted first.
15.
Position the rubber ball shuttle
valve and servo check valve in the
upper valve body (Fig. 67).
16.
Position the lower valve body
in place on the upper valve body and
secure it with the nine attaching
screws. Torque the screws to speci-
fication.
17.
Position the throttle pressure
limit valve and spring in the lower
valve body (Fig. 67). Place the gasket
and oil screen in position on the lower
valve body and secure with the eight
attaching screws. Torque the screws
to specification.
FRONT PUMP
1.
Remove the four seal rings
from the stator support .
2.
Remove the five bolts that
attach the stator support to the
front pump
housing.
Remove the
stator support from the pump
housing (Fig. 69).
3. Remove the drive and driven
gears from the front pump housing.
4.
Install the drive and driven
gears in the pump housing. Each
gear has an identification mark on
the side of the gear teeth that are
chamfered.
The chamfered side with
the
identification mark has to
be
positioned
downward
against
the face
of
the pump housing.
PUMP HOUSING
5.
Place the stator support in the
pump housing and install the five
attaching bolts. Torque the bolts to
specifications.
6.
Install the four seal rings on
the stator support. Two large rings
are assembled first in the ring
grooves toward the front of the
stator support.
7. Check the pump gears for free
rotation by placing the pump on the
converter drive hub in its normal
running position and turning the
pump housing.
8.
If the front pump seal must be
replaced
,
mount the pump in the
transmission case and remove the
seal with the tool shown in
Fig.
70.
To install the new seal use the tool
shown in Fig. 71.
REVERSE-HIGH CLUTCH
1.
Remove the pressure clutch
plate retaining snap ring
(Fig.
72).
2.
Remove the pressure plate, and
the drive and driven clutch plates.
(Fig. 73). If the composition clutch
plates are to be reused, do not clean
the plates in a vapor degreaser or
with a detergent solution. Wipe the
plates clean with lint-free cloth.
3. To remove the piston spring
retainer snap ring, place the clutch
hub in the arbor press. With the
tools shown in Fig. 74, compress
the piston return spring and remove
the snap ring. When the arbor press
ram is released
,
guide the spring
retainer to clear the snap ring
groove of the drum.
4. Remove the spring retainer
and piston return spring.
5.
Remove the piston by inserting
air pressure in the piston apply hole
of the clutch hub (Fig. 75).
PUMP
ASS
EMBLY·
7AI03
I
D1418-A
FIG.
70
-
Removing Front Pump
Seal
FIG. 71 - Installing
Front
Pump
FIG. 72
-
Removing Reverse-High
Clutch Snap Ring
FRONT PUMP SEAL
·
7A248
STATOR SUPPORT· 7A108
SEAL RINGS
GASKET· 7A136
DRIVE GEAR
f~
I~
-
)
..
()
-b
'
=
·
~
.,
\1
+
DRIVEN GEAR
FIG. 69- Front Pump and Stator Support Disassembled
SELECTIVE
THRUST WASHERS
D 1894-C
Advertisement
