lock DATSUN B110 1973 Service Service Manual

CHASSIS

Reassembly
and
reinstallation

Reassemble
and

reinstall
the
rear
brake
in

reverse

sequence
of

disassembly
and
removal

nuting
the

follow

ing
matters
When

reassembling
refer
to
the
notes
for

front
drum
brake

1

Measure
the

wheel

cylinder
sliding
resistance
with
the

brake
tube
disconnected
as
shown
in

Figure
BRM
and

make
sure
that
the

sliding
resistance
is
in

range
from
2
to

7

kg
4
409

to
15
432Ib

Note
When

sliding
is

improper
the
brake
shoe
does
not

return

smoothly

2

Tighten
the
brake
disc
installation
bolt

flange
bolt

1
5

to
2
0

kg
m
10
8

to
14
5
ft
lb

3

Tighten
the

adjuster
assembly
installation
bolt
1
6
to

2
2

kg
m
11
6

to
15
9
ft

lb

HAND
BRAKE

4

j
1
I
1

I
Spring
balancer

I
2

I
Wheel

cylinder

Fig
BR
44

Measuring
sliding
resistance

1
Hand
brak
e
lever

2
Cable

3

Clip

4
Lock

plate
5
Tu
m
buckle
Hand
brake

adjuster

6

Cable

7
Cable
8

Hanger
strap

9
Return

spring

10
Cable
shank

11
Hand
brake
lever
cover

Fig
BR
45
Hand
brake
construction

BR
1B

Removal

Loosen
the
turn
buckle

adjusting
nut
and

separate

the
front
cable

from
the
rear

cable

1

Rear
cable

2
Turn
buckle

3
Lock

nut
4
Front
cable

5

Propeller
shaft

Fig
BR
46

Removing
turn
buckle

2

Remove

the
lock

plate
located

immediately
in
front

of
the

turn
buckle
remove
the

clip
in

the

passenger

compartment
side
and

disconnect
the

front
cable

3
Remove

the
hand
brake

lever
cover

Remove
the

lever

assembly
with
the

front
cable
connected

toward
the

passenger
compartment
side

1

I
Front
cable

2
Cover

I
3
Hand
brake
lever

Fig
BR
47

Removing
hand
brake
lever

4

Remove
the

hanger
strap
installation
bolt
withdraw

the

lock

plate
from
the
axle

housing
brncket
unit
and

disconnect
the
rear
cable
BRAKE

I
1

I
Hanger
strap
installation
bolt

r
2

I
Lock

plate

Fig
BR
48

Disconnecting
Tear
cable

from

rear
axle

housing

5
Loosen
the

hanger
slrap
unit
nut
and

separate
the

parts
into
nut

hanger

strap
washer
and
bracket

Discon

nect
the
wheel

cylinder
lever

side
brake
cable

r
v

I
j

1
r

1fil

lt

J

l

1
1

I

c
2

1
Dust

cover

2

Hanger

strap
washer

3
Bracket
4

Hanger
strap

5

Hanger
strap
instal

lation
bolt

Fig
BR
49

Hanger
strap
mounted
on
rear
axle

housing

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

defective

conditions
and

replace
if

required

2

Replace
if

sliding

part
is
worn

excessively

3
Make
sure
that
the
hand

brake
lever
can
be

operated

smoothly
and
that
the
ratchet

pawl
and
teeth
are
not

wom

unusually
or

damaged

BR
19

CHASSIS

4

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
5

to
6
mm

0

1969
to
0

2362
in

completely

5

Make
sure
that
the
cable
dust
cover
is
not

damaged

or

warped

Reinstallation

Reinstall
the
hand
brake
in

reverse

sequence
of

removal

noting
the

following
matters

Be

careful
not
to

damage
or
twist

the
dust

cover

2

Tighten
the

hanger
strap
and
the

cable

connecting

nut
to

0
8
to
