DATSUN B110 1969 Service Manual PDF

Brakes

Remove
the
lock

plate
located

Immediately
III

front
of
the
turn

buckle
remove
the

clip
III

the

passenger
compartment
SIde
and
discon

nect
the
front
cable

I
Spong
balancer

G
Wheel

cyhnder

FIg
136

Measunng
slidIng
resistance
Remove
the
hand
brake
lever
cover
Remove

the
lever

assembly
wIth
the
front
cable
con

nected
toward
the

passenger
compartment

SIde

Remove
the

hanger
strap
installatIOn
bolt

withdraw
the
lock

plate
from
the
axle

hOUSIng

bracket
umt

and
disconnect
the

rear
cable

Loosen
the

hanger
strap
umt
nut
and

separate
the

parts
Into
nut

hanger
strap

washer
and
bracket
DIsconnect
the
wheel

cylinder
lever
SIde
brake
cable

Note
Do
not

remove
the
dust
cover
from

the
cable
but
leave
it
installed
on
the

cable

Inspection

Check
the
cable
for

damage
and
other
defec

tlve
condlttons
and

replace
If

reqUIred

Replace
If

shdIng
part
IS
worn

excessively

1

Hand
brake
It
ver

2
able

J

Clip

4
Lock

plate
5
Turn
hUlkle
Hand
brake

adJU
h
r

6
CabJc

7
abk
8
Han
er

trap

9
Return

sprmg

10
Cable
shank

II
Hand
brake
lever

lover

FIg
137
Hand
brake

construction

78

Brakes

Make

sure
that
the
hand

brake
lever
can
be

operated

smoothly
and
that
the
ratchet

pawl

and
teeth

are
not
worn

unusually
or

damaged

With
the
hand
brake

lever

pulled
depress
the

push
button
and

make
sure
that
the

pawl

disengages
the
teeth
when

the

push
button
IS

depressed
0
1969
to

0
2362
In

completely

Make

sure
that
the
cable
dust

cover
1S
not

damaged
or

warped

FIg
138
Removing
turn

buckle

I
Front
cabl

2
Cover

CI
H
nd
brok
1

Ye

Fig
139

Removing
hand
brake
lever
Reinstallation

Remstall
the
hand
brake
m

reverse

sequence

of
removal

notmg
the

folloWIng
matters

Be
careful
not
to

damage
or
tW1St
the
dust

cover

TIghten
the

hanger

strap
and
the
cable

con

nectmg
nut
to

5
8
to

7
2

ft
lb

When

adJustmg
rear
brake
shoe
clearance
be

sure
to
loosen
the

mner
cable

sufficIently

Grease
the

shdmg
parts
w1th
multI

purpose

grease
MIL
G
2108
or

G10924l

o
Lock

plate

Fig
140

Disconnecting
rear
cable
from
rear

axle

housing

i

O
j

0

I
J

i

Ii

0

j

0

0

V

I
Dust

cover

Hanger
strap
washer

Bracket
I

Fig
141

Hanger
strap
mounted
on
rear

axle

hOUSing

77

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

Brakes

Adjusting
shIm
thickness
for
selectIOn

o

0197
In

00315
In

o

0630
In

Note
When

adjusting
be
sure
to
use
ad

Jusbng
sh1ms

having
same
th1ckness
for

upper
and
lower

brake
master

cylinder

IOstallahon
bolts

Upon

completIOn
of

adjusting
shIm

adjust

ment

tighten
the

stopper
down
to
such

an
ex

tent
that

heIght
of
the

pedal
head
IS

5
57

pO
0787

In
and

tighten
the
lock
nut

becurely

Free
travel
of

the
brake

pedal
IS
0
197
to

0591
tn
and
the

stroke
IS
4

72
In

Hand

Brake

Turn

the

turn
buckle

properly
and

adjust

hand

brake
lever

operatmg
stroke

correctly
so

that

operatmg
stroke
IS
3

091
m

16
notches
at

operatIng
force

of
243
to
331
Ib

Upon
com

pletIOn
of

adjustment
be
sure

to

tIghten
the

lock
nut

Upon

completIOn
of
the

adjustment
release

the
hand

brake
lever
and
make

sure
that
the

rear
wheels

are
not

braked

Normal
btroke

3091
In
6

notches

Fig
144

AdJusting
turn
buckle
LImIted
stroke

535
tn
10
notches

The
term
Stroke

means

heIght
from
the

standard

posItIon
8
7
In
above

the
hand
brake

lever
