wheel DATSUN B110 1973 Service Owner's Manual

REAR
AXLE
REAR

SUSPENSION

REAR
AXLE

CONTENTS

DESCRIPTION

REAR
AXLE
SHAFTS

Removal
RA
1

RA
l

RA
l

8
Inspection

Assembly
RA
3

RA

3

1
Axle
shaft

2

Spacer

3
Wheel

bearing

4

Wheel

bearing
collar

5
Oil
seal

6

Bearing
adjust
shim

7

Axle
case

8
Brake
drum

DESCRIPTION
Fig
RA
l
Sectional
view

of
rear

axle

The
rear
axle

is
of
a

semi

floating

type
The
axle

housing
is
a

press
steel

Banjo
type
housing
It
is

light
in

weight
and
is

sufficiently

strong
to
withstand
all
torsional

and

bending
loads

The

rear
wheel

bearings
are
of

presea1ed
types
There

fore
no

frequent
lubricating
service
is

required
However

when
the
rear

axle
is

disassembled
the
wheel

bearings

should
be

packed
with
an

approved
grease

prior
io
the
reinstallation

being
careful
not
to

damage
the

sealing

rubber

REAR
AXLE
SHAFTS

Removal

Apply
wheel
chocks

on
front
wheels

jack
up
the

rear

of
the
vehicle
and

support
it
on
stands

RA
l

CHASSIS

2

Remove
the

wheel
cover

and
nuts
Remove
the
road

wheel

and
b
rake
drum
If
brake

linings
should
hold

the

drum
slacken
off

the
brake
shoe

adjuster
a

few
notches

3

Disconnect
the
brake

pipe

CD
from
the
wheel

cylinder

Plug
up
the

open
end
of

the
brake

pipe
with
a

plastic
cover
or
wooden

peg
to

prevent

foreign
matters

from

entering
the

hydraulic
line

Fig
RA
2

Disconnecting
brake

Une

4

Straighten
the

cotler

pin

@
and
remove
it
Remove

clevis

pin
and

disconnect
the

hand
brake
cable

from
the

hand

brake
lever
Remove
the

hand
brake
return

spring

CID

5
Remove

the
four
bolts

securing
the

brake
back

plate

to
the
axle

housing
Draw

out
the
axle

shaft

assembly

together
with
the
brake
back

plate

using
sliding
hammer

ST36230000
and
rear

axle
stand
ST07640000

ST07640000

I

Fig
RA
3

Removing
axle

shaft
6

If
either

the
axle

shaft
or
rear

wheel

bearing
is
to
be

replaced
remove
the

bearing
locking
collar

by
nicking
it

deeply
with
a
cold

chisel
in

several

places
It

will
then

slide

easily
Be

careful
not
to

damage
the
axle
shaft
with

the

chiscl
Set

the

bearing
remover
ST37130000
and

remove

the
wheel

bearing
The
removed

bearing
collar

should
be

discarded
and

should
not
be

reused

Fig
RA
4

Removing

bearing
collar

Fig
RA
5

Removing
wheel

bearing

7

It
is

recommendable
that

the
oil

seal
be

replaced

whenever

the
rear
axle
shaft
is

replaced
To
remove
the
oil

seal

use
a
suitable
bar

such
as
a
screwdriver

RA
2

REAR
AXLE
REAR

SUSPENSION

y

Jo

r

J

Fig
RA
6

Removing
oil
seal

Inspection

I

Inspect
the

machined
surface
of
the
axle

shaft
and

the
axle

housing
for

rough
spots
or
other

irregularities

which
affect
the

sealing
action
of
the
oil

seal

2

Check
the
axle

shaft
for

straightness
cracks

damage

wear
and
distortion
The
bend
amount
should
be
less
than

0
3
mm
0
118
in

Note
Do
not

attempt
to

straighten
a
bend
shaft

