1979 DATSUN 210 Service Manual

CLUTCH
DISC
AND

COVER

REMOVAL

1
Remove
transmission
from
en

gine
Refer
to

Removal
Section
MT

2

Insert
Clutch

Aligning
Bar

ST20610000
4

speed
tranSmission
or

KV30100IOO
5

speed
transmission

into

clutch
disc
hub

until
it

will
no

longer
gd
It
is

important
to

support

weight
of

clutch
disc
in
the

steps
that

follow

ST20610000

4

peed

transmission

KV30100100

S

peed

transmission

S

cL194

Fig
CL
W

Supporting
Clutch

Assembly
Clutch

CLUTCH
UNIT

n

j

3

Loosen
bolts

attaching
clutch

cover
to

flywheel
one
turn

each
at
a

time
until

spring

pressure
is
released

Be
sure
to
turn
them

out
in

a
crisscross

fashion

4
Remove
clutch
disc
and
cover

assembly

INSPECTION

Wash
all
disassembled

parts
except

disc

assembly
in
suiiable

cleaning
sol

vent
to
remove
dirt
and

grease
before

making
inspection
and

adjustment

FI
1
and

pressure
plate

Check
friction
surface
of

flywheel

and

pressure
plate
for

scoring
or

roughness
Slight
roughness
may
be

smoothed

by
using
fine

emery
cloth
If

surface
is

deeply
scored
or

grooved

the

part
should
be

replaced

Clutch
disc
sembi

Inspect
clutch
disc
for
worn
or

oily

facings
loose
rivets

and
broken
or

loose

torsional

springs

CL
7
1

Clutch
disc

assembly

2

Clutch
cover

assembly

3
ReleaJe

bearing

4

Bearing
sleeve

S

Withdrawal
lever

6

Withdrawa11ever
ball

pin

7
Return

spring

CL370

Fig
CL
9
Clutch
Unit

I
If

facings
are

oily
disc
should
be

replaced
In

this
case

inspect
transmis

sion

front
cover
oil
seal

pilot
bushing

engine
rear
oil
seals
and
other

points

for
oil

leakage

2
The

disc
should
also
be

replaced

when

facings
are
worn

locally
or
worn

down
io
ihe

specified
limit

Wear
limit
of

facing
A

Les
than
0
3
mm
0
012
in

9111

I

A

M

m

C
L336

Fig
CL
ll

M
asur

ng
Clutch

Facing

Wear

3

Check
disc

plate
for
runout
when

ever
the
old
disc

or
a

new
one
is

installed

4
If
runout
exceeds
the

specified

value
at
outer
circumference
of
fac

g

replace
or

repair
disc

Runout
limit

ltotal
indicator

reading

Less
than
0
5

mm
0
020
in

R
from
hub

center

85

mm
3
35
in

CAUTION

When

repairing
disc

plate
never
hold
it

forcibly
with

pUers
or
bend
it
exces

sively
otherwise

facing
will
be
dam

aged

CL112

Fig
CL

12

Repairing
DiM
Runout

5
Check
fit
of
disc
hub
on
transmis

sion
main
drive

gear

splines
for
smooth

sliding
If

splines
are
worn
clutch
disc

r
main

drive

gear
should
be

replaced

that

is
backlash
exceeds
the

specified

value
at
outer

edge
of

clutch
disc

Backlash

Less
than
0
4
mm

0
016

in

Clutch
cover
a

embly

I

Check
the
end
surface
of
dia

phragm
spring
for
wear
If
excessive

wear
is
found

replace
cluich
cover

assembly

2

Measure

height
of

diaphragm

springs
as
outlined
below

I

Place
Distance
Piece

ST20050100
on

Base
Plate

ST20050010

and
then

tighten
clutch

cover

assembly
on
base

plate
by

using

Set
Bolts
ST20050051
Clutch

ST200S0051

snOO50100

snoo
