1969 FORD MUSTANG Volume One Chassis

07-03-05
FMX Transmission
07-03-05

IN-VEHICLE ADJUSTMENTS AND REPAIRS

CONTROL LINKAGE

ADJUSTMENTS

The transmission control linkage

adjustments should be performed in

the order in which they appear in this

section of the manual.

THROTTLE AND

DOWNSHIFT LINKAGE

ADJUSTMENTS

Adjusting the throttle linkage is im-

portant to be certain the throttle and

kickdown systems are properly adjust-

ed. The kickdown system should come

in when the accelerator is pressed

through detent, and not before detent.

Refer to Group 10 for detailed

throttle and downshift linkage adjust-

ment procedures.

MANUAL LINKAGE

ADJUSTMENT

COLUMN SHIFT

1.
Place the selector lever in the D

position tight against the stop.

2.
Loosen the shift rod adjusting

nut at point A (Fig. 4 or 5).

3.
Shift the manual lever at the

transmission into the D detent posi-

tion, third from the rear.

4.
Make sure that the selector lever

has not moved from the D stop, then

tighten the nut at point A to 10-20 ft-

lbs.

5.
Check the pointer alignment and

the transmission operation for all se-

lector lever detent positions.

CONSOLE SHIFT

1.
Position the transmission selec-

tor lever in D position.

2.
Raise the vehicle and loosen the

manual lever shift rod retaining nut

(Fig. 6 or 7). Move the transmission

manual lever to the D position, fourth

detent position from the back of the

transmission.

3.
With the transmission selector

lever and manual lever in the D posi-

tions,
torque the attaching nut 10 to

20 ft-lbs.

4.
Check the operation of the trans-

mission in each selector lever position.
COLUMN SHIFT LEVER

€>

TRANSMISSION

MANUAL LEVER

FIG. 4—Manual Linkage—Column Shift—Ford-Mteor

D2024-A

FIG. 5—Manual Linkage—Column Shift—Fairlane-Montego

NEUTRAL START SWITCH

ADJUSTMENT

CONSOLE SHIFT

On vehicles equipped with a

column-mounted neutral start switch,

refer to Part 7-1, Section 2, for the

adjustment procedures.

FAIRLANE-MONTEGO

1.
With the manual linkage proper-

ly adjusted, check the starter en-

gagement circuit in all positions. The

circuit must be open in all drive posi-

tions and closed only in park and neu-

tral.

2.
Remove the selector lever handle

from the lever.
3.
Remove the trim panel from the

top of the console.

4.
Remove the cover and dial indi-

cator as an assembly.

5.
Remove the four screws that se-

cure the selector lever retainer to the

selector lever housing. Lift the retainer

from the housing.

6. Loosen the two combination

starter neutral and back-up light

switch attaching screws (Fig. 8).

7.
Move the selector lever back and

forth until the gauge pin (No. 43 drill)

can be fully inserted into the gauge

pin holes (Fig. 8).

8. Place the transmission selector

lever firmly against the stop of the

neutral detent position.procarmanuals.com

07-03-06
FMX Transmission
07-03-06

BUTTON-7C489

TRANSMISSION

MANUAL LEVER
MANUAL LINKAGE

ROD-7340
HANDLE-7217

MANUAL LINKAGE

ROD-7340

BUSHING-7343

FIG.
6—Manual
Linkage—Console Shift—Fairlane-Montego
D2025-A

PLUG-7256

SELECTOR LEVER

HOUSING AND LEVER

ASSEM3LY-7C453
,'

SEAL-7C370

ENGAGE FLATS OF STUD
IN
SLOT
OF

ROD BEFORE APPLYING TORQUE

NUT

—^

MANUAL LINKAGE ROD-7326
HANDLE-7217

BUTTON-7C489

DIAL HOUSING

ASSEMBLY-7E034

POINTER 3ACK-UP

SHIELD

D2026-A

FIG.
7—Manual
Linkage—Console Shift—Mustang-Cougarprocarmanuals.com

07-03-07
FMX Transmission

07-03-07

Gauge Pin

(No.
43 Drill)

NEUTRAL START

SWITCH

ADJUSTMENT

SCREWS

D 1759-A

FIG. 8—
Neutral
Start Switch-

Console Shift—Fairlane-Montego

9. Slide the combination starter

neutral and back-up light switch for-

ward or rearward as required, until

the switch actuating lever contacts the

selector lever.