1
0

kg
m

5
8
to
7
2
ft
1b

3
When

adjusting
rear
brake
shoe

clearance
be
sure
to

loosen

the
inner
cable

sufficiently

4

Grease
the

sliding

parts
with
multi

purpose
grease

MIL
G
2108
or

G
10924

AD
JUSTMENT

Brake
shoe
clearance

Front
drum
brake

Jack

up
the
vehicle
and

remove
the
wheeL

2
With
the

brake
drum
installed

tighten
the

cam

adjusting
stud
clockwise

up
to
such
an
extent
that
the

brake
shoe
comes
into

contact
with
the
brake
drum

by

applying
your
hand

and
tool
from
reverse
side
of

the

brake
disc

Fig
BR
50

Adjusting
front
brake
shoe

clearance
Turn
the
cam

adjusting
5
ud

counterclockwise

up
to

such
an
extent
that
the
brake
shoe
is

separated
slightly

from
the
brake
drum

4
Turn
the
brake
drum

and
if

the
brake

shoe

interferes
the
brake
drum

readjust
the
clearance
In

addition

depress
the

brake

pedal
and
make
sure
that

the

brake

operates
effectively
and

correctly

Front

disc
brake

Ordinarily
adjustment
is
not

required
because
clear

ance
between

pad
and
rotor
is

adjusted
automatically

by
elasticity
of
the

piston
seal

Rear

brake

Jack

up
the
vehicle
and
remove
the
wheeL

2

Appiying
your
hand
and
tool
from
reverse
side
of

the

brake
disc

tighten
the

brake

adjuster
wedge

clockwise

up
to

such
an
extent
that
the
brake
shoe

comes
into

contact
with
the

brake
drum

Fig
BR
51

Adjusting
rear
brake
shoe
clearance

3
Return
the

adjuster
wedge
properly
so
that
the

brake
shoe
is

separated
from
the
brake
drum

slightly

4
Turn
the

brake
drum
and
if

the
brake
shoe

interferes
the

brake
drum

readjust
In
addition
de

press
the
brake

pedal
and
make
sure
that
the
brake

operates
effectively
and

correctly

BR
20

BRAKE

Brake

pedal
height

I

Fl
I

Jl

BRAKE
MASTER

CYllN

ADJU
SHI

1

I
195mm
001971011

THICKNESSIO
8
mm

00315
Inl

116mm
00630In
TOP
LAMP
SWrTCH

r

b

O

ZOlTlI
I

A
12
n

Y
1
O

09

ttr
i
l

Fig
BR
52
Brake

pedal
adjustment

1
Loosen
the

stopper
up
to
such

extent
that
the
brake

pedal
stopper
is

separated
from
the

pedal
arm

2
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

143
5
mm
5
65
in

Adjusting
shim
thickness

for
selection

0
5
mm
0

0197
in

0
8
mm
0
0315
in

1
6
mm
0
0630
in

Note
When

adjusting
be
sure
to

use

adjusting
shims

having
same
thickness
for

upper
and
lower
brake

master

cylinder
installation
bolts

3

Upon
completion
of

adjusting
shim

adjustment

tighten
the

stopper
down
to
such
an

extent
that

height
of

the

pedal
head
is
141
5

t2
mm
5
57

to
0787
in

and

tighten
the
lock

nut

securely

4
Free
travel
of
the
brake

pedal
is
5
to
15
mm

0
197

to
0
591
in
and
the
stroke
is
120
mm

4
72

in
Hand
brake

Turn
the
turn
buckle

properly
and

adjust
hand
brake

lever

operating
stroke

correctly
so
that

operating
stroke
is

78
5
mm
3

091
in
6
notches

at

operating
force

of
11

to
15

kg
24
3
to
33
1
1b

Upon
completion
of

adjustment
be

sure
to

tighten
the

lock
nut

I

I
Rear
cable

2
Turn
buckle

3
Lock
nut
1451
Front
cable

Propeller
shaft

Fig
