1969 FORD MUSTANG check engine

02-01-01

02-01-01

GROUP

2

PART
2-1
PAGE

General Brake Service 02-01-01

PART
2-2

Brake System 02-02-01
PART
2-3

Specifications
PAGE

02-03-01

Part
2-1
General Brake Service

COMPONENT INDEX

ANTI SKID CONTROL SYSTEM

Tests

BRAKE BOOSTER

Adjustments

Cleaning
and
Inspection

Tests

BRAKE PEDAL

Free Height Test

Total Travel Test

DISC BRAKES

Cleaning
and
Inspection

Service Precautions

DRUM BRAKES

Cleaning
and
Inspection

HYDRAULIC SYSTEM BLEEDING

PARKING BRAKE CONTROL

Vacuum Release Test

PARKING BRAKE LINKAGE

Adjustment

PRESSURE DIFFERENTIAL VALVE

Adjustment (Centralize)
MODEL APPLICATION
All
Models

01-04

01-07

01-02

01-01

01-01

01-07

01-07

01-08

01-05

01-07
Ford
N/A

01-03

01-03
Mercury
N/A

01-03

01-03
Meteor
N/A

01-03

01-03
Cougar
N/A

N/A

01-03
Fairlane
N/A

N/A

01-03
F

alcon
N/A

N/A

01-03
Montego
N/A

N/A

01-03
Mustang
N/A

N/A

01-03
Lincoln-
Continental
N/A

01-03

01-04
Thunderbird
01-03

01-03

01-04
Continental-
Mark III
01-03

01-03

01-04

A page number indicates that the item
is for the
vehicle listed
at
the head
of the
column.

N/A indicates that the item
is not
applicable
to
the vehicle listed.

1 BRAKE SYSTEM TESTS

Always check
the
fluid level
in the

master cylinder before performing
the

test procedures.
If the
fluid level
is not

within
1/4
inch
of the top of the mas-

ter cylinder reservoirs,
add
Ford

Brake Fluid
—
Extra Heavy Duty —

Part Number C6AZ-19542-A
(ESA-

M6C25-A)
or
equivalent
for all
brake

applications.
The
extra heavy duty

brake fluid
is
colored blue
for
identifi-

cation purposes.
Do not mix low tem-

perature brake fluids with
the
speci-

fied brake fluid.

Should
one of the
wheel brakes
be

locked
and the
vehicle must
be
moved,

open
the
bleeder screw long enough
to

let
out a few
drops
of
brake fluid.

This bleeding operation will release

the brakes
but
will
not
correct
the

cause
of
trouble.
BRAKE PEDAL FREE

HEIGHT
AND
TRAVEL

MEASUREMENTS

With
the
engine running
for
full

power brake operation, measure
the

brake pedal free height,
and
check
the

brake pedal travel with
the use of the

Brake Pedal Pressure Gauge, Tool

WRE-5OO-5O
as
follows:

BRAKE PEDAL FREE HEIGHT

MEASUREMENT

1.
Insert
a
slender, sharp pointed

prod through
the
carpet
and
sound

deadener
to the
dash panel metal
and

measure
the
distance
to the
brake

pedal
(Fig. 1).

2.
If the
position
of the
pedal
is not

within specification, check
the
brake
pedal linkage
for
missing, worn,
or

damaged bushings,
or
loose attaching

bolts
and
replace them,
if
required.

3.
If the
pedal free height
is
still

out
of
specification, check
the
brake

pedal booster
or
master cylinder
to be

sure
the
correct parts
are
installed.

Replace
the
worn
or
damaged parts
as

necessary.

BRAKE PEDAL TRAVEL

MEASUREMENT

1.
Install
a
Brake Pedal Effort

Gauge
on the
brake pedal
pad
(Fig. 2).

2.
Hook
a
steel measuring tape
to

the brake pedal
as
shown
in Fig. 1.

