DATSUN 210 1979 Service Manual

EC173A

Fig
EC

95

Disconnecting
Vacuum

Switching
Valve
Connector

3

Apply
parking
brake
and

keep

brake

pedal
fully

depressed

4

Check

continuity
between
two

specified
terminals
ai

function
test

connector
with

gearshift
lever
in
R

or
N

position

The

top
detecting
switch
is

func

tioning
properly
if
the

continuity
is

as

following
table

If
not

replace
the
switch

N

position
No

R

position
Yes

Note
At

idling

CAUTION

Never

race
the

engine
or
car
will

creep

r

q

EC329A

Fig
EC
96

Checking
Top

Detecting

Switch

Arr
model
Emission
Control

System

Entire

system

Non
California
AfT
models

except
Canada

1

Ensure
that
vacuum

hoses
are

properly
connected
to

their

positions

And

confirm
that

gearshift
lever
is
in

P

position

2
Disconnect

vacuum
hose
atdis

tributor

vacuum
controller

3

While

engine
cooling
wat
r

is
be

low
SOoC

1220F
race

engine
and

check
vacuum
for
distributor
If
vacu

um
is
felt
check

thermal
vacuum
valve

3

port
type

4

After

engine
is

sufficiently

warmed

up
repeat
the
above

opera

tion

In

this
case
vacuum
should
be
felt

If
not
check
thermal

vacuum
valve

Vacuu
m

switching
valve

If

spark
timing
does
not

vary
at
all

in

checking
entire

system
check
vacu

um

switching
valve
i
follows

I
Warm

up
engine

sufficiently

2

Disconnect

vacuum

switching

valve

lead
wires

3

Set

timing
light
and

keep
engine

speed
at

approximately
1

600

rpm
On

AfT
models

geaishiftlever
should

be

in

N
or
P

4

Apply
l2V

battery
voltage
to

one
of
two

lead
wires

from
vacuum

switching
valve
Then
connect
the

other
lead
wire

to

ground

At

this
time

spark
timing
should

change

appioximately
by
50

If
it
does
not

replace
vacuum

switching
valve

EC175A

Fig
EC

97

Checking
Vacuum

Switching
Valv

Thermal
vacuum
valve

3
port

type
U
s
A
models

except
FU

model

Remove

thermal
vacuum

valve
from

engine
Inhale
air
from

port
of

spark

EC32
timing
amttol

systetn
andcheck
to

sure
that

thermal
vacuum
valve

opens

or
closes
in

response
to
its

tempera

ture

Thermal

vacuum
walye

closing

temperature

Above
50
to

63
c

122
to
1450
F

Below
5
to

1SoC

41
to

64
Fl

J

EC161A

Fig
EC
98

Checking
Thermal

Vacuum

Valv

CAUTION

Do

not
allow

water
to

get
inside

the

thenna

vacuum
valve

Top
detecting
switch

M
T
models

To

check

top
detecting
switch
for

proper
ON
OFF

operation
contact

leads
of

an
ohmmeter

with
swiich

lead

wires
and
shift
transmiosion

from

TOP
to
other
forward

gear
and

vice

versa
If

switch
does
not

operate
prop

erly
replace

Continuity
of

top
detecting
switch

should
be

a
follows

Other
than

4th
and
5th
No

4th

and
5th

Yes

Note
In

checking

continuity
oCthe

switch

keep
the

ignition
switch

OFF
Otherwise
the

circuit
tester

will

get

damaged

e

In
o

L

1

Ignition
switch

2
Vacuum
switching

v3
lve

3

Top
detecting
switch

4
Function
check
connector

EC330A

i

Fig
EC
99

Checking
Top
Detecting

l

Switch

Vacuum

dela
valve

Remove
vacUum

delay
valve

2

Blow
air
from
th

port
of

the

distributor
side
The
vacuum

delay

valve
is
in

go
ij
condition
if
the
air

flows

through
the
valve

3

Try

again
from
the
opposit

side

of
the
valve
Th
valve
is
in

goo

condition
if
th
a
flow
resistance
is

greater
than

the

step
2
abov

Distributor
side

Carburetor
side

Distribu
tor
side

Carburetor
side

EC346

Fig
EC
100

Checking
Vocuum

Dewy
Valve
Emission

Control

Syst
m

4

If
the
condition
of

spark
delay

valve
is

questionable
dip
port
into

a

cup
filled
with
water
Blow
air
from

brown
face
side
Small
air
bubbles

should

appear

CAUTION

Be
c
