run flat FORD MUSTANG 1969 Volume One Chassis

02-01-07
Brakes

02-01-07

CENTRALIZING THE

PRESSURE DIFFERENTIAL

VALVE

After a failure of the primary (front

brake) or secondary (rear brake) sys-

tem has been repaired and bled, the

dual-brake warning light will usually

continue to be illuminated due to the

pressure differential valve remaining in

the off-center position.

To centralize the pressure differen-

tial valve and turn off the warning
light after a repair operation, a pres-

sure differential or unbalance condi-

tion must be created in the opposite

brake system from the one that was

repaired or bled last.

1.
Turn the ignition switch to the

ACC or ON position. Loosen the dif-

ferential valve assembly brake tube

nut at the outlet port on the opposite

side of the brake system that was

wheel balanced, repaired and/or bled

last. Depress the brake pedal slowly to

build line pressure until the pressure
differential valve is moved to a cen-

tralized position and the brake warn-

ing light goes out; then, immediately

tighten the outlet port tube nut.

2.
Check the fluid level in the mas-

ter cylinder reservoirs and fill them to

within 1/4 inch of the top with the

specified brake fluid, if necessary.

3.
Turn the ignition switch to the

OFF position.

4.
Before driving the vehicle, check

the operation of the brakes and be

sure that a firm pedal is obtained.

CLEANING AND INSPECTION

DISC BRAKES

1.
Remove the wheel and tire and

the shoe and lining assemblies as out-

lined in Part 2-2, Section 2.

2.
On all models except Lincoln

Continental, make thickness measure-

ments with a micrometer across the

thinnest section of the shoe and lining.

If the assembly has worn to a thick-

ness of 0.230-inch (shoe and lining to-

gether) or 0.030-inch (lining material

only) at any one of three measuring

locations or if there is more than

0.125 taper from end to end or if lin-

ing shows evidence of brake fluid con-

tamination, replace all (4) shoe and

lining assemblies on both front wheels.

On Lincoln Continental brakes

make three thickness measurements

with a micrometer across the middle

section of the shoe and lining. Take

one reading at each side and one in

the center. If the assembly has worn

to a thickness of 0.231 inch (shoe and

lining together) or 0.066 inch (lining

material only) at any one of the three

measuring locations, replace all (4)

shoe and lining assemblies on both

front wheels.

3.
Check the caliper to spindle at-

taching bolts torque. Torque them to

specification, if required.

4.
To check rotor runout, first

eliminate the wheel bearing end play

by tightening the adjusting nut. After

tightening the nut, check to see that

the rotor can still be rotated.

5.
Clamp a dial indicator to the

caliper housing so that the stylus con-

tact the rotor at a point approximate-

ly 1 inch from the outer edge. Rotate

the rotor and take an indicator read-

ing. If the reading exceeds 0.003 inch

total lateral runout on the indicator,

replace or resurface the disc brake

rotor. The following requirement must

be met when resurfacing disc brake

rotors:
Rotunda Disc Brake Attachment

FRE-2249-2 is the only approved tool

to be used to refinish the disc brake

rotors.
The step-by-step resurfacing

procedure provided with the tool must

be adhered to.

The finished braking surface of the

rotor must be flat and parallel within

0.0007 inch; lateral runout must not

exceed 0.003 inch total indicator

reading, braking surface are to be 80/15

micro inches.

On all models except Lincoln Con-

tinental the minimum limiting dimen-

sion from the inboard bearing cup to

the inboard rotor face and the mini-

mum rotor thickness dimension, must

be observed when removing material

from the rotor braking surfaces. A

ball and gage bar (Rotunda Kit FRE

70160) is to be used when checking

minimum dimensions (Fig. 11).

FALCON-FAIRLANE

MUSTANG-COUGAR

MONTEGO

.046 MAX-**

.119
MAX.

FORD-MERCURY

METEOR - THUNDERBIRD
875
MIN

H1633-A

1.12
MIN.-^

??
— Disc Brake Rotor

Service Limits—All Models Except

Lincoln Continental

On Lincoln Continental models the

minimum limiting dimension (Fig. 12)

from the inboard bearing cup to the
inboard rotor face (dimension B)

and the outboard rotor surface and

the inboard bearing cup (dimension

A),
must be observed when remov-

ing material from the rotor braking

surfaces.

