1973 DATSUN B110 tow

CHASSIS

DESCRIPTION

The

front

suspension
is
of
a
strut

lype
The
shock

absurber

and

spindle
are
combined
to
a

single
unit
which

is

supported
by
the
coil

spring
at
the

upper
end
aod

by

the

transverse
link
at
the
lower
end

The

spindle
is
ins
tailed
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

bushing
The

shock
absorber
mechanism

is
built
in
the

strut
outer

casing
A

coil

spring
is

applied

between
the

upper
spring
seat
filled
to
the

upper
end

of

the

piston
rod
and

spring
seat
welded
to
the
outer

casing

These

components
assembled

to
a

single
unit
are
fitted
tu
the
chassis

frame
at
their

upper

part
through
the
thrust

bearing
Moreover
the

transverse
link

supports
the
overall

forward
and
backward
strut

movements

by
means
of
the

tension
rod

filled
to

the
chassis
frame

through
a

rubber

bushing
The

rubber

bushing
adopts
a

non
linear

shape

with
which
the
forward
and

rearward

rigidities
are

changed
The

torsion
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
absorbs

forward
and
backward

shocks
the
strut

absorbs
vertical

shock
and
the

transverse
link

absorbs
shock

applied
toward

sideway

t

J

f

II

L

II

I

7

f

1

I

Fig
F
1
2
Cross
sectional
view

of
front
axle

Drum

type
brake

FA
2

FRONT
AXLE

FRONT
SUSPENSION

t
t

Fig
FA
26

Returning
wheel

bearing
lock
nut

4
Turn
the
wheel
hub
a
few
turns
both
clockwise
and

counterclockwise

again
to
allow
the

bearing
breaking
in

measure

bearing
rotation

starting
torque

apply
a
cotter

pin
to
secure
the
nut
if
the
measured

starting

torque
is

within
the
rated
value
and
install
the
hub

cap

hub

cap

Wheel

bearing
rotation

starting

torque

9
0

kg
cm
7
8

in
1b

4
0

kg
cm
3
4
7

in
1b

At
the

hub
bolt

1
57

kg
3
461b

New

bearing

0
7

kg
1

54lb
Used

bearing

No
slackness

should
exist

toward
the
axis
direction
New

bearing

Used

bearing

J

o
i
@
j
Be

sure
to
remove
the

brake

pad
Disc

type
brake

Correctly
measure

starting
force
toward

tangential

direction

against
the
hub

bolt

Fig
FA

27

Measuring
wheel

bearing
ro
ation

starting
torque

STRUT
ASSEMBLY

The

strut

assembly

consisting
of
a

strut
outer

casing

with

spindle
forms
a

cylinder
between
the

piston
rod

guide
and

bottom
valve

The

inner

components
are

precisely
assembled
and
no

dirt
and

foreign
matter

intrusions
are

permitted
The

components
such

as

piston
rod

piston
rod

guide
cylinder

and

bottom
valve
are

handled

together
as

an

assembly

When

replacing
them
be

sure
to

replace
the
inner

components
as

an

assembly

1

2

3

4

5

6

7

8

9

10
Front

spring

Bound

bumper

Piston
rod

self

locking
nut

Washer

Strut

mounting
insulator

Strut

mounting
bearing

Oil
seal

Upper
spring
seat

Dust
cover

Strut

assembly

Fig
FA
28
Strut

assembly
components

FA
l1

CHASSIS

Fig
FA
35

Removing
O

ring

8

Separate
the

piston
rod

and

cyiinder

assembly

upward
from
the

strut
tube

slowly
and

carefully

M

Fig
FA
36

Removing
piston
rod
and

cylinder
assembly

Note
Do
not

remove
the

piston
rod
and

guide
from
the

cylinder
They
are

precisely
assembled
and
thus

should
be
handled
as
an

assembly

9
Drain

damping
oil

from
the

cylinder
and
strut
outer

casing
into
a

clean
container

Note
This

procedure
should
be

strictly
observed
because

shock

absorber

perlormance
is

directly
affected

by

the

amount
of

damping
oil
When

refilling
measure

amount
of

damping
oil

correctly

FA

14
Inspection

Be

sure
to

replace
the

gland
packing
O

ring
and

damping
oil

with
new

ones
whenever
the
strut

assetnb1y
is

disassembled

2

Wash
all
disassembled

parts
except
for
nonmetal

parts
with

gasoline
or

thinner
and

remove
dirt
and

other

foreign
matters
with

compressed
air

3

Clean
the
nonmetal

parts
with

compressed
air

Strut

outer

casing

Replace
if

deformed

cracked
or

damaged

Spindle

Check
the

spindle
especially
carefully
for

hair
crack
on

the

base
and

damaged
threaded

portion
Replace
the

strut

assembly
if

faulty
condition
exists

Strut

mounting
insulator

Replace
if
rubber

and
metal

joint
is
melted

or
cracked

Replace
the

rubber

parts
if

they
are
deteriorated

Front

spring

Replace
if

weakened
or

cracked

Specifications
for

spring

Free

length
338
t
10
mm

13
3

t
0
394
in

203
t
5
mm

7

99
t
0
1969
in

200

kg
441Ib
Installed

height
load

Strut

mounting

bearing

Replace
if
unusual
sound

occurs

during
rotation
or

slackness
toward

the
axis
direction
is
excessive

When

installing
the

strut

mounting
bearing
be
sure
to

fill
it

with
mul1i

purpose
grease
MIL
