1979 DATSUN 210 fuel type

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

EF053A

Fig
EF

50

Removing
JWrneu

of

Solenoid
valve

2

Connect
rubber
hose

between

vacuum

gauge
and
intake
manifold

Note
A

quick
response
type
boost

gauge
such

as
Bourdon
s

type
is

recommended
a

mercury
type

manometer
should
not
be

used

3
Warm

up
engine
until
it

reaches

operating

temperature
Then

confirm

that

engine
idling

speed
is

specified

valve

Engine

idling
speed

Manual

transmission

700

rpm
Engine
Fuel

Automatic
transmission

in
0

position

650rpm

Note

On
automatic

transmission

models
never

race

engine
when

gearshift
lever

is
in
0

position

4
Run

engine
under
no

load
In

crease

engine
speed
to
3

000

to
3
500

rpm
then

quickly
close
throttle
valve

S
At
the
time
manifold

vacuum

pressure
increases

abruptly
to

600

rnmHg
23
6

inHg
or
above
and

then

gradually
decreases
to
the
level

set
at

idling

a

Maximum

negative
pressure

b

Operating
pressure

c

Idling
pressure

Nega
ive

pressure

EC502

Time

Fig
EF

52
Characteristic
Curve

of

T
O
C
S

6
Check
that
the
T

O
C
s

operating

pressure
is

within
the

specified
pres

sure

Specified

pressure
0
m

sea
level

end
760

mmHg
30

inHgl
atmOs

pheric
pressure

Non
Califomia

models

520
20

mmHg

20
47
0
79

inHg

California
models

560
20

mmHg

22
05

9
79

inHgl

7

I

If
it
is
lower

than
the

specified

level

turn
the

adjusting
screw
or

nut

in
the

following
direction

until
correct

adjustment
is

made

Adjusting
nut

Clockwise

2
If
it
is

higher
than
the

specified

levei
turn
the

adjusting
screw
or

nut

in
the

following
direction
until
correct

adjustment
is

made

EF
20
Adjusting
nut

Counterclockwise

Note

When

adjusting
T

O
C
S
turn

adjusting
nut
in
or
out
with
lock

spring
in

place
Always
set
lock

spring
properly
to

prevent
changes

in

set

pressure

Vo

1

Adjusting
nut

2
Lock

spring

n

EC802

EF055A

Fig
EF
53

Adjusting
Ope
llting

Pre
3ure

Note
The

operating

pressure
varies
in

proportion
to
altitude

a
When

atmospheric

pressure
is

known

operating
pressure
will
be

found

by
tracing
the

arrow
line

A
When

altitude
is

known

op

erating

pressure
will
be

found

by

tracing
the

arrow
line

B

b

When

checking
T

O

C
S

operating

pressure
note

atmospheric
pressure

and
above
sea

level
in
which

check

Engine
Fuel

SERVICE
DATA
AND

SPECIFICATIONS

GENERAL

SPECIFICATIONS

CARBURETOR

California
models

Non
caJ
ifornia
model

Manual
tranlDlWion

Automatic
transmission

Manual
transmission
FU
model

utomatic
transmission

Type
DCH306
6t
DCH306
63
DCH306
60E

DCH306
67
DCH306
68
3

DCH306
69
1
DCH306
60
2

DCH306
12
4

Primary
Secondary

Primary
Secondary
Primuy
Secondary
Primary

Secondary
Primary
Secondary

Outer

diameter

26
1
02
30
1
18

26
1

02
30
1
18

26
1

02
30
1
18
26
1

02
30
1
18
26
1

02
30
1
18

mm
in

Venturi
diameter

23

0
9t
27
1
06
23

0
91
27
1
06
23
0
91
27
1
06
22

0