BR
53

Adjusting
turn

buckle

BR
21

CHASSIS

Tire
rotation

Tires

wear
unevenly
and
become
unbalanced

according

to

running
distance
Uneven
tire
wear

often
results
in
tire

noise
whkh
is
attributed

to
rear
axle

gears
bearing
ell

Meanwhile

the
front

tires
tend
to
wear

unevenly
because

of
front
wheel

alignment

Accordingly
to

equalize
tire
wear
it
is

necessary
to

rotate

tires

every
10
000
km
6
000

miles
of

operation

RIGHT
FRONT
RIGHT
REAR

r

1

Xl
L

J

LEFT
FRONT
LEFT
REAR

Fig
WT
2
Tire
rotation

The
tires
are

provided
with
tread

wear
indicator
at

six

places
around
tire

circumference

indicating
1
6

nun

0
16
in
tread

depth
When
the

tires
wear
and
then

the
marks
a

ppear
replace
them
with

new
ones

TREAD
WEAR

INDICATOR

7
TREAD

m
Y
X
W

X

v

w

WH024

Fig
WI

3
Tread
wear
illdicator

To

change
tire
with
wheel

using
a

jack
in
the

safe

manner
observe
the

following
procedures

I

Apply
parking
brake
and
block

front
wheels
when

rear

wheel
is

being
changed

2
Remove
wheel

cap
and
loosen

wheel
nuts

3

Place

jack
at

jacking
point
instructed
under
General

Information
and
raise
car
until

wheel
clears

ground
4
Remove
wheel
nuts
and
whed
from
drum

5

To
install
wheel
reverse
the
above

steps
Tighten

whed
nuts
in
criss
cross
fashion
to
8
0

to
9
0

kg
m

58
to

65
ft
lb

Note
Never

get
under
the
car

while
it

is

supported
only

by
the

jack
Always
use
safety
stands
to

support

the
side
member
of

body
construction
when

you

must

get
beneath
the
car

INSPECTION

Wheel
balance

The
wheel
and
tire

assembly
should
be

kept
balanced

statically
and

dynamically

Proper
tire
balance
is

necessary
when

driving
the
car
at

high

speeds
Consequently
the
wheel
and
tire

assembly

should

be

properly
rebalanced
whenever

puncture
is

repaired

The
wheel
and
tire

assembly
becomes
out
of
balance

according
to
uneven
tire
wear

Severe
acceleration
and

braking
or

fast

cornering
is
the

cause
of
wear
on
tire

resulting
in
unbalance
of
tire
and
wheel

assembly

The

symptom
of

unbalance

appears
as

tramp
car
shake

and

steering
trouble

To
correct
unbalance
use

proper
wheel
balancer

Maximum
allowable
unbalance

165

gr
cm
2
3
in

ol
at
rim
circumferences

Balance

weight

10
to
70

gr
0
35

to
2
47
Ol

at
10

gr
0
35

Ol
interval

Note
Be
sure
to

place
the
correct
balance

weights
on

the

inner

edge
of
rim

as
shown
in

Figure
WT
4

Wheel

and
tire

In
order

to
ensure

satisfactory
steering
condition
as

well

as
maximum
tire
life

proceed
as
follows

I

Check
wheel
rim

especially
rim

flange
and
bead

seat

for
rust
distortion

cracks
or
other
defects
which

might

cause
air
leaks
Function
of

tubeless
tire

depends
on
a

good
seal
between
tire

bead
and
wheel
rim

Thoroughly

remove
rust
dust

oxidized
rubber
or

sand
from
wheel
rim

with
wire

brush

emery
cloth
or

paper
Use
dial

gauge
to

examine

wheel
rim
for
lateral
and
diametral
run
out

WT
4

STEERING

DESCRIPTION

The

steering
system
consists

of

recirculating