When the runout check is finished

be sure to adjust the bearings as out-

lined in Group 3, in order to prevent

bearing failure.

6. Check the rotor for scoring. Mi-

nor scores can be removed with a

fine emery cloth. If the rotor is ex-

cessively scored, refinish it as out-

lined in step 5 or replace the rotor,

if required.

7.
Visually check the caliper. If the

caliper housing is leaking it should be

replaced. If a seal is leaking the cali-

per must be disassembled and new

.seals installed. If a piston is seazed

in the bore a new caliper housing is

required.

On Lincoln Continental models the

two halves of the caliper assembly

should never be separated. Damage or

failure of one requires replacement of

both as a unit.

Check the brake hoses for signs of

cracking, leaks or abrasion. Replace

them if necessary.

DISC BRAKE SERVICE

PRECAUTIONS

1.
Grease or any other foreign ma-

terial must be kept off the caliper as-

sembly, surfaces of the rotor and ex-

ternal surfaces of the hub during serv-

ice operations. Handling of the rotor

and caliper assemblies should be done

in a way to avoid deformation of the

brake rotor and nicking or scratching

of brake linings.

2.
If a caliper piston is removed for

any reason, the piston seal must be re-

placed.

3.
During removal and installation

of a wheel assembly, exercise care not

to interfere with and damage the cali-procarmanuals.com

02-02-39
Brake System

02-02-39

MAJOR REPAIR OPERATIONS

BRAKE DRUM REFINISHING

Minor scores on a brake drum can

be removed with sandpaper. A drum

that is excessively scored or shows a

total indicator runout of over 0.007

inch should be turned down. Remove

only enough stock to eliminate the

scores and true up the drum. The refi-

nished diameter must not exceed 0.060

inch oversize.

Check the inside diameter of the

brake drum with a brake drum mi-

crometer (Tool FRE-14^1).

If the drum diameter is less than

0.030 inch oversize after refinishing^

standard lining may be installed. If

the drum diameter is 0.030—0.060

inch oversize after refinishing, oversize

lining must be installed.

After a drum is turned down, wipe

the refinished surface with a cloth

soaked in clean denatured alcohol. If

one drum is turned down, the opposite

drum on the same axle should also be

cut down to the same size.

ROTOR REFINISHING

Rotunda Disc Brake Attachment,

FRE-2249-2, is the only recommended

tool to refinish the disc brake rotors.

The step-by-step resurfacing procedure

provided with the tool must be ad-

hered to.

The finished braking surfaces of the

rotor must be flat and parallel within

0.0007 inch; lateral runout must not

exceed 0.003 inch total indicator read-

ing, and the surface finish of the brak-

ing surfaces are to be 80/15 micro

inches. The minimum limiting dimen-

sions (Figs. 11 and 12, Part 2-1) from

the inboard bearing cup to the out-

board rotor face and from the inboard

bearing cup to the inboard rotor face

must be observed when removing ma-

terial from the rotor braking surfaces.

On all models except Lincoln Con-

tinental, the limiting dimensions are to

be measured with a ball and gage bar

(Rotunda Kit FRE-70160).

BRAKE SHOE RELINING

Brake linings that are worn to with-

in 1/32 inch of the rivet head or are

less than 0.030 inch thick (bonded lin-

ing) or have been contaminated with

brake fluid, grease or oil must be re-

placed. Failure to replace worn linings

will result in a scored drum. When it
is necessary to replace linings, they

must also be replaced on the wheel on

the opposite side of the vehicle.

Inspect brake shoes for distortion,

cracks, or looseness. If this condition

exists,
the shoe must be discarded. Do

not attempt to repair a defective brake

shoe.

1.
Wash the brake shoes thoroughly

in a clean solvent. Remove all burrs

or rough spots from the shoes.

2.
Check the inside diameter of the

brake drum with a brake drum mi-

crometer (tool FRE-1431). If the di-

ameter is less than 0.030 inches over-

size,
standard lining may be installed.

If the diameter is 0.030—0.060 inches

oversize, oversize lining should be in-

stalled.