Measure
and
record
the
distance from

the brake pedal free height position
to

the reference point, which
is at the six
procarmanuals.com

02-01-02
Brakes

02*01-02

STEERING
WHEEL RIW

TOEBOARD
OR

DASH
METAL
CHECKING
POINTS

STEERING
COLUMN-

STEEL
MEASURING TAPE

VEHICLE

FORD,
MERCURY AND METEOR

FORD,
MERCURY AND METEOR

FORD,
MERCURY AND METEOR

FORD,
MERCURY AND METEOR

FAIRLANE,
MONTEGO AND FALCON

FAIRLANE,
MONTEGO AND FALCON

MUSTANG
AND COUGAR

MUSTANG
AND COUGAR

THUNDERBIRD

CONTINENTAL
MARK III

LINCOLN
CONTINENTAL
TYPE

NON-POWER
DRUM

POWER
DRUM & DISC

NON-POWER
DISC

POLICE
POWER DISC

NON-POWER
DRUM

POWER
DISC

NON-POWER
DRUM

POWER
DISC

POWER
DISC

POWER
DISC

POWER
DISC
PEDAL
FREE

HEIGHT-A

8.09-7.17

6.18-5.99

8.65-7.82

7.58-6.72

8.13-6.91

7.25-5.71

7.49-6.43

6.25-5.56
PEDAL
FREE

HEIGHT-B"

5.96-5.04

5.96-5.04

6.50-5.50
PEDAL

TRAVEL-C

3.10

3.27

2.18

3.27

2.90

2.35

2.58

1.75

3.00

3.00

2.25

NOTE:AgB
DIMENSION TO BE MEASURED TO SHEET METAL

C
DIMENSION TO BE MEASURED PARALLEL TO THE VERTICAL CENTERLINE OF THE

STEERING
COLUMN WITH A 50 POUND LOAD APPLIED TO THE CENTERLINE OF THE

BRAKE
PEDAL PAD. (CHECKS ON POWER BRAKE VEHICLES MADE WITH ENGINE RUNNING

H1630-A

FIG. 1 — Brake Pedal Height and Travel Measurements

Tool-WRE-l

HI525-A

FIG.
2—Brake Pedal Effort Gauge Installed
o'clock position on the steering wheel

rim.

3.
With the steel tape still hooked

to the brake pedal depress the brake

pedal by pressing downward on the

brake pedal effort gauge. Apply a 50

pound load to the center of the pedal

by observing the pressure gauge, and

measure the distance from the brake

pedal to the fixed reference point on

the steering wheel rim parallel to the

centerline of the steering column.

4.
The difference between the brake

pedal free height and the depressed

pedal measurement under a 50 pound

load should be within the specified

maximum pedal travel service specifi-

cation B in Fig. I.

5.
If the pedal travel is more than

the specified maximum shown in Fig.

1,
dimension C, make several sharp

reverse stops (equivalent to 50 pounds

pedal pressure) with a forward stop

before each. Move the vehicle in rev-

erse and forward for a distance of ap-

proximately ten feet; then, apply the

brakes sharply and hold the brake

pedal down until the vehicle is com-

pletely stopped. This will actuate the

brake self-adjusters. If these stops do

not bring the brake pedal travel within

specification, make several additional

forward and reverse stops as outlined

above.

6. If the second series of stops do

not bring the brake pedal travel within

specification, remove the brake drums

and check the brake adjusters to make

sure they are functioning. Check the

brake linings for wear or damage. Re-

pair or replace all worn or damaged

parts and non-functioning adjusters.

Adjust the brake lining outside diame-

ter to the approximate inside diameter

of the brake drum with Rotunda Tool

HRE-8650 (Fig. 12, Part 2-2).

7.
If all the brake adjusters, brake

drums and linings are functional and

the brake travel is not within specifi-

cations, check the pedal linkage for

missing or worn bushings, or loose at-

tachments. Bleed the brakes and cen-

tralize the differential valve.

POWER BRAKE

FUNCTIONAL TEST

1.
Check the hydraulic brake sys-

tem for leaks or insufficient fluid.

2.
With the transmission in neutral,

stop the engine and apply the parking

brake. Depress the brake pedal several

times to exhaust all vacuum in the

system.

3.
With the engine shut off and all

vacuum in the system exhausted, dep-

ress the pedal, and hold it in the ap-

plied position. Start the engine If theprocarmanuals.com

02-01-03
Brakes

02-01-03

vacuum system is operating, the pedal

will tend to fall away under foot pres-

sure and less pressure will be required

to hold the pedal in the applied posi-

tion. If no action is felt, the vacuum

booster system is not functioning.

