bolt pattern DATSUN B110 1973 Service Repair Manual

CHASSIS

DIFFERENTIAL

CARRIER

CONTENTS

DESCRIPTION

REMOVAL

DISASSEMBL
Y

INSPECTION
AND
REPAIR

ASSEMBLY
AND
ADJUSTMENT

Assembling
differential

gear
case

Setting
and

adjusting
drive

pinion
PD
4

PD

5

PD
5

PD
7

PD
8

PD
9

PD
10
Adjusting
drive

pinion
preload

Setting
and

adjusting
side

bearing
shims

INSTALLATION

TROUBLE
DIAGNOSES
AND

CORRECTIONS

SERVICE
DATA
AND
SPECIFICATIONS

DESCRIPTION

Apply
chassis

grease
to
oil
seal

lip
when
assembling

Tightening
torque
of
drive

pinion
nut

12
to
17

kg
m

86
8
to
122
9
ft

Ib

A
correct

contact

pattern
means

that
it

lies

in
the

range
of

213
to
3
4
from
the

tip

of
the
tooth
under
no
load
Backlash
is

O
10
to
0

15mm
10
0039
to
0
0059
in
Pinion

bearing
adjust

spacer

Tightening

torque
of
drive

gear
bolt

6
0
to
7
0

kg
m
43
4
to

50
6
ft

Ibl

Tighten
by

tapping
bolt
head
with

a

0
1

kg
1
4
Ib
hammer

Drive

pinion

adjusting
washer

T
W

N

IH
xO

OlJ
O

21mml

Side

gear
thrust

washer

Left
side
T1
A
C
0
H

j
x
0
01
0
200
E

mm

Right
side
T2
B
0
H
0
01
0
200

F
mm

Fig
PD
4
Sectional
view

of

differential
carrier

PD
4

Y
I
PD
l1

PD
12

PD
15

PD
16

PD
17

CHASSIS

Before

inspecting
various

parts
thoroughly
wash

them

so
that

damage
and
wear

can
be

easily
detected

Then

proceed
as

follows

Check

gear
teeth
for

scoring
cracking
and

chipping

and
make

sure
that
tooth

pattern
indicates

correct

meshing
depth

If

any
defect
is
evident

replace
parts
as

required

Note
Drive

pinion
and
drive

gear
are
supplied
for

replacement
as
a
set
therefore

should
either

part

be

damaged
replace
as
a
set

Check
the

pinion
gear
shaft
and

pinion
gear
mating

faces
for

scoring
and

signs
of
wear
and

replace
as

required

Follow
the
same

procedure
for
inner

faces
of
side

gear

and
their
seats

on
differential
case

3

Inspect
all

bearing
races

and
rollers

for

scoring

chipping
or
evidence
of
excessive
wear

They
should
be

in

tiptop
condition
not
worn
with

mirror
like
surfaces

Replace
if
there
is
a
doubt
on
their

efficiency
since

an

incorrect

bearing
operation

may
result
in
noisiness

and

gear
seizure

4

Inspect
thrust
washer
faces

Small
defects
can
be
corrected
with

emery
paper
In

ASSEMBLY
AND
AD
JUSTMENT

Tightening
torque
of
side

bearing

cap
bolts

5
to

6kg
m
36
2
to

43
4
ft
lb

co

g

E

E

on

N
case
the
clearance
between
the
side

gear
and
thrust
washer

exceeds
0
2

mm
0
0079
in

replace
the
thrust
washers

Three
kinds

of
thrust
washers

are
available

5

Measure
run
out
of
the
drive

gear
at
the

rear
side

using
a
dial
indicator

When
the

run
out
is

more
0

05

mm
0
0020

in

replace

the
drive

gear
and

pinion
gear
as
a
set

Fig
PD
15

Measuring
run
out

of
drive

gear

6

Inspect
carrier
and
differential

case
for
cracks
or

distortion

Replace
defective

parts
as

required

Adjust

spacer
of

adjusting
drive

pinion

without

drive

gear
oil
seal
Preload
for

pinion

bearing
6
to
8

kg
em
5
2
to
6
9
in
Ib

1

9
to
2
6

kg
4
2
to
5
7
Ib
at
bolt
hole

1

Tightening
torque
of
drive

pinion
nut

12

to
17

kg
m

86
8

to
122

9
ft

Ibl

Fig
PD
16
Carrier

section

PO
8

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