areful
to
avoid

entry
of
oil
or
dirt

into
valve

7

E
C279

Fig
EC
101

Checking
Vacuum

D

lDy
Valve

CATALYTIC

CONVERTER

California
dels

DESCRIPTION

1

The

catalytic
converter

accelerates

the

chemical
reaction
of

hydrocarbons

CD
0
He
and

carbon
monoxide
O
in

the
exhaust

gas
and

changes
them
into

non
harmful

carbon
dioxide

C02

and
water

H20
This
chemical

reac

tiOD

process
requires
the

proper
a

mount
of
air
which
is

supplied
by
the

air

pump
Refer
to
the
item
AJ

S

This
air
is
called

secondary
air

The

Catalytic
converter
is
mounted

0

the
models
destinbd
for
California

OPERATION

Exhaust

gas
emitted

from
the
en

gine
contains

some
harmful
substances

due
to

incomplete
combustion
in

the

combustion
chamber
The
air

injection

stem
i

designed
to
reduce
the

con

tent
of

such
substances
in

the
exhaust

gas
In
this

system
the

secondary
air

is

led
from
the
ch
ck
valve
and

injected

in
o
the

exhaust
manifold
With
this

injection
of

the

secondary
air

hydro

carbons

He
and
carbon
monoxide

CO
in
the

exhaust

gas
are
gradually

oxidized
with

oxygen

02
in
the

secondary
air

and
converted
into
nOD

harmful
carbon
dioxide

C02
and

water

HP

The

catalytic
converter
further

cleans

engine
exhaust

gas
Through

catalytic
action
it

changes
residual

hydrocarbons
and

carbon
monoxide

contained
in

exhaust

gas
into

carbon

dioxide
and
water
before
exhaust

gas

is

discharged
to
the

atmosphere

0

Secondary
air

Carbon
monoxide

hydrocarbon

Carbon
dioxide

gas

Nater

EC

i

A

I
Front
tube

2

Catalytic
converter

3
Center
tube

4
Main
murner

EC
33
EC215

Fig
EC

I02
Function
of

Catalytic
Converter

REMOVAL

AND

INSTALLATION

I

Jack

up
the

car

Note

Apply
parking
brake
and

place
wheel

chocks

2
Remove

screws

securing
lower

shelter
of

catalytic
converter

Loosen

flange
bolt

connecting

catalytic
converter
to

front
and

rear

exhaust
tube

Catalytic
converter

assembly
can

then
be
taken
out

3

Installation
i
in
the

reverse
se

quence
of
removal

CAUTION

a
Be

careful
not
to

damage
catalytic

co
when

handliilg

b
Never
wet

catalyzer
with
water
oil

etc

t
J

Tightening
torque

Catalyti
converter
bolts

2
6
to
3
4

kg
m

19
to
25
ft
lb
Emission
Control

System

EC075A

EC076A

Fig
EC
103

Removing
Catalytic

Converter

INSPECTION

PrelimInary
In
pectlon

Vi

ually
check
condition
of
all

component

parts
including
hose

tubes
and
wires

replace
if

necessary

Refer
to
Air

Injection

System
for

inspection

EC
34
Catalytic
converter

Whether

catalytic
converter
is

nor

mal
or
not
can
e

checked

by
ob

serving
variation
in
CO

percentage

The
checking

procedure
is

as
follows

Apply
parking
brake
Shift

gears

into

Neutral
for
manual
transmis

sion

and
N
or

P
for

automatic

transmission

position

I

Adjust
engine
idling

speed
and

CO

percentage
Refer
to

Adjusting

Carburetor
Idle
RPM
and

Mixture

Ratio
for

adjustment

2
Race

engine
1
500

to
2
000

rpm

two
or

three
times

under
no
load
and

make
sure

that

specified
CO

percent

age
obtained

3
Remove

cap
and
connect

air
hose

to
air

check
valve

If

idling
speed
increases

readjust

it
to

specified
speed
with
throttle

adjusting
screw

4

Warm

up
engine
for
about
four

minutes

at
2
000

pm
under
no
load

S

Measure

Ci
percentage
at

idling

speed
After

stepAhas
been

complet

ed
wait
for

one
minute
before

making

CO

percentage
measurement

6
If
CO

percentage
measured
in

step
5
is

less
than
0
3
the

catalytic

converter

is
normaL

7

If
CO

percentage
measured
in

step
5
is

over
0
3
recheck
AJ
S
and

1

replace
air
check
valVe

The
perform

inspection
steps