If the brake pedal movement feels

spongy, bleed the hydraulic system to

remove air from the system. Refer to

Hydraulic System Bleeding, Part 1,

Section 2.

VACUUM TESTS—VACUUM

RELEASE PARKING BRAKES

Visually check the operation of the

brake linkage as the brake pedal is

depressed. Then, check the operation

of the brake linkage when the manual

release lever is activiated. These

checks should indicate whether the

manual parking brake control linkage

is operating properly or requires re-

pair or adjustment due to inability of

the parking brake to hold against

moderate vehicle movement. Perform

tests of the parking brake system and

controls after making certain the link-

age and manual controls operate

properly.

When testing a parking brake vacu-

um release system, a minimum of 10

inches of vacuum (Hg.) should be

available at all points where vacuum is

applied. This can be checked with a

Rotunda Fuel Pump Tester Gauge

(ARE345) and two Distributor Tester

hose adapters (Marked Q) connected

together with a coupling. This allows

the Fuel Pump Tester Gauge hose to
be adapted to any other vacuum hose

or rubber connector in the vacuum

systems.

Failure to maintain 10 inches of

vacuum (Hg.) during vacuum system

tests could be caused by a loose hose

connection, resulting in a vacuum

leak. When checking for vacuum be-

tween two points, trace the hose along

the entire routing to be sure it is not

crossed with another hose and con-

nected to the wrong connection.

All of the vacuum parking brake

control checks are to be performed

with the engine running at idle speed.

Leaks in the parking brake hoses or

a disconnected or improperly con-

nected hose can usually be found by

listening for a hissing sound along the

hose routings. Under no circumstances

should air pressure be applied to the

vacuum system as the actuator dia-

phragm in the parking brake vacuum

motor may be damaged.

1.
Start the engine and run it at

idle speed. With the transmission shift

control in neutral, depress the parking

brake pedal to apply the parking

brake. Move the transmission shift

control to D range and observe the

parking brake pedal to see that the

pedal moves upward and the parking

brake releases. If the parking brake

releases, the parking brake vacuum

control is working properly.

2.
If the parking brake does not re-

lease, test for vacuum at the steering

column neutral switch port in the

junction block, vacuum lines and the

parking brake release vacuum motor.

Use the Rotunda Vacuum and Fuel
Pump Tester 345. This can be accom-

plished by removing the hose from

each component and attaching it to

the vacuum gauge. Connect two dis-

tributor tester vacuum hose adapters

together with a coupling as a connec-

tor to attach the gauge. A minimum

of ten inches of vacuum is required to

actuate the parking brake vacuum

motor. Do not remove any of the vac-

uum hoses from the junction block

unless the junction block is being re-

placed, as the plastic nipples are thin

and very brittle and damage may re-

sult. If a minimum reading is not

present when checking each of the

aforementioned components, they

must be replaced.

ROAD TEST

A road test should be conducted

only when the operator is sure the

brakes will stop the vehicle.

If the road test reveals one or more

problem conditions, correct all mal-

functions of the vacuum system, brake

booster and hydraulic system prior to

removing brake drums, brake calipers,

brake shoes and linings or backing

plates.

ANTI-SKID CONTROL

SYSTEM TESTS

No adjustments or repairs are to be

performed on the skid control system.

Damaged or worn parts are to be re-

placed.

Refer to Ford Car and Truck Diag-

nosis Manual for Testing procedures.

COMMON ADJUSTMENTS AND REPAIRS

PARKING BRAKE LINKAGE

ADJUSTMENT

FORD, MERCURY, METEOR,

FAIRLANE, MONTEGO,

FALCON, MUSTANG

AND COUGAR

Check the parking brake cables

when the brakes are fully released. If1

the cables are loose, adjust them as

follows:

1.
Fully release the parking brake

pedal by pulling the release lever.

2.
Depress the parking brake pedal

until it is engaged in the first notch of

the control. On a vacuum release

brake, the first notch will be approxi-

mately two inches of pedal travel.

