relay DATSUN 210 1979 Service Manual

I

Secondary
slow
air

bleed

2

Secondary
main
air
bleed

3

Secondary
main
nozzle

4

Primary
main
nozzle

5

Primary
main

air
bleed

6

Primary
slow
air
bleed

7

Primary
slow

jet

8

Primary
main

jet

9
Idle
nozzle

10
Primary
throttle
valve

II

Auxiliary
valve

12
Seco
dary
throttle
valve

13

Secondary
main

jet

14

Counterweight

IS

Secondary
slow

jet

EF419A

Fig
EF
24
At
Full

Open
High
Speed
Engine
Fuel

Secondary
slow

system

Step
system

The
construction
of
this

system

corresponds
to

the

idling
and
slow

system
of
the

primary
system

This

system
aims

at
the

power

filling
up
of
the

gap
when

fuel

supply

is
transferred
from

the

primary
system

to
the

secondary
system
The

stepport

is
located

near
the

auxiliary
valve
in
its

fully
closed
state

ANTI

DIESELING
SYSTEM

The

carburetor
is

equipped
with
an

anti
liese1i

lg
solenoid

valye

As
the

ignition
switch
is

turned
off

the
valve
is

brought
into

operation

shutting
off
the

supply
of

fuel
to

the

slow
circuit

The

following
figure
shows
a
see

tional
view

of
this

control

An

ti
dies

eling
solenoid
valve

Ignition
switch
OFF

ON

t

L
li

FLOAT
SYSTEM

There
is

only
one
float
chamber

while
two
carburetor

systems

primary

and

secondary
are

provided

Fuel
fed
from
the
fuel

pump
flows

through
the
filter
and
needle
valve
into

the
float

chamber
A
constant
fuel

level
is
maintained

by
the

float
and

needle
valve

Because
of

the
inner
air

vent

type

float

chamber
ventilation
fuel
con

sumption
is

not
affected

by
dirt
ac

cumulated
in

the
air
cleaner
Ignition
switch

Q

1

T
Battery

niT

EC
3

Fig
EF
25

Anti
dieseling
Solenoid
Valve

The
needle
valve
includes

special

hard

steel
ball
and
wiD

not
wear
for
all

its

considerably

long
use

Besides
the
insertion
of

a

spring

will

prevent
the

flooding
at

rough
road

running

THROTTLE
OPENER

CONTROL
SYSTEM

T
O
C
S

Except
FU

model

The
function

of
the
throttle

opener

is
to

open
the

throttle
valve
of
the

carburetor

slightly
while
the
car
is
in

EF
10
deceleration

During
deceleration

the

manifold
vacuum
rises
and

the

quan

tity
of
mixture
in
the

engine
is

not

suffICient
for
normal

combustion
to

continue

4
consequently
a

great

amount
of

unburned
HC
is
emitted

Carburetors

equipped
with

the

throttle

opener
supply
the

engine
with

an

adequate
charge
of

combustible

mixture
to
maintain

proper
combus

tion

during
deceleration

resulting
in
a

dramatic
reduction
in
HC

emission

The

system
for
the

manual
trans

mission
model
consists
of

servo
dia

phragm
vlicuum

control
valve
throttle

opener
solenoid
valve

spee
l

detecting

switch
and

amplifier
On

the
auto

matic

transmission
model
an
inhibitor

and
inhibitor

relay
are
used
in

place
of

speed

detecting
switch
and

amplifier

on
the
manual
transmission

model
An

altitude

corrector
fitted
to
vacuum

