1973 DATSUN B110 clutch

ENGINE

CLEANING
AND

INSPECTION

Clean

all
disassembled

parts
Be

careful
not

to
use

grease
dissolving
solvent

for

cleaning
of
the
over

running

clutch
armature

assembly
magnetic
switch

assembly
and

field
coils
since

solvent
dissolves

grease
packed
in
the

clutch
mechanism
and

damages
the
coils
or
insulators

Check
them
for

damage
or
excessive
wear

Replace

them
as

required

Terminal

Check
the
terminal

for

damage
and
wear
and

replace
if

necessary

Field
coil

Check
the

field
coil
for
insulation
If
the

coil
insulator

is

damaged
or
worn

replace

Testing
field
coil

for

continuity

Connect
test

probe
of
a
circuit
tester
or
a
resistance

counter
to
the
field
coil

positive
terminal
and

positive
brush

holder
If
the

tester
indicates

no

continuity
the
field
circuit
or

coil
is

open

O

Fig
EE
12

Cotltinuity
test

of
field
coil

Testing
field
coil
for

ground

Place
one

probe
of

a
circuit
tester
onto
the

yoke
and

the
othef
on
to
the
field
coil

positive
tenninal
If

resistance
is

read
the
field
coils
are

grounded
ol

I

Fig
EE
13
CTound
test

of
field
coil

Field
coil
test
for

short
ircuit

Un
solder
the

connected
section

of
each
coil

and
check

the

circuit
with
a
tester
in
the
same

manner
as

described
above

When
the
coil
is
defective

replace
the
coil

Brush
and
brush
lead
wire

Check
the
brush

contact
for

surface
condition
and

wear
When
the

brush
contact
is

loose

replace
the
brush

If
the
brush
is
worn
and

height
is
less

than
6
5

rom

0
2569
in

replace
it

Check
the
connection
of
the
lead

clip
and

lead
wire
for

conditions

Check
brush

holders
and

spring
clip
to

ensure
that

they

are
not
deformed
or
bent
and

properly
hold
brushes

against
the

commutator

If
the
brushes
Of
brush
holders
are

dirty
clean

Brush

spring
tension

Measure
the
brush

spring
tension

using
a

spring
scale
as

shown
in

Figure
EE
14
The

reading
should
be

approxi

mately
0
8

kg
I
76
Ib

EE
6

ENGINE

EE022

Fig
EE
18

Ground
test

of
armature

5
Check
the

armature
for
short
circuit

by
placing
it

on

an
armature
tester

placing
a
hack

saw
blade
over
the

armature
core
and

by

rotating
the
armature
If
the
saw

blade
vibrates
armature
is
short
circuited

EE023

Fig
EE
19
4
rmature
test

for
short
circuit

6
Check
the

armature
for

continuity
by

placing
probes

of
a
tester
on

two

segments
side

by
side

If
the
tester

shows
no

conduction
the
circuit
is

open

Over

runnmg
clutch

assembly

Check
the

over

running
clutch
for

operation
and

replace
if
the
clutch
is
defective
due
to

slippage
or

dragging

Inspect
the

pinion
assembly
and
sleeve

Slceve
must

slide

freely
along
the
armature
shaft

spline
I

f

damages
are

found
or
there

is
a
resistance
while

sliding
replace
Inspect
the

pinion
teeth
for
excessive

rubbing
and

replace

as

required
Check
the

flywheel
ring
gear
also
for

damage

and
wear

Testing
brush
holder
for

ground

Place
one
test

probe
of
a
circuit
tester
on
to
the
rear

cover
and
the
other
on

to
the

positive
side
brush

holder
If

the

tester
shows
conduction
the
brush
holdcr
is
shorted

to

ground
Replace
the
insulator
or
brush
holder

od

l

Fig
EE
20

GTound
test

of
bTush
holder

Pinion
case

bearing
metal

Inspect
the

bearing
metal
for

wear
and
sidc

play
If
the

clearance
between
the

bearing
metal
and
the

arma
ture

shaft
is

mOTe
than
0
2

mm
0
0079
in

replace
the
metal

Install
a
new

bearing
and

adjust
the
clearance

to
0
03

to

0
10
mm
0
0012
to
0

0039
in

Install
the

bearing
metal

so

that
the
end
of

the

bearing
metal
is

flush
with

gear
case

end

plane

Magnetic
switch

assembly

Inspect
the

magnetic
switch

contact
surface
If
the

contact

surface
is

rough