500
10

re1

F
A

J

eLlSl

Fig
CL
J3

Measuring
H

ight
of

Diaphragm
Spring

2

Measure

height
A
at

several

points
with

a
vernier

caliper
depth

gauge
If

height
A

of

spring
end
is

beyond
the

specified
value

adjust

spring
height
with

Diaphragm
Ad

justing
Wrench
ST20050240

as

sh
1wn

in

Fig
CL
I4

Diaphragm
spring

height
A

29

0
to
31
0

mm

1
142

to
1
220
in

If

necessary
replace
clutch

cover

assembly
Also
unevenness

of
dia

phragm

spring
toe

height
should
be

within
the

specified
limit

Unevenness
of

diaphragm
spring

toe

height

Less

than
0

5
mm
0
020
in

CL152

Fig
CL
I4

Adjusting
Spring

Height

3

Inspect
thrust

rings
for
wear
or

damage
As

these

parts
are

invisible

from
outside

shake
cover

assembly

up

and
down

to

listen
for

chattering

noise

or

lightly
hammer
on
rivets
for
a

slightly
cracked
noise

Any
of
these

noi

s
indicates

need
of

replacement
as

a

complete
assembly

INSTALlATION

I

Apply
a

light
coat
of

grease
in

cluding

molybdenum
disulphide
to

transmission
main
drive

gear
splines

Cl
8
Slide
clutch
disc
on
main
drive

gear

several
times
Remove

clutch
disc
and

wipe
off
excess
lubricant

pushed
off

by
disc
hub

Note
Take

special
care
to

prevent

grease
or
oil
rrom

getting
on
clutch

racing

2

Reinstall
clutch
disc
and

clutch

cover

assembly
Support
clutch
disc

and

cover
assemblies
with
Clutch

Aligning
Bar
ST20610000

4
speed

transmission
or
KV30100IOO
5

speed
transmission

Note
Be
sure

to

keep
disc

racings

flywheel
and

pressure
plate
clean

and

dry

KV30100100

5
peed

transmission

ST20610000

4

speed

trammisaion

CL32

Fig
CL
I5
Installing
Clutch

Diac
and

Cover

Aaembly

3

Install
bolts
to

tighten
clutch

cover

assembly
to

flywheel

squarely

Each

bolt
should
be

tightened
one

turn
at

a
time
in

a
crisscross
fashion

ifJ

Tightening
torque

Clutch
cover
bolt

1
6
to
2
1

kg
m

12
to
15
ft

Ibl

N

te
Dowels

are
used
to
locate

clutch

cover
on

flywheel

properly

4

Remove

clutch

aligning
bar

5

Reinstall
transmission

Refer
to

Installation

Section
MI

RELEASE
BEARING

REMOVAL

1

Remove
transmission
from
en

gine
Refer

to
Removal
Section
MI

2
Disconnect

return

spring
from

bearing
sleeve

3

Remove

release

bearing
and
sleeve

as
an

assembly
from
transmission

case

front
cover

4
Take
clutch
release

bearing
out

from

bearing
sleeve

using
a
universal

puller
and
a

suitable
adapter

Fig
CL
16
Di8auembling
Release

Bearing

INSPECTION

Check
for
abnormal

wear
on
COD

tact
surface
of
withdrawal
lever
ball

pin
and

bearing
sleeve

Hold

bearing
inner

race
and
rotate

outer
race
while

applying
pressure
to

it
If
the

bearing
rotation

is

rough
or

noisy
replace
bearing

INSTALLATION

1

Assemble
release

bearing
on

sleeve

using
a

press

Note
Do
not

depress
outer
race

i

L

Cl117

Fig
CL

17
nstalling
Release

Bearing

2

Before
or

during

assembly
lubri

cate
the

following
points
with
a

light

coat
of
multi

purpose
grease

eve

