wheel DATSUN B110 1973 Service Workshop Manual

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

CHASSIS

I
l
I

I

2

fa

r

o

Fig
ST
14

Collapsible
steering

DESCRIPTION

This
column
is

designed
to
be

compressed
under
an

impact
When

an
automobile
is

being
driven
the
forward

movements
of
the

automobile
and
the
driver
constitute
a

form
of

energy
or

force
When
the
automobile
is
involved

in
a

head
on
collision
the

primary
force
forward
move

ment
of
the
car
is

suddenly
halted
while

the

secondary

force
the

driver
continues
in

the
forward
direction
A

severe
collision

generally
involves
these
two
forces

primary
and

secondary
The

secondary
impact
occurs

when
the
driver
thrusts
forward
onto
the

steering
wheel

and
column

The

collapsible
column
is

designed
to
absorb

primary

and

secondary
forces
to
the

extent
that

the

severity
of
the

secondary
impact
is

reduced

thereby
reducing
the
tenden
cy
to
move
rearward
into
the
driver
s

compartment
A

split
second
later
when
the
driver
is
thrown
forward
the

secondary

impact
this

energy
is
also

partially
absorbed

by
contraction
characteristics
of
the
column

When
the

collapsible
column
is

installed
in
a

car
it
is

no
more

susceptible
to

damage
than
an

ordinary
column

however
when
the
column
is
removed

special
care
is

required
in

handling
the

assembly
When
the

column
is

removed
from
the

car
such
actions
as
a

sharp
blow

on
the

end
of
the

steering
shaft

or
shift
levers

leaning
on
the

column

assembly
or

dropping
of

the

assembly
could
bend

the

steering
column

jacket
especially
the
bellows

part

which
absorbs
the

energy

ST
8

CHASSIS

The

sliding
block
is
secured
on
the

steering

post

bracket
with

bolts

upper
half
of
the

steering
column
is

supported
on
the

bracket
and
thus
the

steering
post

clamp
is
installed

on
the

body

When
a

large

impact
is

applied
from
the

driver
side
the

plastic

pins
are
cut
off
and

leaving
the

sliding
block
in
the

steering
post
bracket
side
the

clamp
proper
is

disengaged

downward

together
with
the

jacket
tube

For

any
force

applied
from
front
direction
of
the

vehicle
the

steering
post
clamp
sliding
block

does
not

move
rearward
This
construction
is
called
One

way
slide

system
and
with
this
construction

projection
of
the

column
shaft
toward

the
driver
is

prevented
completely

COLUMN
BEARING

b

ciJ
STEERING

WHEEL
SIDE

1
Jacket
tube

2
Washer

3

Snap
ring
4
Column
bush

5
ColurtlO
shaft

Fig
ST
21

Column

bearing
Construction
of
the
column
shaft

upper
bearing
is

as

such
that
both
radial
and
thrust
forces

are
absorbed

DISASSEMBLY

First
remove
the

snap
ring
from
the

upper
surface
of

the

column

bushing
Thereafter

general
instructions
for

ordinary
steering
apply

Inspect
and

adjust
the
sector

shaft
worm
ball

nut
unit

adjust
screw
unit

worm

bearing
and
other
relative

parts

in
accordance
with
the
instructions
for

ordinary
type

steering

INSPECTION

Inspect
the

parts
such
as
column

shaft

jacket
tube
etc

which

are
used

to
absorb

energy
in

accordance
with
the

following
instructions

Check
the
column

shaft

plastic
pin
for
breakdown

2
Check
the

steering
lock
collar

for

warping
and
screw

for
breakdown

3
Measure
tolal

length
of
the

jacket
tube

Replace
if

contracted
However
when

tube

collapse
is
within
3
mm

0

1181
in

adjustmenl
by
means
of

bushing
is
also

possible

4

Check
the

steering
post
clamp
sliding
block
for

tightness

5

Check
the
column
shaft
for

bending
When
the

A
and

B

portions
are

supported
the

bending
should
be
less
than

1
0
mm
0
0394
in

at
the
C

