1973 DATSUN B110 Service Repair Manual

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Page 161 of 513

DATSUN B110 1973 Service Repair Manual
STEERING

DESCRIPTION

The

steering
system
consists

of

recirculating
ball

type

gear
box

and

parallelogram
linkage

These

systems
give
good

response
light
handling
and

utmost
dura

Page 162 of 513

DATSUN B110 1973 Service Repair Manual
Iii

I
o

t

I

I

CHASSIS

Fig
ST
2

Steering
wheel

REMOVAL

1
Remove
the

horn

ring
and

remove
the

steering
wheel

nut
and

pull
out
the

steering
wheel

by
the
use

of
a
Steer

Page 163 of 513

DATSUN B110 1973 Service Repair Manual
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

sele

Page 164 of 513

DATSUN B110 1973 Service Repair Manual
CHASSIS

Note
Be
careful
not
to
allow
the
ball

nut
running
down

to
either
end
of

the
worm

The
ends
of
the
ball

guides
will

be

damaged
if

the
nut
is
allowed
to

rotate

CHASSIS

Note
Be
careful
not
to
allow
the
ball

nut
running
down

to
either
end
of

the
worm

The
ends
of
the
ball

guides
will

be

damaged
if

the
nut
is
allowed
to

rotate
until

stopped
at
the
end
of

the
worm

5
Pull
out
the
column

assembly
from
the
column

jacket

6
Remove
the

sector
shaft
oil
seal

7
Take
out
the

rear

bearing
outer
race
from
the

column

jacket
using
a

puller

8

Take
out
the

bearing
inner

races
from
the
front
and

rear

worm

bearings

9
Remove
the

column
shaft

bearing

Ball
nut

assembly

If
the
ball
nut

assembly
or

column
is

defective

recommend
the
column

assembly
to
be

replaced
because

assembly
and

adjustment
of
the
column

assembly
are

very

difficult

However

for

your
reference

disassembly
assembly

and

adjustment
are
described
as
follows

Disassembly

L
Remove
the

damp
of
the
ball

guide
lube
and

withdraw
the
ball

guide
tube
out
of
ball
nut

2
Turn
the

nut

upside
down
and

rotate
the

column

back
and
forth
until
all

38
balls
are

dropped
out
of

ball

nut
With
the
balls
removed
the
nul
can
be

pulled

endwise
off
the
column

Note
Be
careful
not
to
lose
the
balls
and
make
sure
that

total
number
of
balls
is
60
balls
7
32
in
dia

l

Inspection

Check
ball

guide
tubes
for

damage
at
the
ends

where

they
pick
up
the

balls
from
the
helical

path
Replace

guide
tubes
if

damaged
Assembly
and

adjustment

1
Assembie
the
ball

nut
on
the

worm
with

the
ball

guide
hole

up

2

Drop
19
balls
into

each
of

two
hoies
on
the

same

side

of
ball

nul

Turn

the
column

gradually
away
from
the

hole

being

filled

Continue
until
all
38
balls
are
installed

Note
I
n
cases
where
the
balls
are

stopped
by
the
end
of

the
column
hold

down
these
balls

already
dropped

into
the
ball

nut
with
the
blunt

end
of

a
clean
rod

or

punch
and
turn

the
column
in
the
reverse

direction
a
few
turns

The

filling
of
the
circuit
can
then
be
continued

It

may
be
o

ry
to
work
the
column
back
and

forth

holding
the
balls
down
first
in

one
hole
then

the
other
to
close

up
the

space
between
the
balls

and
fill
the
circuit

completely
and

solidly

3

Place

remammg
22
balls

in
halves
of
ball

guide

tubes
11
each
of

two
halves

4

Close
this

half
of

guide
tube
with
the
other

half

Hold
the

two
halves

together
and

plug
each

open
end

with
vaseline
so
that
balls
will

not

drop
out
while

installing

5

Push
the

guide
tubes
into
the

guide
holes
of
the

ball

nut

6

Assemble
the

ball

guide
tube

clamp
to
the

ball
nut

INSPECTION
AND
REPAIR

I
Measure
axial

clearance
between
the
steel
balls
and

ball

nut
and
if
the

clearance
is

more
than
0
08
mm

0
0031

in

replace
the

parts
as
a

complete
unit

2

Inspect

gear
teeth
of
sector
shaft
and
ball

nut
for

wear

or

damage
If
there
is

any
sign
of

damage
replace

3

Inspect
bearings
for
wear
or

chip
Replace
bearings
as

required

4

Inspect
the
serration
of
sector

shaft
and

colunm
for

wear

ST
4

Page 165 of 513

DATSUN B110 1973 Service Repair Manual
STEERING

ASSEMBLY
AND

AD
JUSTMENT

Tightening
torque
1
5
to
2
5

kg
m

110
8
to
18
1

ft
lb

II

1
r
I
II

U
J

Standard
shim
O
5mm
0

0197
in

1

Press
in
oil
seal

into
t

Page 166 of 513

DATSUN B110 1973 Service Repair 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
in

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

Page 167 of 513

DATSUN B110 1973 Service Repair Manual
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

Page 168 of 513

DATSUN B110 1973 Service Repair Manual
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
for

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