differential DATSUN B110 1973 Service User Guide

CHASSIS

7
Turn
drive

pinion
in
both
directions
several
times
to

set

bearing
rollers
And

adjust
bearing
preload
to

specifi

cations

Drive

pinion
bearing
preload
with

oil
seal

7

to
9

kg
cm
6
1

to
7

8
in
1b

At

companion

flange
bolt
hole

2
25
to
2
95

kg
4

96
to
6
50

1b

Pinion
nut

tightening
torque

12

to
17

kg
m

86
8
to
122
9
ft

1b

Fig
PD
24

Measuring
pinion
preload

Setting
and

adjusting
side

bearing
shims

When

reassembling
the
side

bearing
without
replacing

be

sure
to

install
a
shim

having
same
thickness
as
that

before

disassembly

The

following
instructions

apply
when
the

hearing
is

replaced

I
Place
an

approximately
2
5

kg
5

5
Ib

weight
on
the

side

bearing
and

measure

bearing
thickness

ST3250S000

Standard
side

bearing
width

17
5

mm
0
689
in
Note
With
the

weight
placed
on
the
side

bearing
turn

the

bearing
two
to
three
turns
and
measure

thickn

1

ST3250S000

Fig
PD
25

Measuring
for
bearing

2
Side

bearing
adjusting
shim
thickness

calculating

formula

Left
side
drive

gear
side

Tl
A
C
D
H
xO

01
0
2
E
mm

Right
side

pinion
mate
side

T

2
B
D
H
x
0
01
0
2
F

mm

Figures
for
A
B

C
D
and
H

are
dimensional

variations
in
a
unit

of
1
100

mm

against
each
standard

measurement

Where
A
The

figure
marked
on
the

left
side

bearing
housing
of

gear
carrier

The

figure
marked
on
the

right
side

bearing
housing
of

gear
carrier

The

figure
marked
on
the
differential

case
B

C
D

E
F
These
are
differences
in
width
of
left

or

right
side

bearing
against
the

standard

width
17
5
mm

0
6890
in

Figure
is

given
in
a

unit
of
1

100
mm

PD
12

PROPELLER
SHAFT
DIFFERENTIAL
CARRIER

C
DMark

Unit
mm

in

Fig
PD
26
Thickness

of
shim
on

left
side

Thickness

of
shim
on

right
side

H
The

figure
marked
on

the

ring
gear

Example
of

calculation

A
I
B
2

E
0
02
mni

Left
side
C
2
D
3

F

O
Olmm
H
1

TJ
1
2
3
1

xO
01
0
2
0
02
0
23

mm

Right
side

T

2
2
3
1
x

0
01
0
2
0
01
0
19
mm

Apply
a
0
23

mm
shim
and
0
19

mm
shim

respectively

to
the

left
and

right
and
fit
the
side

bearing
using

Differential
Side

Bearing
Drift
ST33220000

Side

bearing
adjusting
shims

Thickness

mm
in

0
05
0
0020

0
07
0
0028

0
10
0
0039

0
20
0
0079

0
50
0
0197

PD
13
3
Install
the
differential

case
assembly
together
with

the
side

bearing
outer
race
on
the
final
drive

housing

Note
Be
careful
not
to
confuse
the

right
and

left
sides
of

the
side

bearing
housing

4

Install
the

bearing
cap
and

tighten
the
installation

bolt
to
the
rated

tightening
torque

Bearing
cap

tightening
torque

5
to
6

kg
m
36
2
to
43
4
ft
1b

Fig
PD
27

Measuring
tightening

torque

Note
Be

sure
to

align
match
mark

put
before
disas

sembly
correctly

5
Measure
L

dimension
between
left
and

right

bearing
cap
edges
by
a
micrometer

L
dimension

153
40
to

153
55
mm
6
0394
to
6
0453
in

6

Upon
completion
of

reassembly
measure
drive

pinion
ring
gear
backlash
When
backlash
is
less
than

the

rated
value
move
the
side

bearing

adjusting
shim
from
the

left

side

ring
gear
side
to
the

right
side

When
backlash
is

more
than
the
rated
value

move
the

side

bearing
from
the

right
to
left

contrarily

Backlash

0
10

to
0
15

mm
0
0039
to
0

0059
in

CHASSIS

Fig
PD
28

Measuring
backlash

7

Existence
of

foreign
matter

between
the

drive

gear

and
differential

case
is

considered
when
backlash

fluctuates

considerably
Measure
drive

gear
back

deflection

8

Check
the

run
out
of

ring
gear
side
is
within
0

05
mm

0

0020
in
total

indicator

reading

ot

Fig
PD
29

Measuring
run
out

of
ring
gear

9
When
run
out
of

ring

gear
is

normal
and

fluctuation

of
backlash
is
considerable

replace