portion

I

l

j
B
H
I

I
lO

J
L
5

0
1969

C
J6

A

UNIT
mm
in

Fig
ST
22
Measurement

of
defective
column

shafr

ST
12

CHASSIS

The

following
tightening
torque
of
nuts

shall
be

adopted

Ball
stud

nut

3
0
to
5
0

kg
m

21
7
to

36
2
ft

lb

Gear
arm
nut

14

kg
m

101
ft
lb

Idler
arm

nut

57
to
6
3

kg
m
41
2

to
45
6

ft
lb

2

Assembly
of

the
idler

assembly
is

accomplished
as

follows

I
Apply
soap
water

on
the

outer
circumference
of

bushing

Press
the

bushing
into
the
idler

arm

carefully
until
the

bushing
protrudes
equally
at
the
both

sides

2

Fit
idler

arm

body
in
the
rubber

bushing

Keep
the

idler
arm
center
line
in

parallel
with
the

chassis
center
line

INSTALLATION

Installation
can
be

accomplished
in
the
reverse

order
of

removal

Pay
attention
to

the

following

points

Set
the

length
of
both
side

rods
to

296
8
mm
11

69

in
It
should
be
done

between
the

ball
stud
centers

2

Check
wheel

alignment
and

if

necessary
adjust
it

ACCIDENT
COLLISION

When
accident
collision
occurs

unfortunately
and

the

vehicle

especially
its
front
unit
is

damaged
conduct

inspection
in

accordance
with
the

following
instruction

Inspect
the

steering
system

particularly
carefully

because
it
is
a

very
important
unit
for

driving

I

Check
both
side

steering
angles
for
correct
balance

2

With
the
tires

positioned
at
neutral

steering
wheel
bar
for

correct

position
check
the
l
3

Operate
the

steering
system
and
check

it
for

sliding

noise

4

Check
the

operation
for
smoothness

l
5
Check
the

side
rod
and
cross

rod
for

bending

6
Check
the

gear
arm

for
crack

7
Check

the

gear
housing
tiglltening
bolt
for
slackness

and

installation
boss

for
crack

8

Check
the

sector
shaft
serration

for

twisting

9

Check
the
sector

gear
for

crack

10

Check
the

ball
screw

for

pitting

II

Check
the

column
shaft
for

bending
crack
and

sliding
scar

12

Check
the

jacket
tube
for

bending

13
Check
the

steering
post
clamp
for

existance
of

column
offset

14
Check
the

side
member

gear
housing
installation
unit

for
deformation

IS

Check
the

portion
of

the

steering
post
bracket

installed
on

the

steering
post
clamp
for
correct

installation

AD
JUSTMENT

I

Toe
in

The

procedure
of

toe
in

adjustment
is
outlined
in

section

FRONT
AXLE
AND
FRONT
SUSPENSION

2

Steering
angle

Under
the

specified
load
4

passengers
adjust
the

stopper
bolt
of

the
knuckle
arm
so
that
the
inner
wheel

has
an

angle
of
430

Note

Specified
steering
angle
of
wheel
is
430
for
inner

wheel
and
36005
for
outer

wheel

ST
16

STEERING

SERVICE
DATA
AND

SPECIFICATIONS

Type

Gear
ratio

Steering
wheel
diameter

Oil

capacity

Steering
angle
inner
wheel

outer
wheel

Play
steering
wheel

Standard

thickness
of
worrn

bearing
shims

Initial

turning
torque
of

column

assembly

Clearance
of

adjusting
screw
to

sector

shaft

Length
of

side
rod

Tightening

torque

Steering
wheel
lock

nut

Steering
post
clamp
to

steering

post
bracket
bolls

Collapsible

Steering
column
hole

cover
bolts

Column
to

gear
housing
bolts

Side
cover
to

gear
housing
bolts

Adjusting
screw

lock
nut

Sector
shaft
to

pitman
arm
nut

Gear

housing
to
side
main

bar

bolts
and

nuts

Idler
arm
nut
Recirculating
ball

type

mm
in

L

US

pt
Imp
pt
15
I
I

400
157

0
24

I
2
3
8

430

360

mm
in
20
to
25

0
787
to
0
984

mm
in
0
5
0
0197

kg
em
in
oz
2
0

to
5
0

27
8
to
69
4

mrn
in

mm
in
0
05
0

0020

296
8

11
69

kg
m

ft
lb
3
0

to
3
5
217
to
25
3

kg
m
ft
lb

kg
m
ft
Ib

kg
m

ft
lb

kg
m

ft
lb

kg
m
ft
lb

kg
m
ft
lb

kg
m

ft
lb
0
8

to
1
0
5

8
to
7
2

1
5

