height DATSUN B110 1973 Service User Guide

CHASSIS

Ii

t

L

1

J

rJ
I

e

i
L
rubber

parts
und
alcohol

long
than
30
seconds

After
the

parts
are
cleaned

dry
them
with
com

pressed
air

Check
the

cylinder
and

piston
for

damage
and

uneven
wear
on
the

sliding
surface
and
for

other
defective

conditions

Replace
as

required

2

Replace
if
the

cylinder
and

piston
clearance
is

more

than
0
15

mm
0

006
in

3
In

principle
replace
the

piston
cup
packing
and

valves

with
new
ones
whenever

the
master

cylinder
is

disassembled
Be

sure
to

replace
if

damaged
worn

weakened

or

expanded

4
Check

the
return

springs
for
wear

damage
and
other

defective
conditions
and

replace
as

required

5

Replace
others
if

deformed

damaged
or
defective

Reassembly

Assemble
the
master

cylinder
in

reverse

sequence
of

SINGLE
MASTER
CYLINDER

s
m

e
disassembly
noting
the

following
matters

Apply
brake

fluid
to
the

component
parts
such
as

cylinder
bore

piston
etc
and

carry
out

the

operations

carefully
so
that

the

component
parts
are
not

damaged
or

no
dust
and
other

foreign
matters
enter
the

cylinder
and

brake
fluid
reselVoir

Moreover
for
rubber

parts
such
as

piston
cup
etc

apply
rubber

grease
slightly

Tightening
torque

Valve

cap

2
5

to
3
5

kg
m

I8
to
25
3

ft
Ib

Bleeder
screw

0
5

kg
m
3
6
ft
lb

Stopper
bolt

0
5
to
0
3

kg
m
l
I
to
2

2ft
lb

Reinstallation

Reinstall
the

master

cylinder
in

reverse

sequence
of

removal
After
air

bleeding
make

sure
that

no
brake
fluid

leaks
from
the
circuit
For
the

pedal
height
adjustment

refer
to
lhe

paragraph
pedal
adjustment

r
11L

y

Fig
BR
5
Cross

sectional
view

of
single
master

cylinder

BR
4

BRAKE

Brake

pedal
height

I

Fl
I

Jl

BRAKE
MASTER

CYllN

ADJU
SHI

1

I
195mm
001971011

THICKNESSIO
8
mm

00315
Inl

116mm
00630In
TOP
LAMP
SWrTCH

r

b

O

ZOlTlI
I

A
12
n

Y
1
O

09

ttr
i
l

Fig
BR
52
Brake

pedal
adjustment

1
Loosen
the

stopper
up
to
such

extent
that
the
brake

pedal
stopper
is

separated
from
the

pedal
arm

2
Measure

height
of
the
brake

pedal
head
from
the

dash

panel
and

adjust
the

adjusting
shim
between
the

brake
master

cylinder
and
dash

panel
so
that

height
is

143
5
mm
5
65
in

Adjusting
shim
thickness

for
selection

0
5
mm
0

0197
in

0
8
mm
0
0315
in

1
6
mm
0
0630
in

Note
When

adjusting
be
sure
to

use

adjusting
shims

having
same
thickness
for

upper
and
lower
brake

master

cylinder
installation
bolts

3

Upon
completion
of

adjusting
shim

adjustment

tighten
the

stopper
down
to
such
an

extent
that

height
of

the

pedal
head
is
141
5

t2
mm
5
57

to
0787
in

and

tighten
the
lock

nut

securely

4
Free
travel
of
the
brake

pedal
is
5
to
15
mm

0
197

to
0
591
in
and
the
stroke
is
120
mm

4
72

in
Hand
brake

Turn
the
turn
buckle

properly
and

adjust
hand
brake

lever

operating
stroke

correctly
so
that

operating
stroke
is

78
5
mm
3

091
in
6
notches

at

operating
force

of
11

to
15

kg
24
3
to
33
1
1b

Upon
completion
of

adjustment
be

sure
to

tighten
the

lock
nut

I

I
Rear
cable

2
Turn
buckle

3
Lock
nut
1451