control
valve

serves
to

automatically

regulate
the

operating
pressure
in

the

system
with

variation
of

atmospheric

pressure

T
o
C
S
n

operatIon

At
the

moment

when
the

manifold

vacuum
increases
as

occurs

upon
de

celeration

the
vacuum

control
valve

opens
to
transfer

the
manifold

vacuum

to
the
servo

diaphragm
chamber
and

the
throttle
valve
of
the

carburetor

opens

slightly

Under
this

condition
a

proper

amount

of
fresh
air

is
sucked

into
the

combustion
chamber
As
the
result

complete
combustion
of
fuel
is

as

sisted

by
this
additional
air

and
the

amount

of
H
C

contained
in

exhaust

gases
is

dramatically
reduced

Throttle

Clpener
sol
nold

valve

operation

Manual

transmission
models

The
throttle

opener
solenoid
valve

is
controlled

by
a

speed

detecting

switch
which
is

actuated

by
the

speed

ometer
needle

As
the

car

sp
ed
falls
below
16

km
h
10
MPH

this
switch
is
acti

vated

producing
a

signal

The

signal
is

led
to
the

amplifier
so

that
the

signal
can
be

amplified
to

a

degree

large
enough
to
actuate
the

ELECTRIC
AUTOMATIC

CHOKE

An
electric
heater
warms
a
bi
metal

interconnected
to
the
choke
valve
and

controls
the

position
of
c
oke

valve

and
throttle
valve
in
accordance

with

the

time

elapsed
the
warm

up
condi

tion
of
the

engine
and
the
outside

ambient

temperature

Electric
heater

The
electric

heater
is
made

up
of

a

semiconductor
and

installed
in

the

automatic
choke
cover
in

the

body

2
Bi
metal

Electric
current

flows

through
the

heater

as
the

engine
starts
and
warms

the
bi
metal
The

deflection
of
the

bi

metal
is

transmitted
to
the
choke

valve

through
the

choke
valve
lever

3

Fast
idle
cam

The

fast
idle

cam
determines
the

opening
of
the

throttle
valve

SQ
that

the

proper
amount

of
mixture

cor

responding
to
the

opening
of
the

choke
valve
will
be

obtained
The

opening
of
the

choke
valve
is
de

pendent

upon
the
warm

up
condition

of

the

engine

4
Choke
unloader

When

accelerating
the

engine
during

the

warm

up
period
that
is

before
the

choke
valve

opens
sufficiently
this

unloader
forces
the

choke
valve

open
a

little

so
as
to
obtain
an

adequate

air
fuel
mixture

S

Vacuum
break

diaphragm

After
the

engine
has
been
started

by
cranking
this

diaphragm
forces
the

choke
valve

open
to
the

predetermined

extent
so
as
to

provide
the

proper

air
fuel
ratio

A
two

stage
acting
type
vacuum

diaphragm
is

employed

6
Si
metal

case
index
mark

The
bi
metal
case
index
mark
is

used
for

selling
the
moment
of
the

bi
metal
which
controls
the
air

fuel

mixture
ratio

required
for

starting
Engine
Fuel

r
m

2

3

4

5

6
r
3

1

@
@
Alternator
L

terminal

Automatic

choke

relay

Automatic
choke

cover

P
T
C
heater

Bi

metaJ

spring

Choke
valve

Fig
EF
31
Electric
Automatic
Choke

l
eater
EF045A

l

A

Higher
ambient
temperature

Manifold

vacuum
Clearance