10.
Tighten the switch attaching

screws and remove the gauge pin.

Check for starting in the park posi-

tion.

11.
Turn the ignition key to the

ACC position and place the selector

lever in the reverse position and check

the operation of the back-up lights.

Turn the key off.

12.
Position the selector lever re-

tainer to the selector lever housing.

Install the four attaching screws.

13.
Install the cover and dial indi-

cator.

14.
Install the trim panel on the top

of the console. Install the selector

lever handle.

MUSTANG-COUGAR

1.
With the manual linkage proper-

ly adjusted and the engine turned off,

place the selector lever in the N (Neu-

tral) position. Then, shift the selector

lever from neutral to 1, to P (park)

and back to neutral. Shifting the se-

lector lever through this shift pattern

should adjust the switch automatical-

ly. If not, adjust it manually as fol-

lows:

2.
With the selector lever in neu-

tral,
remove the selector lever handle

attaching screw and remove the

handle (Fig. 7).

3.
Remove the dial housing attach-

ing screws and remove the housing.

4.
Remove the two pointer back-up

shield attaching screws and remove

the shield.
NEUTRAL START SWITCH

AND HARNESS ASSEMBLY

32027-A

FIG. 9—Neutral Start Switch—Console Shift—Mustang-Cougar

5.
Remove the two screws securing

the neutral start switch to the selector

lever housing.

6. Lift the switch from the housing

and move the actuator lever all the

way to the left. Then, return the actu-

ator lever to the neutral position as

shown in Figure 9.

7.
Position the neutral switch as-

sembly to the selector lever housing,

and secure with the two attaching

screws.

8. Place the selector lever in the P

(Park) position and check the opera-

tion of the switch. The engine should

start with the selector lever in the

park position. If the engine does not

start, replace the switch. Refer to the

Neutral Start Switch Replacement

procedures in this section.

9. Install the pointer back-up shield

on the housing and lever assembly.

10.
Install the dial housing on the

selector lever housing assembly.

11.
Install the selector lever.'handle.

NEUTRAL START SWITCH

REPLACEMENT-

CONSOLE SHIFT

On vehicles equipped with a

column-mounted neutral start switch,

refer to Part 7-1, Section 2, for the

replacement procedures.

FAIRLANE-MONTEGO

1.
Remove the selector lever handle

from the lever.
2.
Remove the trim panel from the

top of the console.

3.
Remove the cover and dial indi-

cator as an assembly.

4.
Remove the four screws that se-

cure the selector lever retainer to the

selector lever housing. Lift the retainer

from the housing.

5.
Remove the two screws securing

the neutral start switch to the selector

lever housing. Disconnect the neutral

start switch wires at the plug connec-

tor and remove the switch.

6. Position the neutral start switch

to the selector lever housing and in-

stall the two attaching screws.

7.
With the selector lever in neu-

tral,
move the selector lever back and

forth until the gauge pin (No. 43 drill)

can be fully inserted into the gauge

pin holes (Fig. 8).

8. Place the transmission selector

lever firmly against the stop of the

neutral detent position.

9. Slide the combination starter

neutral and back-up light switch for-

ward or rearward as required, until

the switch actuating lever contacts the

selector lever.

10.
Tighten the switch attaching

screws and remove the gauge pin.

11.
Connect the neutral start switch

wires to the plug connector and check

for starting in the park position.

12.
Position the selector lever re-

tainer to the selector lever housing.

Install the attaching screws.

13.
Install the cover and dial indi-

cator.procarmanuals.com

07-03-08

FAAX Transmission
07-03-08

14.
Install the trim panel on the top

of the console. Install the selector

lever handle.