G
2108
or

10924

FRONT
AXLE
FRONT
SUSPENSION

I

ST36721
000

ST36722000

Fig
FA
51

Removing
transverse
link

bushing

Inspection

Transverse
link

bushing

Rubber
and
inner
tube

joints
adhered

are

sticky

melted
or

cracked

replace
the
transverse
link
as

an

assembly

Ball

joint

I
The
ball

joint
is

of
a
non
disassembled

type
and

therefore
the
ball

joint
cannot
be
disassembled

Measure
end

play
toward
the
axial
direction
and

shaking
torque
and

replace
when
deviated
from
the

standards

Standard
end

play
axial
direction

0
3
to

1
0

mm
0

0118
to
0
0394
in

Shaking

torque
35
to

60

kg
cm

30
4

to
52
1
in

ib

At
the

cotter

pin
opening
position

6
6
to
11
3

kg
14
6
to
24

9Ib

I

Fig
FA
52

Measuring
ball

joint

shaking
torque
2

Replace
the
ball

joint
with

a
new
one
when
the

dust
cover
is
cracked

3

Lubricate
the
ball

joint
with
multi

purpose
grease

MIL
G2108
or
10924

every
50
000
km
30
000

miles
or
two

years

Install
a

grease
nipple
on
the

plug
hole
and

grease

completely
so
that

old

grease
is

replaced
with
new

grease
Be
sure

to
reinstall
the

plug
when

completely

greased

Note
When
a

high
pressure
grease

gun
is
used

operate

the

grease
gun
carefully
so
that

grease
is

injected

slowly
and
new

grease
does

not
come
out
from
the

clamp
portion

Reinstallation

Reinstall
the
transve
l
e
link
and
lower

ball

joint
in

reverse

sequence
of
removal

noting
the

following
ins
true

tions

I
When
transverse
link
collar
interior

along
which
the

transverse
link

bushing
is
inserted

is
rusted
remove
it

with

emery
paper

2
In

order
to

improve
slide

make

bushing
surface

and

transverse
link

collar
interior
wet
with

soap
water
when

inserting
the

transverse
link

bushing

3

Fit
the

transverse
link

bushing
to
the

transverse
link

collar

by
the
use

of
a

transverse
link

bushing
replacer
set

special
1001

ST36720000
In

order
to

unify
distances

from
the
transverse
link

collar
end

surface

to
the

bushing

inner

tube
for
both
sides

following
instructions

apply

1
When

fitting
the

transve
l
e
link

bushing
use

special

tools

ST36721000
ST36722000

and
ST36723000
and

be
sure
to
face
8

0
mm

0
3150
in

side
of
hollow

part
of

the

special
tool
ST36723000

upward
as
shown
in

Figure

FA
53

FA
19

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

Tightening
torque

3

way
connector
1
5

to
1
8

kg
m

10
8
to
13
0
ft
lh

1
5
to
1
8

kg
m

10

8
to
13

0
ft

lh

1
5
to
1
8

kg
m

10

8
to
13

0
ft

lb

0

7
to
0
9

kg
m

5
1
to
6
5

ft
1b
Master

cylinder

Brake
hose

Air
bleeder

5

Fill
the

master

cylinder
brake

fluid
reservoir
with

brake
fluid
and

perform
air

bleeding
complele1y

Note
a
Do
not
use

brake
fluid
other
than

specified

b
The

specified
brake
fluid
is
used
for

both

single

and
tandem

type
master

cylinders

6

Upon

completion
of
air

bleeding
make

sure
that
the

brake

operates
correctly
and
check
the
brake
tube
and

hose
connectors
for
fluid

leaking
Fully
depress
the

brake

pedal
continue
to

depress
the
brake

pedal
for
several

seconds
and
make
sure
that
no
brake

fluid
leaks
from

any

part
of
the
brake
line

Replace
defective

part
if

required

Brake
line

pressure
differential

warning

light
switch

A

warning
light
is

located
on
the
instrument

panel
to

warn
the
driver
when

a

pressure
difference
of
13

to
17

kg
cm2
185
to

2421bJsq
in
exists
between
the

front
and

rear
b
rake

systems

A

hydraulically
actuated

warning
light
switch

is
located

in

the

engine
compartment
Both
front
and
rear
brake

systems
are
connected
to
this
switch
assembly

When

a

pressure
difference
of
13

to
17

kgJcm2
185
to

242

lbJsq
in
occurs
between
the
front
and
rear

brake

systems
the
valves

will
shuttle
toward
the
side
with
the

low

pressure
The
valve
contacts
with
the
switch
terminal
BRAKE

the

ground
circuit

for
the

warning
light
is

completed
and

thus
the

warning
light
lights

In
this

case
correct
the

hydraulic
brake

problem
and

bleed
the
brakes

Check
the

warning
light
switch

assembly
for
a

proper

operation
Check
the
switch

assembly
for
fluid

leakage

Note
Do

not

attempt
to

repair
switch
for

any
reason

replace
switch

assembly
completely

1
To
front
brake

L
H

2

From
master

cylinder
F

3
From
master

cylinder
R
4
To
rear
brake
L
B
R
M

5
To
front
brake
R
H

Fig
BR
12

Warning
light
switch

r

I

@

I
I
3

I
Valve

assembly

4

Piston
load

spring
Wire
terminal

Brake
tube

Fig
BR
13
Sectional

view

of

warning
light
switch

BR
7

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

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