to
1
8
10
8

to
13

0
8
to
1
0
5

8
to
7
2

1
5
to
2
5

10
8
to

18
1

I
7
to
2
8

12
3
to
20
2

2
0
to
3
0

14
5

to
21

7

14
101

kg
m
ft
lb

kg
m

ft
lb
1
9
to

2
6

13
7

to
18
8

57

to
6
3

41
2
to
45

6

Idler
arm
to
side
main

bar
bolts
and

nuts

kg
m
ft
Ib

Ball

stud
nuts

kg
m
ft
lb

Side
rod
bar

lock
nuts

kg
m
ft
lb
1
9

to
2
6
13
7

to
18
8

3
0

to
5
0
21
7

to
36
2

8
0

to
10
0
57
8
to
72
3

ST
17

CHASSIS

TROUBLE

DIAGNOSES
AND

CORRECTIONS

Condition

Heavy
steering

Loose

steering

PuU
to
one

side

Steering
shock
Probable
cause

Low
tire

pressure

Incorrect

front
wheel

alignment

Lack
of

lubricant

Firm

sticking
of

the
ball

joint
and
strut

bearing

Improper
adjustment
and

damage
of

steering

gear
housing

Hard

locking
of

column

bearing

Incorrect
front

wheel

bearing
adjustment

Loose

steering
linkage
connections

Loose

steering
gear
housing

mounting

Incorrect

adjustment
of

adjust
nut

Incorrect
tire

pressure

Incorrect
front
wheel

alignment

Incorrect

front
wheel

bearing
adjustment

Unequal
brake

adjustment

Weak
front

suspension
units

Deformation
or

improper
fitting
of
sus

pension

Incorrect
front
wheel

alignment

Loose
front
wheel

bearings

Loose

steering
linkage
connection
and

trans

verse
link

Incorrect

adjustment
of

ball
nut

Wheels

out
of

balance

ST
18
Corrective

action

Inflate

tires
to

recommended

pressure

Adjust
to

specifications

Lubricate

steering
gear
and
ball

joints
or

replace
worn
ball

joint

Replace

Adjust
or

replace
according
to
instructions

Lubricate
with

bearing

grease

Adjust
or

replace
as

required

Inspect
replace
worn

parts
if

any
and

tighten
nuts
to
recommended

torque

Tighten
mounting
bolts

to

proper
torque

Adjust
according
to

instructions

Inflate
to
recommended

pressure

Inspect
and

correct
front
wheel

alignment

Adjust
bearings
according
to

instructions

Adjust
brakes

Replace

Check
correct
or

replace

Inspect
and
correct
front
wheel

alignment

Adjust
bearings

Inspect
replace
worn

parts
if

any
and

tighten
nuts
to

proper
torque

Adjust
steering
gear
according
to

in

structions

Inspect
and
correct
wheel

balance

@

7
11
@

C
C

B
B

@

I

L
IJ

A
A

F
F

n
18

@

1
@

H
H

@

@

Y

J

@
SEDAN

rN
Al

RQ
I

l

E

IN
A

D
D

I
I

4
DOOR
BODY

8
G

D1
J
Is
s

r
Jn
BJ

V

V
L

C
H
H

CJ

U

I

II

I

E
E

Q

@
DETAILS
OF
G

PORTION

1

Roof
11
Inner
roof
rail

2

Cowl
top
12
Rear
floor

3
Hood
13
Rear
fender

4
Lower
dash
board
14
Brace

5
Front
floor
15
Inner
reaT

pillar

6
Front
fender
16
Air
box

panel

7
Side
dash
board
17
Outer
sill

B
Inner
center

pillar
18
Inner
wheel
house

9
Inner
dOOf
19
Outer

wheel
house

10
Outer
door

Fig
nF
5
Cross
sectional
view

1

BF
3

J
J

CD

11
BODY

I
K

L
L
N
N

@
r

T
I

c

cb
I

cp

M
M

J

Ii
0
0

SEALING
ON

CIRCUMFERENCE

OF
REAR

FLOOR

@
Ii

DETAILS
OF
Q

PORTION
DETAILS
OF
R

PORTION

1
Rear
floor

2
Rear
fender

3

Luggage
compartment
floor

rear
side

4
Front

pillar

5
Front
fender

6
Ou
tee
door

7
Fue
filler

cover

8
Shock
absorber

mount
bracket
9

Seat
back

support

10
Inner
lock

pillar

11
Lock

pillar

12

Roof

13
Rear
waist

14

Luggage
compartment
lid

15
Rear

panel

16
Outer
wheel
house

Fig
BF
6
Cross
sectional
view
II

BF
4

COUPE
BODY

T

@

T

v
v

vv

l

2

DOOR
1

5

Vv
t

t
tJ

DETAILS
OF
8

PORTION

1

r
I

A

A

J

C

C

j

@

cr

U

D
D

@

DETAILS

OF
E

PORTION
1

Roof

2
Inner

side
body

3
Rear
fender

4
Outer
door

5

Front

pillar
6
Front

fender

7
loner
wheel

house

8
Rear

floor

9
I
Rner
lock

pilla
c

to
Lock

pillar

Fig
BF

7
Cross

sectional
view
III

SF

5