B

B
Lower
ambient

temperature
Clearance

Manifold

vacuum
1
Hi
metal

2
P
T
e
heater

3
Thermostat
cover

4
Vacuum

diaphragm

5
Fast
idle

earn

6
Bi
metal
cover

index
mark

7
Choke
shaft
lever

8
Choke
valve

9
Unloader

tang

10
Throttle
valve

11
Fast

idle

adjusting
screw

EF243

t

Diaphragm

2

Spring
I

3

Spring
11

4
Rod

5
Choke
valve

6
Plate

@
7
Bi
metal

EF884

Fig
EF

32
Electric
Automatic
Choke

EF

13

CHOKEUNLOADER

I
Close
choke
valve

completely

2

Hold
choke

valve

by
stretching
a

rubber

band
between
choke
shaft
lever

and

stationary
part
of

carllUretor

3
Pull

throttle
lever
until
it

com

pletely
opens

4
Under
this
condition

adjust
clear

ance
e
See
illustration
between

choke
valve
and
carburetor

body
by

bending
unloader

tongue
See

Fig

EF
37

Clearance
C

All

modelS
ex

pt
F
U
model

2
36

mm
0
0929

in

FU
model

2
17

mm
0
0854
in

Note
Make

sure
that
throttle
valve

opensfuDy
when
carburetor
is

mounted

on
car

If
throttle
valve
fails
to

open
fully

unloader
becomes

inoperative
re

suiting
in

poor
acceleration
after

engine
is
started

AUTOMATIC

CHOKE

HEATE
IRCUIT

Checking
heater

circuit
with

function

connector

CAUTION

00

not
attach

test
leads
of
8
circuit

tester
to
those
other
than

designated

I

With

engine
not

running
check

for

continuity
between
A
and

B

If

continuity
exists
heater
is

fune

tioning
properly

If

continuity
does
not
exist

check

for
discon
nected

connector
or

open

P
T
C

heater
circuit

2

With

engine
running
at

idle
check

for

presence
of

voltage
across
A

and
B

If
voltmeter

reading
is
12
volts

heater
circuit
is

functioning
proper

ly

If
voltmeter

reading
is
zero

check

for
disconnected
connector

open

circuit
or

faulty
automatic

choke

relay

3

Replace
faulty

parts
Engine
Fuel

c

i

CD

1
Rubber
band

2
Unloa
er

tongue

3
Choke
vaJve

f
rC
EC150

Fig
EF

37

Adjusting
Choke
Unloader

SJ

v

1

Ignition
switch

2
Automatic
choke

relay

Engine
stop
ON

Engine
start
OFF
3
Automatic
choke
heater

4
Function
test
connector

5
L
terminal
of
alternator

EF

16
Fig
EF

38
EF433A

Checking
Automatic
Choke
Heater
Circuit

with
Function
Teat
Connector

AUTOMATIC
CHOKE

MECHANISM

I
Before

starting
engine
fully
de

press
accelerator

pedal
to
ensure
that

choke

valve
closes

properly

2
Push

choke
valve
wi
th
a

finger

and

check
for

binding

3

Check
to
be

sure
that
bi

metal

cover
index
mark
is
set
at
the
center
of

choke

housing
index
mark

as
shown

below
I

Note
Do

not
set
b

metal
cover
index

mark

at

any
position
except
the

center
of
choke

housing
index

mark

CD
@

Thermosta

t
covel

Bi
metal
chamber

2
Thermostat

housing

3

Groove
E
T034

Fig
EF
39
Bi
metal

Setting

4

Check
automatic
choke
heater

source

wiring
for

proper
connection

then

start

engine

S
After

warming
up
the

engine
see

that
choke
valve
is

fully
open

6
If
automatic

choke
heater
source