fulcrum

Note

Readjust
hand
brake

stroke
when
it

reaches

the
hmited
stroke
5

35
in

10

notches

BLEEDING

HYDRAULIC

SYSTEM

BleedIng
the

hydrauhc
brake

system
deserves

much
attentIOn

as
It

IS
an
e
senttal
factor
for

regular
servICe
brake

operatIon

As
a
matter

of
fact

durmg
the
brake

serVice

air
IS

lIkely
to

creep
Into
the
CirCUIt

WIth
the

result
that
the
flUId
actIon

IS
altered

and
the

brake

pedal
becomes

spongy
at
the

travel
end

Bleedmg
should
be
carned
out
at
first

WIth

the
master

cylmder
then
from
the

longest

lIne
from
the
master

cylmder
and
then
fimsh

up
With
the
shortest

Note

Always
clear

away
any
dirt
around

master

cylinder
reservoir

cover
before

removing
cover
for

any
reason
Never

depress
pedal
while

brake
drums

are

removed
unless
bleeder

valve
IS

open

Top
up
the

reservOIr
master

cyltnder
With

flUId
of
the

recommended

type

Fig
145

Connecting
Vinyl
hose

to
air
bleeder
rear

79

Brakes

Thoroughly
Wipe
the
bleeder

screw
and
from

any
mud

or
dust

present
so
that
the
outlet

hole

IS
free
from

foreign
matter

Attach
a

VInyl
hose
to
the
wheel

cyhnder

bleeder

screw

Dip
the
end
of
the

VInyl
hose
In

a

Jar
contaInIng
some
brake
flUId

Depress
the
brake

pedal
two
to
three
times

and

keep
the

pedal
fully
depressed

With
the
brake

pedal
fully
depressed
loosen

the
bleeder
screw
exhaust

air
and

rettghten

the
bleeder
screw

qUIckly

Return
the
brake

pedal
slowly

Repeat
the

operatIons
above

Air
WIll
no

longer
come
out
from
the
bleeder

screw
but

brake
flUId

comes
out
When
atr

stIll
eXists
In

brake
flUId
It

appears
whIte
due
to

aIr
bub

ble
Conduct
aIr

bleedIng
on
other
wheel

cyhnders

In
the

same
manner

Note
a
Check
the
reservoir
for
fluid
level

during
bleeding
operation

b
FlUid
withdrawn
in
the

operation
should
not
be
used

refilling
bleeding

again
for

c
When
the
master

cylinder
is
dIsassem

bled

or

replaced
conduct
air

bleeding
on

the
wheel

cylinder
which
is
located
most

near
the
master

cyhnder

d

Ordinarily
air

bleeding
is

performed
in

the

following
sequence

Rear
left
Rear

right
Front
left
Front

right

e
Do
not
return

the
brake

pedal
before

retightening
the
bleeder
screw

TROUBLE
SHOOTING

Condition
Probable
cause

Corretttve
dellon

Spongy
pedal
Au
In
brake
lines
Bleed

Ihoroughly

Swollen
hose
due
to
detenoratlOn
or
use
of

Replace
ho
e
md
bleed
the

system

poor
qualIty
brake
flUid

Use
of
a

brake
flu
d
wIth

a

bOilIng
pomt

Change
wIth
the

spectlied
brake

flUId
dnd

which
15
too

low
bleed

system

ReservOir

filler

cap
vent
hole

clogged
Tins
Clean

reserVOIr
filler

cap
and
bleed
the

promotes
a
Vdcuum
In
master

cylinder
that

system

suckS
In
air

through
rear
seal

Pedal

Yields
under
Detenorated
check
valve
Fit
a
new

check
valve
and
bleed
the

system

shght
pressure

ExterIlalleaks
Check
master

cyhnder
plpmg
and
wheel

cylInder
for
leaks

and
make

necessary
re

pairs

Master

cyhnder
leaks

through

pnmary
cap
Overhaul
master

cyhnder

80

Brakes

Excessive

pedal

travel

All
b
rakes

drag

One
brake
drdgs

Unbalanced
brdkes

Excessive

pedal

pressure
required

poor
brak
es

Brake
chatter

squeak
or

squeal
System
hds
not
been
bled

Improperly
adjusted
clearance

FlUid
level
In

master

cylinder
IS
too
low

Thermal

expansIOn
of
drums
due
to

Qver

hea

lmg

lnsuffiuent
shoe
to
drum
clearance

Weak
shoe
return

springs

Brake
shoe