nner
1groove
of
release

bearing

Pack
this
reces5

4

CL093

Fig
CL

IB

Lubricating
Rece
of

Bearing
Sleeve
Clutch

2

Contact
surfaces
of
withdrawal

lever
lever

ball

pin
and

bearing
sleeve

3

Bearing
sleeve

sliding
surface
of

transmission

case
front
cover

C1195

Fig
CL
19

Lubricating
Points

of

Withdrawal
Lever

Bearing
Sleeve
and

Front
Cover

4
Transmission
main
drive

gear

splines
Use
grease
including
molybde

num

disulphide

Note
A
small
amounl
of

grease

should
be
coated
to
the
above

points
If
too
much
lubricant
is

applied
it
will
n
out
on
the

friction

plates
when
hot

resulting

in

damaged
clutch
disc
facings

3
After

lubricating
install
with

drawallever
release
bearing
and

sleeve

assembly
in

position
Connect
them

with
return

spring

1
Return

spring

2
Release

bearing

3
Withdrawal1cver

CL196

Fig
CL
20
Installing
Release

Mechanism

4

Reinstall
transmission
Refer

to

Installation
Section
MT

PILOT
BUSHING

REMOVAL

1

Remove
transmission
from

en

gine
Refer
to

Removal
Section
MT

2

Remove
clutch
disc
and
cover

assembly
Refer

to
Clutch

Disc
and

Cover
for

removal

CL
9
3
Remove

pilot
bushing
in

shaft

by
Pilot

Bushing

KVI0102800

KV10t02800
crank

Puller

Fig
CL
21
Removing
Pilot

Bushing

INSPECTION

Check

pilot
bushing
for
fit
in

bore

of

crankshaft

Check
inner
surface
of

pilot
bush

ing
for
wear

roughness
or
bell

mouthed
condition
If

pilot
bushing
is

worn
or

damaged
replace
When
bush

ing
is

damaged
be
sure

to
check

transmission
main
drive

gear
at
the

same
time

INSTALLATION

1

Before

installing
a
new

bushing

thoroughly
clean

bushing
hole

2
Install

pilot
bushing
so
its

height

A
above

flange
end
is

the

specified

value

Bushing
need
not

be
oiled

Pilot

bushing
inserting

distance
A

2
8

mm
0
110
in

Note
When

inserting
pilot
bushing

be
careful
not
to

damage

edge
of

pilot
bushing

A

EM719

Fig
CL
22

Installing
Pilot

Bushing

3

Install
clutch
disc
and
clutch

cover

assembly
Refer
to
Clutch
Disc

and

Cover
for
installation

4

Install

transmission
Refer
to

In

stallation

Section
MT

Clutch

SERVICE
DATA
AND

SPECIFICATIONS

ENERALSPECIFICATIONS

Clutch
control

system

Type
of
clutch
control

Clutch
master

cylinder

Diameter

Clutch

operating
cylinder

Type

Diameter

Clutch
disc

Type

Facing
size

Outer
dia

x
Inner
dia

x
Thickness

Thicmess
of
disc

assembly

Free

Installed

Number
of
torsion

springs

Clutch
cover

Type

FuU
load
Hydraulic

mill
in
15
88

mm
in
Adjustable

1746

180CBL

mrn
in
180
x
125
x
3
5

7
09
x
4

92
x
0
138

mm
in

mm
in
8
5
to
9
2
0
335
to
0
362

7

6
to
8
0
0
299
to
0
315

6

kg

Ob
CI80S

335
to
385
739
to
849

INSPECTION
AND
ADJUSTMENT

Clutch

pedal

Pedal

height
H

Pedal
free

play
A

Withdiawallever

play
B

Pedalfree
travel
C

Clutch
master

cylinder

Maximum
clearance
between

cylinder
bore
and

piston

Clutch

operating
cylinder

Maximum
clearance
belween

cylinder
bore
and

piston

Clutch
disc

Wear
liinit
of

facing