by

heating

Assembly

Assemble
the

rear
axle
in

reverse

sequence
of
removal

noting
the

following
points

I
Place
the

bearing
spacer
wheel

bearing
and

bearing

collar
on
the
axle
shaft
and

press
them
on
the
shaft
with

a
force
of
3
to
5

tons

using
a

press
stand
ST38270000

Note
A

new
rear
wheel

bearing
should
be

packed
with

specified
MP
2

grease
Fig
RA
7
Install
wheel

bearing

2

Install
the
oil
seai
in

place
on
the
axle

housing
flange

Note
When
the
axle
shaft
is

replaced
the

new
oil

seal

must
be
used
Be

sure
to

apply
MP
2

grease

between

lips
of
the
oil
seal

3
Install
the
rear
axle

shaft
into
the
axle

housing

Check
the

clearance
between
the
wheel

bearing
and

housing
and

face
If

this
clearance
is

exceeding
the
limit
of

o
to
0
1
mm

0
to

0
0039
in

adjust
it

by

changing
the

adjusting
shim

having
proper
thickness

BEARING
ADJUSTING
SHIM

1

Fig
RA
8
Wheel

bearing
to

housing
end

face
clearance

RA
3

REAR
AXLE
REAR

SUSPENSION

DESCRIPTION

Rear

suspension
consists
of
semi
elliptic

leaf

springs

telescopic
hydraulic
shock
absorbers
and
rubber

bumpers

The
rear

spring
center

pin
is

off
set
110
mm
4
33
in

toward
the
front
from

the
center
of
the

spring
This
is

done
to
reduce

spring
wind

up
and
to
decrease
the

arc

while
the
rear
wheel

swings
through
Thereby
minimizing

the

possibility
of
the
rear

suspension
effecting
vehicle

stability

Iso

clamp
devices
are
used
for

attaching
the

axle

housing
to
the

spring

The
leaf

springs
shock
absorbers
and
rear
axle

housing

are
mounted
on
rubber

bushings
at
each
end
to
minimize

noise
and
vibration
of
the
transmission
to
the
car

body

and

passenger

compartment

REAR
SPRING

Removal

1
Jack

up
the

center
of
the
rear
axle
until
the
wheels

are
clear
from
the

ground
Support
the
rear

end
of
the

frame
on
stands

Fig
RA
l1
Rear

spring
U

bo
ts

2
Disconnect

the
shock

absorber
bottom
end
from
the

spring
lower

seat

3

Support
the
rear
axle

housing
with
a

jack

4
Loosen
the
lock

nuts
of
the

rear

spring
U

bolt
and

remove
the
bolts

spring
seat

location

plates
and
seat

pads
5
Loosen
the
three

fixing
nuts

securing
the

front

bracket
remove
the

front
bracket
from
the

leaf

spring

front

eye
and
car

body
and
lower
the
rear

spring

Fig
RA
12
Rear

spring
front
bracket

6
Remove

upper
and
lower
nuts
of
the

rear
shackle

Fig
RA
13
Shackle

Inspection
and

repair

1
Examine
the

spring
leaves
for
fractures
or

cracks

2
Test

spring
and

compare
with
the

specifications
given

in

Service
Data

and

Specifications
If
the

spring
is

found

defective

replace
with
a

new

assembly

3
Check
the

front

pin
shackle
U
bolts
and

spring
seat

RA
5

REAR
AXLE
REAR
SUSPENSION

SERVICE
DATA
AN

D
SPECIFICATIONS

Shock
absorber

Applied
model
Sedan

Coupe
Van

Stroke

x
max

length
mm
in

167x506
6
57xI9
9

180
x
440
7
09
x
17
3

180
x
468
7
09
x
18
4

Damping
force
at
0

3mjs

Rebound

Compression