return
no

free
travel

Seized
master

cylinder
piston

Loose
or

damaged
wheel

bedfmgs

Weak
broken
or
unhooked
brake
shoe

return

spnngs

InsuffiCient
clearance
between
brake
shoe

and
drum

Grease
or
011
on

hnmgs

Seized

piston
In
wheel

cylInder

Tires

Improperly
mtl
lted

Loose
wheel

bearing

Front

suspension
faulty

Grease
mud
or
w
tter
on

Lmmgs

Full
area
of

Immgs
not

Lontaclmg
drums

SLOTed
brake
drums

Dust
on
drums
or
oIl

soLled

Immgs

Weak

shoe
return

springs

Drum
out
of
round

Worn

Itmngs
Bleed
the

system

Adjust
shoe
to
drum
clearance

Full

up
wIth

specIfied
brake
flUId

Bleed
the

system
If

requIred

Allow
drums
to

cool
off
Check
brake
shoe

lImngs
and
drums

Replace
damaged
parts

Adjust
cledrance

Replace
the

spnngs

Adjust
pedal
height

SerVJce
the
master

cyhnder

repla
e
the

pISton
and
bleed
the

syslem

Adjust
Of

replace
wheel

beanngs

Replace
spnng

Adjust
brakes

Clean
brake
mechamsm

repldce
hnmg
and

correct
cause
of

grease
or
011

getllng
on

Lmmg

SerVIce
the
wheel

cyhnder
and
bleed
the

system

Inflate
tires
to
correct

pressure

Adjust
wheel
bearing

Thoroughly
check
and

adlust
all

front
sus

pensIOn
components

Remove
drums
Clean
and

dry
hrongs
or

replace

Replace
shoes

Reface
drums
and
mstall
new

IImngs

Remove

and
clean
drums

thoroughly

ElImmale

oIl
leak

Check

spnngs
and

replace
as

required

Turn
drums
on
lathe

Replace
hrungs

II

i

V
J

f1J
lr
f
t

Jtt

J

V

f
T

lfr
J
t

Yr

1
4

t
7

1
1

t
r

i

t

1

W

lQ

pront

Suspension

Qj
@
@
I
Strut

mounting
Insulator

2
Strut

mounllng
bearing

3

Upper

pnng
o
r
at

4

Oumpu
rubblf

5

DU
tlOVU

6
P
ton
rod

7
F
ool

pring

8
Irut

embly

q
Hub
b
t

mbly

10

5pmdh

II
Ball

JOint

12

Trd
nwu
link

1
J
Tln

lon
rod

14
StJblluLr

15
SU

p
mIOn
mlmbt

r

Fig
146
Front

axle
and
suspension

assembly

I

DESCRIPTION

The
front

suspensIOn
IS
of
a
strut

type
The

shock
absorber
and

spIndle
are
combIned
to

a

Ingle
Unit
whIch

IS

supported
by
the

COIl

spnng
at
the

upper
end
and

by
the
transverse

lInk
at
the
lower
end

The

spIndle
IS
Installed

on
the
bottom
of
the

strut
outer

caSIng
by
means
of

weldIng

A
ball

JOInt
IS
attached
to
the
lower

part
of

the

spIndle
The
ball

JOInt
and
the
transverse

lInk
lower
lInk

are
connected
and

they
are

fitted
to
the

suspensIOn
member

through
a

rubber
b

shIng
The
shock
absorber

mechanism

IS
bUIlt
In
the
strut
outer

caSIng

A
COIl

sprIng
IS

apphed
between
the

upper

sprIng
seat
fitted
to
the

upper
end
of
the

piston
rod
and

spring
seat
welded
to
the
outer

caSIng
These

components
assembled
to

a

SIngle
umt

are
fitted
to
the
chaSSIS
frame
at

their

upper
part
through
the
thrust

beanng

M
eover

the
1ransverse
hnk

supports
the

84
overall
forward
and
backward
strut

movements

by
means
of
the

tensIOn
rod
fitted

to
the

cha
sls
frame

through
a
rubber

bushIng
The
rubber

bushIng
adopts
a

non
lInear

shape
WIth
whICh
the
forward
and

rearward

ngldltles
are

changed
The
tor

slOn
bar

type
stabilIzer

adopted
In
thiS

suspensIOn
system
IS
used

so
that
the
strut

maIntaInS
connectIOn
between
both
Side

struts

Thus
thiS

suspensIOn
mechanism
absorbs

shocks
toward
all
directIOns
Into
the
chaSSIS

effectively
and

effiCIently
the
tensIOn
rod
ab

sorbs
forward
and
backward
shocks
the
strut

absorbs
vertical
shock
and
the
transver

se
lInk
absorbs
shock

applIed
toward

SIdeway