3.
Raise the vehicle. With the

transmission in neutral, turn the ad-

justing nut forward against the equal-

izer (Figs. 3 and 4) until there is 100
L.H. REAR WHEEL CABLE -2A809> 2A791 (2 REQUIRED)

EQUALIZER-TO-ACTUATOR CABLE-2A815

R.H. REAR WHEEL CABLE-2A635

ADJUSTING NUT-2A812

H 1537-C

FIG. 3—Parking Brake Adjustment—Ford, Mercury, Meteor,

Thunderbird and Continental Mark IIIprocarmanuals.com

02-01-04
Brakes

02-01-04

ft-lb breakaway torque.
The
breaka-

way torque
is the
torque required
to

turn
the
rear wheels
the
direction
of

forward rotation with
a
torque wrench

and tool shown
in Fig. 5. The
torque

measurement must
be
made relative
to

the center line
of the
wheel.

4.
Release
the
parking brake,
and

check
to
make sure that
the
brake

shoes return
to the
fully released posi-

tion.

5.
Depress
the
parking brake pedal

to
the
third notch. Under normal
con-

ditions, this will hold
the
vehicle satis-

factorily.

6. Release
the
parking brake again,

and check
as in
step
4.

7.
If the
rear brakes
do not
fully

release, check
the
cables
for
kinks
or

binds.
Free
the
cables
as
required.

8. Lower
the
vehicle. Remove
the

torque wrench
and
tool. Install
the

wheel attaching nuts
and
torque them

to specification. Install
the
wheel

cover.

RETAINER-*^ REAR WHEEL

(CABLE ASSEMBLY

EQUALIZER
NUT

PARKING

BRAKE CABLE

AND CONDUIT

ASSEMBLY-2853
SPRING-2A651

SPRING SEAT-2A616
JAM NUT

H1631-A

FIG. 4—Parking Brake Linkage

Adjustment—Fairlane, Montego,

Falcon,
Mustang
and
Cougar
THUNDERBIRD,

CONTINENTAL MARK
III,

AND LINCOLN

CONTINENTAL

Check
the
parking brake cables

when
the
brakes
are
fully released.
If

the cables
are
loose, adjust them
as

follows:

1.
Fully release
the
parking brake

pedal
by
pushing down
the
manual
re-

lease lever.

2.
Depress
the
parking brake pedal

1
1/4
inch from
its
normal released

position.

3.
Raise
the
vehicle with
the
trans-

mission
in
neutral.

4.
Loosen
the
lock
nut and
turn
the

adjusting
nut
forward against
the

equalizer (Figs.
3 and 6)
until there
is

100 ft-lbs breakaway torque.
The

breakaway torque
is the
torque
re-

quired
to
turn
the
rear wheels
the di-

rection
of
forward rotation with
a tor-

que wrench
and
tool shown
in Fig. 5.

The torque measurement must
be

made relative
to the
centerline
of the

wheel. Tighten
the
lock
nut.

5.
Release
the
parking brake,
and

check
to
make sure that
the
brake

shoes return
to the
fully released posi-

tion.

6. Depress
the
parking brake pedal

until
it is
fully engaged.

7.
Release
the
parking brake again,

and check
as in
step
5.

8. Depress
the
pedal
1/2
inch.
The

brakes should
not
drag.

9.
If the
rear brakes
do not
fully

release, check
the
cables
for
kinks
or

binds.
Free
the
cables
as
required.

10.
Lower
the
vehicle. Remove
the

torque wrench
and
tool. Install
the

wheel attaching nuts
and
torque them

to specification. Install
the
wheel

cover.

Tool-T59L
4204-A,

T65K
4204-A,

T66L-4204-A,

OR

Tool-4421UA

E1897-A
POWER BRAKE MASTER

CYLINDER PUSH
ROD

ADJUSTMENT

The push
rod is
provided with
an

adjustment screw
to
maintain
the cor-

rect relationship between
the
booster

control valve plunger
and the
master

cylinder.
If the
plunger
is too
long
it

will prevent
the
master cylinder piston

from completely releasing hydraulic

pressure
and can
cause
the
brakes
to

drag.
If the
plunger
is too
short
it
will

result
in
excess pedal travel
and an

undesirable clunk
in the
booster area.

The adjustment screw
is set to the

correct height
at the
time
of
original

assembly
of the
power unit. Under

normal service
the
adjustment screw

does
not
require
any
further attention

providing
the
original push
rod
assem-

bly remains
in the
original unit.