Front
cable

Propeller
shaft

Fig
BR
53

Adjusting
turn

buckle

BR
21

CHASSIS

2

Upon

completion
of

the

adjustment
release
the
hand

brake

lever
and
make
sure
that
the
rear

wheels
are

not

braked

Normal
stroke

78
5

mm
3

091
in
6
notches

Limited
stroke

136
0

mm
5
35
in
10
notches

The
term
Stroke
means

height
from
the

standard

position
220

mm
8
7
in

above
the
hand

brake
lever

fulcrum

Note

Readjust
hand
brake
stroke
when
it
reaches
the

limited
stroke
136
mm
5
35
inl
10
notches

Bleeding
hydraulic

system

Bleeding
the

hydraulic
brake

system
deserves

much

attention
as
it
is

an
essential

factor
for

regular
service

brake

operation

As
a
matter
of

fact

during
the

brake
service
air
is

likely
to

creep
into
the
circuit
with

the
result
that

the

fluid
action
is

altered
and
the
brake

pedal
becomes

spongy

at
the
travel
end

Bleeding
should
be
carried
out
at
first
with

the
masler

cylinder
then
from
the

longest
line
from
the

master

cylinder
and
then
finish

up
with
the
shortest

Note

Always
clear

away
any
dirt
around
master

cylinder

reservoir

cover
before

removing
cover
for

any

reason
Never

depress

pedal
while

brake
drums
are

removed
unless
bleeder

valve
is

open

Top
up
the
reservoir

master

cylinder
with
fluid

of
the

recommended

type

2

Thoroughly
wipe
the
bleeder

screw
and
from

any

mud
or

dust

present
so
that
the

outlet
hole
is

free
from

foreign
matter

3

Attach
a

vinyl
hose

to
the
wheel

cylinder
bleeder

screw

Dip
the
end
of
the

vinyl
hose
in
a

jar
con

taining

some
brake
fluid

BR

22
I
I

I
Air
bleeder

I
2

I
Vinyl
hose

Fig
BR
54

Connecting
vinyl
hose
to
air
bleeder
rear

4

Depress
the

brake

pedal
two
to

three
times
and

keep

the

pedal
fully

depressed

5

With
the
brake

pedal
fully
depressed
loosen
the

bleeder

screw
exhaust
air

and

retighten
the

bleeder
screw

quickly

6
Return
the
brake

pedal
slowly

7

Repeat
the

operations
4

through
6

above
Air

will

no

longer
come
out

from
the
bleeder

screw
but

brake

fluid
comes
out
When
air

still
exists
in
brake
fluid
it

appears
white
due

to
air

bubble

8

Conduct
air

bleeding
on
other
wheel

cylinders
in

the

same
manner

Note

a
Check
the
reservoir
for
fluid
level

during
bleed

ing
operation

b
Fluid

withdrawn
in
the

bleeding
operation

should

not
be
used

again
for

refilling

c
When
the

master

cylinder
is
disassembled

or

replaced
conduct
air

bleeding
on
the
wheel

cyl

inder
which

is
located
most
near
the
master

cylinder

d

Ordinarily
air

bleeding
is

performed
in
the

following
sequence

Rear

left
Rear

right
Front
left

Front

right

e
Do

not
retum
the
brake

pedal
before

re

tightening
the
bleeder

screw

BRAKE

SERVICE
DATA
AND
SPECIFICATIONS

Brake

pedal

Pedal
free

height

Full

stroke
of

pedal
head

Master

cylinder
mm
in

mm
in
141
5
t2
5
57
to
0787

120
4
72

17
5
11

16

Inner

diameter
of
master

cylinder
mm
in

Allowable
maximum
clearance
between

cylinder
and

piston
mm
in

Wheel

cylinder

Inner
diameter
of
wheel
cylinder

Front
drum

disc

Rear

front
disc

Allowable
maximum

