oil type FORD MUSTANG 1969 Volume One Chassis

07-01-16
General Transmission bervice
07-01-16

CENTER SUPPORT

PLANETARY CLUTCH
"CAM TYPE" CLUTCH RACE

CHAMFER ON PRODUCTION

PART, ONLY-SERVICE PART NOT CHAMFERED
PLANET CARRIER

D1938-A

FIG. 27—Roller Type Planetary Clutch, Carrier and Center Support

shows wear or deterioration, replace

the seal.

4.
Inspect the seal counterbore and

remove all burrs and scores with cro-

cus cloth.

REAR CLUTCH (FMX)

AND REVERSE-HIGH CLUTCH

(C4 AND C6 AUTOMATIC)

1.
Inspect the drum band surface,

the bushing, and thrust surfaces for

scores. Minor scores may be removed

with crocus cloth. Badly scored parts

must be replaced.

Inspect the clutch piston bore and

the piston inner and outer bearing sur-

faces for scores. Check the air bleed

ball valve in the clutch piston for free

movement. Check the orifice to make

sure it is not plugged.

2.
Check the fluid passages for ob-

structions. All fluid passages must be

clean and free of obstructions.

3.
Inspect the clutch plates for wear

and scoring and check the plates for

fit on the clutch hub serrations. Re-

place all plates that are badly scored,

worn or do not fit freely in the hub

serrations.

4.
Inspect the clutch pressure plate

for scores on the clutch plate bearing

surface. Check the clutch release

spring(s) for distortion.

5.
On an FMX transmission, in-

spect the needle bearing for worn rol-

lers.

FRONT CLUTCH (FMX)

AND FORWARD CLUTCH

(C4 OR C6

TRANSMISSIONS)

1.
Inspect the clutch cylinder thrust

surfaces, piston bore, and clutch plate
serrations for scores or burrs. Minor

scores or burrs may be removed with

crocus cloth. Replace the clutch cylin-

der if it is badly scored or damaged.

2.
Check the fluid passage in the

clutch cylinder for obstructions. Clean

out all fluid passages. Inspect the

clutch piston for scores and replace if

necessary. Inspect the piston check

ball for freedom of movement and

proper seating (Fig. 28).

CLUTCH

CYLINDER

PISTON

SEAL
CLIP

D1939-A

. 28—Clutch Piston Check

Valve

3.
Check the clutch release spring

for distortion and cracks. Replace the

spring if it is distorted or cracked.
4.
Inspect the composition and the

steel clutch plates and the clutch pres-

sure plate for worn or scored bearing

surfaces. Replace all parts that are

deeply scored.

5.
On FMX and C4 transmissions,

check the clutch plates for flatness

and fit on the clutch hub serrations.

Discard any plate that does not slide

freely on the serrations or that is not

flat.

6. Check the clutch hub thrust sur-

faces for scores and the clutch hub

splines for wear.

7.
On an FMX transmission, in-

spect the turbine shaft bearing sur-

faces for scores. If excessive clearance

or scores are found, discard the unit.

Check the splines on the turbine

shaft for wear and replace the shaft if

the splines are excessively worn. In-

spect the bushing in the turbine shaft

for scores. On a C4 or C6 Automatic

transmission, check the input shaft for

damaged or worn splines.

FRONT PUMP AND

STATOR SUPPORT

1.
Inspect the mating surfaces of

the pump body and cover for burrs.

2.
Inspect the drive and driven gear

bearing surface for scores, and check

the gear teeth for burrs. Inspect the

stator support splines for burrs and

wear.

3.
Check the fluid passages for ob-

structions.

4.
If any parts other than the stator

support are found defective, replace

the pump as a unit. Minor burrs and

scores may be removed with crocus

cloth. The stator support is serviced

separately.

5.
On a C4 or C6 Automatic trans-

mission, check the oil ring grooves in

the stator support for nicks, burrs or

damaged edges. On a C6 transmis-

sion, check the large seal ring groove

of the pump body for damage. Check

the gasket mating surface of the pump

body for damage.

REAR SUPPORT

(FMX TRANSMISSION)

1.
Inspect the gasket mating sur-

faces for damage.