MUSTANG-COUGAR

1.
Place the transmission selector

lever in the N (Neutral) position.

2.
Raise the vehicle and remove the

manual lever control rod attaching nut

(Fig. 7).

3.
Lower the vehicle and remove

the selector lever handle attaching

screw and the handle.

4.
Remove the dial housing attach-

ing screws and the housing.

5.
Disconnect the dial indicator

light.

6. Disconnect the neutral start

switch and dial indicator light wires

from their connectors at the dash

panel.

7.
Remove the four selector housing

and lever assembly attaching bolts.

Remove the selector lever and housing

assembly.

8. Remove the two pointer back-up

shield attaching screws and remove

the shield.

9. Remove the two screws securing

the neutral start switch to the selector

lever housing. Push the neutral start

switch harness plug inward and re-

move the switch and harness assembly

(Fig. 9).

10.
Before installing the new

switch, hold it with the wires facing

downward and move the actuator

lever all the way to the left. Then, re-

turn the actuator lever to the neutral

position as shown in Figure 9.

11.
Position the harness and neutral

switch assembly in the selector lever

housing. Secure with the two attach-

ing screws.

12.
Install the pointer back-up

shield on the housing and lever assem-

bly.

13.
Position the selector lever and

housing assembly on the console and

install the attaching bolts.

14.
Connect the dial indicator light.

15.
Connect the neutral start switch

and dial indicator light wires to their

respective connectors at the dash

panel.

16.
Install the dial housing on the

selector lever housing assembly.

17.
Install the selector lever handle.

18.
Raise the vehicle and secure the

manual lever control rod to the selec-

tor lever arm.

19.
Lower the vehicle.

20.
Place the selector lever in the

park position and check the operation

of the switch.
DETENT PAWL

LOCK
NUT

DETENT PAWL

ADJUSTMENT SCREW

DETENT PLATE

D 1644-A

FIG.
10—Typical Selector Lever Detent Pawl Adjustment

SELECTOR LEVER

REPLACEMENT—CONSOLE

SHIFT—FAIRLANE

AND
MONTEGO

1.
Raise the vehicle on a hoist or

jack stands.

2.
Remove the retainer that secures

the manual linkage rod to the lower

end of the manual lever (Fig. 6).

3.
Remove the flat washer and two

insulator washers and disconnect the

rod from the arm.

4.
Working from inside of the vehi-

cle,
remove the selector lever handle

attaching screw. Lift the handle off

the selector lever.

5.
Remove the console trim panel

from the top of the console. Remove

the console retaining screws and re-

move the console.

6. Remove the cover and dial indi-

cator as an assembly.

7.
Remove the four screws that se-

cure the selector lever retainer to the

selector lever housing. Lift the retainer

from the housing.

8. Disconnect the neutral start

switch wires at the plug connector.

Disconnect the bulb socket from the

selector lever housing.

9. Remove the three bolts that se^

cure the selector lever control housing

to the console. Lift the selector lever

housing from the console.

10.
Remove the selector lever to

housing attaching nut. Remove the

lever from the housing.

11.
Install the selector lever in the

housing and install the attaching nut.

Torque the nut to 20 to 25 ft-lbs.

12.
Install the selector lever handle.

13.
Position the selector lever as

shown in Figure 10. With a feeler

gauge,
check the clearance between
the detent pawl and plate. The clear-

ance should be 0.005 to 0.010 inch. If

necessary adjust the height of the de-

tent pawl as shown in Figure 10.

14.
Remove the handle from the se-

lector lever.

15.
Position the selector lever hous-

ing in the console and install the three

attaching bolts. Do not tighten the at-

taching bolts at this time.

16.
Connect the bulb socket to the

selector lever housing and the neutral

start switch wires to the plug connec-

tor.

17.
Position the selector lever re-

tainer to the selector lever housing.

Install the four attaching screws.

18.
Install the cover and dial indi-

cator.

19.
Place the console in position

and install the retaining bolts. Tighten

the selector lever housing attaching

bolts.

20.
Position the console trim panel

and secure it with the attaching

screws.