kg

Ib

kg
lb
58

128

38
83
8
68

I
50

45
99
2
90
198

45

99
2

Rear

spring

Length
x
widlh

x
thickness

NO

ofleaves
mm

in
6
I

1

llOx50x72
O
6
1

I
ll

x50x7
2
6
3

1
110
x
50

x

13
1

0
24
1

43
7x
1

97x

0
28
2
0
24
2

43
7xI
97x
0

28
1

0
52

1

1

110x50x
6
2
43
7X
1

97
x
0
24

1

7
1
0
28
2

11
1
0
43
1
0
24
1

43
7x
1
97x

0
28
2

Heavy
duty
spring

Camber

Free
mm
in

109
t3
4
29

1
0
1181

11
0
433
109
1
3
4

29
1
0

1181

11

0
433
131
1
5
5

15
tO
1969

11
0
433
Loaded
wi
th

specified
load

mm

in

Specified
load

kg
Ib
In

423
In
423
295
650

Spring
eye
diameter

Front
mm
in
35
1
378
35
1
378

35
1
378

Rear

mm
in
23
0
906
23

0
906
23
0

906

Rear

axle

End

play
mm
in
Less
than
0
1

0
0039

Rear
axle

end
shim
mm
in

0
Q75
0
003

Wheel

bearing
coUar

pressing

force
ton

Ib
3
to
5
6

600
to
11

000

Tightening
torque

Axle
shaft
to

housing

flange
bolt
nuts
kg
m

ft
lb

1

5
to
2

0
10
9
to
14
5

L7
to
2
5

12
3
to
18
1

Differential
carrier

to

housing
bolts

Spring
V

bolts
3

2
to
4
0
23
1
to
28

9

RA

7

CHASSIS

Wheel
nuts
8
0

to
9

0
7

8
to
65
1

Spring
front
bracket
to

body
bolt
nuts

Sedan
and

Coupe

Van
6

to
0
1
6
to
14
5

6
to
I

11
6
to
15

2

Spring
shackle

pin
nuts
1
6
to
0
11
6
to
14

5

Spring
front

pin
nut

Sedan
and

Coupe

Van
6
to
2
0
1
6
to
14

5

3
2
to

4
0
23
1
to
28

9

Shock
absorber

upper
nuts

Sedan
and
Van

Coupe
3
6
to
4
5

26
0
to

32
5

0
to
1

7
2
to
8
6

Shock
absorber
lower
nuts

Sedan
and
Van

Coupe
3
6
to
4
5

26
0
to

32
5

0
to
I
2
7
2
to
8
6

0
6
to
0

8
4
3
to
5
8

Torque
arrester
to

body
bolts

SERVICE
JOURNAL
OR
BULLETIN
REFERENCE

DATE
JOURNAL
or

BULLETIN
No
PAGE
No

SUBJECT

RA
8

CHASSIS

DESCRIPTION

The
Datsun
1200

series
new
models

adopt
a

hydraulic

brake

Dis
brake
or
two

leading
shoe

type
drum
brake
is

used
for
the
front

wheels
and

leading
trailing
shoe

type

drum
brake
is
used
for
the

rear
wheels

With

adoption
of
the

disc
brake

safety
at

high
speed

range
driving
is
further

improved

For
the

master

cylinder
either

single
type
or
tandem

type
is
used

There
are
two

types
of
tandem

type
master

cylinder
one
is
for
disc

brake
and
the
other
for
drum

brake
Under
the

standard

specifications
h0wever
the

tandem

type
master

cylinder
is

used
for
disc
brake
and

single
type
is
used
for
drum

brake

The
tandem

master

cylinder
provides
a
dual

brake

system
improving
safety

The
hand
brake
is
of

a
mechanical

type
which
brakes

the
rear

wheels

through
the
control
lever

and
steel
wire

The

control
lever
is
located
between
the
driver
and

assistant
seats
and
can
be

operated
easily

BRAKE
PEDAL

The

steering
colunm
bracket

supports
the
brake

pedaL

The
brake

pedal
is
instaUed
on
the

steering
column

bracket
with
a
fulcrum

pin
The
brake

pedal
arm
and

brake
master
cylinder

push
rod
are

joined
with
a

clevis

pin
The

stop
lamp
switch

opposes
the
brake

pedal
arm

bracket
and

operates