2.
Inspect the support bushing for

scores.

3.
Inspect the rear support fluid

passages for obstructions.

4.
Check the fit of the fluid tubes in

the support.procarmanuals.com

07-03-21

FMX Transmission

07-03-21

Tool—1175-AB

Tool— T50T-100-A

D1962-A

FIG. 41—Removing Front Pump

Seal

8. Install
the oil
seal remover

shown
in Fig. 41.
Then pull
the
front

seal from
the
pump body.

9. Clean
the
pump body counter-

bore.
Then inspect
the
bore
for
rough

spots.
Smooth
up the
counterbore

with crocus cloth.

10.
Remove
the
pump body from

the transmission case.

11.
Coat
the
outer diameter
of a

new seal with FoMoCo Sealing
Com-

pound,
or its
equivalent. Then position

the seal
in the
pump body. Drive
the

seal into
the
pump body with
the
tool

shown
in Fig. 42
until
the
seal
is
firm-

ly seated
in the
body. Tool 77837
may

be reworked
(Fig. 43) to
install
the

latest type seal.

FRONT PUMP

BODY

D1963-A

FIG. 42—Installing Front Pump

Seal

CHAMFER
TO
REMOVE BURRS

FRONT PUMP
OIL
SEAL

INSTALLATION

MACHINE
OFF

D1964-A

FIG.
43—
Front Pump Seal

Installing Tool Modification
12.
Place
the
pump driven gear
in

the pump body with
the
mark
on the

gear facing down. Install
the
drive

gear
in the
pump body with
the
cham-

fered side
of the
flats facing down.

13.
Install
the
stator support
and

attaching screws. Check
the
pump

gears
for
free rotation.

REAR SUPPORT BUSHING

REPLACEMENT

1.
Remove
the
three pressure tubes

from
the
support housing.

2.
Remove
the
rear support bushing

if
it is
worn
or
damaged.
Use a
cape

chisel
and cut
along
the
bushing seam

until
the
chisel breaks through
the

bushing wall.
Pry the
loose ends
of

the bushing
up
with
an awl and re-

move
the
bushing.

3.
Press
a new
bushing into
the

support housing with
the
tool shown

in
Fig. 44.

Too/
-
T64L-7003-A2
Handle

D 2050-A

FIG. 44—Installing Rear Support

Housing Bushing
4.
Install
the
pressure tubes.

PRESSURE REGULATOR

1.
Remove
the
valves from
the re-

gulator body.

2.
Remove
the
regulator body cover

attaching screws,
and
remove
the

cover
(Fig. 45).

3.
Remove
the
separator plate.

4.
Wash
all
parts thoroughly
in

clean solvent
and
blow
dry
with

moisture-free compressed
air.

5.
Inspect
the
regulator body
and

cover mating surfaces
for
burrs.

6. Check
all
fluid passages
for ob-

structions.

7.
Inspect
the
control pressure
and

converter pressure valves
and
bores
for

burrs
and
scores. Remove
all
burrs

carefully with crocus cloth.

8. Check
the
free movement
of the

valve
in
their bores. Each valve should

fall freely into
its
bore when both
the

valve
and
bore
are dry.

9. Inspect
the
valve springs
for dis-

tortion.

10.
Position
the
separator plate
on

the regulator cover.

11.
Position
the
regulator cover
and

separator plate
on the
regulator body,

and install
the
attaching screws.
Tor-

que
the
screws
to
specification.

12.
Insert
the
valves
in the
pressure

regulator body
(Fig. 45).

CONTROL VALVE BODY

During
the
disassembly
of the con-

trol valve assembly, avoid damage
to

valve parts
and
keep
the
valve parts

clean. Place
the
valve assembly
on a

clean shop towel while performing
the

disassembly operation.
Do not
sepa-

REGULATOR

BODY
CONTROL PRESSURE

VALVE

SEPARATOR
CONVERTER RETAINER

PRESSURE CONVERTER PRESSURE

VALVE SPRINGS

COVER
RETAINER

1111

1111

D1965-A

FIG. 45— Pressure Regulator Disassembledprocarmanuals.com