clearance
between

cylinder
and

piston

Brake
drum
and
rotor
disc

Drum

brake
inner
diameter

Rotor

disc
outer
diameter

Rotor
thickness

Drum
inside
out
of
roundness

Max

allowable
drum

inner

diameter

Run
out
of
the

rotor

Max

allowable
rotor

thickness

Lining
dimensions

Front
drum
brake

Lining
width

x
thickness
x

length

Total

braking
area
0
13
0

0051

mm
in

mm
in

mm
in

mm
in
20
6

13
16

48
1
1

894

20

6
13

16

1746
11
16

mm
in
0
18
0

0071

mm
in

mm
in

mm
in

mm
in
203
2
8
00

212
5
837

9
5

03740

Below
0
Q2
0

0008

mm
in

mm
in
204
5

8
051

Below
0
03
0

0012

mm
in
8
4
03307

mm
in

cm2

sq
in
35
x
4
8
x
195
1
378
x
0
1890
x
7
68

273
423

BR

2J

Pedal

yields
under

slight

pressure

Excessive

pedal

travel

All

brakes

drag

One
brake

drags

Unbalanced
brakes
BRAKE

Use
of
a
brake
fluid
with

a

boiling
point

which
is
too
low

Reservoir

filler

cap
ven
t
hole

clogged
This

promotes
a
vacuum
in
master

cylinder
that

sucks
in
air

through
rear
seal

Deteriorated
check
valve

External

leaks

Master

cylinder
leaks

through
primary
cap

System
has

not
been
bled

Improperly
adjusted
clearance

Fluid
level
in

master

cylinder
is
too
low

Thermal

expansion
of
drums
due
to

over

heating

Insufficient
shoe
tlrdrum

clearance

Weak
shoe

return

springs

Brake
shoe

return
no
free

travel

Seized
master

cylinder
piston

Loose
or

damaged
wheel

bearings

Weak
broken
or

unhooked
brake

shoe

return

springs

Insufficient
clearance
between
brake
shoe

and
drum

Grease
or
oil
on

linings

Seized

piston
in
wheel

cylinder

Tires

improperly
inflated

Loose
wheel

bearing

BR
25
Change
with
the

specified
brake

fluid
and

bleed

system

Clean
reservoir
filler

cap
and
bleed
the

system

Fit
a

new
check

valve
and
bleed
the

system

Check
master

cylinder
piping
and

wheel

cylinder
for
leaks
and
make

necessary
re

pairs

Overhaul
master

cylinder

Bleed

the

system

Adjust
shoe

to
drum

clearance

Full

up
with

specified
brake

fluid

Bleed
the

system
if

required

Allow
drums

to
cool
off
Check
brake

shoe

linings
and
drums

Replace
damaged

parts

Adjust
clearance

Replace
the

springs

Adjust
pedal
height

Service
the

master

cylinder
replace
the

piston
and
bleed

the

system

Adjust
or

replace
wheel

bearings

Replace
spring

Adjust
brakes

Clean
brake
mechanism

replace
lining
and

correct
cause
of

grease
or

oil

getting
on

lining

Service
the
wheel

cylinder
and

bleed
the

system

Inflate
tires

to
correct

pressure

Adjust
wheel

bearing

CHASSIS

Description

The
accelerator

linkage
is

lightv
eighL
and
onstfuction

is
such
that
the

linkage
operates
smoothly
and
is

unaffected
bv

engine
vibration

Adjustment

Play
of
accelerator
wire

I
Install
the

pedal
arm
side

securely
with
a

spring

clamp

2
Set
the
dash
board
side

Quter
case

stationarily
with

a

cap
nut
Do
not
set
the
carburetor
side

adjusting
unit

stationarily

3

Pull

up
the
carburetor
side
socket
toward
P

direction

up
to
such
an
extent
that
the
throttle
lever
is

about
to

move

pull
down
the
socket

I
to
1
5

mm

0

0394
to
0
0590
in