the

gear
set
Before

replacing
the

gear
set
be

sure
to
measure

companion

flange
deflection

Fluctuation
of
backlash

may
be

con

siderable
due

to
deflection

of

pinion
bearing
Limit
of

deflection

A

portioo

B

portion
Less
than
0
05
mm
0

0020
in

Less
than
0

05
mm
0
0020

in

Ct
r

r

f

1

I

f

i
r
I

oj
j

12
r

Fig
PD
30

Measuring
place

10
At
the
same
time
check

bearing
preload
Bearing

preload
should
read
8
to
15

kg
cm

6
95

to
13
03
in

lb
of

rotating
torque
2
3

to
4
3

kg
5
1

to
9
5
1b
at

companion
flange
bolt

hole

If

preload
does
not

accord
with
this

specification

adjust
it

with
side

bearing
shims

II
Check
and

adjust
the
tooth
contact

pattern
of

ring

gear
and
drive

pinion

I

Thoroughly
clean

ring
and
drive

pinion
gear
teeth

2
Paint

ring
gear
teeth

lightly
and

evenly
with
a

mixture
of

powdered
red
lead
and
oil
of
a
suitable

consistency
to

produce
a
contact

pattern

3
Rorate

pinion
through
several

revolutions
in
the

forward

and
reverse
direction
until
a
definite

contact

pattern
is

developed
on

ring
gear

4

When
contact

pattern
is
incorrect

readjust
thickness

of

adjust
shim

Be

sure
to

wipe
out
red
lead

completely
upon

completion
of

adjustment

5

Incorrect
contact

pattern
of
teeth

can
be

adjusted
in

the

following
manner

a

Heel
contact

To

correct
increase
thickness

of
drive

pinion
adjusting

washer
in
order

to

bring
drive

pinion
close
to

ring
gear

PD
14

PROPELLER
SHAFT
DIFFERENTIAL
CARRIER

Fig
PD

J
Heel
contact
Fig
PD
34
Face
contact

e
Correct
tooth
contact

b
Toe
contact

To
correct
reduce
thickness
of
drive

pinion
adjusting

washer
in
order
to
make
drive

pinion
go
away
from

ring

gear

L

a
Fig
PD

35
Correct
contact

Fig
PD

J2
Toe
contact

c
Flank
contact

Adjust
in

manner
similar

to
b
Note

Change
in
thickness
of

adjusting
washer
is

ac

companied
by
change
in
backlash
Check
it
when

installing
gear

t

Fig
PD

3J
Flank
contact

INSTALLATION

d
Face
contact

Adjust
in
manner
similar
to
a
Installation
can
be

accomplished
in

reverse
order
of

removal

by

referring
to
REAR
AXLE
installation

PO
15

PROPELLER
SHAFT
DIFFERENTIAL
CARRIER

Incorrect

adjustment
of

bearings
or

gears

Severe
service
due
to
an
excessive

loading

improper
use
of

clutch

Loosened
bolts
and
nuts
such
as

ring
gear

clamp
bolts

Oil

leakage
Worn
out

damaged
or

improperly
driven

front
oil
seal
or
bruised
dented
or

abnormally
worn
slide
face
of

companion

flange

Loosened
bolts

holding

gear
carrier

Defective

gasket

Loosen
filler
or
drain

plug

Clogged
or

damaged
breather

SERVICE
DATA
AND
SPECIFICATIONS

Type
of
differential

gear
carrier

assembly

Final

gear
type

Final

gear
ratio

number
of
teeth

Sedan

Coupe
Van

Drive

pinion

Preload
with
oil
seal

Preload
without
oil
seal

Thickness
of
drive

pinion
adjusting

shims
kg
cm
in

lb

kg
cm
in

lb

mm
in

Pinion

bearing
adjusting
spacer

Ring
gear

Backlash
between

ring

gear
and

pinion

Run
out
of
rear
side
of

ring

gear
mm
in

mm
in

Side

gear
and

pinion
mate

Thickness
of
side

gear
thrust
washers
mm
in

PD
17
Replace
defective

parts

Replace
defective

parts

Replace
defective

parts

Replace
the
defective
oil
seal
Ammend
the

affected

flange
with
sand

paper
or

replace
if

necessary

Tighten
the
bolts
to

specified
torque

Replace
defective

parts
with

new
ones

Tighten
the

plug

Repair
or

replace

H145A

Hypoid

3
900
39
10

7

to
9

6
1
to
7
8

6
to
8
5
2
to
6
9

From
2
74
to
3
25

0
1079
to
0
1280

Spacing
0
Q3
0
0012

Non
adjustable
collapsible
spacer

0
10
to
0
15
0
0039
to

0
0059

Less
than
0
05
0
0020

0

76
to
0
91
0
0299
to
0

0358

Clearance
between
side

gear
and

thrust
washer
CHASSIS

rrun
in
0

10
to

0
