roof rack FORD MUSTANG 1969 Volume One Chassis

02-02-08
Brake System

02-02-08

Tool-HRE-8650

JUST SET TO DRUM

DIAMETER HERE . . .
FIND CORRECT BRAKE

SHOE DIAMETER HERE

H1416-A

FIG.
7
7—Adjusting Brake Shoes Using Tool HRE-8650

BOOT

BOOT

PISTON
. BLEEDER .

CYLINDER
SCREW RETURN SPRING PIST0N

H1385-B

FIG. 72—Brake Wheel Cylinder—Typical

DISASSEMBLY

1.
Remove the links and the rubber

boots from the ends of the brake cyl-

inder. Remove the pistons, cups, and

return spring from the cylinder bore

(Fig. 12).

2.
Remove the bleeder screw from

the cylinder.

INSPECTION

1.
Wash all parts in clean brake

fluid. Dry with compressed air.

2.
Replace scored pistons. Always

replace the rubber cups and dust

boots.
3.
Inspect the cylinder bore for

score marks or rust. If either condi-

tion is present the cylinder bore must

be honed. However, the cylinder

should not be honed more than 0.003

inch beyond its original diameter.

4.
Check the bleeder hole to be sure

that it is open.

ASSEMBLY

1.
Apply a light coating of heavy-

duty brake fluip! to all internal parts.

2.
Thread the bleeder screw into the

cylinder and tighten securely.

3.
Insert the return spring, cups,

and pistons into their respective posi-

tions in the cylinder bore (Fig. 12).
Place a boot over each end of the cyl-

inder. Bleed the brake system.

HYDRAULIC LINE REPAIR

Steel tubing is used throughout the

brake system with the exception of the

flexible hoses at the front wheels and

at the fear axle housing brake tube

connection (Figs. 17 thru 21).

Always bleed the applicable pri-

mary or secondary brake system after

primary or secondary brake system

hose or line replacement. Centralize

the pressure differential valve after

bleeding the system.

BRAKE TUBE

REPLACEMENT

If a section of the brake tubing be-

comes damaged, the entire section

should be replaced with tubing of the

same type, size, shape and length.

Copper tubing should not be used in a

hydraulic system. When bending

brake tubing to fit underbody or rear

axle contours, be careful not to kink

or crack the tube.

All brake tubing should be double

flared properly to provide good leak-

proof connections. Clean the brake

tubing by flushing with clean brake

fluid before installation.

When connecting a tube to a hose,

tube connector, or brake cylinder,

tighten the tube fitting nut to specified

torque with Milbar tool 1112-144 or

equivalent.

BRAKE HOSE

REPLACEMENT

A flexible brake hose should be re-

placed if it shows signs of softening,

cracking, or other damage.

When installing a new front brake

hose,
position the hose to avoid con-

tact with other chassis parts. Place a

new copper gasket over the hose fit-

ting and thread the hose assembly into

the front wheel cylinder. Engage the

opposite end of the hose to the brack-

et on the frame. Install the horsesho-

e-type retaining clip, and connect the

tube to the hose with the tube fitting

nut (Figs. 17 thru 21).

A rear brake hose should be in-

stalled so that it does not touch the

muffler outlet pipe or shock absorber.

Thread the hose into the rear brake

tube connector. Engage the front end

of the hose to the bracket on the

frame. Install the horseshoe-type re-

taining clip, and connect the tube to

the hose with the tube fitting nut.procarmanuals.com

TUBE ASSEMBLY-2B255

VIEW IN CIRCLES V

FUEL LINE

CLIP (4 REQUfRED)
PART OF AXLE ASSEMBLY

HOSE ASSEMBLY-2A448

FRAME

TUBE ASSEMBLY-2267

CHECK BRAKE HOSE

CLEARANCE TO ALL

COMPONENTS IN

METAL/METAL JOUNCE

AND METAL/METAL

REBOUND.
CLIP (3 REQUIRED)

TUBE ASSEMBLY-2267

BRAKE BOOSTER-2B195

HOSE-2A047
TUBE ASSEMBLY-2B255

TUBE ASSEM3LY-2420

[

TUBE-2263-C *
TUBE ASSEMBLY BRAKE TUBE

2268 ASSEMBLY

2267 R.R. BRAKE TUBE

ASSEMBLY
TUBE ASSEMBLY

2263

VIEW IN CIRCLES X

COVER-2A487

PEDAL PAD-2457

BRAKE PEDAL-2455

USE EXISTING NUTS

TUBE ASSEMBLY

2325r
TUBE ASSEMBLY

2264 L.H. 2263 R.H.
TUBE ASSEMBLY

2B171-C R.H.

23218-C L.H.
BOLT-381877-S2

(3REQUIRED)

CLIP-382088-S2

(3 REQUIRED)

ALL CONNECTIONS, TUBES, MASTER

CYLINDER AND FITTINGS MUST BE

FREE OF FLUID LEAKAGE WHEN

CHECKED AFTER ROAD TEST.
TUBE ASSY.-2A040

TUBE ASSY.-2B253
PRESSURE IMPULSE

VALVE

ALL BRAKE LINES, FITTINGS AND

FLEXIBLE HOSES MUST BE KEPT FREE

OF FOREIGN MATERIAL BEFORE

AND DURING ASSEMBLY OPERATIONS.
TUBE ASSEMBLY

2B255

PROPORTIONING

VALVE-2B328
GASKET-2149

(4 REQUIRED)

#LUBRICATE PIVOTS

CLIP-381799-S2

2REQUIRED

180°APART
BE LEAKPROOF

TUBE ASSEMBLY-2B255
6

w

Q

7T

3

CHECK BRAKE HOSE

CLEARANCE TO ALL COMPONENTS

IN METAL/METAL JOUNCE

METAL/METAL REBOUND AND FULL

INSIDE AND OUTSIDE TURNS.

BOLT

2 REQUIRED

TUBE ASSY. -2264

BRACKET ASSY.-2B328
O

6

H 1540-C

FIG. 20—Service Brake System—Thunderbird, Continental Markprocarmanuals.com