3.
Position the new lining on the

shoe.
Starting in the center, insert and

secure the rivets, working alternately

towards each end. Replacement lin-

ings are ground and no further grind-

ing is required.

4.
Check the clearance between the

shoe and lining. The lining must seat

tightly against the shoe with not more

than 0.008 inch clearance between any

two rivets.

RETAINER - 2B245
DUAL MASTER CYLINDER

DISASSEMBLY

1.
Clean the outside of the master

cylinder and remove the filler cover

and diaphragm. Pour out any brake

fluid that remains in the cylinder. Dis-

card the old brake fluid.

2.*
Remove the secondary piston

stop bolt from the bottom of the cyl-

inder (Figs. 40 and 41).

3.
Remove the bleed screw, iL re-

quired.

4.
Depress the primary piston and

remove the snap ring from the retain-

ing groove at the rear of the master

cylinder bore (Fig. 42). Remove the

push rod and the primary piston as-

sembly from the master cylinder bore.

Do not remove the screw that retains

the primary return spring retainer, re-

turn spring, primary cup and protec-

tor on the primary piston. This assem-

bly is factory pre-adjusted and should

not be disassembled.

5.
Remove the secondary piston as-

sembly. Do not remove the outlet tube

seats,
outlet check valves and outlet

SECONDARY SYSTEM

BRAKE OUTLET
COVER -2166

GASKET-2167

MASTER CYLINDER -2155

SNAP RING -7821

BOOT

PUSH ROD

PRIMARY PISTON

ASSEMBLY - 2169

tTUBE SEAT-

2B220
* SECONDARY PISTON

ASSEMBLY - 2A502

• NOT USED ON POWER BRAKE EQUIPPED VEHICLES

fNOT SERVICED

•REPLACE AS AN ASSEMBLY ONLY

H 1499-B

FIG. 40— Dual Master Cylinder Disassembled—Except Disc Brakesprocarmanuals.com

02-03-03
Specifications

02-03-03

ROTOR REFINISH

The following requirements must be met when resurfacing disc

brake rotors:

Rotunda Disc Brake Attachment FRE-2249-2 is the only approv-

ed tool to be used to ref inish the disc brake rotors. The step-by-

step resurfacing procedure provided with the tool must be adhered

t0" The finished braking surfaces of the rotor must be flat and

parallel within 0.0007
inch;
lateral runout must not exceed 0.003

inch total indicator reading, and the surface finish of the braking

surfaces are to be 15-80 micro inches.
On all models except Lincoln Continental the limiting dimen-

sion from the inner bearing cup to the inner rotor face must be

measured with a ball and gage bar (Rotunda FRE-70160).

On Lincoln Continental models the limiting dimension from the

inboard bearing cup to the inboard rotor face of 0.755 inch
mini-

mum and from the inboard bearing cup to the outboard rotor face

of 0.395 inch minimum must be observed.

TORQUE LIMITS -GENERAL -FT-LBS.

Parking Brake Control Assembly

Mounting Nuts and Bolts

Master Cylinder to Dash Panel Screw

Master Cylinder to Booster

Booster to Dash Panel

Disc Brake Caliper to Spindle Bolts

Disc Brake Rotor Splash Shield

to Spindle

Brake Hose to Caliper Connection Bolt

Caliper Locating Pins

Caliper Stabilizer to Anchor Plate

Bolt

Caliper Brake Shoe Clips

Caliper Bleeder Screws

Wheel Cylinder to Backing Plate Screws

Wheel Cylinder & Backing Plate

Anchor Pin Nut

Rear Brake Backing Plate to Axle

Housing:
Removable Carrier

Integral Type

Front Brake Backing Plate to Spindle

Wheel Cylinder Bleeder Screw

Brake Hose Connection to Front

Wheel Cylinder

Brake Line Connection to Rear Axle

Housing:
Removable Carrier

Integral Type

Hydraulic Tube Connections ®

3/8 x 24

7/16 x 24

1/2 x 20

9/16 x 18

Wheel to Hub and Drum or Hub and

Rotor Nuts
Ford-Mercury

Meteor

Cap Screw

12-19

Nuts 7-11

13-20

13-?0

13-20

Upper ©

110-140

Lower

90-120

9-14

17-25

25-35

8-11

6-10

6-15

10-20

20-30

50-70

IPo

25-40

6-15

12-20

30-40

25-35

10-15

10-15

10-17

10-17

70-115
Fair
lane-

Montego

Falcon

12-25

13-20

13-20

13-20

Upper CD

100-140

Lower

55-75

9-14

17-25

25-35

8-11

6-10

6-15

10 in. Brake

10-20

9 in. Brake

5-7

50-70

20-40

28-35

32-65 ®

Inch-lb.