20
0
004
to
0

008

Side

bearing

Standard
width
rom
in

Thickness
of

side

bearing
adjusting

shims
rom
in

Tightening
torque

Drive

pinion
nut

Ring
gear
bolts

Side

bearing

cap
bolts

Differential
carrier
to
axle

housing

fIx
nuts

Companion
flange
to

propeller
shaft

fIx
nuts

Oil
filler

plug
17

5
0

689

0

05
0
07
0
10
0
20
0
50

0

0020
0
0028
0
0039
0

0078
0
0197

kg
m

ft
lb

kg
m

ft
lb

kg
m

ft
lb
12
to
17
86

8
to
123

6
to
7
43
4
to
50
6

5
to
6
36
2
to
43
4

kg
m

ft
1b
17
to
2
5

12
3
to
18
1

kg
m

ft
lb

kg
m

ft
lb
2
0
to

2
7
14
5
to
19
5

6
to
10
43
4
to
72
3

SERVICE
JOURNAL
OR
BULLETIN

REFERENCE

DATE
JOURNAL

or

BULLETIN

No

I

I

I

I
PAGE
No

SUBJECT

PO
1S

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

DESCRIPTION

BRAKE

PEDAL

Removal

Inspection

Reinstallation

TANDEM
MASTER

CYLINDER

Removal

Disassembly

Inspection

Reassembly

Reinstallation

SINGLE
MASTER
CYLINDER

Removal
and

disassembly

Inspection

Reassembly
and
reinstallation

BRAKE
LINE

Removal

Inspection

Reinstallation

Brake
line

pressure
differential

warning
light
switch

FRONT
DRUM
BRAKE

cr

I

1
0

I

I

CD
BRAKE

BRAKE

CONTENTS

BR
2

BR
2

BR
2

BR
2

BR
2

BR
3

BR
3

BR
3

BR
3

BR
4

BR
4

BR
4

BR
5

BR
5

BR
5

BR
5

BR
5

BR
6

BR
6

BR
7

BR
8
Removal

and

disassembly

Inspection

Reassembly
and
reinstallation

FRONT

DISC
BRAKE

Brake

pad

Caliper

assembly

Reassembly

Reinstallation

REAR
BRAKE

Removal

and

disassembly

Inspection

Reassembly
and
reinstallation

HAND

8RAKE

Removal

Inspection

Reinstallation

ADJUSTMENT

Brake
shoe
clearance

Brake

pedal

height

Hand
brake

Bleeding
hydraulic
system

@

7

o

i

1

Brake
hose

2
Brake

master
cylinder

3

3
way
connector

4

Hand
brake
lever
5

Brake
hose

6
3

way
connector

7

Hanger
strap

8
Turn

buckle

Fig
BR

l
Brake

system

BR
BR
8

BR
9

BR
9

BR
lO

BR
Il

BR
12

BR
14

BR
16

BR
16

BR
17

BR
17

BR
18

BR
18

BR

19

BR
19

BR
20

BR

20

BR
20

BR
21

BR
21

BR
22

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

BODY
ElECTRICAL

When
the

ignition
switch
is
set
to
ON
the

ignition

wa

rning
circuit
is

closed
and
current
flows
flows
from
the

ignition
switch
to
the

warning
lamp
bulb

and

ground

through
the

regulator
When
the

engine
is
started
and
the

generator
comes
into
operation
the

generator
output

current

opposes
the
current
flowing
from
the

warning

lamp
in

effect
it
breaks
the

warning
circuit

ground

connection
and
the

lamp
goes
out

l

r

hffi
u

z
Ignition
switch

I
Q
6

I
0

c

M
1
E

8

ca
i

L

g

PI
lot
c

P

I

j

co

rt
0

relay
E
0

5

y
y
1

N
N
3

Alternator

Regulator

Fig
BE

41
Circuit

of
ignition
warning
system

HAND
BRAKE
WARNING
LAMP

This

lamp
functions
both
hand
brake

warning
larnp
and

BULB
SPECIFICATIONS
service
brake
line

pressure
differential
warning
lamp

When
a

difference
between
front
and

rear
brake
line

pressures
reaches
the
rated

range
13
to
17

kgfcm2
185

to

242
lb

sq
in
the

ground
circuit
for
the

warning
lamp

is

closed
and
the

warning
lamp
lights

IGNITION
SWITCH

WARNING

LAMP

L
E

WARNING

SWITCH

1
SERVICE

BRAKE
LINE

PRESSU
R
E

DIFFERENTIAL

WARNING

J
SWITCH

Fig
BE

42
Circuit

diagram
for
brake

warning

system

tern
Specifications

Square

type
meter
Round

type
meter

Meter
illumination

larnp
VoW
12
3
4
2
12

1
7
3

Turn

signal
pilot
lamp
VoW
12
3
4
2
12
1
7
2

Head

lamp
main
high
beam

VoW
12
3
4

I
12

17
1

pilot
lamp

Ignition
warning
lamp
VoW
123
4

I
12
17
1

Oil

pressure
warning
lamp
VoW
12
3
4

1
12
1
7

1

Hand
brake

warning
lamp
VoW
12
1
7
1

for
U
S
A

CANADA

Clock
illumination

lamp
VoW
123
4
I
12
17
2

Figure
encircled
in

parentheses
indicates
number
of
bulbs
used

BE
21