87
27
1
06
23
0
91
27
1
06

mm

in

Main

jet
107
145
107

1145
106

145

1107
145
105

1145

104
2
t04
4

Main
air
bleed

95

180
95

180
1110
80
65

1M
195
80

Slow

jet
1145
150
145
150
145
150
146

150
45

150

Powerjet

143
43

140
148
2

48
138
140
4

1
With
A15

engine

2
4
For
Canada

models

3
Common

to
models
with
A14
and

AlS
engines
except
Canada

INSPECTION

AND

ADJUSTMENT

A
T
C
AIR

CLEANER

Air

con
trol
valve

partially

opens

Air
control
valve

fully
opens
Oc
OF

Oc
F
38
to
54

100
to
129

Above
55
131

IDLE

COMPENSATOR

Idle

compensator
partially

opens

Bi
metal
No
I

Bi

metal
No
2

Idle

compensator
fully

opens

Bi
metal
No
I

Bi
metal
No
2
Oc
OF

60
to
70

140
to

158

70
to
80
158
to
176

Oc
OF

Above

70

158

Above

80

176

FUEL

PUMP

Fuel

pressure

Fuel

pump

capacity
kgfcm2

psi

cc

cu
in
min

at

rpm
0
27
3

8

450
27

46
1

000

EF

32

Emission
Control

System

EXHAUST
EMISSION
CONTROL
SYSTEM

DESCRIPTION

The
exhaust
emission
control

system
is
made

up
of

the

following

components

Early
fuel

evaporative
system
E

F
E

Air

injection
system

Air

induction

system

E

G
R

system

Spark

tirningcontrol
system

M
T

model

Spark
timing
control

system

A
T

model

Catalyst
Non
California

California

models
models

except
CanadaY
FU
model

Manifold

stove

Heat
valve

Air

pump

C
A
C
valve

A
B
valve

Check
valve
Air

pump

Air

relief
valve

A
B

valve

Check
valve

E
G
R

control
valve

Thermal
vacuum
valve
3

port
type

B

P
T
valve

Vacuum

switching
valve

Top
switch

Thermal

vacuum
valve
3

port

type

Vacuum

delay
valve

Non
California

models

only

Vacuum

switching

valve

Top
switch

Thermal
vacuum

valve
3

port

type
Vacuum
delay

valve

Thermal
vacuum

valve
3

port
type

Catalytic

converter

EC
7
Canada
models

Air
induction
valve

A
B
valve

E

G
R
control

valve

Thermal
vacuum

valve
2

port

type

B
P

T
valve
E

G
R
control

valve

Thermal
vacuum

valve
2

port

type

Vacuum

switching
valve

Top
switch

Catalytic

converter
Vacuum

delay

valve

INSPECTION

I

Disconnect

high
tension

cables

from

spark
plugs
by
pulling
on

boot

not
on
cable
itself

2

Remove

spark

plugs

3

Check
electrodes
and
inner

and

outer

porcelains
of

plugs
noting
the

type
of

deposits
and
the

degree
of

electrode
erosion

Refer
to

Fig
EE

76

Normal
Brown

to

grayish
Ian
de

posits
and

slighl
electrode
wear

indicate
correct

spark

plug
heat

range

Carbon
fouled

Dry
fluffy
carbon
de

posits
on
the
insulator
and
elec

trode
are

mostly
caused

by
slow

speed
driving
in

city
weak

ignition

too
rich
fuel
mixture

dirty
air

cleaner
etc

H
is
advisable
to

replace
with

plugs

having
hotter
heat

range

Oil
fouled

Wet
black

deposits
show

excessive

oil
entrance
into

comb
us

tion
chamber

through
worn

rings

and

pistons
or
excessive

clearance

between
valve

guides
and
stems
If

the
same
condition
remains
after

repair
use
a
hotter

plug

Overheating
White
or