replace
Replace
the

pinion

sleeve

spring
if

weakened

When

inspecting
the
series

coil

apply
voltagc
8
to

12V
between
Sand
M

terminals
The
series
coil
is
normal

if

the

plunger
is
attracted

When

inspecting
the

shunt
coil
connect
the

S
terminal

M

terminal
and
switch

body
as
shown

in

Figure
EE
21

With
the

plunger
attracted

open
the

M
terminal
The

EE
S

Pinion
intermeshes

with

ring
gear

Starting
motor

rotates

and

pinion
intermeshes

with

ring
gear
but
ro

tation
is

too
slow

When

starting
switch
is

set
to
OFF
the
start

ing
motor
does
not

stop
Starting
motor

Battery

Wiring

Ignition
switch

Starting
motor

Ignition
switch

Magnetic
switch

Starting
motor
ENGINE

Faulty
pinion
sliding

Dropped
off
lever

pin

Excessive

plunger
L
dimension

Defective

over

running
clutch

Over

discharging

Improper
or
loose
terminal
contact

Improperly
tightened
connection

Rough
contact
surface

Shorted
armature
coil
or
field
coil

Worn
brush
or
insufficient

spring

pressure

Contaminated
commutator
or
im

proper
brush
contact

Defective
mica

Lack
of
metal
lubrication

Armature

contacted
with

pole
core

Faulty
returning

Seized
contact

Shorted
coil

Faulty

plunger
sliding

Pinion
does
not

disengage
from
the

ring
gear
smoothly

Pinion

spline
does
not

disengage

smoothly

Seized

pinion
metal

EE
14
Repair

Repair

Adjust

Replace

Charge
battery

Repair
and

retighten

Retighten

Repair
or

replace

Repair
or

replace

Repair
or

replace

Repair

Repair

Repair
or

replace

Repair
or

replace

Replace

Replace

Replace

Replace

Repair
or

replace

Repair
or

replace

Replace

ENGINE
REMOVAL

INSTAllATION

5

Disconnecting
clutch

wire
on

right
hand
drive

model

On

left
hand
drive

model
disconnect

hydraulic
line
from

the

clutch
slave

cylinder

Disconnect
the

clutch
wire
at
the

portion
of
the

withdrawal
lever
See
the
section

covering
the
clutch

6
Remove
the
exhaust
front

tube

ij

f

I

Fig
ER
11

Disconnecting
dutch
wire

7

Disconnect
the

cable
to
the

back

up
lamp
switch

8

Disconnect
the

speedometer
cable

9

Remove
the

propeller
shaft

Remove

four
bolts
used
in
the

differential
carrier
side

and

withdraw
the

propeller
shaft

10

Remove
the
shift
lever

Model

with
remote
control

shift
lever

Disconnect
the
remote
control

rod
at
the

portion
of

transmission
outer
lever

and

remove
the
remote

control

rod

Model

with
floor
shift

lever

Remove
the

boot
withdraw
the
lock

pin
and

remove

the
lever
The

operation
is
carried
out
in
the

passenger

compartment
Fig
ER
12

Removing
fTont
tube

Model
with

automatic
transmission

Remove

pins
from
both
ends
of

the
cross
shaft
and

remove

the
shift
rod

II

Suspend
the

engine
with
wire

Fig
ER
13

Removing
remote

control
rod

12

Remove
the
front

engine
mounting
installation

nuts

13
Remove

the
rear

engine
mounting
installation

nuts

14
When

removing
the

engine
mounting
installation

nuts
be
sure
to

apply
a

jack
beneath
the
transmission

ER
5

DATSUN
1200

MODEL
B

110
SERIES

I
NISSAN
I

NISSAN
MOTOR
CO
LTD

TOKYO
JAPAN
SECTION

CL

CLUTCH

CLUTCH

CLUTCH

CONTROL

SfRVICE
DATA
AND

SPECIFICATIONS

TROUBLE

DIAGNOSES
AND

CORRECTIONS
CL
1

CL
5

CL
12

CL
13

CLUTCH

CLUTCH

CONTENTS

DESCRIPTION

REMOVAL

DISASSEMBL
Y

INSPECTION
AND

ADJUSTMENT

Clutch

assembly
Cll

CL

2

CL
2

CL
2

CL
2

DESCRIPTION

The

clutch
is
a

single
dty
disc

diaphragm
spring

type

clutch
The

major

components
are
clutch

cover

pressure

plate

diaphragm
spring
and

wire

rings
The

clutch

disc
is

provided
with

riveted

pia
tes
on

both
surfaces

and
coil

springs
arranged
in
a

link
The
coil

springs
absorb

shock

while

engaging
the
clutch

softening
and

smoothing
clutch

30

1181

I
