brake rotor DATSUN B110 1969 Service Repair Manual

r
Brakes

Moreover
In
order
to

prevent
brake

squeahng
a
shIm

IS
Inserted
behind
the

pad

BRAKE
PAD

Replacement

Jack

up
front
UnIt
of
the
vehicle
and
remove

the
front
wheel

Remove

clip
from
the

retaining
pin
and

sup

porting
the
brake

pad
remove
the

retaining

pin
and
COil

spring

Unhook
the

hanger
spring
and
Withdraw
the

brake

pad
and
shim
With
a

pair
of

phers

Note
When
the
brake

pad
IS
removed
do

not

depress
the
brake

pedal
or
otherWise

the

piston
will
come
out

Inspection

Clearance
between
the
brake

pad
and
rotor
IS

adjusted
automatically
Check
the
brake

pad

Fig
115

WIthdraWing
brake

pad
and
shIm
for

wear
after
the
first
6
000
miles

driVing

and

every
3
000
miles
thereafter

Clean
the
brake

pad
With
carbon

tetrachloride

or

gasohne

When
011
and
or

grease
IS

heavIly
stlcked
on

the

pad
or
when
deteriorated
or
deformed
due

to

overheating
replace
the

pad
With
a
new

one

When
thickness
of
the
friction
material

pad

IS
less
than
0
0630
In

replace
Replace
when

total

pad
thIckness
IS
less
than

0
2402
In

Note

Replace
pads
as
a
set

Replacement

at

only
one

position
may
cause
uneven

brake
effect
It

IS
recommended
that

rotation
of

pads
be
made

periodically

Check
the
rotor

Reinstallation

Clean
the

calipers
and

piston
pad
installing

parts

Note
Do
not

use
mineral
oil
Be
careful

not
to

apply
oil

on
the
rotor

Depress
the

pIston
Into
the

cyhnder
so
that

new

pad
can
be
Installed

Note
a
Note
that
brake
fluid

may
over

flow
from
the
reservoir
It
is
recommen

ded
that

operation
be
carried
out

by

loosening
the
breather
to
release
brake

fluid

b
The

piston
can
be

easily
pushed
in

by

hand
But
if

pushed
excessively
the

Fig
116

DepreSSion
piston
A
and
B
Into

cylinder

88

Brakes

groove
of

pIston
goes
insIde
of
seal
as

shown
in

Figure
117
and
the
seal
will
be

damaged
When
the

piston
is

pushed
ex

cesslvely
mto
the

cylinder
remove
the

brake

assembly
disassemble
It

push
out

the

piston
to
the
arrow
direction
as

shown
in

Figure
117
and
reassemble

Install

pad
and
antt

squeal
shim
assemble

the
anti

squeal

spring
and

retaining
pin
and

ecure
them
with

cltp

Install
the
shim

so
that
the

arrow
mark

pOints
the
rotor
forward

rotating
directIOn

Apply
the
COIl

spring
to
the

retaining
pin

which

IS
distanced
from
the

atr
bleeder

111
PlSton
seal

I
2

I
Normal

position
I

Fig
117
Piston

pushIng
In

posllIon

FIg
118
Arrow
mark
on
shim

78
When
the

pad
IS
Installed

depress
the
brake

pedal
several
tl
mes
so
as
to
settle
down
the

pad
In

the

posltton

CALIPER

Removal

Remove
the
brake

pad

DIsconnect
the
brake
tube
from
the
wheel

cyltnder

Remove
the
strut

assembly
and
knuckle
arm

installatIOn
bolt
so
as
to
ease
removal
of
the

cahper
assembly
installatIOn
bolt

Remove
the

cahper
assembly
installatIOn
bolt

and

separate
It

from
the
strut

assembly

Fig
119
RemOVing
strut
assembly
and
knuckle
arm
in

stallatIon
bolt

Fig
120

RemOVing
caliper
assembly
Installallon
bolt

Brakes

Note
The

piston
seal
affects
not

only

Ieakmg
but
also

piston
return

For
this

reason

replace
the

piston
seal
even
If
the

damage
IS
minor

Rotor

Check
the
rotor

and
If
It

shows
cOl
e
ex

cesslvely
out
of
round
and

so
forth

recon

ditIOnIng
by
machInIng
l
l

requIred
If

any
ab

normal
condItIOns
such

as
crack

dl
ltortlOn

and

excessIve
deflectIOn

replace
the
rotor

Standard
rotor

thlckne
ls

03740
In

Fig
123

MeaSUring
deflectoon
of
diSC

Fig
124

Installing
bias

ring
mto

piston
A

72
LImIt
of
I

econdltlOntng
lotOl
In

thlcknes
l

o
3307
In

DeflectIOn
of
the
rotor

Below
0
0012
In

Reassembly

Apply
the
rubber

grea
le
to

cylinder
bore
and

Install
the

pIston
seal

Insert
the
bIas

rIng
to

pIston
A
so
that
the

roundl
lh

portIon
of
bIas

ring
comes
to
the
bot

tom
of

pIston

A

PISTON
B

PISTON
A

Fig
125
Piston
A
and
B

Fig
126

Installing
boot

Brakes

ADJUSTMENT

Front

Disc
Brake

Ordinarily
adJu
tment
IS
not

requIred

because
clearance
between

pad
and
rotor
IS

adjusted

automattcally
by
elasttclty
of
the

pIston
seal

I
iJ

1

el
i

C
1

FIg
142

AdJustmg
rear
brake
shoe
clearance

F
J

I

1

I

r

BRAKE
MASTER

CYLINDER

I
tI
Rear
Brake

Jack

up
the
vehicle
and
remove
the
wheel

ApplYing
your
hand
and
tool
from
reverse
side

of
the
brake
diSC

ttghten
the
brake

adjuster

wedge
clockWise

up
to
such
an
extent
that
the

brake
shoe
comes
Into
contact

With
the
brake

drum

Return
the

adjuster
wedge
properly
so
that

the
brake
shoe
IS

separated
from
the
brake

drum

slIghtly

Turn
the
brake
drum
and
If
the
brake
shoe

Interferes

the
brake
drum

readjust
In
ad

dition

depress
the
brake

pedal
and
make

sure
that
the
brake

operates
effecttvely
and

correctly

Loosen
the

stopper
up
to
such
extent
that
the

brake

pedal
stopper
IS

separated
from
the

pedal

arm

Brake
Pedal

Height

Measure

height
of
the
brake

pedal
head
from

the
dash

panel
and

adjust
the

adjusting
shim

between
the
brake
master

cylInder
and
dash

panel
so
that

height
IS
5
65
In

05mmlOQ197
nl

THICKNESS
0
8
mm

10
0315
0

16mm

100630
n

11
r

l00

Fig
143
Brake

pedal
adjustment

78