light
gray
insu

lator
with
black
or

gray
brown

spots
and
bluish
burnt
electrodes

indicate

engine
overheating
More

over
the

appearance
results
from

incorrect

ignition
timing
loose

spark
plugs
low
fuel

pump
pres

sure

wrong
selection
of
fuel

a

hotter

range
plug
etc

H
is
advisable
to

replace
with

plugs

having
colder
heat

range

4
After

cleaning
dress
electrodes

with
a
smaU
fme
file
to
flatten
the

surfaces
of
both

center
and
side
elec

trodes
in

parallel
Set

spark
plug

gap
to

specification

5

Install

spark

plugs
and

torque

each

plug

6
Connect

spark
plug
wires

CLEANING

AND

REGAP

Clean

spark
plugs
in
a
sand
blast
Engine
Electrical

System

SPARK

PLUG

Conventional

type

Normal

Overheating

Multi

gap
type

Nonnal

Overheating

type
cleaner
Avoid
excessive

blasting

Clean
and
remove
carbon
or
oxide

deposits
but
do
not
wear

away
porce

lain
If

deposits
are
too
stubborn

discard

plugs

After

cleaning
spark

plugs
renew

firing
surface
of
electrodes
with
file

mentioned

above
Then
check

spark

plug
gap
with
wire

feeler

gauge
All

spark
plugs
new
or
used

should
have

the

gap
checked
and
reset

by
bending

ground
electrode

EEOSO

Fig
EE
77
Setting
Spark
Plug
Gap

Except
FU
model

EE
29
Carbon

fouled

EE079

Worn

Carbon

fouled

Worn

EE601

Fig
EE

76

Spark

Plug

EE586

Fig
EE
78

Setting
Spark
Plug

Gap
FU
models

Front
Axle
Front

Suspension

SERVICE
DATA
AND
SPECIFICATIONS

GENERAL
SPECIFICATIONS

COIL

SPRING

Models

equipped
with
air

conditioning
Models
not

equipped
with

air

conditioning

10
5
x
100
x

375

0
413
x
3
94
x
1476

1
62
90
7

Spring
constant
kg
mm

Ib
in
10
8
x

100
x

375

0
425
x
3
94
x
1476

1
65
92
4
Dimension
A
x

C
x

L

AxCxL

Wire
diameter
mm

in
x

Coil
diameter
mm
in
x
Free

length
mm
in

STRUT
ASSEMBLY

Shock
absorber
type

Piston

rod
diameter
mm

in

Piston
diameter
mm
in

Stroke
nun
in

Damping
force
at
0
3
m
1
0
ft
sec

Expansion
kg
Ib

Compression
kg
Ib
Double

acting
hydraulic

20
0
79

30
1
18

164
6
46

30
to
40
66
to
88

17
to
23
37
to

51

STABILIZER
BAR

Bar
diameter

Identification
mark
mm

in
20
0
79

Red

INSPECTION
AND
ADJUSTMENT

WHEEL
ALIGNMENT
Unladen
1

Kingpin
inclination

Turning

angle
of
front
wheel

Inside

Outside
mm
in

degree

degree
0
to
1030

j040
to
3010

1055
t9
3025
2

I
to

3
0
04
to
0

12

6
30
to

13

70
SO
to
9020
Camber

Caster
degree

degree

Toe
in

degree

degree
380
to
420

31
io
to
35
i0

I
Tankful
of
fuel
radiator
coolant
and

engine
oil

Spare
tire

jack
hand
tool
and
mats
in

designed
position

2
For

Wagon
only

FA
13

Engine
Control
Fuel
Exhaust

Systems

REMOVAL

WARNING

When

replacing
fuel
line

parts
be

sure
to
observe
the

following

a
Put
a
CAUTION
INFLAM

MABLE

sign
in

workshop

b
Be

sure
to
furnish

workshop

with
In

asphyxiator

c
Be
sure
to
disconnect

battery

ground
cable
before

conducting

operations

d
Put
drained
fuel
in
an

explosion

proof
container
and

put
on
lid

securely