Depth
of
rivet

head
below

facing
surface

Runoullimit

Distance
of

runout

checking
point

from
the
hub

center

Maximum
backlash

of

spline

at
outer

edge
of

disc
mm
in

mm
in

mm
in

mm
in
143
to
149
5

63
to

5
87

1

to
5

0
04
to
0

20

1

0
to
2

0
0
039
to
0
079

16
to
33
0
63
to
1
30

mm
in

Less
than
0
15
0
0059

mm
in

Less
than
0
15
0
0059

mm
in

mm
in
0

3
0
012

0
5
0
020

mm
in
85

3
35

mm
in

0
4
0
016

CLIO

Clutch

Clutch
cover

Diaphragm
spring
height
mm
in

Unevenness
of

diaphragm
spnng
toe

height
mm
in
29
0

to
31

0
1
142
to
1
220

Less
than
O
5
0
020

TIGHTENING
TORQUE

Pedal

stopper
lock
nut

Master

cylinder
push
rod
lock

nut

Operating
cylinder
push
rod

lock
nut

Operating
cylinder
bleeder
screw

Master

cylinder
to

dash

panel
securing

nut
kg
m
ft
lb

Clutch
tube
flare
nut

kg
m

ft
Ib
kg
m
ft
b

kg
m

ft
Ib

kg
m

ft
b

kg
m
ft
b
0
8

to
1
2
5

8
to
8

7

0
8
to
1
2
5

8
to
8
7

0
8

to
1
2
5
8
to
8
7

0

7
to
0
9
5
1

to
6
5

0
8

to
1
2
5

8
to
8
7

1
5

to
1
8
11
to

13

Operating
cylinder
to
clutch

housing

securing
bolt

Qutch
hose
to

operating
cylinder

Qutch
cover
bolt
kg
m
ft

lb

kg
m
ft
Ib

kg
m

ft
Ib
3
1

to
4
1
22
to
30

17

to
2
0

12
to
14

1

6
to
2
1

12
to
15

CL
11

Condition

Clutch

slips

Clutch

drags
Clutch

TROUBLE

DIAGNOSES
AND

CORRECTIONS

Probable

cause
and

testing
Corrective
action

Slipping
of
clutch

may
be
noticeable

when

any
of
the

following
symptoms
is

encountered

during
operation

I
Car
will
not

respond
to

erigine
speed
during
acceleration

2
Insufficient

car

speed

3
Lack
of

power

during
uphill

driving

Some
of
the

above
conditions

may
also
be
attributable
to

engine
problem
First
determine

whether

engine
or
clutch
is

causing
the

problem

If

slipping
clutch
is

left
unheeded
wear

and
or

overheating
will
occur
on
clutch

facing
to
such

an
extent
that
it
is

no

longer
serviceable

TO

TEST
FOR
SLIPPING
CLurCH

proceed
as
follows

During
upgrade
havelling
run

engine
at

about
40
to
50

km
h
25
to
31
MPH

with

gear
shift

lever
in

3rd
speed
position
shift
into

highest

gear
and
t
the
same
time

rev

up
engine
If
clutch

is

slipping
car
willnot

readily
respond
to

depression
of
accelerator

pedal

Clutch

facing
warn

excessively

Oil
or

grease
on
clutch

facing

Warped
clutch

cover
or

pressure
plate
Replace

Replace

Repair
or

replace

Dragging
clu

tch
is

particularly
noticeable

when

shifting

gears
especially
into

low

gear

TO
TEST
FOR

DRAGGING
CLurCH

proceed
as
follows

I
Start

engine

Disengage
clutch
Shift
into

reverse

gear
and
then
into
Neutral

Gradually

increase

engine

speed
and

again
shift
into
reverse

gear
If
clutch
is

dragging
gear
grating

is
heard
when

shifting

gears
from
Neutral
into

Reverse

2

Stop
engine
and
shift

gears
Conduct
this
test
at
each

gear
position

3
In

step
2

gears
are
shifted

smoothly

except
1st

speed
position
at

idling

a
If

dragging
is

encountered

at
the
end
of

shifting
check
