Ford Thunderbird 1966 User Manual

2-7
PART
2-2
BRAKE
SYSTEM
Section
Page
Section
Page
Description
and
Operation 2-7
Disc Brake
Assemblies
2-7
Hydraulic
Self-
Adjusting
Brake
System 2-8
Booster
System 2-9
Parking
Brake
2-9
In-Car
Adjustments
and
Repairs 2-10
Disc Brake
Caliper
Assembly
2-11
Front
Wheel
Hub and Rotor
Assembly
-
Disc Brakes
2-11
Disc
Brake
Rotor
Splash Shield
2-12
Proportioning
Valve
2-12
Brake
Shoe
Adjustments
2-12
Rear Brake Drum
2-13
Brake
Shoes
and
Adjusting
Screw 2-13
Disc Brake Shoe and
Lining
Replacement 2-13
Wheel Cylinder
Repair 2-14
Wheel Cylinder Replacement
2-15
Brake
Carrier Plate
Replacement
2-15
Hydraulic
Lines
2-15
Brake
Tube
Replacement
2-15
Brake
Hose Replacement
2-15
Removal
and
Installation
2-16
Master Cylinder
-
Power
Brakes
2-16
Booster Unit
2-17
Brake
Pedal
-
Automatic
Transmission
2-17
Parking
Brake
Control
Assembly
2-18
Parking
Brake Vacuum
Power Unit 2-19
Parking
Brake
Equalizer
to
Control Cable
2-19
Parking
Brake Equalizer to
Rear
Wheel
Cable
2-19
Major Repair Operations
2-20
Brake Drum
Refinishing
2-20
Brake
Shoe
Relining
2-20
Master
Cylinder
2-20
DESCRIPTION AND
OPERATION
The 1966
Thunderbird
brake system
employs
disc
brakes
on the front
wheels
and
single
anchor,
internal ex
panding
and
self-adjusting
brake as
semblies
on the
rear
wheels. The
sys
tem is
powered
by
a
vacuum
booster
as
standard
equipment.
The
master
cylinder converts
physi
cal
force
from
the brake
pedal and
booster
into
hydraulic
pressure
against
the
pistons
in the
calipers
(front
wheels)
or
in
the
wheel
cylinders
(rear
wheels).
The
pistons
in
turn
convert
hydraulic
pressure
back
into
physical
force
at
the discs
and
brake
shoes.
DISC
BRAKE
ASSEMBLIES
-FRONT
WHEELS
RELATION
AND
FUNCTION
OF
COMPONENT
PARTS
The
disc
brake
is
a
fixed
caliper,
opposed
piston,
non-energized,
ven
tilated
disc
type,
actuated
by
a
hy
draulic
system
(Fig.
1).
There is no
lateral movement
of either
the disc
(rotor)
or the
caliper.
The
caliper
as
sembly
consists of
two
caliper
housings bolted
together with each
half
containing
two
cylinder
bores
of
1 15/16
inch diameter. Each cylinder
bore contains
a piston with an
at
tached molded
rubber
dust boot
to
seal
the cylinder
bore from
con
tamination*
(Fig. 2).
Square-section
rubber
piston
seals are positioned in
grooves
in
the
cylinder bores.
The
piston seals
perform three
im
portant tasks:
1.
They
provide hydraulic
sealing
between the
cylinders and
pistons.
2.
They
return
the
pistons to
released
position,
when
hydraulic
pressure is
released.
3.
They
maintain the shoes in
cor
rect
adjustment
at
all
times
(compar
able to
the automatic
adjusters in
drum-type brakes.
The cylinders
are
connected
hy-
draulically
by
means
of
internal
pas
sages
in
the
caliper housings and an
external
transfer
tube between the
two
halves
of the
caliper
assembly.
One
CALIPER
SPLASH
SHIELD
EXTERNAL TRANSFER
HUB AND
ROTOR
ASSEMBLY
DER
SCREW
H1368-B
FIG. 1
Disc
Brake
Assembly
bleeder
screw
and
fluid
inlet
fitting
is
provided on
each
caliper
assembly.
The
shoe
and
lining
assemblies
are
located in
between
parallel
machined
abutments
within
the
caliper,
and
are
supported
radially
by
tabs
on
the

Ford Thunderbird 1966 Specifications

General

Brand	Ford
Model	Thunderbird 1966
Category	Automobile
Language	English