frorn
that

position
toward

Q

direction
and
set
the
socket

stationarily
with
a

clamp

THROTTLE

LEVER

Q

I
I

I
Clamp

I
2

I
Sockel

Fig
FJ
3

Adjusting
play
of
a
ccelerator

wire

Pedal

stopper

Depress
the
accelerator

pedal
down

to
such

an
extent

that
the
throttle
lever

fully
opens
adjust

stopper
bolt

height
so

that
clearance
between
the
accelerator

pedal

reverse
side
and

stopper
bolt
head
T
is
0
to

I

mm
0

to
0
03Q4
in
and
secure
the

stopper
bolt
with
lock

nut
Fig
FE
4

1djusting
pedal

stopper
height

left
hand

steering

T
0
to
1
mm

0
to
0
0394
in

@

I

I
Lo
k

nut

2
Accelerator

pedal

I
3

I
Stopper
bolt

Fig
FE
5

Adjusting
pedal
stopper
height

right
hand

steering

Note
8
Do
not
bend
the
accelerator

pedal

b

Adjust
accelerator
wire

play
and

stopp
bolt

height
correctly

c

Apply
chassis

grease
No
a
or
1
to
the

sliding

part
of

pedal
bracket

Model
with
automatic
transmission

For
model
with

automatic
transmission
the

pedal
ann

is

equipped
with

kick
down
switch
striker
This
is

only

difference
with
the

standard
model

Note
Note
that
the
kick
down
switch
should
not
come

into
contact
with
the

pedal
arm
striker
when
the

accelerator

pedal
is

depressed

FE
2

BODY

UNDERBODY
ALIGNMENT

CONTENTS

UNDERBODY
GENERAL
SERVICE

INFORMATION

ALIGNMENT
CHECKING
PROCEDURE
BF
9

BF
9

UNDERBODY
GENERAL

SERVICE

INFORMATION

Since
each

underbody
component
directly
affects
the

overall

strength
of
the

body
it
is
essential
that

proper

welding
sealing
and
rust

proofing
techniques
be
observed

during
service

operations

Whenever
the

body
is

repaired
be

sure
to
provide
the

repaired
body
parts
with

rust

proof

In
the

case
of
a

rust

proofmg
critical

underbody

component
it
is
essential
that
a

good
quality
type
air

dry

primer
such
as
corrosion
resistant
zinc
chromate
be
used

Do

not
use
combination

type
primer
surfacers

ALIGNMENT
CHECKING

PROCEDURE

Misalignment
in
the

underbody
affects
the
front

fender
door
trunk
lid

and
window

alignments
and
also

the
tail

gate
and
rear

body

opening
alignments
in
the

case

of
a
station

wagon
or
van

Underbody
misalignment

particularly
affects

the

suspension
system
thereby
causing

various

problems
that
arise
from

suspension
misalignment

It
is
essential
that

underbody

components
be

aligned

within
the

specified
dimensions

given
in

Figures
BF
13
14

and
IS

In

the
event
of

collision
damage
it
is

important
that

underbody
a1ignrnent
be

thoroughly
checked
and
if

necessary
realigned
to
the

specified
dirnensions

There
are

many
tools
that

may
be

ernployed
to
correct

collision

damage
such

as
frame

straightening
machines

external

pulling
equipment
other
standard

body
jacks
PRINCIPLES
OF
TRAMMING

CAR
PREPARATION

TRAMMING
SEQUENCE
BF
9

BF
10

BF
10

To
assist
in

checking
alignment
of
the

underbody

components
repairing
minor

underbody
damage
or

locating
replacement
parts
the

following
underbody

dimensions
and

alignment
checking
information
are

presented

PRINCIPLES
OF
TRAMMING

All
reference
locations
shown
in

Figure
BF
13
14
and