If
a
check
of the
push
rod
adjust-

ment
is
necessary,
the
push
rod
length

may
be
verified with
a
push
rod
length

gauge
and
measured with
the
engine

running
to
apply vacuum
to the
boost-

er (Fig.
7).

The push
rod
length verification
and

adjustment
of
Midland-Ross power

brake booster assemblies must
be

done according
to the
following proce-

dure:

REAR WHEEL ADJUSTING NUT

CABLES

EQUALIZER

SPRING

CABLE ASSEMBLY H1632-A

FIG. 6—Parking Brake Linkage

Adjustment—Lincoln Continental

FIG. 5—Checking Parking Brake Breakaway Torque
#16
U.J

\

0.980"

0.995"

FIG. 7—Push

Dimensions
>.S. GAUGE SHEET

i

1
STEEL

H1087-E

Rod Gaugeprocarmanuals.com

02-02-06
Brake
System

02-02-06

SHOE GUIDE (ANCHOR
PIN)
PLATE

SHOE GUIDE (ANCHOR
PIN)
PLATE

WASHER
PRIMARY SHOE
-TC
-ANCHOR

SPRING

PARKING

BRAKE LEVER

RETAINING

CLIP

SECONDARY

SHOE

PRIMARY

SHOE

CABLE HOOK
PARKING

BRAKE CABLE

AND HOUSING
PIVOT

NUT
AUTOMATIC

ADJUSTER

SPRING

H
1649-
A

FIG. 8—Self-Adjusting Brake Assemblies—Typical

BRAKE BOOSTER SYSTEM

This diaphragm-type brake booster

is
a
self-contained vacuum-hydraulic

braking unit mounted
on the
engine

side
of the
dash panel.

The brake booster
is of the
vacuum

suspended-type which utilizes engine

intake manifold vacuum
and
atmos-

pheric pressure
for its
power.

Adjustment
of the
push
rod and re-

placement
of the
check valve
and

grommet
are the
only services permit-

ted
on the
brake booster.
The
booster

unit
is to be
exchanged when
it is in-

spected, checked
and
found
to be de-

fective.

PARKING BRAKE

An independent foot-operated park-

ing brake control actuates
the
rear

wheel brake shoes through
a
cable

linkage.
On all
models except Ford,

Mercury, Meteor, Thunderbird
and

Continental Mark
III, the
operating

cable
is
routed from
the
parking brake

control assembly
to the
equalizer.
On

Ford, Mercury, Meteor, Thunderbird,

and Continental Mark
III, the
operat-

ing cable
is
routed from
the
parking

brake control assembly
to the
actuator

assembly.
An
intermediate cable
con-
nects
the
actuator
to the
equalizer.

The rear brake cables connect
the

equalizer assembly
to the
parking

brake lever
at
each rear secondary

shoe
(Fig. 8).

Two types
of
brake pedal control

are used.
The
automatic (vacuum)
re-
lease type
(Fig. 9) is
used
on the Mer-

cury, Ford
LTD,
Meteor LeMoyne,

Thunderbird, Continental Mark
III

and Lincoln Continental models.
All

other models
use the
manual release-

type
(Fig. 10).

On
the
automatic-type,
the
vacuum

PISTON
ROD

VACUUM POWER UNIT

RELEASE LEVER

PEDAL

H 1635-A

FIG. 9—Parking Brake Control Assembly

With Automatic Release—Typicalprocarmanuals.com

02-02-07
Brake System

02-02-07

ANTI-SKID CONTROL SYSTEM

RELEASE PAWL CAM PIN

RELEASE PAWL CAM LEVER

RELEASE CABLE

H
1636-
A

FIG. 10—Parking Brake Control Assembly

With Manual Release—Typical

power unit with mounting bracket is

riveted to the control assembly. The

vacuum actuated piston within the

unit is connected by a rod to the

upper end of the release lever (Fig. 9).

The lower end of the release lever ex-

tends out for alternate manual release
in the event of vacuum power failure

or for optional manual release at any

time.

Hoses connect the power unit and

the engine manifold to a vacuum re-

lease valve in the transmission neutral

safety switch.
The anti-skid control system con-

sists of three major components (Fig.