12-20

12-19

12-19

10-15

10-15

10-17

10-17

4 lug

55-85

5 lug

70-115
Mustang-

Cougar

12-25

13-20

13-20

13-20

Upper ©

100-140

Lower

55-75

9-14

17-25

25-35

8-11

6-10

6-15

10 in. Brake

10-20

9 in. Brake

5-7

50-70

20-40

28-35

32-65 ®

Inch-lb.

12-20

12-19

12-19

10-15

10-15

10-17

10-17

4 lug

55-85

5 lug

70-115
Thunderbird

Continental

Mark III

1218

13-20

13-20

Upper ©

110-140

Lower

90-120

9-14

17-25

25-35

8-11

6-10

6-15

10-20

50-70

6-15

30-40

10-15

10-15

10-17

10-17

70-115
Lincoln

Continental

Dash Panel

10-20

Inst. Panel

712

13-20

13-20

100-140

9-14

7-9

6-15

10-20

30-35

6-15

10-15

10-15

10-17

10-17

70-115

® The upper bolt must be tightened first.

® On front disc brake calipers 6-15 ft-lbs.

® All hydraulic lines must be tightened to the specified torque value and be free of fluid leakage.procarmanuals.com

03-07-04
Ford Design Non-Integral Power Steering System

03-07-04

12.
Stop the engine, and check the

control valve and hose connections for

fluid leaks. Correct the cause of any

leaks.

13.
Check the fluid level, and refill

the reservoir if necessary.

14.
With the engine running check

the position of the steering wheel

when the front wheels are in the

straight-ahead position.Do not make

any adjustments until toe-in is

checked.

15.
Keep the engine running, and

check toe-in. If either toe-in or steer-

ing wheel position is not correct make

all necessary adjustments (Part 3-1) at

the spindle connecting rod sleeves.

16.
Check the effort to turn the

wheels in both directions. The effort

should be about equal in both direc-

tions.

POWER CYLINDER

REMOVAL

1.
Disconnect the two fluid lines

from the power cylinder and allow

them to drain into a container.
CENTER LINK

POWER CYLINDER

Tool- T64P-3590-F

G 1654-A

FIG. 5—Disconnecting Power

Cylinder Stud

2.
Remove the 'pal nut, attaching

nut, washer and the insulator from the

end of the power cylinder rod.

3.
Remove the cotter pin and cas-

tellated nut that secures the power

cylinder stud to the center link.

4.
Disconnect the power cylinder

stud from the center link as shown in

Fig. 5.

5.
Remove the insulator sleeve and

washer from the end of the power cyl-

inder rod.
6. Inspect the tube fittings and the

seats in the power cylinder for nicks,

burrs or damage. Replace the seats in

the cylinder or the tubes as required.

INSTALLATION

1.
Install the washer, sleeve and the

insulator on the end of the power cyl-

inder rod.

2.
Extend the rod as far as possible.

Insert the rod in the bracket on the

frame and compress the rod as neces-

sary to insert the stud in the -center

link. Secure the stud with a castellat-

ed, nut and a cotter pin.

3.
Secure the power cylinder rod

with an insulator, washer, nut and a

pal nut.

4.
Connect each of the two fluid

lines to its respective port in the cylin-

der.

5.
Fill the reservoir to the correct

level.

6. Start the engine and turn the

steering wheel to each end of its travel

several times to cycle the system. Stop

the engine.

7.
Check the fluid level and fill as

necessary. Install the dipstick and cap.

8. Start the engine and check for

leaks.

MAJOR REPAIR OPERATIONS

CONTROL VALVE

DISASSEMBLY

1.
Wipe all fluid and loose dirt

from the outside of the control valve.

2.
Remove the centering spring cap

from the valve housing (Fig. 6).