ball

type

gear
box

and

parallelogram
linkage

These

systems
give
good

response
light
handling
and

utmost
durability
Moreover
the

steering
linkage
is

equipped
with
a
torsion

rubber

system
idler
arm
which

absorbs
shock
from
the

wheel

Check
the
lubricant
of

gear
box

every
10
000

km
6
000
miles
and

replenish
recommended
oil
as

required

The

steering
linkage
should
be

greased
up
with
wheel

bearing
grease
every
50
000
km
30
000
miles

All

necessary
service

procedures
for
the

steering
lock

system
are
described
in
the

BODY
ELECTRICAL

SECTION
of
this
manual
and
therefore
no
instruction
is

given
here

STEERING

CONTENTS

REMOVAL

DISASSEMBL
Y

Ball
nut

assembly
ST
2

ST
3

ST

4
INSPECTION
AND
REPAIR

ASSEMBL
Y
AND
ADJUSTMENT

INSTALLATION
ST
4

ST
5

ST
7

1

Steering
gear
housing

2
Shaft

steering
sector

3
Screw

adjusting
roller
shaft
4
Cover

sector
shaft

5
Shim
worm

bearing

6

Comp
jacket
column
7

Assembly
column

steering

8

Assembly
bearing
steering
worm

9

Assembly
nut
ball

Fig
ST
1

Steering
gear
components

ST
1

Iii

I
o

t

I

I

CHASSIS

Fig
ST
2

Steering
wheel

REMOVAL

1
Remove
the

horn

ring
and

remove
the

steering
wheel

nut
and

pull
out
the

steering
wheel

by
the
use

of
a
Steer

ing
wheel

puller
ST27180000
3
Remove
the
turn

signal
and

lighting
switch

com

pletely

4
Remove
the
hand
lever

assembly
from

the
control

rod

assembly
by
unscrewing
the

fIxing
bolts

5
Remove

two

fIxing
bolts
used
to
secure
the

steering

column
to
the
instrument

panel

ST27180000

Fig
ST

3

Removing
steering
wheel
lock
nut

Note
The

horn

ring
can

be

easily
removed

by
two
bolts

2

Remove
the

steering
column
shell

Fig
ST
4

Removing
steering
column

upper
side

ST
2

STEERING

6

Remove
six

bolts
used

to
secure
the

steering
column

hole
cover
to
the

dash
board

Fig
ST
5

Removing
steering
column
hole
cover

7
Remove

the
shift
rod
and

select
rod
from
the

change

lever
and
select
lever
after

removing
the

cotter

pin
from

the
trunnion

8
Disconnect
the

gear
arm
from
the

crOSS
rod

9
Remove

three
bolts
used
to

secure
the

steering
gear

housing
to
the

body

Fig
ST
6

Removing
steering

gear
assembly

10

Pull
the

steering
gear
and
transmission

control

toward
the

engine
compartment

11
Remove
the
transmission
control
from
the

steering

gear
assembly
as
outlined
under
Transmission

control
DISASSEMBLY

1
Remove

the

steering
gear
arm

fIxing
nut
and

pull
out

the

gear
arm

using
a

Steering
Gear

Arm
Puller

ST27140000

2
Remove
the

drain

plug
and
drain
the
oil
from

the

steering
gear
housing

3
Loosen
the

adjusting
screw
nut
and

turn
the
sector

shaft

adjusting
screw
a

few
turns
counterclockwise

Remove

four
sector
shaft

cover

fIxing
bolts
and

pull

the
sector
shaft
cover
with

sector
shaft
from
the

gear

housing

t

I

gJ

I

I

Fig
ST
7

Removing
sector

shaft
cover

4
Remove

four
fIxing
bolts

securing
the

column

jacket

to
the

gear
housing
and

pull
out
the
main
column

jacket

assembly