wiring
is
normal
and
choke
valve
does

not

operate
after

warm

up
replace

bi

metal
cover

AUTOMATIC
CHOKE
RELAY

The
automatic
choke

relay
is

local

ed
in
the

relay
box

I
Remove
automatic
choke

relay

by

removing
two

securing
screws
Engine
Fuel

II

EF422A

Fig
EF
40
Location

of
Automatic

Choke

Relay

2
Check
the

continuity
of
the

relay

as
follows

In
normal

condition

continuity
be

tween

CV
and

@
should
exist

Then

apply
l2V

battery
voltage

across

CID
and

@
Under
this
condi

tion
contin

ity
between

CV
and

@

should

disappear

If

not
the

relay
is

faulty
replace
it

W
hWO

CID
CD

CV
o
0

@

Q
I

o
r
@

CID

@

EF989

Fig
EF

41
Checking
Automatic

Choke

Relay

AUTOMATIC
CHOKE

HEATER

I

Measure
resistance

of
choke

heater

Specified
resistance
is

3
7

to
8
9

ohms

EF
17
EF855

Fig
EF
42

Checking
Automatic

Choke
Heater

2
If

measured

value
is
not
within

the

specification
replace
bi
metal

cover

INTERLOCK
OPENING
OF

PRIMARY
AND
SECONDARY

THROTTLE
VALVES

1

Open
primary
side
throttle
valve

480
from

fully
closed

position
and

measure
clearance
G
1
between

throttle
valve
and

throttle
chamber

inside
wall
as
shown

in

Fig
EF
43

Clearance
6G1

5
83
mm
0
230
in

@

J
3

480

r
mit
GI

6

1

Connecting
rod

2

Secondary

connecting

lever

3
Throttle
lever

4

Secondary
throttle

valve

5

Primary
throttle
valve

6
Throttle
chamber

Fig
EF
43

Adjusting
Interlock

Opening
Primary
and

lecondary
throttle

values

2

Without

disturbing
above

setting

bend

connecting
rod

as
necessary
so

that
secondary
throttle
valve
is
about

to

open
E

F089A

Engine
Electrical

System

STARTING

MOTOR

STARTING
CIRCUIT

FUSIBLE
LINK
FUSE

lOA

INHIBITOR
SWITCH

LJ

J
IAfT

onlv
I
IGNITION

SWITCH

7
MIT
OnIY

STARTING

I
MOTOR

L
u

l

l

lJ
INHIBITOR
RELAY

IAfT
only
BATTERY

f

1J
INHIBITOR

RELAY

I

I
A
T

onlyl

I

B

l
I

BY
BY

VA

j
M
T

only

I
J

ti

FUSIBLE

LINK

On
IGNITION

SWITCH

BATTERY
YR

L

L

YR
tl

WR

FUSE
BLOCK

c
J

GO

c
J
C
lOA

S
L

BY

p
BL

STARTING

MOTOR

INHIBITOR

SWITCH

IAIT

only

EE741

Fig
EE
5
Circuit

Liagrom
of
Starting
System

EE4

FUSIBLE
LINK

FUSIBLE
LINK

f
BATTERY

@@

V

R

@@

G
G

FUSleLE

ImrnI
LI
NK

MTI

I
En

g
n
l
Electrical

Syst
lOl

IGNITION

SWITCH
FUSE

lOA

o
v

FUSE

lOA

C
V

L@@

BAT

f
L

S

BI

I

I

sl
fRO

L

I

I

F

I

EI

i
K
a

ALTERNATOR

lE
Ie

VOLTAGE

REGULATOR

I
I

L
WR

I
1

d

I

t
J

t
IGNITION

WR
SWITCH

BW

U
0

AUTO

CHOKE

RELAY
G
1

WR

J
I

00

00

gg
1

00

VR

1

E
lDID
I

@
O

BAT
mID

W

J
WR

W
FUSE

BLOCK

CHARGE

WARNING

LAMP

5J

BL

Note

@

V

@
California
models

Non
Qilifomo
18
models

FU
models

Fig
EE
29
Circuit
Dinrswr
EE742

mofCIuJ

Tg
ng
Sy
t
m

EE
12

DESCRIPTION

The

regulator
consists

essentially
of

in

egrated
circuits

incorporating
tran

sistors

These
transistors
int

errupt
and

admit

current
flow

to
the
alternator

rotor

coil
thus