RECOMMENDATIONS

Due
to
the
need
for
a

large
number
of

speCial

tools
and

ahgnment
eqUIpment
It
IS
recom

mended
that

repairs
to
the
front
end
be
left
to

a

completely
e

q
pped

shop

Pront

Suspension

j
I

t

4

l
I

i

r

t
I
J

l
I

hf

c

a
j

ll

l
l
11

J
1
f

t

r

FIg
147
Cross
sectIonal
vIew
of
front
axle
Drum
type
brake

CondltJOn

Vibration
shock
and

shimmYing
of

steenng
wheel

Vibration
Loose

connectIOn
of
the
ser

ratIOn

parts
and
rubber

coupling
parts

defectIve
rubber

couplIng
and
wear
of

each

part
of

hnkage
and
VIbration
of

front
wheels
are
In

many
cases
trans

mitted
to
the

steenng
wheel
ThiS
IS

very

nottceable
when

travellIng
over

rough

road
TROUBLE

SHOOTING

Probable
cause

Improper
au

pressure
of
tIre

Unbalance
and
deformatIon
of
road

wheel

Unevenly
worn

hre
or
insufficient

IIghtemng

Improperly
adlusted
or
worn
front

wheel

beanng

Faulty
wheel

alignment
Corrective
action

Adjust

Correct
the

unbalance

or

replace

Replace
or

ttghten

Adjust
or

tIghten

Adlust

85

Pront

Suspension

Shock
When
the

fronl
wheels
are
travel

Img
over

bumpy
roads
the

play
of
the

steenng
linkage
IS
transnutted
to
the

steering
wheel
This
IS

especially
notice

able
when

travellmg
rough
road

Shlmmymg
Abnormal
VIbratIOns
of
the

front

suspensIOn
group
and
lhe
whole

sleenng
hnkage
which
occur
when

a

specific
speed
IS
attamed

VehIcle

pulls
to

right
or

left

Vhen

driVing
With
hands

off
the

steering

wheel

over
a

flat
road
the
vehicle

gently

swerves
to

nght
or
lefl

Note
A
defective
rear

suspenSion

may

also
be
the
cause
of

tillS
trouble

and
therefore
see
also

the

chapter

dealing
With
the
rear

suspenSion

InstabilIty
of
vehIcle

Stoff

steering
wheel

checking
up
procedure

Jack

up
fronl
wheels

detach
the

steenng

g
nd
o
ra

h
ste

g

h
J

andk

88
Worn

fittmg
transverse
hnk

bushmgs

Insufficiently

tlghten
d

steenng
gear

housmg

Wear
of

steenng
hnkage

Worn

suspensIOn
ball

Jomt

E

xcesslve
backlash

due
to

improper
ad

Justment
of

the
ret
uner

parts

Worn
column

beanng
weakened

column

beanng
spnng
or
loose

clamp

MalfunctIOn
of
shock

absorber
inSIde
the

strut

or
loose
mstdllatJon
bolts

Unbalance
ofvehtcle

level

Improper
au

pressure
of
tire
or

msuf

ficlent

hghtenmg
of

wheel
nuts

Difference
In

height
of

nght
and
left

lIre

treads

Incorrect

adjustment
or
abraSIOn
of

front

wheel

beanng

Collapsed
or

tWisted
front

sprmg

Incorrect
wheel

alIgnment

Incorrect
brake

adjustment

bmdmg

Worn
rubber

bushmgs
for
transverse
link

and
tensIOn
rod

Deformed

steering
linkage
and

suspensIOn

lInk

Unbalanced

vehicle
level

Improper
au

pressure
of
tire

Worn

rubber

bushmgs
for
tmnsverse
Imk

and
tensIOn
rod

Incorrect
wheel

alignment

Worn
or
deformed

steenng
hnkage
and

suspensIOn
link

Incorrect

adjustment
of

steenng
gear

Deformed
unbalanced
wheel

Improper
au

pressure
of
lire

InsuffiCient
lubricants

or

nuxmg
Im

pun
ties
m

sleenng
linkage
or

exceSSively

o

steenng
Imkage
Replace

Rellghten

Replace
defective

p
uts

Replace

Adjust
correctly

Check

and

repdlT
cor

rectly

Replace
or

relighlen

Correl

t
the

unbaldnl
e

Adjust
or

tighten

Replace
tlTes

Adjust
or

replal
c

Repldcc

Adjust

Adlusl

Repl
n
e

Repldc
e

Correcl
the
unbdJdlKe

Adjust

AdlU
t

Adjust

Replace

AdJusl

Correcl
or

replaf
e

Adlust

Repl
msh

grease
or
re

place
the

pa
rt