When holding the control valve for

disassembly, use a soft-jawed vise, and

clamp the valve only around the sleeve

flange to prevent damage to the hous-

ing, spool, or sleeve.

3.
Remove the nut from the end of

the valve spool bolt. Remove the

washers, spacer, centering spring,

adapter, and bushing from the bolt

and the valve housing.

4.
Remove the two bolts that hold

the valve housing and the sleeve to-

gether, and separate the housing from

the sleeve.

5.
Remove the plug from the valve

sleeve.

6. Push the valve spool out of the

centering spring end of the valve hous-

ing, and remove the seal from the

spool.

7.
Remove the spacer, bushing, and

seal from the sleeve end of the valve

housing.
8. Drive the stop pin out of the

travel regulator stop with a punch and

hammer (Fig. 7). Pull the head of the

valve spool bolt tightly against the

travel regulator stop before driving the

pin out of the stop.

9. Turn the travel regulator stop

counterclockwise in the valve sleeve to

remove the stop from the sleeve.

10.
Remove the valve spool bolt,

spacer, and rubber washer from the

travel regulator stop.

11.
Remove the rubber boot and

clamp from the valve sleeve.

12.
Slide the bumper, spring, and

ball stud seat out of the valve sleeve,

and remove the ball stud socket from

the sleeve.

13.
After removing the return port

hose seat, remove the return port re-

lief valve.

14.
After removing the spring plug

and O-ring, remove the reaction limit-

ing valve (Fig. 8).

Tube Seat Replacement

If a hose seat is worn or damaged it

should be replaced. It can be removed

with an Easy-Out tool, or by using a

bolt of appropriate size as a puller.
1.
Tap the existing hole in the hose

seat, using a starting tap of suitable

size.
Be sure to remove all metal chips

from the hose seat port after tapping.

2.
Place a nut and large flat washer

on a bolt of the same size as the

tapped hole. The washer must be large

enough to cover the hose seat port.

3.
Insert the bolt in the tapped

hole,
and using the nut as a puller, re-

move the hose seat.

4.
Place a new hose seat in the

port, and thread a bolt of suitable size

into the port. Tighten the bolt enough

to bottom the seat in the port.

ASSEMBLY

Before assembling the control valve,

coat all parts except the seals with

Automatic Transmission Fluid. Coat

the seals with lubricant COAZ-

19553-A.

1.
Install the reaction limiting

valve, the spring, and the plug.

2.
Install the return port relief valve

and the hose seat.

3.
Insert one of the ball stud seats

(flat end first) into the ball stud sock-

et, and insert the threaded end of the

ball stud into the socket.procarmanuals.com

05-02-04
General Clutch Service

05-02-04

CLEANING AND INSPECTION

RELEASE BEARING

Wipe all oil and dirt off the release

bearing. The bearing is prelubricated

and should not be cleaned with sol-

vent.

Inspect the bearing retainer for

loose spring clips and rivets.

Inspect the release bearing assembly

for burrs which may cause the assem-

bly to drag on the transmission bear-

ing retainer. Any such burrs should be

cleaned up with fine crocus cloth. If

burrs are found, inspect the transmis-

sion input shaft bearing retainer for

evidence of scoring. Any scoring

should be polished out with crocus

cloth. Coat the bearing retainer with a

thin film of lithium-base grease

(C3VY-19586-A). Prior to release

bearing installation, apply a light film

of lithium base grease (C3VY-

19586-A) on both sides of the release

lever fork where it contacts the release

bearing hub and retaining springs.

Apply a light film of lithium base

grease (C3VY-19586-A) plate to the

release bearing surface that contacts

the pressure plate fingers. Carefully

fill the grease groove inside the bear-

ing hub with lithium base grease (no

polyethylene). Clean all excess grease

from the bore of the bearing hub. Ex-

cess grease will be forced onto the

spline by the transmission input shaft

bearing retainer and will contaminate

the clutch disc. Also, care must be

exercised when applying lubricants to

the release bearing, release bearing

hub and the release lever fork to avoid

excessive grease from contaminating

the clutch disc.

Hold the bearing inner race and ro-

tate the outer race while applying

pressure to it. If the bearing rotation

is rough or noisy, replace the bearing.