21.
Install the handle and the but-

ton on the selector lever. Secure the

handle with the set screw.

22.
Secure the manual linkage rod

to the arm with two insulating wash-

ers,
a flat washer and a retainer (Fig.

6).

23.
Adjust the linkage as required.

Lower the vehicle.

MUSTANG-COUGAR

1.
Raise the vehicle and remove the

manual lever control rod attaching nut

(Fig. 7).

2.
Lower the vehicle, remove the se-

lector lever handle attaching screw.

3.
Remove the dial housing attach-

ing screws and the housing.procarmanuals.com

07-03-09
FMX Transmission

07-03-09

4.
Remove the pointer back-up

shield attaching screws and the shield.

5.
Disconnect the dial indicator

light.

6. Disconnect the neutral start

switch and dial indicator light wires

from their connectors at the dash

panel.

7.
Remove the selector housing and

lever assembly attaching bolts. Re-

move the selector lever and housing.

8. Remove the selector lever to

housing attaching nut. Remove the

lever from the housing.

9. Install the selector lever in the

housing and install the attaching nut.

Torque the nut to 20 to 25 ft-lbs.

10.
Install the selector lever handle.

11.
Position the selector lever as

shown in Figure 10. With a feeler

gauge check the clearance between the

detent pawl and plate. The clearince

should be 0.005 to 0.010 inch. If nec-

essary, adjust the height of the detent

pawl as shown in Figure 10.

12.
Remo"~ the handle from tte se-

lector lever.

13.
Install the selector housing and

lever assembly as shown in Figure 4.

Torque the attaching bolts 4-6 ft-lbs.

14.
Connect the dial indicator light.

15.
Connect the neutral start switch

and dial indicator light wires to their

respective connectors at the dash

panel.

16.
Install the pointer back-up

shield and tighten the attaching

screws.

17.
Install the selector lever handle

and tighten the attaching screw.

18.
Position the selector lever in the

D position.

19.
Raise the vehicle. Install the

transmission manual lever rod to the

selector lever. Adjust the manual link-

age.

20.
Lower the vehicle and check the

transmission operation in each selec-

tor lever detent position.

BAND ADJUSTMENTS

FRONT BAND

ADJUSTMENT

1.
Drain the fluid from the trans-

mission by loosening the pan attach-

ing bolts starting at the rear of the

pan and working toward the front.

When most of the fluid has drained

from the pan, remove the remainder

of the attaching bolts. Use a clean

drain can equipped with a 100-mesh

screen if the fluid is to be reused.
Too/—
7225-C-13B

/A
-inch
Spacer
FRONT SERVO

ACTUATING LEVER

D 2048-A

FIG.
7
7—Adjusting Front Band—

Typical

2.
Remove the pan, then remove

the fluid filter and clip from the trans-

mission. Clean the inside of the pan.

Remove all gasket material from the

pan and pan mounting face of the

case.

3.
Loosen the front servo adjusting

screw lock nut.

4.
Pull back on the actuating rod,

and insert the 1/4 inch spacer between

the adjusting screw and servo piston

stem (Fig. 11). Tighten the adjusting

screw to 10 in-lbs. torque. Remove the

spacer and tighten the adjusting screw

an additional 3/4 turn. Hold the ad-

justing screw stationary and tighten

the lock nut securely.

5.
Install the transmission fluid

screen and clip. Install the pan using a

new gasket.

6. Refill the transmission to the

FULL mark on the dipstick.

7.
Start the engine and engage the

transmission in each drive range to fill

all fluid passages, then place the selec-

tor lever in the P position. Check the

fluid level and add enough fluid to

bring the level above the ADD mark

on the dipstick.

ALTERNATE FRONT

BAND ADJUSTMENT

1.
Drain the fluid from the trans-

mission. If the same fluid is to be

used again in the transmission after

Che band adjustment, filter the fluid

through a 100-mesh screen as it drains

from the transmission. Re-use the

fluid only if it is in good condition.

2.
Remove and thoroughly clean

the pan and screen. Discard the pan

gasket.

