Buick LeSabre 1965 Service Manual page 350

5 - 1 3 6 DISASSEMBLY & ASSEMBLY SUPER TURBINE " 4 0 0 '
FRONT BAND
REAR BAND
Figure 5-684
g. Inspection of Front
and Rear Bands
1. Inspect the lining for cracks,
flaking, burning or looseness. See
Figure 5-684.
2. Inspect the bands for cracks
or distortion.
3. Inspect the end for damage at
the anchor lugs or supply lugs.
h. Inspection of Case
Extension
1. Inspect the bushing for exces-
sive wear or damage. If replace-
ment is necessary proceed as
follows:
a. Use J-8092 Driver Handle and
Tool J-9640 and remove.
MODULATOR VALVE
OIL RING
MODULATOR ASSEMBLY
PARKING BRAKE \
ACTUATOR ASSEMBLY
DETENT LEVER
Figure 5-685
Figure 5-685A
b. Using Tool J-9640 i n s t a l l
bushing.
2. Inspect the seal ring groove
for damage.
3. Inspect the housing for cracks
or porosity.
4. Be sure rear seal drain back
port is not obstructed.
i. Inspection of Modulator
and Valve
1. Inspect the modulator assem-
bly for any signs of bending or
distortion. See Figure 5-685.
2. Inspect the "O" ring seal seat
for damage.
3. Apply suction to the vacuum
tube and check for diaphragm
leaks.
4. Inspect the modulator valve for
nicks or damage.
5. Check freeness of valve oper-
ation in case bore.
6. Check m o d u l a t o r bellows,
modulator plunger is under pres-
sure (16 lb.). If bellows is dam-
aged the plunger will have very
little pressure.
j. Inspection of Manual
and Parking Linkage
1. Inspect the parking actuator
rod for cracks, damaged snap
ring groove or broken spring re-
tainer lugs. See Figure 5-685A.
2. Inspect the actuator spring for
damage.
3. Inspect actuator for a free fit
on the actuator rod.
4. Inspect the parking pawl for
cracks or wear.
5. Inspect the manual shaft for
damaged threads, rough oil seal
journal or loose lever.
6. Inspect the inside detent lever
for cracks or a loose pin.
7. Inspect the parking pawl shaft
for damaged oil seal or retainer
grooves.
8. Inspect the parking pawl return
spring for deformed coils or
ends.
9. Inspect the parking bracket for
cracks or wear.
10. Inspect detent r o l l e r and
spring assembly.
k. Inspection of
Case Assembly
1. Inspect case assembly for
cracks, porosity or intercon-
nected passages.
2. Check for good retention of
band anchor pins.
3. Inspect all threaded holes for
thread damage.
4. Inspect the intermediate clutch
driven plate lugs for damage or
brinneling.
5. Inspect the snap ring grooves
for damage.
6. Inspect the bore for the gover-
nor assembly for scratches or
scoring.
7. Inspect the modulator valve
bore for scoring or damage.
8. Inspect the cup plug inside the
case for good staking and sealing.