39).
Mechanically driven electromag-

netic sensors at each rear wheel; an

electronic control module mounted

under the glove box; a vacuum pow-

ered actuator attached to a bracket on

the inside of the right front frame rail

under the toe board.

The sensors consist of steel rings

having teeth on their outer diameters,

pressed on each axle shaft just out-

board of the wheel bearing. The teeth

rotate past corresponding teeth on the

inside diameter of stationary steel

rings mounted in the bearing retain-

ers.
Also mounted in the retainers, are

ring-shaped permanent magnets and

coils of wire. Two wires from each

sensor connect the sensors to the con-

trol module.

The control module consists of solid

state electronic components sealed in

a container. It is connected to the sen-

sors and to a solenoid on the actuator.

The actuator is similar to a vacuum

brake booster and consists of three

parts.
A chamber divided by a vacuum

suspended diaphragm; a hydraulic cyl-

inder connected to the diaphragm; and

a solenoid connected electrically to the

control module.

IN-VEHICLE ADJUSTMENTS AND REPAIRS

After any brake service work, ob-

tain a firm brake pedal before moving

the vehicle. Riding the brake pedal

(common on left foot application)

should be avoided when driving the

vehicle.

BRAKE SHOE ADJUSTMENTS—

DRUM BRAKES

The hydraulic drum brakes are

self-adjusting and require a manual

adjustment only after the brake shoes

have been relined, replaced, or when

the length of the adjusting screw has

been changed while performing some

other service operation. The manual

adjustment is performed with the

drums removed, using the tool and the

procedure detailed below.

When adjusting the rear brake

shoes,
check the parking brake cables

for proper adjustment. Make sure that

the equalizer operates freely.
To adjust the brake shoes:

1.
Use Rotunda Tool HRE 8650,

(Fig. 11) to determine the inside diam-

eter of the drum braking surface.

2.
Reverse the tool as shown in Fig.

11 and adjust the brake shoe diameter

to fit the gauge. Hold the automatic

adjusting lever out of engagement

while rotating the adjusting screw, to

prevent burring the screw slots. Make

sure the adjusting screw rotates freely.

If necessary, lubricate the adjusting

screw threads with a thin, uniform

coating of MIC-100-A.

3.
Rotate Tool HRE 8650 around

the brake shoes to be sure of the set-

ting.

4.
Apply a small quantity of high

temperature grease to the points

where the shoes contact the backing

plate, being careful not to get the lu-

bricant on the linings.

5. Install the drums. Install Tinner-

man nuts and tighten securely.

6. Install the wheels on the drums
and tighten the nuts to specification.

7.
Complete the adjustment by

applying the brakes several times with

a minimum of 50 lbs pressure on the

pedal while backing the vehicle. After

each stop the vehicle must be moved

forward.

8. After the brake shoes have been

properly adjusted, check the operation

of the brakes by making several stops

while operating in a forward direction.

WHEEL CYLINDER REPAIR-

DRUM BRAKE

Wheel cylinders should not be di-

sassembled unless they are leaking or

unless new cups and boots are to be

installed. It is not necessary to remove

the brake cylinder from the backing

plate to disassemble, inspect, or hone

and overhaul the cylinder. Removal is

necessary only when the cylinder is

damaged or scored beyond repair.procarmanuals.com

02-02-10
Brake System

02-02-10

brake adjustment then connect the

parking brake cable to the parking

brake lever (Fig. 8).

4.
Install the shoe guide (anchor

pin) plate on the anchor pin when so

equipped.

5.
Place the cable eye over the an-

chor pin with the crimped side toward

the backing plate.

6. Install the primary shoe to an-

chor spring (Fig. 15).

H1391-A

FIG. 75—Retracting Spring

Installation

7.
Install the cable guide on the

secondary shoe web with the flanged

hole fitted into the hole in the second-

ary shoe web. Thread the cable

around the cable guide groove (Fig.

8).

It
is
imperative that
the
cable
be

positioned
in
this groove
and not be-

tween
the
guide
and the
shoe
web.

8.
Install the secondary shoe to an-

chor spring with the tool shown in

Fig. 15.