4

and
S

8

If
CO

percentage
is

still
over
0
3

in

step
7

catalyt
iC

converter
i

mal

functioning
Replace
catalytic
con

verter

Emission
Control

System

EvApORATIVE

EMISSION
CONTROL
SYSTEM

DESCRIPTION
carbons
is

accomplished
by
activated

charcoals
in

the

C
Ibon
canister

This

system
is
made

up
of
the

foUo

ing
I

I
Fuel
tank
with

positive
sealing

filler

cap
The

evaporative
emission

control

system
is

used
to
reduce

hydrocarbons

emitted
to
the

atmosphere
from
the

fuel

system
This
reduction
of

hydro

6
C

2
Fuel
check
valve

3

Vapor
vent
line

4

Carbon
canister

I

5

Vacuum

ignalline

6

Canister

purge
line

5

1
Fuel
tank

2
Fuel
filler

cap
with

vacuum

relief
valve

3
Fuel
check
valve

4

Vapor
vent
line

5
Canister

purge
line

6
Vacuum

signal
line

7
Carbon
canister

EC327
A

Fig
EC
104

Evaporative
Emission
Control

System
for

Sed
n

EC
35
t

OPERATION

Fuel

vapors
from

the
sealed
fuel

tank
are
led
into
the
carbon
canister

The
canister

is
filled
with
activated

charcoals
to
absorb
the
fuel

vapors

when
the

engine
is

at
rest
or
at

idling

t

Fuel
tank

2

Fuel
filler

cap
with

vacuum

re1ief
va1ve

3
Fuel
check
vslve

4

Vapor
t
line

5
Vacuum

signal
line

6
Canister

purge
line
Emission
Control

System

As

the
throttle
Valve

opens
and
car

speed
increases
vacuum

pressure
in

the
vacuum

signajline
forces
the

purge

control

valve
to

open
and
admits
an

orifice
to

intake
manifold
and
fuel

vapor
is

then
drawn
into
the
intake

manifold

through
the
canister

purge

line

Fuel
vapor

7
Throttle
valve
IZ
Filter

8

Engine
13

Purge
control
valve

9
Carbon

cani5t
14

DiaphraP
spring

10
Activated
carbon
IS

Diaphngm

II
Screen
16
Fixed
orifice

EC785

Fig
EC
JOS

Evaporative
Emiuion
Control

System

Fuel

vapor
flow
when
ngine
is
at
rest
or

running

REMOVAL

AND

INSTALLAtiON

CARBON
CANISTER
FILTER

Check
for
a

contantinated

element

Elemenl
can
be
removed
at
the

bottom
of
canister

installed
on

car

body

EF201

Fig
EC
I06

Replacing
Carbon

Canilttr
Filter
CHECK
VALVE

The
check
valve
is

located
behind
the

luggage
compartment
board
on
the

fuel
tank

Remove

the

luggage

compartment

board
and
disconnect

the

vapor
tube

The
check

valve
can
then
be

taken

out

EC315A

Fig
EC
I07

Removing
Check

Volve

EC
36
INSPECTION

FUEL
TANK

AND

VAPOR
VENT
LINE

1

Check
all
hoses
and
fuel
tank

filler

cap

2

Disconnect
the

vapor
vent
line

connecting
carbon
canister
to

check

valve

3
Connect
a
3
w

y
connector

a

manometer
and
a

cock
or
an

equi

valent
3

way
charge
cock
to
the
end

of
the
vent
line

EC183A

Fig
EC
IOB

Vent
Line

4

Supply
fresh
air
into
the

vapor

vent
line

through
the
cock
little

by

little
until

pressure
becomes
368

mmHZO
14
5

inHZO

S
Shut
the
cock

completely
and

leave
it

unattended

6
After
2
5
minutes
measure
the

height
of
the

liquid
in

the
manometer

7

Variation
in

height
should
remain

with
25

mmHZO
0
98

inH20

8
When
filler

cap
does
not
close

completely
the

height
should

drop
to

zero
in

a
short
time

9
If
the

height
does
not

drop
to

zero
in

a
short
time
when
ruler

cap
is

d
it
is

the
cause
of

a

stuffy

hose

Note

In
case
the
vent
line
is

stuffy

the

breathing
in
fuel
tank
is
not

thoroughly
IIIIIde
thus

causing
in

sufficient

delivery
of
feul
to

engine

or

vapor
lock
It

must
therefore
be

repaired
or

replaced

3
way
connector

ck

Air

@
Manometer

Carbon
canister
Emission
Control

System

400
mmH20
15
75

inH20

Check
valve

Fuel

filler
cap

r

EC091A

Fig
EC
I09

Checking
Evaporative
Emiuion
Control

Syatem

FUEL
CHECK
VALVE

I
Blow
air

through
connector
on

fuel
tank
side