Most release bearing failures are

caused by improper clutch pedal ad-

justments. If the clutch linkage does

not have enough free travel, the re-

lease bearing will constantly touch the

release fingers and will spin whenever

the engine is running.

When installing a release bearing on

vehicles equipped with separate hub

and bearing, use the tool shown in

Fig. 5.

Release bearing failure can be

caused by the release lever contact

points being out of plane. Check the

wear on the release bearing assembly

where the release lever contacts it.

If one side of the assembly shows

more wear than the other, the release
lever is bent out of plane, or is not

centering on the bracket on the fly-

wheel housing.

Misalignment between the engine

and transmission can cause release

bearing failure. Other symptoms of

misalignment are transmission jump-

ing out of gear, especially third gear,

drive line vibration; excessive wear in

the pilot bushing, excessive clutch disc

spin time resulting in gear clash, and

excessive transmission gear wear.

PRESSURE PLATE AND COVER

Inspect the surface of the pressure

plate for burn marks, scores, or rid-

ges.
Generally, pressure plate resur-

facing is not recommended. However

minor burn marks, scores, or ridges

may be removed. During the resurfac-

ing process, the flatness of the pres-

sure plate must be maintained. If the

pressure plate is badly heat-checked or

deeply scored, replace the pressure

plate and cover assembly. Clean pres-

sure plate and flywheel surfaces with a

suitable solvent, such as alcohol to be

sure the surfaces are free from any oil

film. Do not use cleaners with petrole-

um base, and do not immerse the

pressure plate in the solvent.

Place the plate on the floor, being

careful not to score or scratch the sur-

face.
Force each individual finger

down, then release quickly. If the fin-

ger does not return quickly, a binding

condition is indicated, and the pres-

sure plate should be replaced.

The pressure plate should be lubri-

cated with a lithium-base grease be-

tween the driving lugs and the edges

of the pressure plate openings, as

shown in Fig. 6. Depress the pressure

plate fingers fully, apply the lubricant,

and then move the fingers up and

down until the lubricant is worked in.

Do not apply excessive lubricant.

CLUTCH DISC

Inspect the clutch disc facings for

oil or grease. Eliminate the source of

any oil or grease before replacing the

disc. An excessive amount of grease in

the pilot bushing or release bearing

hub will find its way to the disc fac-

ings.
Too much lubricant in the trans-

mission or a plugged transmission

vent will force the transmission lubri-

cant out the input shaft and onto the

disc facings. Also, rear main bearing

oil seal leaks or oil leaks from the fly-

wheel mounting bolts can contaminate

the clutch disc.
Inspect the clutch disc for worn or

loose facings. Check the disc for worn

or loose facings. Check the disc for

distortion and for loose rivets at the

hub.
Check for broken springs.

Springs loose enough to rattle will not

cause noise when the car is operating.

Replace the disc assembly if any of

these defects are present. Be especially

careful when installing a new disc to

avoid dropping it or contaminating it

with oil or grease.

PILOT BUSHING

Check the fit of the clutch pilot

bushing in the bore of the crankshaft.

The bushing is pressed into the

crankshaft and should not be loose.

Inspect the inner surface of the bush-

ing for wear or a bell-mouthed condi-

tion. If the bushing is worn or dam-

aged, replace the bushing with a new

service bearing. Refer to the applica-

ble engine for the replacement proce-

dure.

C 1785-A

FIG. 5—Installing Clutch Release

Bearing on Hub

PRESSURE PLATE

AND COVER

DRIVING

LUG
FLYWHEEL

C2048-A

FIG. 6—Pressure Plate Lubrication

Pointsprocarmanuals.com

07-01-04
General Transmission Service

07-01-04

taching bolts to the proper torque. If

necessary, replace the gasket.

Check the fluid filler tube connec-

tion at the transmission case or pan.

If leakage is found here, install a new

O-ring or tighten the fitting to the

specified torque.

Check the fluid lines and fittings

between the transmission and the

cooler in the radiator tank for loose-

ness,
wear, or damage. If leakage can-

not be stopped by tightening a fitting,

replace the damaged parts.

Check the engine coolant in the ra-

diator. If transmission fluid is present

in the coolant, the cooler in the radia-

tor is probably leaking.