Be certain that
the
cable
eye is not

cocked
or
binding
on the
anchor
pin

when installed.
All
parts should
be
flat

on
the
anchor
pin.
Remove
the
brake

cylinder clamp.

9. Apply high-temperature grease

(MIC-100-A) to the threads and the

socket end of the adjusting screw.

Turn the adjusting screw into the ad-

justing pivot nut to the limit of the

threads and then back off 1/2 turn.

Interchanging
the
brake shoe
ad-

justing screw assemblies from
one
side

of
the
vehicle
to the
other would cause

the brake shoes
to
retract rather than

expand each time
the
automatic
ad-

justing mechanism operated.
To pre-

vent installation on the wrong side of

the vehicle, the socket end of the ad-

justing screw is stamped with an R or

L (Fig. 16). The adjusting pivot nuts

can be distinguished by the number of

grooves machined around the body of

the nut. Two grooves on the nut indi-

cate a right thread; one groove indi-

cates a left thread.
10.
Place the adjusting socket on

the screw and install this assembly be-

tween the shoe ends with the adjusting

screw toothed wheel nearest the sec-

ondary shoe.

11.
Hook the cable hook into the

hole in the adjusting lever. The adjust-

ing levers are stamped with an R or L

to indicate their installation on right

or left brake assembly (Fig. 16).

12.
Position the hooked end of the

ADJUSTING LEVER

IDENTIFICATION LINES

H1143-C

FIG. 16—Adjusting Screw
and

Lever Identification

adjuster spring completely into the

large hole in the primary shoe web.

The last coil of the spring should be at

the edge of the hole. Connect the loop

end of the spring to the adjuster lever

hole.

13.
Pull the adjuster lever, cable

and automatic adjuster spring down

and toward the rear to engage the

pivot hook in the large hole in the sec-

ondary shoe web (Fig. 8).

14.
After installation, check the ac-

tion of the adjuster by pulling the sec-

tion of the cable between the cable

guide and the anchor pin toward the

secondary shoe web far enough to lift

the lever past a tooth on the adjusting

screw wheel. The lever should snap

into position behind the next tooth,

and release of the cable should cause

the adjuster spring to return the lever

to its original position. This return ac-

tion of the lever will turn the adjusting

screw.one tooth.

If pulling the cable does not pro-

duce the action described, or if the

lever action is sluggish instead of posi-

tive and sharp, check the position of

the lever on the adjusting screw

toothed wheel. With the brake in a

vertical position (anchor at the top),

the lever should contact the adjusting

wheel 3/16 inch (plus or minus 1/32

inch) above the centerline of the

screw. If the contact point is below

this centerline, the lever will not lock

on the teeth in the adjusting screw

wheel, and the screw will not be turned
as the lever is actuated by the cable.

To determine the cause of this con-

dition:

a. Check the cable end fittings. The

cable should completely fill or extend

slightly beyond the crimped section of

the fittings. If it does not meet this

specification, possible damage is indi-

cated and the cable assembly should

be replaced.

b.
Check the cable length. On

Ford, Mercury, Meteor, Thunderbird,

Continental Mark III, and Lincoln

Continental models, the cable should

measure 11 1/8 inches (plus or minus

1/64 inch) from the end of the cable

anchor to the end of the cable hook.

On Fairlane, Montego, Falcon,

Mustang, and Cougar models the

cable should measure 8 13/32 inches

on 9 inch brakes or 9 3/4 inches on

10 inch brakes from the end of the

cable anchor to the end of the cable

hook.

c. Check the cable guide for dam-

age.
The cable groove should be paral-

lel to the shoe web, and the body of

the guide should lie flat against the

web.
Replace the guide if it shows

damage.

d. Check the pivot hook on the

lever. The hook surfaces should be

square with the body of the lever for

proper pivoting. Replace the lever if

the hook shows damage.

e. See that the adjusting; screw

socket is properly seated in the notch

in the shoe web.

WHEEL CYLINDER

DRUM BRAKE

REMOVAL '

1.
Remove the wheel and the drum.

2.
Remove the brake shoe assem-

blies,
following procedures outlined in

this section.

3.
Disconnect the brake line from

the brake cylinder Figs. 17 thru 21.

