1979 DATSUN 210 oil pressure

Remove

snap
ring
CD
and
lock
bolt

@
and
the

following

parts
can
be

detached
from
heat

control
valve

shaft

Key

ID

Counterweight

@

Thermostat

spring

@

Coil

spring

@

Note
As

previously
descnbed

heat

control

valve

j
is

welded

to
valve

shaft

@
at

exhaust
manifold

and

cannot
be
disassembled

To
install

reverse
the
removal

procedure

INSPECTION

1
With

engine
stopped
visually

check
the

quick
heat
manifold

system

for
the

following
items

I
Check
heat
control
valve
for

malfunction
due

to
break
of

key
that

locates

counterweight
to
valve
shaft

2
Rotate
heat
control
valve
shaft

with

fingers
and
check
for

binding

between
shaft
and

bushing
in

closing

and

opening
operation
of

heat
control

valve
If

any
binding
is
felt
in

rotating

operation
move
valve
shaft
in
the

rotation

direction
several
times
If
this

operation
does
not
correct

binding

condition
it
is

due
to
seizure
between

shaft
and

bushing
and
exhaust
mani

fold
should

be

replaced
as
an

assem

bly
Emission
Control

System

Counterweight

Heat
control
valve

Stopper
pin

EC249

Fig
EC
IO

Checking
Heat
Control

Valve
Movement

2
Run

engine
and

visually
check

counterweight
to
see
if
it

operates

properly

I
When

engine
speed
is
increased

discharge

pressure
of

exhaust

gases

causes

counterweight
to

move

down

ward

clockwise

2
For

some
time

after

starting

engine
in

cold
weather

counterweight

turns
counterclockwise
until
it

comes

into

contact
with

stopper
pin
installed

to

exhaust
manifold

EC
9
Counterweight
gradually
moves

down

clockwise
as

engine
warms

up

and
ambient

temperature
goes
higher

around
exhaust
manifold

If
it
does
not
move
at
all
check

and

replace
thermostat

spring

AIR

INJECTION

SYSTEM
A

I
S

DESCRIPTION

The
Air

Injection
System
A
I
S

is

adopted
on
U
S
A

models

except
FU

models

and

injects
compressed
air

secondary
air

coming
from
the
air

pump
into

the
exhaust

port
of
the

cylinder
head
to
reduce

hydrocarbons

He
and

carbon

monoxide
CO
in

exhaust

gas
through
recombustion

There

are
two

types
of
Air

Injection

System

Fresh
outside
air
is
drawn

by
the
air

pump
through
the

air

pump
air

cleaner

Compressed
air
is

injected
into

the

exhaust

manifold

through
the

check
valve

The
A
B

valve

supplies
air
from
the

carburetor
air
cleaner
to
the

intake

manifold

so
as

to

prevent
after

fire

during
deceleration

The
amount

of

injected
air
is
con

trolled

by
C
A

C
valve

California

models
or
air

relief
valve

Non

California
models

Test

probe
of
a
circuit
tester

e
8J

terminal
EB

plate

@
plate
terminal

terminal
e
plate

e

plate
tenninal

e

plate
8J
plate

EB

plate
e
plate

Sub
diodes
can
be

replaced
individ

ually

CAUTION

If
it
is

necessary
to

remove
sub
diode

pinch
diode
lead
wire
with

a

pair
of

pliers
to

prevent
heat
transfer
from

soldering
iron
to
diode
when
unsolder

ing
connection

INSPECTION
OF
BRUSH

Check
movement
of
brush
and
if

uv
ent
is
not
smooth
check
brush

holder
and
clean
if

necessary

Check
brush
for
wear
If
it
is
worn

down
to
less
than
the

specified
limit

replace
brush

assembly

Check
brush

pig