as

the

pedal
arm
moves

t

2

3
Stop
lamp
switch

Brake

pedal
stopper

Brake

pedal
arm
4
Clevis

pin

5
Push
rod

6
Fulcrum

pin

Fig
BR
2
Brake

pedal
installation
Removal

Unhook
the
rerum

spring

Remove
the

spring
pin
from
the
clevis

pin
which
is

used
to
connect
the
master

cylinder
push
rod
to

the
brake

pedal
arm
remove
the

clevis

pin
and

separate
the

push

rod
from
the

pedal
arm

3
Remove
the

fulcrum

pin
which
is
used

to
connect
the

pedal
arm
to
the

bracket
and

separate
the

pedal
arm
from

the
bracket

@

mm
l6
qf

@

@

t

Spring
pin
5
Nut
9
Return

spring

2

Clevis

pin
6

Spring
washer
10
Brake

pedal
arm

3
Washer
7
Nut
It
Brake

master

4

Spring
lasher
8

Fulcrum
shaft

cylinder

Fig
BR
3
Brake

pedal
components

tandem

type
master

cylinder

Inspection

1

Check
sliding
parts
for
wear
and
the

return

spring
for

weakness

2
Check
the
brake

pedal
for
bending

warping
and

crack

3

Check
other

parts
for
serviceabilities

Reinstallation

Reinstall
the
brake

pedal
in
reverse

sequence
of

removal

noting
the
following
matters

1
Grease

sliding

parts
and
retum

spring
hook
with

multipurpose
grease
MIL

G
2108
or
G
10924

2

Tighten
the
fulcrum

pin
installation
nut
to
2

1
to

2
9

kg
m

15
2
to
21
0
ft
lb

BR
2

CHASSIS

FRONT
DRUM
BRAKE

14
I

l

Fig
BR
14
Front
drum
brake

components

Removal
and

disassembly

Jack

up
the
vehicle

support
with
a
stand

and

remove
the
wheel
cover
and
tire

2
Remove

the
brake
drum
and
remove
the
hub

cap

and
hub

assembly
from
the

spindle

3
Disconnect
the

brake
tube

at
the
bracket
unit

of
the

strut

assembly
For
the

details
refer
to
Section
FA

R

W
i

1
t

V
t

1
1

d
j

2
rl

s
J
J
i

Z
j

Fig
BR
15
Front

drum
brake
4
Unhook

the
return

spring
and
remove
the

brake
shoe

assembly

5

Disconnect
the

bridge
tube
from

lhe
fore
and
after

wheel

cylinders

I
I
After
wheel

cylinder

Bridge
tube

I
3

I
Fore
wheel

cylinder

Fig
BR
16

Fore
and

after
wheel

cylinders

and

bridge
tube

6
Remove
the
installation
bolts
and
remove
the
fore

and
after
wheel

cylinders

BR
B

7

Remove
the

brake
disc

installation
bolt
and
remove

the
brake
disc
from
the

spindle

8
Disassemble

the
wheel

cylinders

Inspection

l
Drums

If

they
show

score
excessive
out
of

round

and
so
forth

reconditioning
by
machining
is

required

Brake
drum
inner

diameter

203
2

mm
8
00

in

Drum

inside
out
of
roundness

Below
0

02
mm
0
0008
in

Max

allowable
drum

inner
diameter

204
5

mm
8
051
in

2

Linings
If
brake
shoe

linings
are

incomp1etedly

seated

soiled
or

greasy
or
deteriorated
due

to
excessive

heating
repair
or

replace
them

If
the

thickness
of
the

lining
is
less

than
1
5

mm
0
0591
in

replace
it

Note
a
If
oil
or

grease
is
found
on

linings
clean

thoroughly
with
carbon
tetrachloride
or

gasoline

b
After

installing
and

bonding
lining
grind
the

lining
face

to
a
diameter

equal
to
the
brake
drum

3

Check
the

adjusting