On
a
vehicle with
a
vacuum brake

booster,
be
sure
the
engine
is
stopped

and there
is no
vacuum
in the
booster

system before disconnecting
the hy-

draulic lines.

To disconnect the hose at a front

cylinder, loosen the tube fitting that

connects the opposite end of the hose

to the brake tube at a bracket on the

frame. Remove the horseshoe-type re-

taining clip from the hose and brack-

et, disengage the hose from the brack-

et, then unscrew the entire hose as-

sembly from the front wheel cylinder.

At a rear cylinder, unscrew the tubeprocarmanuals.com

02-02-12
Brake System

02-02-12

TUBE ASSY. REF.

2 A 040

TUBE ASSY. REF.

2B113-B

PRESSURE

IMPULSE VALVE

PROPORTIONING
TUBE

>Y.
2B253 ASSY REF TUBE

/W W '
Kth#
2263 ASSY. R.H. REF.

TUBE

2B112-E
2264 ASSY. L.H. REF.

2B329

ASSY. REF.

HOSE

C8OA-2B218-C ASSY.L.H.

C80A-26171-D ASSY.R.H.

2B269 ASSY. REF.

VIEWZ

INSTALLATION-DISC BRAKE ONLY
BEND CLIP TO RETAIN

TUBE AS SHOWN
-TUBE

VIEW IN CIRCLE T

382365-S36
WASHER

8M-2149

TUBE-2A040
INSTALLATION-DISC BRAKES SAME AS

DRUM BRAKES AND MAIN VIEW

EXCEPT AS SHOWN
TUBE-2267 R.H.

TUBE-2B253

TUBE 2B329

PRESSURE DIFFERENTIAL

VALVE

TUBE 2B329

VIEW IN

CIRCLE U

TYPICAL ^,

CES^^
CLI

BOLT-

VIEW IN CIRCLE N
WASHER

34808-S8

PART OF AXLE

VENT ON STATION

WAGON ONLY

VENT ASSEMBLY

TUBE ASSEMBLY-2265

STANDARD AND POWER DRUM

3RAKES TUBE ASSEMBLY-2B1T2

POWER DISC BRAKES

MANUAL DISC

TUBE-2263 R.H.
3 REQUIRED

BOLT- 3 REQUIRED

CHECK BRAKE HOSE CLEARANCE „

TO ALL COMPONENTS IN
2A448"

METAL/METAL JOUNCE AND

METAL/METAL REBOUND-
TUBE-2267

ARMOR-390, 428 ENGINES ONLY

8 CYLINDER ENGINE REAR AXLE ONLY

TUBE ASSEMBLY-2268 L.H.

PRESSURE DIFFERENTIAL

VALVE

- GROMMET- 2

jl^REQUIRED

EWYN

TUBE
VIEW P

ROUTING FOR STATION WAGON ONLY

TUBE-22.S5

TUBE-2263 R.H. 2264 L.H.

VIEW IN CIRCLE Y

TYPICAL 2 PLACES
CHECK BRAKE HOSE CLEARANCE TO ALL

COMPONENTS IN METAL/METAL JOUNCE,

METAL/METAL REBOUND AND FULL

INSIDE AND OUTSIDE TURNS

VIEWX

TYPICAL 2 PLACES

DRUM BRAKES

TUBE-2263 R.H

2264 L.H.
VIEW IN CIRCLE U

TYPICAL 4 PLACES

HOSE-2A448

BRAKE HOSE-2078

GASKET-2149 2 REQUIRED

VIEW IN CIRCLE W

TYPICAL 2 PLACES

DRUM BRAKES
LIP
REINFORCEMENT ASSEMBLY-2B222

APPLY ESB-M4632-A SEALER AROUND

STUDS AND SCREW HOLE ON

FLOOR PAN SIDE

TUBE
TUBE ASSEMBLY-226J)

VIEW R

TUBE

VIEW IN CIRCLE M

POWER DISC BRAKES

BRAKE HOSE MUST BE ASSEMBLED

WITH WHEELS STRAIGHT AHEAD.

STRIPE ON HOLE HOSE ASSEMBLY

MUST SHOW NO EVIDENCE OF TWIST.

H 1559-C

—Service Brake
System—Fairlane,
Montego
and
Falconprocarmanuals.com