maintaining
its

output

voltage
at
a
constant
value
Unlike
in
a

mechanical

type
regulator
an
electron

ic

relay
employing
transistors
is
uti

lized
These
transistors

are
enclosed
in

a

very
compact
sealed

case
The

electronic

relay
is

soldered
to
the

Brush

Ie

regulator

R

J

DIO

F

i
ZD

Tn
Engipe
Electrjcal
Syst
em

REGULATOR

brush

assembly
inside
the

alternator

Should

any

problem
with
the

relay

arise
it

should
be

replaced
together

with
the

brush

assembly
In
the

charge

warning
lamp
circuit
a
diode
is
at

tached
to
the
stator
coil
to

monitor

generating
voltage
at
the
stator

so
that

when
the

monitored

voltage
and

charging
voltage
are

equal
during
re

charging
the

charge

warning
lamp
is

turned
off

Accordingly
a

charge

warning
relay
is

not

employed
in

this

circuit

s

r
t

E

F
L
S
B

EE629

Fig
EE
51
lC

Voltage
RegultJtor

I

B

S

L

I

R

R

E
B
S
L

E
F
Terminal

R
Resistor

Rh
Thermistor

Tr
Transistor

ZD
Zener
diode

EE766

Fig
EE
52

Circuit
of
RegultJtor

EE
18
INSPECTION

To

check
the

IC

regulator
proceed

as
follows

Remove
IC

regulator
and

brushes
as

an

assembly
as
outlined
in

Disas

sembly
and

Assembly
section
under

the

heading
Alternator

CAUTION

When

performing
test

continuously

resistor

may
generate
heat
If

it
be

comes

high
temperature
stop
testing

for
a

while
to
avoid

burning

The

following
test

equipment
and

accessories
are

required

I
Resistor
R
10

ohms
20

watts
x
I

2

Variable
resistor

Rv
0
to
300

ohms
20
watts
x
I

3

Batteries
I

and
2
12

volts

x2

4
DC

voltmeter
0
to
30
volts

x
I

2
Connect

wiring
as
shown
in

Fig

EE
S3
and

perform
tests
as
follows

I

Measure

voltage

VI
at

battery
If

it
is

not
within

10
to
13

volts
re

charge
or

replace
battery
as

necessary

2
Disconnect
lead
wire

at
terminal

s

measure

voltage
V

2
between

terminals
F

and
E
If
it
is

below

2
0
volts

regulator
is

functioning

properly
Connect

lead
wire

to
termi

nalS

3

Measure

voltage
V

3
total
volt

age
of

batteries
I

and
2

If
it

is
not

within

20
to
26
volts
re

charge
or

replace
either
or

both
batteries

4

Gradually
decrease
resistance
of

variable
resistor

Rv
from
300
ohms

and
measure

voltage
V

2
between

terminals
En
and
F
As
resistance

DATSUN
210
Model
8310
Series

SECTIONBE

BODY
ELECTRICAL
SYSTEM

CONTENTS

BODY
ELECTRICAL
WIRING

DESCRIPTION

FUSE
AND
FUSIBLE
LINK

WIRING

WIRING
HARNESS

LOCATION
OF
ELECTRICAL
UNIT

ELECTRICAL
UNIT
OF

LIGHTING
SYSTEM

BULB
SPECIFICATIONS

REMOVAL
AND
INSTALLATION

For

lamp

IGNITION
SWITCH

COMBINATION
SWITCH

ILLUMINATION
CONTROL
UNIT

AIMING
ADJUSTMENT

ELECTRICAL
UNIT
OF

SIGNAL
SYSTEM
BE
12

TURN
SIGNAL
SWITCH
BE
12

HORN
RELAY
BE
12

HAZARD
SWITCH
BE
12

STOP
LAMP
SWITCH
BE
12

BACK
UP
LAMP
SWITCH
BE
12

DOOR
SWITCH
BE
12

METERS
AND
GAUGES
BE
13

COMBINATION
METER
BE
13

TACHOMETER
BE
14

FUEL
LEVEL
AND
WATER
TEMPERATURE

INDICATOR