tail
and
if

damaged
replace

EE651

Fig
EE
46
Brush
Wear
Limit

SPRING
PRESSURE
TEST

With
brush

projected
approximate

Iy
2

mm
0
08
in
from
brush
holder
measure
brush

spring

pressure
by
the

use
of

a

spring
balance

Normally
the

rated

pressure
of
a

new
brush

spring
is

255
to
345

gr
8

99
to
12
17

oz

Moreover
when
brush
is
worn

pressure
decreases
a

pproxirnately
20

gr

O
71

oz

per
I
mm
0
04
in

wear
Bru
h
lift

0

0

lJrJ

EE540
Engine
Electrical

System

Conduction

o

o

o

t
2

mm
0
08
in

L

ee049

Fig
EE
47
Mea

uring
Spring

Pressure

ASSEMBLY

Assemble
alternator
in
the
reverse

sequence
of
disassembly

noting
the

following

I
When

soldering
each

stator
coil

lead
wire

to
diode

assembly
terminal

carry
out
the

operation
as
fast

as

possible

2
When
installing
diode
A
terminal

install
insulating
bushing
conectly

3

Tighten
pulley
nul

dJ
Tightening
torque

Pulley
nut

4
5

to
6

0

kg
m

33
to
43
ft
lbl

When

pulley
is

tightened
make
sure

that

deflection
of
V

groove

EE

16
V
grOove
deflection

0
3

mm
0
012
in

slik

1I
I

I
EE051

Fig
EE
48
Tightening
Pull

y
Nut

4
Before

installing
front
and
rear

sides
of
alternator

push
rear
cover

brush

up
with

fingers
and
retain

brus
J

as
shown
in

Fig
EE
49
by
inserting

brush
tift
into
brush
lift
hole
from

outsi4e

Fig
EE

49
I

rUng
Bru
h

Lift

S
After

installing
front
and
rear

sides
of
alteniator

pull
brush
lift

by

pushing
toward
center

Note
Do
not

puD
brush
lift

by
push

ing
toward
outside
of

cover
as
it

will

damage
slip
ring
sliding
surface

Engine
Electrical

System

STARTING
MOTOR

Type
S1I4
160B

I
Sl14
163E

S114
253

Outer
diameter
of
commutator

mm
in
More
than
32
1
26
More
than

29
L14

Minimum

length
of
brush
mm
in
12

0
47
II

0
43

Brush

spring
tension

kg
Ib
1
4

to
1
8

3
1
to
4

0
1
6to
2
0

3
5
to
4
4

Clearance
between

bearing
metal
and

armature
shaft
mm

in
Less
than
0
2

0
008

Clearance
R
between

pinion
front

edge
and

pinioIl
stopper
mm
in
0
3
to

2
5
0
012
to

0
098

Difference
T
in

height
of

pinion

nun
in
0
3
to

1
5

0
012
to
0
059

ALTERNATOR

Type
LRI5049

Minimum

length
of

brush
mm

in
More
than
7
5

0
295

Brush

spring
pressure

gr
oz
255
to
345
8
99
to
12
17

Slip

ring
outer
diameter
nun
in

More
than
30
1
18

DISTRIBUTOR

Air

gap
mm
in
D4K8
19

I
D4K8
l3

I
D4K8
18

I
D4K8
02
D4K8
15

I
D4K8
16

0
3

to
0
5
0

012
to
0
020
Type

Cap
il1s
ation
resistance

M
1
More
than
50

Rotor
head
insulation

resistance
Mil
More
than
50

Cap
carbon

point
length

mm
in
10
0
39

Vacuum
advance
0
105
4
13

0
170
6
69
0
80

3
15
0
105
4
13

0
70
2

76
0
170
6
69

Distributor
degree
distributor
9

250
3

225
12
265
9
300
15

300
6
5
300

mmHg
inHg
9
84
8
86
10
43
11
81
11

81

11
81

Centrifugal
advance

0
550
6
550
0
550
0
550
0
750

0
750

Distributor

degree
distributor

14
2
300
14
2

300
13
5
2
400
13
5

2
400
10
2
400
10
2
400

rpm

EE

32

REMOVAL

It
is
much
easier

to
remove

engine

and
transmission

as
a
single
unit
than

to

remove
alone
After
removal

engine

can
be

separated
from
the
transmission

assembly

WARNING

a
Place
wheel
chocks
in
fronl

of

front

wheels
and
in

rear
of

rear

wheels

b
Be
sure
to