FUEL
TANK

Sedan

I

Disconnect
battery
ground
cable

2
Drain
fuel
from
fuel
tank

then

disconnect
fuel
hose

3
Remove

filler
hose

protector

and

inspection
cover
in

luggage
com

i
tl

f

I

Filler
hose

protector

2

Inspection
cover

FE561

Fig
FE
4

Removing
Filler
Hose

Protector
and
Inspection

Cover

4
Disconnect
fuel
filler
hose

vent

hoses
and
fuel
tank

gauge
unit
wire

connector

I

JI

I

2
FE562

3

Fig
FE

5
Di

connecting
Ho
e
and

Connector
5
Remove
fuel
tank

protector

6
Remove
fuel
tank

Hatchback
and

Wagon

I
Disconnect

battery

ground
cable

2
Drain

fuel
from
fuel
tank

then

disconnect
fuel
hose

3

Remove

luggage
carpet
luggage

board

inspection

covef
and
side
finish

er

4
Disconnect
fuel
filler
hose

vent

hoses
and
fuel
tank

gauge
unit
wire

connector
See

Fig
FE

5

5
Remove

fuel
tank

protector

6
Remove
fuel
tank

FUEL
TANK
GAUGE
UNIT

Sedan

1
Remove

inspection
cover
in

lug

gage
compartment
See

Fig
FE
3

2

Disconnect
fuel
tank

gauge
unit

wire
connector

3
Remove
fuel
tank

gauge
unit

Hatchback
and

Wagon

I
Remove

luggage
carpet
luggage

board
and

inspection
cover

2

Disconnect
fuel
tank

gauge
unit

wire

connector

3
Remove
fuel
tank

gauge
unit

CHECK
VALVE

Sedan

I
Remove

inspection
cover
and
fuel

filler
hose

protector
in

luggage
com

partment

2
Remove
check
valve

Hatchback

I
Remove

luggage
carpet
luggage

board
and

luggage
side
finisher

2
Remove
check
valve

Wagon

I
Remove

rear
side
finisher
in

luggage
compartment

2
Remove
check
valve

FE
5
FUEL
TUBE

Fuel
tubes
are
serviced

as
an
assem

bly
so
that
the

replacement
of
fuel

tube

can
be

easily
done
However

do

not
disconnect

any
fuel
line
unless

absolutely
necessary

Drain

fuel
from
fuel
tank

2

Loosen
fuel
hose

clamps
and
dis

connect
fuel
tube

at
each
end

Note

Plug
hose
and
tube

openings
to

prevent
entry
of
dust
or
dirt
while

removing

3
Unfasten

clips
that

hold
tube
on

underbody
and

remove
tube

from
the

car

FUEL

FILTER

I
Disconnect
fuel
hoses
from
fuel

filter

by

removing
clamps

2

Take
out
fuel
strainer
and
discard

it

INSPECTION

FUEL
TANK

Check
fuel
tank
for

cracks
or
defor

mation

If

necessary
replace

FUEL
HOSE

Inspect
all
hoses
for
cracks

fatigue

sweating
or
deterioration

Replace
any
hose
that
is

damaged

FUEL
TUBE

Replace
any
fuel
tube
that

is
crack

ed
rusted

collapsed
or
deformed

FUEL
FILTER

Replace
fuel
filter
at
the

specified

maintenance
interval
or

if
it

becomes

clogged
or
restricted

Fuel
filter
is
of
a

cartridge
type
and

cannot
be
cleaned

Always
replace

with

a
new
one

CHECK
VALVE

1
Blow
air

through
connector

on

fuel
tank
side

A
considerable
resistance
should
be

felt
at
the
mouth
and
a

portion
of
air

C

E3J
i

I

u
r
o
alNATIO

1
9

fl
l
w

tif
S
lATr

u
N
T
i
0

lf
5f
lAH

8
g
llOOY
AIITI

0

BI

b
RWIPER

IoOODELS

a
RW

LUGGAGf
aD
B

iO
b
n
rNr
lAMP

1
FUSE

1

AIR

CONDnION
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