The cooler can be further checked

for leaks by disconnecting the lines

from the cooler fittings and applying

50-75 psi air pressure to the fittings.

Remove the radiator cap to relieve the

pressure build at the exterior of the oil

cooler tank. If the cooler is leaking

and will not hold this pressure the

cooler must be replaced. Cooler re-

placement is described in the Cooling

System Section of Group 11.

If leakage is found at either the

downshift control lever shaft or the

manual lever shaft, replace either or

both seals.

Inspect the pipe plug on the left

side of the transmission case at the

front. If the plug shows leakage, tor-

que the plug to specifications. If tight-

ening does not stop the leaks, replace

the plug. On a C6 transmission, a TV

pressure plug is also provided on the

right rear side of the case.

When converter drain plugs leak,

remove drain plugs with a six-point

wrench. Coat the threads with FoMo-

Co Perfect Seal Sealing Compound or

its equivalent, and install the plugs.

Torque the drain plugs to specifica-

tion. Fluid leakage from the converter

housing may be caused by engine oil

leaking past the rear main bearing or

from oil gallery plugs, or power steer-

ing oil leakage from steering system.

Be sure to determine the exact cause

of the leak before repair procedures

are started.

Oil-soluble aniline or fluorescent dyes

premixed at the rate of 1/2 teaspoon

of dye powder to 1/2 pint of transmis-

sion fluid have proved helpful in locat-

ing the source of the fluid leakage.

Such dyes may be used to determine

whether an engine oil or transmission

fluid leak is present or if the fluid in

the oil cooler leaks into the engine

coolant system. A black light, how-

ever, must be used with the fluorescent

dye solution.
DISHED OR

FLAT WASHER

" O.D.,
a" STEEL PLATE

5/8"X \W,

DRILL TO SUIT
HEX. HEAD SCREW

3/8"-24 X Vl

HEX. NUT W—
24

WELD

TOGETHER

WING
NUT

>/2"_13
THREAD

CHAIN,
10"
LONG
RUBBER PLUG

1
Vi" DIA. X 2"

LONG Vl"

HOLE THRU

APPROXIMATELY

40 DUROMETER
FLAT WASHER

Vs" O.D.

PLUG

VALVE
STANDARD BOLT

W-13
X 4Vl"

LONG SQUARE

THREAD
END

REMOVE HEAD

AND WELD
TO

WASHER

STANDARD 1/8" FITTING-87971-S FOR

RETAPPED DRAIN PLUG THREADS-USE

1/4" OVERSIZE FITTING-87973-S

D 1067-B
WELD TOGETHER

SECURELY—MUST

NOT LEAK

FIG. 2—Converter Leak Checking Tool

CONVERTER LEAKAGE

CHECK

If there are indications that the

welds on the torque converter are

leaking, the converter will have to be

removed and the following check

made before the unit is replaced.

A leak checking tool (Fig. 2) can be

made from standard parts. The tool

can be used to check all converters.

1.
Install the plug in the converter

(Fig. 3) and expand it by tightening

the wing nut. Attach the safety chains.

2.
Install the air valve in one of the

drain plug holes.

3.
Introduce air pressure into the

converter. Check the pressure with a

tire gauge and adjust it to 20 psi.

4.
Place the converter in a tank of

water. Observe the weld areas for

bubbles. If no bubbles are observed, it

may be assumed that the welds are

not leaking.

ENGINE IDLE SPEED CHECK

Check and, if necessary, adjust the

engine idle speed, using the procedure

given in Group 10.

If the idle speed is too low, the en-

gine will run roughly. An idle speed

that is too high will cause the vehicle

to creep, have harsh engagements and

harsh closed-throttle downshifts.
ANTI-STALL DASHPOT

CLEARANCE CHECK

After the engine idle speed has been

properly adjusted, check the anti-stall

dashpot clearance. Follow the proce-

dure given in Group 10 for checking

and adjusting this clearance.

MANUAL LINKAGE CHECKS

Correct manual linkage adjustment

is necessary to position the manual

valve for proper fluid pressure direc-

tion to the different transmission com-

ponents. Improperly adjusted manual

Tire Pressure Gauge

D1921-A

FIG. 3—Converter Leak Checking

Tool Installationprocarmanuals.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