Specifications
PART
2-2-Bra
ke
System-
2-1
7
be
done in a way to avoid deiorma-
tion
of the brake rotor and nicking
or scratching of brake linings.
3.
If the square sectioned rubber
piston seals are worn or damaged,
they should be replaced immediately.
4.
During removal and installation
ADJUSTING
SCREW
IDENTIFICATION LINES
H1143-0
FIG.
16-Adjusting Screw and Lever
Identification
e.
See that the adjusting screw
socket is properly seated in the notch
in the shoe web.
DISC BRAKE SHOE AND
LINING REPLACEMENT
DISC BRAKE SERVICE
PRECAUTIONS
1.
After any brake service work,
pump the brake pedal to obtain a
firm pedal before moving the car.
Riding the brake
pedal (common on
left foot applications) should be
avoided when driving the car.
2.
Grease or any other foreign
material must be kept off the caliper
assembly, surfaces of the rotor and
external surfaces of the hub during
service operations. Handling of the
rotor and caliper assemblies should
of a
wheei assembly, exercise care
not to interfere with and damage the
caliper splash shield, the bleeder
screw fitting or the transfer tube.
5.
Front wheel bearing end play is
critical and must be within specifica-
tions.
6.
Be sure the vehicle is centered
on the hoist before servicing any front
end components, to avoid bending or
damaging the rotor splash shield on
full right or left wheel turns.
7.
The bridge bolts joining the two-
caliper housings should not be re-
moved or loosened.
8.
The proportioning valve should
not be disassembled or adjustments
attempted on it.
9.
The wheel and tire must be re-
moved separately from the brake ro-
tor, unlike drum brakes where the
wheel, tire and drum are removed as
a unit.
REMOVAL
Refer to Fig. 17.
1.
Remove the wheel and tire
from the hub and rotor assembly.
Be
careful to avoid damage or in-
terference with the bleeder screw fit-
ting ortransfer tube.
2.
Remove the two bolts that
attach the caliper brake shoe retain-
ing clips, and remove the clips (Fig.
17).
3.
To facilitate removal and in-
stallation of the shoe and lining as-
semblies, the pistons must be pushed
into their bores. Apply a steady in-
ward pressure against each shoe and
lining assembly toward its respective
caliper housing on each side of the
rotor (Fig.
6).
Maintain the pressure
for at least a minute. If the pistons
will not go in easily, force them in
with water pump pliers.
4.
Grasp the metal flange on the
outer end of the shoe with two pairs
of pliers and pull the shoe out of the
caliper (Fig.
18).
INSTALLATION
Refer to Fig. 17.
When new shoe and lining assem-
blies are being installed to replace
worn linings, it will be necessary to
push the pistons all the way into the
caliper bore. This will displace fluid
from the caliper into the master
cylinder reservoir. Check the primary
(front) brake system reservoir level
and remove fluid to approximately
half-full before replacing brake shoes.
This will prevent overflow.
Do not
re-use the removed fluid.
1.
Position a new shoe and lining
assembly on each side of the rotor
so that the lining faces the rotor.
CALIPER PARTS-2BI2O-R.H. -2BI2I-L.H.
TRANSFERTUBE
UTBOARD HOUSING
20990-5
CALIPER
ASSEMBLY
WHEEL-1007
2
1
3105-R.H.
3lOh.L.H.
H1401-C
FIG.
17-Disc Brake Disassembled