3.
Loosen the front servo adjusting

screw locknut two full turns with a
inch Driv

Detail #2

D.tai\
#3

T-Hond/e
Extension

Tool-758L-7195-A
f/2 inch Driv

Detail
#7

Qj-«—
TM-470 TM-82

D1950-A

FIG. 12—Front and Rear Band

Adjusting Tools

9/16-inch wrench. Check the. adjusting

screw for free rotation in the actuating

lever after the lock nut is loosened,

and free the screw if necessary.

4.
Pull the adjusting screw end of

the actuating lever away from the

servo body, and insert the 1/4 inch

spacer (Fig. 12) between the servo pis-

ton stem and the adjusting screw.

5.
Install the socket handle on the

9/16-inch socket.

6. Insert the T-handle extension

through the socket handle and socket,

and install the screwdriver socket on

the T-handle extension.

7.
Place the tool on the adjusting

screw so that the screwdriver socket

engages the screw and the 9/16-inch

socket engages the lock nut.

8. With a torque wrench on the T-

handle extension, tighten the adjusting

screw to 10 in-lbs torque.

9. Remove the spacer and tighten

the adjusting screw an additional 3/4

turn. Hold the adjusting screw station-

ary, and torque the lock nut to speci-

fication.

10.
Place a new gasket on the pan,

and install the screen and pan on the

transmission.

11.
Fill the transmission with fluid.

REAR BAND ADJUSTMENT—

FORD-METEOR

1.
Fold back the floor mat to ex-

pose the right side of the floor pan.

2.
Remove the access hole cover

from the floor pan. Remove all dirt

from the adjusting screw threads, then

oil the threads.

3.
Loosen the rear band adjusting

screw lock nut with the tool shown in

Fig. 13. Using the T-handle portion of

the tool, tighten the adjusting screw

until the wrench overruns.procarmanuals.com

07-03-10
FMX Transmission
07-03-10

Too/-T69P-7B793-A

ADJUSTING SCREW

REAR SERVO \ LOCK NUT

Tool—7795-C
D1329-A

FIG. 13—Adjusting Rear Band—

Ford-Meteor

If
the
screw
is
found
to be
tighter

than
wrench
capacity
(10
ft-lbs
tor-

que),
loosen
the
screw
and
tighten

until
the
wrench
overruns.

4.
Back off the adjusting screw 1

1/2 turns. Hold the adjusting screw

stationary, and tighten the adjusting

screw lock nut to specifications.

Severe damage may result if the ad-

justing screw is not backed off exactly

1 1/2 turns.

ALTERNATE REAR BAND

ADJUSTMENT—

FORD-METEOR

The tool shown in Fig. 12 may be

used to adjust the rear band.

1.
Place the socket holder on the

3/4-inch socket (Fig. 12). Insert the

T-handle extension through the handle

and socket.

2.
Place the 5/ 16-inch 8-point sock-

et on the extension. Place a torque

wrench on the T-handle extension.

3.
Insert the assembled tool in the

access hole so that it engages the ad-

justing screw and the lock nut.

4.
Loosen the adjusting screw lock

nut.

5.
Torque the adjusting screw to 10

ft-lbs.

6. Remove the torque wrench from

the T-handle extension and back off

the adjusting screw exactly 1 1/2

turns.
Severe
damage
may
result
to

the
transmission
if the
adjusting
screw

is
not
backed
off
exactly
11/2
turns.

7.
Hold the adjusting screw station-

ary and tighten the lock nut securely.

REAR BAND ADJUSTMENT—

FAIRLANE, MONTEGO

MUSTANG AND COUGAR

Adjustment of the rear band may

be performed either internally or ex-

ternally. Use the internal band adjust-

ment procedures when making a nor-

mal (in-vehicle) band adjustment. Use
ADJUSTING SCREW

LOCK NUT
I
IN

TorqueWrench REAR SERVO APPLY LEVER

D2028-A

FIG. 14—Adjusting Rear Band—

Fairlane, Montego, Mustang and

Cougar

the external adjustment procedure

only when the transmission has been

removed from the vehicle, or when all

available internal adjustment has been

taken up and a further band adjust-

ment is required.