condition
of

synchro

mechanism
in

transmission

b
If

dragging
is
encountered
at
the

beginning
of

shifting
proceed
to

step
4

below

4

Push

change
lever
toward
Reverse
ide

depress
pedal
to
check
for
free

travel
of

pedal

a
If

pedal
can
be

depressed
further
check
clutch
for

condition

b
If

pedal
cannot
be

depressed
further

proceed
to

step
5

below

5
Check

clutch
control

pedal
height
pedal
free

play
free

travel
withdrawal
lever

play
etc

If

any
abnormal

condition
does
not
exist
and
if

pedal
cannot
be

depressed
further
check

clutch
for

condition

Clutch
disc

runout
or

warped

Wear
or
rust

on
hub

splines
in

clutch

disc

Diaphragm
spring
toe

height
out
of

adjustment
or
toe

tip
worn

Worn

or

improperly
installed

parts
Replace

Clean
and
lubricate

with

grease
or

replace

Adjust
or
replace

Repair
or

replace

CL12

Condition

Clutch
chatters

Noisy
clutch

Clutch

grabs
Clutch

Probable
cause
and

testing
Corr
ctive
action

Clutch

chattering
is

usually
noticeable
when
car
is

just
rolled
off
with
clutch

parlially

engaged

Weak
or

broken
clutch
disc
torsion

spring

Oil
or

grease
on
clutch

facing

Clutch

facing
out

of

proper
contact
or

clutch
disc
runout

Loose
rivets

Warped
pressure
plate
or
clutch
cover

surface

Unevenness
of

diaphragm

spring
toe

height

Loose

engine
mounting
or
deteriorated

rubber

A
noise
is

heard
after

clutch
is

disengaged

Damaged
release

bearing

A

noise
is

heard
when
clutch
is

disengaged

Insufficient

grease
on
the

sliding
surface

of

bearing
sleeve

Clutch
cover

and

bearing
are
not

in

stalled

correctly
Replace

Replace

Replace

Replace

Repair
or

replace

Adjust
or

replace

Retighten
or

replace

I
Replace

Apply
grease

Adjust

A
noise
is
heard
when
car

is

suddenly
rolled
off
with

clutch

partially
engaged

Damaged
pilot
bushing

I
Replace

When

grabbing
of
clutch
occurs
car
will
not
roll
off

smoothly
from
a

standing
start
or
clutch

will

be

engaged
before
clutch

pedal
is

fully
depressed

Oil
or

grease
on
clutch

facing

Clutch

facing
worn
or

loose
rivets

Wear

or
rust

on
splines
in
drive
shaft

and
clutch
disc

Warped
flywheel
or

pressure
plate

Loose

mountings
for

engine
or

power

train

units

CL13
Replace

Replace

Clean
or

replace

Repair
or

replace

Retighten

Clutch

SPECIAL
SERVICE
TOOLS

Tool
number
tool

name

ST206100ll0
Clutch

aligning
bar

KV30100100
Clutch

aligning
bar

STI0050100
Distance

piece

ST20050010
Base

plate

0
@
IKent
Moore

No

Reference

page
or

Fig
No

Unit

application

125673

Fig
CL

1O

Fig
CL
15

F4W60L

Fig

qIO

Fig
CL
15

FS5W60L

Fig
CL
13

Fig
CL
13
Tool
number
tool
name

ST2005005
I

Set
bolts

YVYYVYVV

ST20050240

Diaphragm
spring
adjusting

wrench

KVIOl02800
Pilot

bushing

puller

GG94310000
Flare
nut

torque
wrench

Applicable
to
all
B310
series
model

C114
Kent
Moore
No

Reference

page
or

FiR
No

Unit

application

Fig
CL

I3

Fig
CL
14

J25657

Fig
CL
21

Page
CL
3

Page
CL
5

Page
CUi