15

are

symmetrical
at
the
centerline
of
the
vehicle
For

example
wheo

performing
a
crosHheck
of
the

body
floor

panel
dimensions

Figures
BF
I3
14

and
IS
the

diagonal
measurement
should
be
the

same
in
boflii

directions
Cross

checking

operations
are
used
to
deter

mine
the

relationship
between
two
locations
on
the

underbody

To

measure
the

distance
between

any
two

reference

points
on
the

underbody
accurately
two

specifications

are

required

I
The

horizontal
dimension
between
the
two

points
to

be

measured

2
The
vertical
dimension
from
the
datum

line
to
the

points
to
be
measured
For
an

example
the

diagonal

measurement
calculated
on
a
horizontal

plane
between

reference

points
of
dimension
line
L
shown
in

Figure

BF
I3
is
631
3
mm
24

8
in
The

specifications
from
the

datum

line
have
a
vertical

height
difference
of
11
6

mm

0
456
in
between
the

forward
location
of
dimension

L

at
vertical
dimension
80
0
mm
3
150
in
and
the

rearward
location
of
dimension
L
at

vertical
dimension

91
6
mm
3
606
in
The

vertical

pointer
used
at
the

forward
location
should

be

positioned
so
as
to
extend

11
6

mm
0
456
in

further
from
the
tram
bar
than
the

BF
9

Tool
number

Tool

name

STl9
I
50000

Anti

dieseling

solenoid

spanner

Clutch
tool

ST20610000

Clutch

aligning

bar

ST20101000

Clutch

assembly

base

plate

ST20059001

Clu
tch

assembly

distance

piece
SERVICE
EQUI

PMENT

Figure

mm
inch

12

10
4721

0
o

8

C
307

l
j

@@

SE
4
Description

For

installing
the
anti

dieseling

solenoid

spanner

For

centering
the
clutch
disc

For

measuring
the

diaphragm

spring
height
Use
with
the

distance

piece

For

measuring
the

diaphragm

spring
height

Use
with
the

base

plate
S
M
reference

page
See

Fig
No

Page
EF
12

Page
ET
9

Fig
CL
14

Fig
CL
5

Fig
CL
5

Tool
number

Tool
name

ST20105000

Diaphragm
adjust

wrench
SERVICE
EQUIPMENT

Figure

mm
inch

Manual
transmission
tool

ST22350000

Main
shaft

bearing

drift

ST23030000

Counter
shaft

bearing

press

stand

ST23050000

Counter

gear

height

gauge

SE
5
Description

For

measuring
the

diaphragm

spring
height

For

assembly
of
the
main

shaft

bearings

For

assembly
of
the
counter

shaft

bearings

For

measuring
the
counter

bearing
height
from
the
trans

mission

case
rear
end
S
M

reference

page
See

Fig
No

Fig
CL
7

Fig
TM
36

Fig
TM
39

Fig
TM
30

Fig
TM
31

Tool
number

Tool
name

ST30600000

Drive

pinion

bearing
drift

ST31121000

Heigh
t

gauge

ST31122000

Dummy
shaft

ST3154llllUll

Drive

pinion

flange
wrench

ST3250S000

Side

bearing

adjust
weight
SERVICE
EQUIPMENT

Figure

mm

inch

15516
101

36114171dia

31
1
220
dia

70

2
756

cHa

r

84
513
271

20
O
Je7l
diil

L

9I17510Y

sE
lO
Description

For

installing
the
drive

pinion

rear
bearing
inner
race

For
height
adjustment
of

the

drive

pinion

For

height
adjustment
of
the

drive

pinion

For
removal
of
the
dri
ve

pinion
nut

For

determining
the
side

bearing
adjust
shim
S
M

reference

page
See

Fig
No

Page
PD
II

Fig
PD

22

Fig
PD
23

Fig
PD
22

Fig
PD
23

Fig
PD
12

Fig
PD
25