Internal Band Adjustment

1.
Drain the fluid from the trans-

mission. If the same fluid is to be

used again in the transmission after

the band adjustment, filter the fluid

through a 100-mesh screen as it drains

from the transmission. Re-use the

fluid only if it is in good condition.

2.
Remove and thoroughly clean

the pan and filter. Discard the pan

gasket.

3.
Loosen the rear servo adjusting

screw lock nut.

4.
Pull the adjusting screw end of

the actuating lever away from the

servo body, and insert the spacer tool

shown in Fig. 14 between the servo

accumulator piston and the adjusting

screw.
Be
sure
the
flat
surfaces
of the

tool
are
positioned
squarely
between

the
adjusting
screw
and the
accumula-

tor
piston.
The
tool must
not
touch

the servo
piston
and the
tool
handle

must
not
touch
the
servo
piston
spring

retainer.

5.
Using a torque wrench with an

Allen head socket (Fig. 14), tighten

the adjusting screw to 24 in-lbs tor-

que.

6. Back off the adjusting screw

1-1/2 turns. Hold the adjusting screw

stationary and tighten the adjusting

screw lock nut sequrely. Remove the

spacer tool.

7.
Install the transmission fluid fil-

ter and clip. Install the pan using a

new gasket.

8. Fill the transmission with fluid.
D2029-A

FIG. 15—Rear Servo Lever

Adjusting Screw Dimension—

Fairlane, Montego, Mustang and

Cougar

External Band Adjustment

1.
With the transmission mounted

in a holding fixture, loosen the inter-

nal rear servo adjusting screw lock nut

(Fig. 15).

2.
Set the internal adjusting screw

to the dimension shown in Figure 15.

Tighten the lock nut.

3.
With the internal adjusting screw

properly adjusted, loosen the external

adjusting screw lock nut.

4.
Using a torque wrench with an

Allen head socket, tighten the adjust-

ing screw to 10 ft-lbs torque.

5.
Back off the adjusting screw

1-1/2 turns.

6. Hold the adjusting screw from

turning and torque the lock nut to

specification.

GOVERNOR REPLACEMENT

1.
Raise the vehicle so that the

transmission extension housing is ac-

cessible.

2.
Drain the fluid from the trans-

mission.

3.
Disconnect the drive shaft from

the rear axle and slide the front yoke

out of the extension housing.

4.
Disconnect the speedometer

cable from the extension housing.

5.
Remove the two bolts that secure

the extension housing to the engine

rear support.

6. Remove the nut and bolt that se-

cures the engine rear support to the

crossmember.

7.
Raise the transmission high

enough to provide clearance for the

rear mount.

8. Lift the engine rear support from

the crossmember.

9. Lower the jack until the exten-

sion housing just clears the crossmem-procarmanuals.com

07-03-11
FMX Transmission

07
03-11

GOVERNOR
COMPENSATOR

PRESSURE TUBE
MAIN CONTROL

VALVE TUBE

COUNTERWEIGHT

D 1815-A

FIG. 16—Governor Installed

ber to remove all weight from the

housing.

10.
Loosen the parking brake cable

adjustment nut enough to disconnect

the cables from the equalizer.

11.
Remove the extension housing

attaching bolts. Slide the housing off

the output shaft and remove the gas-

ket. When removing
the
extension

housing and/or governor, hold
the

output shaft
and
rear support from

moving rearward
to
prevent
the
needle

bearing
and
race from dropping
out of

location.

12.
Remove the governor to coun-

terweight attaching screws. Lift the

governor from the counterweight (Fig.

16).

13.
Lubricate the governor valve

parts with clean transmission fluid.

Make certain that
the
valve moves

freely
in the
valve body bore.

14.
Position the governor valve

body on the counterweight with the

cover facing toward the front of the

vehicle. Install and tighten the two at-

taching screws to the specified torque.