from
the

gear
housing

Fig
ST
8

Removing
main
column

ST
3

I

CHASSIS

4

Adjust
the

preload
of
the
worm

bearing
by
selecting

the
thickness

of
he

worm

bearing
shim
five
kinds
0
05

to
0
20

mm
0
0020
to
0

0079
in
so
that
the
initial

torque
of
the

steering
wheel
is
2
0

to
5
0

kg
cm
27
8

to

694
in
oz
without
sector
shaft

J

Fig
ST
10

Measuring
initial

tunring
torque

Note

Apply
oil
on
the
worm

bearings
The

turning

torque
wheel
in
motion
should
be
100
to
250

gr

13
5
to
8

8
oz
at
20
em
7
874
in
radius
of
the

steering
wheel
As
to
the
standard
number
of
worm

bearing
shims
refer
to
the

following
table

Worm

bearing
shim

Thickness
mm
in

0
05
0
0020

0
07
0
0028

0
08
0
0031

0
10
0
0039

0
20
0
0079

5

Sector
shaft
lash

adjuster
end
clearance
Assemble

lash

adjuster
with

shim
in

the
slot
of
the

sector
shaft
end

Measure

clearance
0
05
mm
0

0020
in

To
obtain
this
clearance

five
various

thickness
shims

are
available
Adjusting
screw
shim

Thickness
mm

in

1
515
to
1
535
0
0596

to
0
0604

1
545

to
1
565
0

0608
to
0
0616

1
575
to
1
595
0
0620
to
0

0628

1

605
to
1

625
0
0632
to
0

0640

1
63510
1
655

0
0644
to
0
0652

Fig
ST
J
J

Checking
lash

adjuster
end
clearance

6
Assemble
the
sector

shaft
into

the

gear
housing

I
Rotate

worm

column

by
hand
unlil

ball
nut
is
in
the

center
of
its
travel
so
that
the

center
tooth

of

sector
shaft

enters
into

the
center

tooth

space
of

ball

nut

2

With

new

gasket
in

place
push
the

sector
shaft

cover
with
sector

shaft
in

place

After

making
sure
that

there
is
some

lash
between
the

rack
and

sector
teeth

tighten
side
cover

bolts

Tightening
torque
is
I
7
to
2

8

kg
m

I2
3
to
20
2

ft

lb

Note

Apply
oil
on
the
sector

shaft

3

Lock
the

adjust
screw
with

the

adjusting
screw
nut

temporarily

4
Move

the
sector
shaft

several
times
from
the

side
of

the

gear
arm
and
make

sure
it

turns

smoothly

5
Connect
the

gear
arm
to

the
sector
shaft
When

fitting
the

gear
arm

the

aligning
marks
on
the

gear
arm

and
sector

shaft
should
be

matched

correctly

ST

6

STEERING

6

Adjust
the
backlash
at

the
neutral

point
by
screwing

the

adjusting
screw
so
that
the
movement
of
the

gear
arm

top
end

radius
7
mm
5

00
in
is
within
0
1
mm

0
0039

in
and
lock

temporarily
by
the
nut

Fig
ST
12

Checking
backlash

Fig
ST

13

Adjusting
backlash
7
Fill

gear
oil
about
0
24
liter

I
2
US

pt
3
8

Imp
pt
into

assembly
through
f1ller
hole
and

install
a

mIer

plug

INSTALLATION

Installation
can

be

accomplished
in

the
reverse
order

of

removal

Pay
attention

to
the

following
points

I
Make

sure
that
the

steering
wheel

moves

smoothly

2

Check
the

alignment
of
the

steering
wheeL

3

Free
travel
of

steering
wheel

should
be
20

to
25
mm

0
787
to
0

984
in

COLLAPSIBLE
STEERING

CONTENTS

DESCRIPTION

STEERING
COLUMN

JACKET

TUBE

STEERING
POST
CLAMP
ST
8

ST
9

ST
10

ST
11
COLUMN
BEARING

DISASSEMBL
Y

INSPECTION

REASSEMBL
Y
ST
12

ST
12

ST
12

ST
13

ST
7