4J

I

m

I

I

5

O

N
l
l

9

p

1L
oz
l
t
O

Ii
N
lt

o

O

Vf

I

1

I

t
I

0

tN

00

f
M

g

1

co
0

00

U
N

N

y
Disc

assembly

Release

bearing
and

sleeve

REASSEMBL
Y
CL

3

CL

4

CL
4

CL
4

CL
5
Release

mechanism

REINSTALLATION

engagement

Release

bearing
sleeve
and

withdrawal
lever
are
used

to

control

clutch

engagement
and

disengagement

Each

part
of
the

clutch

assembly
is
secured
with
rivets

Therefore
when
a

trouble
is
uncorrectable

replace
the

clutch

assembly
wHh
J
new

assembly

93

53

3
682
JOOD4

33

Unit

mm
in

Fig
CL
l

Construction

of
clutch

ell

CHASSIS

REMOVAL

The
clutch

assembly
is

dismounted

primarily
in
the

same
manner
as
the

engine
assembly
Thus
when
dis

mounting
the

clutch

assembly
refer
to
the
Section

TM

Transmission
Removal
and
other

relative
sections

W

II

11
I
Clutch

assembly

I
2

I
Clutch
disc

assembly

Fig
CIr2
Clutch

assembly
and
disc

assembly

DISASSEMBLY

When

separating
the
clutch

assembly
from
the

flywheel
loosen

and
remove
the
installation
bolts

diago

nally
and

gradually

Note
When

separating
the
clutch

assembly
from

the

flywheel
support
the
clutch

cover

sufficiently
and

loosen
the
installation
bolts

gradually
and

carefully

because
the

diaphragm
spring
tension
is

always

applied

2

Removing
release
mechanism

I
Remove

the
dust
cover
from
the
clutch

housing

2
Remove

the
return

spring
from

the

bearing
sleeve

and

separate
the
withdrawal
lever
from

the

bearing
sleeve

3
Remove

the
release

bearing
and

bearing
sleeve

from

the

front
cover
and
remove
the
withdrawal

lever
from
the

withdrawal

lever
ball

pin
1

I
Withdrawal

lever
3

Release

bearing

2
Return

spring

Fig
CL
3

Disassembling
release
mechanism

3
Withdraw
the

release

bearing
from
the

bearing
sleeve

by
the
use
of
a

bearing
puller

I
t

I
Release

bearing

I
2

I
Bearing
sleeve

Fig
CIr4

Withdrawing
rekas

b04ring

INSPECTION
AND

ADJUSTMENT

Thoroughly
clean
all

disassembled

parts
except
for

disc

assembly
and
release

bearing
and
check
them

for

wear

crack
and
other

defective
conditions

Clutch

assembly

I

Check
the
clutch
cover

diaphragm

spring
pressure

plate
etc
for
excessive

wear
crack
and

damage
When

noise

occurs
on
the
clutch

assembly
replace

CL
2

CLUTCH

2

Measuring
and

adjusting
height
of

diaphragm
spring

I
Line

up
distance

piece
special
tool

ST20059001

on

clutch

assembly
base

plate
special
tool
ST20101O
0

ST20059001

I

ST20101000

Fig
CL
5

Base

plate
and
distance

piece

2

Place
the
clutch

assembly
on
the
distance

piece
and

set
the

clutch

assembly
on

the
base

plate
stationarily

Under
this
condition
the

distance

piece
is

placed
beneath

the

pressure
plate

3
Measure
the

diaphragm
spring
height
from
the

upper

surface
of
the
base

plate
with
vernier

caliper
depth
gauge

Height
of

diaphragm
spring
end
29
0

to
31
mm

1
142
to
1
220

in
at
diameter
62
mm
2
441
in

29
0
to
31

It
142
to
1

2201

6212
44
t

r
1

G
L
ir

I
LJIlW

I

y
y
x
l
i
0

BASE
PLATE

Unit

mm
in

Fig
CL
6

Measuring
height
of
dio

phTagm
spTing
4

Adjust
height
of

the

diaphragm
spring
by
the
use
of

diaphragm
spring
adjusting
wrench

special
tool

ST20
1
05000

if

required

Fig
CL
7

Adjusting
dio

phTagm
spring
height

Disc

assembly

If

the

facing
is

soiled
with

grease
or
oil
clean
off

with

gasoline
tetracWoride
and
dress
the

facing
with
a

wire
brush

Replace
the

facing
if

required

2

Check
the
disc
for
deflection
and

repair
or

replace
if

the

deflection
at
the
outer
circumference
of
the

facing

exceeds
the
following
value

Upper
limit
of
the
deflection

0
5

mm
0

0197
in

at

85
mm
3
3460
in

radius

Unit
mm
in

Fig
CL
8

Checking
disc

fOT
deflection

CL
3