15.
Position a new extension hous-

ing gasket on the rear of the transmis-

sion case.

16.
Slide the extension housing into

place and secure it to the transmission

case with the attaching bolts. Torque

the bolts to specification. With the ex-

tension housing installed, rotate
the

output shaft.
The
shaft must rotate

freely
by
hand.
If the
shaft
is
tight
or

bound
up, it is
likely that
the
needle

bearing
and
race have dropped
out of

location,
in
which case,
the
transmis-

sion must
be
partially disassembled

and
the
bearing
and
race repositioned.

17.
Connect the speedometer cable

to the extension housing.

18.
Raise the transmission high

enough with a jack to position the en-
FRONT SERVO

FLUID TUBES

PRESSURE

REGULATOR

D 1817-A

FIG. 17—Typical Hydraulic Control System

gine rear support on the crossmember.

Secure the support to the crossmem-

ber with attaching bolt.

19.
Lower the transmission and re-

move the jack. Secure the extension

housing to the rear support with the

two attaching bolts.

20.
Connect the parking brake

cables to the equalizer and adjust the

cables as required.

21.
Install the driveshaft.

22.
Fill the transmission to the cor-

rect level with the specified fluid.

OIL
PAN AND
CONTROL

VALVE BODY REPLACEMENT

1. Raise the vehicle so that the

transmission fluid pan is accessible.

2.
Drain the fluid from the trans-

mission by loosening the pan attach-

ing bolts starting at the rear of the

pan and working toward the front.

When most of the fluid has drained

from the pan, remove the remainder

of the attaching bolts. Remove the

pan and gasket. Discard the gasket. If

the same fluid is to be used again in

the transmission, filter the fluid

through a 100-mesh screen before in-

stalling it in the transmission. Re-use

the fluid only if it is in good condi-

tion.
3.
Disconnect the hose from the

vacuum diaphragm unit. Remove the

diaphragm unit using tool FCO-24.

Do
not use any
tools
on the dia-

phragm housing, such
as
pliers, pipe

wrenches,
etc. Do not
allow solvents

to enter
the
diaphragm unit. Remove

the push rod. Remove the fluid screen

retaining clip and the screen.

4.
Remove the fluid filter retaining

clip and the filter.

5.
Remove the two tubes which

connect to the pressure regulator and

the control valve body (Fig. 17).

6. Loosen the front servo attaching

bolts three turns.

7.
Remove the three control valve

body attaching bolts, and lower the

valve body while pulling it off the

front servo tubes. Be carefull not to

damage
the
valve body
or the
tubes.

8.
Before installing the control

valve body, check for a bent manual

valve by rolling it on a flat surface.

9. Install the control valve body by

aligning the front servo tubes with the

holes in the valve body. Shift the man-

ual lever to the 1 detent, and place the

inner downshift lever between the

downshift lever stop and the downshift

valve.
The
manual valve must engage

the actuating
pin in the
manual detent

lever.

10.
Install but do not tighten, the

control valve body attaching bolts.procarmanuals.com

07-03-12
FMX Transmission
07-03-12

11.
Move the control valve body

toward the center of the case until the

clearance is less than 0.050 inch, be-

tween the manual valve and the act-

uating pin on the manual detent lever.

12.
Torque the attaching bolts to

specification. Be sure that the rear

fluid filter retaining clip is installed

under the valve body bolt as shown in

Figure 17.

13.
Install the tubes to the pressure

regulator and the control valve body.

14.
Turn the manual valve one full

turn in each manual lever detent posi-

tion. If the manual valve binds against

the actuating pin in any detent posi-

tion, loosen the valve body attaching

bolts and move the body away from

the center of the case. Move the valve

body only enough to relieve the bind-

ing. Torque the attaching bolts and

recheck the manual valve for binding.

15.
Position the push rod in the

bore of the vacuum diaphragm unit.

Using the diaphragm unit as a guide,

insert the push rod into the threaded

opening of the case. Torque the dia-

phragm unit to specification. Connect

the vacuum hose.

16.
Torque the front servo attach-

ing bolts to specification.