cams

for
their
smooth

operation

4
Return

springs
If

they
are

considerably
weak

replace
them

Return

spring
dimension

Wire
diameter

x
free

length
turns

3
2

x
118

mm
20
5

0
1260
x
4

65
in

20
5

Load
x

length

55

kg
I21
lb
x
127
1

mm
5

00
in

13
4
0
528

ilL
rnv

0
t
6

hl
03

118

4
65

FREE

LENGTH

UNIT
mm

in

Fig
BR
J
7
Return

spring
BRAKE

5

Check
the
brake
disc

for
distortion

6
Check

the
bore
of
the

wheel

cylinder
for
wear

sign

of
rust
and

damage

If
clearance
between

the

cylinder
and
the

piston

exceeds
0
15

mm
0
0059

in

replace
them

Fig
BR
J
8

Sectional
view

of
front
wheel

cylinder

7
When
the

wheel

cylinder
is

overhauled
it
is

recom

mended
that

cups
be

replaced
even
if

apparently
they
are

in

satisfactory
conditions

Cups
must
be

replaced
if

deformed
due
to

damage
crack
corrosion

smelling

andf
or

aging

Reassembly
and
reinstallation

The
rear

brake
is

reassembled
and
reinstalled
in
reverse

sequence
of

disassembly
and
removal
However
note
the

following
matters

When

assembling
the
wheel

cylinder
be

sure
to

apply

rubber

grease
to
the

piston

cup
and

other
rubber

parts

slightly

2
When

installing
the
wheel

cylinder
to
the
brake

disc

apply
brake

grease
to
the

cylinder
disc
and

adjusting

plate
sliding
surfaces
and
to
the
wheel

cylinder
lever

fulcrum

portion

sufficiently
so
that
the
wheel

cylinder

slides

smoothly

BR
9

BRAKE

CYLINDER
SIDE

PISTON
SIDE

COMPR
ESSION

DECOMPRESSION

Movement

exceeding
the

elastic

displacement
is

released
with

slipping
on

the
seal
surface
Returns
in
elastic

displacement
of

the

seal

Fig
BR
21
Piston

seal
automatic

adjusting
operation

Brake

pad

Replacement

1
Jack

up
front
unit
of

the
vehicle
and
remove
lhe

front

wheeL

2
Remove

clip
from
the

retaining
pin
and

supporting

the
brake

pad
remove
the

retaining
pin
and
coil

spring

I

I
Brake

pad

2

Retaining
pin

I
31
Clip

Fig
BR
22

Removing
retaining
pin

3
Unhook

the

hanger
spring
and
withdraw
the
brake

pad
and
shim
with
a

pair
of

pliers

BR
ll
Fig
HR
2

Withdrawing
brake

pad
and
shim

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
for
wear

after
the

first
10
000
km
6
000

miles

driving
and

every
5
000

km
3
000

miles
thereafter

1

Clean
the
brake

pad
with
carbon
tetrachloride
or

gasoline

2
When
oil
and
or

grease
is

heavily
sticked
on
the

pad

or
when
deteriorated
or
deformed
due
to

overheating

replace
the

pad
with

a
new
one

3
When
thickness
of
the

friction
material

pad
is
less

than
1
6
mm
0
0630
in

replace

Replace
when
total

pad
thickness
is

less
than
6
1
mm

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

4
Check
the
rotor
Refer
to
Rotor

inspection

Reinstallation

1
Clean
the

calipers
and

piston
pad
installing
parts

Note
Do
not
use
mineral
oil
Be
careful
not
to

apply
oil

on
the
rotor

2

Depress
the

piston
into
the

cylinder
so
that
new

pad

can
be
installed