SYSTEM
BE
14

WARNING
SYSTEM
BE
15

CHARGE
WARNING
SYSTEM
BE
15

BRAKE
WARNING
SYSTEM
BE
15
BE
2

BE
2

BE
2

BE
4

BE
5

BE
8

BE
9

BE
9

BE
10

BE
10

BE
10

BE
11

BE
11
OIL
PRESSURE
WARNING
SYSTEM

SEAT
BELT
WARNING
SYSTEM

ELECTRICAL
ACCESSORIES

WINDSHIELD

WIPER
AND
WASHER

REAR
WINDOW
WIPER

AND
WASHER

CIGARETTE
LIGHTER

RADIO

CLOCK

REAR
WINDOW
DEFOGGER

STARTING
SYSTEM
For
automatic

transmission
models

HEATER

DESCRIPTION

AIR
FLOW

REMOVAL
AND
INSTALLATION

ADJUSTING
HEATER
CONTROL

DISASSEMBLY
AND
ASSEMBLY
OF

HEATER
UNIT

INSPECTION

WIRING
DIAGRAMS
AND

TROUBLE
DIAGNOSES

ELECTRICAL
SYSTEM
BLOCK

DIAGRAM

FUSE
BLOCK
CIRCUIT

SUPPLY

ROUTING

LIGHTING
SYSTEM

SIGNAL
SYSTEM

METERS
AND
GAUGES

WARNING

SYSTEM

ELECTRICAL
ACCESSORY
SYSTEM

HEATER
BE
15

BE
15

BE
17

BE
17

BE
18

BE
20

BE
20

BE
21

BE
21

BE
23

BE
23

BE
23

BE
24

BE
26

BE
27

BE
27

BE
28

BE
29

BE
29

BE
30

BE
31

BE

36

BE
41

BE
44

BE
4B

BE
55

m
c
n
to
l
l

I
g
iF
0
1
To
side
marker
lamp
L
H

2
To
headlamp
L
H

3
To
horn
L
H

4
To
front
combination
lamp
L
H

5
To
cooler
co
pressor
Air
Con
models

6
To
oil
pressure
switch

7
To
condenser

8
To
horn
R
H

9
To
front
combination
la
t11p
R
H

10
To
side
marker
lamp
R
H

11
To
headlamp
R
H

12
To
body
earth

13
To
fusible
link

14
To
inhibitor
relay
AfT
model

15
To
aut6
choke
relay

16
To
ignition
coil

17
To
condenser

18
To
washer
motor

19
To
engine
harness
No
2
@

20
To
alternator

21
To
starting
motor

22
To
throttle
opener
solenoid
Except
FU
models

23
To
fuel
cut
solenoid
Except
FU
models

24
To
throttle
switch
FU
models

25
To
fuel
cut
solenoid
FU
models

26
To
auto
choke

27
To
VC
cut
solenoid
M
T
and
Calif
AfT
models

28
To
distributor

29
To
thermal
transmitter

30
To
body
harness

31
To
low
pressure
switcn
Air
Con
models

32
To
rear
window
washer
motor

33
To
FICO
solenoid
Air
Con
models

34
To
room
lamp
harness

35
To
cooling
unit
Air
C
on
models

36
To
heater
motor
37
To
engine
revolution
switch
FU
models

38
To
rear
wiper
switch

39
To
wiper
motor

40
To
brake
level
switch

41
To
belt
timer

42
To
horn
relay

43
To
stop
lamp
switch

44
To
kickdown
switch
AfT
model

45
To
hazard
flasher
unit

46
To
turn
signal
flasher
unit

47
To
ignition
switch

48
To
steering
lock

49
To
wiper
switch

50
To
turn
signal
and
hC
rn
switch

51
To
lighting
switch

5i
To
hazard
switch

53
To
belt
switch

54
To
door
switch
L
H

55
To
hand
brake
switch

56
To
automatic
transmission
control
indicator

AfT
models

57
To
instrument
harness

58
To
check
connector
I
0
i
a

z
Z
G
z

tIl
tIl
a
Z
Il
I
to

o
Co
m
16

n
n
OJ
1
3

BodyElecti
ical
System

LOCATiON
OF
ELECTRICAL
UNIT

@

Q
J
r

J

D

t

Inhibitor
relay

AfT

2
Auto
chok
e

relay

3
Buzzer

4

Door
switch
RlI

5

Turn
signal
flasher

6
Hazard
flasher
7
Door
switch
L
H

8
Horn
relaY

9

Seat
belt
timer
unit

10

Stop
lamp
switch

11
Kickdown
switch
Am

BEl17D

Fig
BE
8
Locotiono
Ekctricol
Unit

BE

S