17.
Adjust the front band. If the

unit is a model PHB-C, D, E, F, G or

H, adjust the rear band at this time.

18.
Install the fluid filter and the

filter retaining clip.

19.
Position a new fluid pan gasket

on the bottom of the transmission

case,
and install the pan. Torque the

pan screws to specification.

20.
Adjust the rear band on

PHB-A and PHD models.

21.
Fill the transmission with fluid.

If
the
fluid that
was
drained from
the

transmission
is to be
used
again,
filter

the fluid through
a
100-mesh screen
as

it
is
poured back into
the
transmis-

sion.
Re-use
the
fluid only
if it is in

good
condition.

22.
If the control valve body was

replaced, adjust the transmission con-

trol linkage.

PRESSURE REGULATOR

REPLACEMENT

1. Drain the fluid from the trans-

mission, and remove the pan and fluid

filter.

2.
Remove the small compensator

pressure tube and the large control

pressure tube from the control valve

body and the pressure regulator.

3.
Remove the pressure regulator

spring retainer, springs, and spacer.

Maintain pressure
on the
retainer
to

prevent
the
springs from flying
out.
4.
Remove the pressure regulator

attaching bolts and washers, and re-

move the regulator.

5.
Position the replacement regula-

tor body on the transmission case and

install the two attaching bolts. Torque

the bolts to specification.

6. Check the converter pressure and

control pressure valves to be sure the

valves operate freely in the bores.

7.
Install the valve springs, spacer,

and retainer.

8. Install the large control pressure

tube,
and the small compensator pres-

sure tube.

9. Install the fluid filter and the

pan, and fill the transmission to the

correct level with the specified fluid.

FRONT SERVO REPLACEMENT

1. Drain the fluid from the trans-

mission, and remove the pan and fluid

filter.

2.
Remove the vacuum diaphragm

unit.

3.
Loosen the three control valve

body attaching bolts.

4.
Remove the attaching bolts from

the front servo (Fig. 17), hold the

strut with the fingers, and remove the

servo.

5.
To install the front servo, posi-

tion the front band forward in the

case with the end of the band facing

downward. Make sure the front servo

anchor pin is in position in the case

web.
Align the large end of the servo

strut with the servo actuating lever,

and align the small end with the band

end.

6. Rotate the band, strut, and servo

to align the anchor end of the band

with the anchor in the case.

Push the servo body onto the con-

trol valve body tubes.

7.
Install the attaching bolts and

torque to specification.

8. Torque the control valve body

attaching bolts to specification.
Check the clearance between the

manual valve and manual lever actuat-

ing pin as given in Oil Pan and Con-

trol Valve Body Replacement.

9. Adjust the front band.

10.
Install the vacuum diaphragm

unit and rod.

11.
Install the fluid filter and pan,

and fill the transmission with fluid.

12.
Adjust the downshift and manu-

al linkage.

REAR SERVO REPLACEMENT

1. Drain the fluid from the trans-

mission, and remove the pan and fluid

filter.

2.
Remove the vacuum diaphragm

unit.

3.
Remove the control valve body

and the two front servo tubes.

4.
Remove the attaching bolts from

the rear servo, hold the actuating and

anchor struts with the fingers, and re-

move the servo. Remove the servo

dowel on PHB models.

5.
To install the rear servo, position

the servo anchor strut on the servo

band, and rotate the band to engage

the strut.

6. Hold the servo anchor strut in

position with the fingers, position the

actuating lever strut, and install the

servo. Insert the servo dowel on PHB

models.

7.
Install the servo attaching bolts,

and torque them to specification. The

longer bolt must
be
installed
in the

inner bolt
hole.

8.
Install the two front servo tubes

and the control valve body.

Check the clearance between the

manual valve and the manual lever

actuating pin as given above in Oil

Pan and Control Valve Body Replace-

ment.

9. Adjust the rear band.

10.
Install the fluid filter and pan,

and fill the transmission with fluid.

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78—Removing Extension Housing Seal
D 1927-Aprocarmanuals.com