hoist

engine
in
a
safe

manner

c
You
should
not
remove

engine

until
exhaust

system
has
com

pletely
cooled
off

Otherwise

you
may
burn

your

self
and
or
fire

may
break

out
in

fuel
line

Note
Fender
coven
should
be

used

to

protect
car

body

1
Disconnect

battery
ground
cable

from

battery
terminal
and
fusible
link

at
wire

connector

2
Remove
hood

as
follows

CAUTION

Have
an
assistant

help
you
so
as
to

prevent

damage
to

body

I
Mark
hood

hinge
locations
on

hood
to
facilitate
reinstallation

2

Support
hood

by
ltand
and
re

move
bolts

securing
it

to
hood

hinge

being
careful
not
to
let
hood

slip
when

bolts
are

removed
See

Fig
ER
2

3
Remove
hood
from
hood

hinge

f

Il

I

BF133A

Fig
ER
2

Removing
Hood

Remove

under
cover

Drain

radiator
coolant
and

engine
3

4

oil

5

Disconnect

upper
and
lower
hoses

from
radiator
and
disconnect
oil

cooler
hoses
automatic
transmission

only

6
Remove
four
bolts

securing
radia
Engine
Removal
Installation

tor

to

body
and
detach
radiator
after

removing
radiator
shroud

7

Remove
air
cleaner

assembly

from
carburetor
as
follows

1
Remove

fresh
air
duct
from
air

cleaner

2
Remove
hot
air
duct
from
air

cleaner

3

Loosen
air
cleaner
band
bolt

4
Disconnect
air

cleaner
to
air

pump
hose

at
air
cleaner

5

Disconnect
air
cleaner

ta
rocker

cover
hose

at
rocker
cover

6
Disconnect
air

cleaner
to
A
B

valve
hose
at
air

cleaner

7
Disconnect
air
cleaner
to
related

vacuum
hoses
at
air

cleaner

8
Disconnect
accelerator
control

wire
from
carburetor

9
Disconnect

the

following
cables

wires

and
hoses

Wire

to
auto
choke
heater

Wire
to

throttle

opener
cut
solenoid

or

throttle
switch

Wire

to
fuel
cut
solenoid

Wire
to

vacuum
switching
valve

High
tension

cable
between

igni

tion
coil
and
distributor

Battery
cable
to
starter
motor

Wire
to
distributor

Wire

to
thermal
transmitter

Wire

to
alternator

Engine
ground
cable
oil

pressure

switch
and

engine
harness
No
2

See

Fig
ER
3

o

1
Ground
cable

2

Engine
harness
No

2

3
Oil

pressure
switch

Fig
ER

3
EA368

Disconnecting
Cable
and

Wire

Fuel
hose

at
fuel

pump
and
fuel

return

hose
at
connection

Air

pump
air

cleaner
hose

Carbon
canister
hoses

Heater
inlet
and
outlet
hoses
if

so

equipped

ER
3
Vacuum
hose
of

brake
booster
at

intake
manifold

Air
conditioner

equipped

model

10
Remove

compressor
belt

To

remove
loosen
idler

pulley
nut

and

adjusting
bolt

1
Remove
air

pump

2
Remove

compressor
retaining

bolts
and
move

compressor
toward

fender
to
facilitate
removal
of

engine

Nole
Never

discharge
gas
from
com

pressor
while
work
is

being

per

formed

II

Compressor

EA478

Fig
ER
4

Location

of
Air

Compressor

3
Disconnect
vacuum
hose
of
air

conditioner
from
connector
of
intake

manifold

4
Remove

F
i

C
D

actuator
from

bracket

II
Remove
clutch

operating
cylin

der
from
clutch

housing
manual
trans

mission

only

dJ

Tightening
torque

Clutch

operating
cylinder

E
A3

to
clutch

housing

3
1

to
4
1

kg

22
to

30
ft
lbl

Fig
ER
5

Removing
Clutch

Operating

Cylinder

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

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