A

considerable
resistance

should
be

felt
at
the
mouth
and
a

portion
of
air

flow
be
directed
toward
the

engine

2
Blow
air

through
connector
on

engine
side

Air
flow
should
be

smoothly
direct

ed
toward
fuel
tank

3
If
fuel
check
valve

is

suspected
of

not

being

properly
functioning
in

steps

I

and
2
above

replace

Engine
side
Fuel
tank

side

Q

Evaporative
fuel
flow

Fresh
air

flow

EC090A

Fig
EC
110

Checking
Fuel
Check

Valve
CARBON
CANISTER
PURGE

CONTROL
VALVE

Check
for
fuel

vapor
leakage
in
the

distributor

vacuum
line

at

diaphragm

of
carbon
canister

purge
control
valve

To
check
for

leakage

proceed
as

follows

I
Disconnect
rubber
hose
in
the

line
between
T

connector
and
carbon

canister
at
T
connector

2

Inhale
air
into

the

opening
of

rubber
hose

running
to
vacuum
hole
in

carbon
canister

and
ensure
that
there

is

no
leak

ET349

Fig
EC
lll

Checking
Carbon
Canister

Purge
Control
Valve

EC37
3
If
there
is
a
leak
remove

top

cover
from

purge
control
valve
and

check
for
dislocated
or
cracked
dia

phragm
If

necessary
replace
dia

phragrrt
kit
which
is
made

up
of
a

retainer

diaphragm
and

spring

i

ii

1
Cover

2

Diaphragm

3
Retainer

4

Diaphragm
spring

ET350

Fig
EC
112

Carbon
Canister

Purge

Control
Valve

FUEL
TANK
VACUUM

RELIEF
VALVE

Remove
fuel
filler

cap
and
see
it

functions

properly

I

Wipe
clean
valve

housing
and
have

it
in

your
mouth

2
Inhale
air
A

slight
resistance

ac

companied
by
valve
indicates
that

valve
is
in

good
mechanical
condition

Note
also
that

by
further
inhaling
air

the
resistance
should
be

disappeared

with
valve
clicks

3
If
valve
is

clogged
or
if

no
resist

ance
is

felt

replace
cap
as
an
assem

bled
unit

O

ET500

Fig
EC

1l3
Fuel
Filler

Cap

Emission

Control

System

SERVICE

DATA
AND

SPECIRCATIONS

INSPECTION

AND
ADJUSTMENT

AIR
PUMP

Air

pressure

With

engine
speed
at
2
600

pm
mrriHg
inHg
More
than
100
3
94

E
G
R
SYSTEM

Thermal
vacuum
valve

opening

temperature

U
S
A
models

except
FU

model

FU
and

Canada
models
Oc
OF

oC
F
SO
to
63
122
to
145

40
to
63
104

to
145

T
C
S

SYSTEM

Thermal
vacuum
valve

Except
Canada
and
FU
models

Closing

temperature
oC
F

Opening

temperature
OC

F
Above
SO
to

63

122
to
145

Below
5
to
18
41
to

64

5

to
18
and
SO
to

63

41
to

64
and
122
to
145

TIGHTENING

TORQUE

Air

pump

Bea

ring
cover

securing
bolt

Rotor

ring
screw

End
cover

bolt

Pulley
securing
bolt

Thermal
vacuum
valVe

BP
T
valve

mounting
sere

Top
detecting
switch

Catalytic
converter
bolt
kg
m

ft4b

kg
m

ft
lb

kg
m

ft
Ib

kg
m

ft
b

kg
m

ft
lb

kg
m
ft
Ib

kg
m

ft
Ib

kg
m
ft
lb
0
1
to

0
2
0

7
to
1
4

0
5
to

0
7
3

6
to
5
1

0
7
to
0
9
5
1

to
6
5

0

75
to
0

90
5
4
to
6
5

Less
than

2
2

16

0
38
to
0
51
2
7
to

3
7

2

0
to

3
0
14
to
22

2
6
to
3
4
19
to
25

EC
38

Emission
Control

System

SPECIAL
SERVICE
TOOLS

Kent

Moore
No
Kent
Moore
No

Tool
number
tool

name
Reference

page
or

Fig
No
Tool
number

tool
name
Reference

page
or

Fig
No

STl98l0000

Hexagon
wrench
STl9930000

Bearing

adapter

Fig
EC
31

Fig
EC
35

Fig
EC
42

@j

STl9900000

Dummy
shaft
126021
STl99
10000

Bearing
driver

Fig
EC
40

Fig
EC
35

Fig
EC
37

Fig
EC
38

STl9890000
Rotor

adapter
STl9920000
Rotor

stand

r
Fig
EC
34

CJ
Fig
EC

37

J
Fig
EC
36

Fig
EC
38

STl9940000

Bearing
pressing
tool
STl9870000
Air

pump
test

gauge
125667
01

adapter

Fig
EC
34
0

Page
EC
17

Fig
EC
36

EC
39

DATSUN

210
Model

8310
Series

SECTIONEE

ENGINE
ELECTRICAL
SYSTEM

CONTENTS

BATTERY

CHECKING
ELECTROLYTE
LEVEL

CHECKING

SPECIFIC
GRAVITY

CHARGING

INSTALLATION

STARTING
MOTOR

STARTING
CIRCUIT

CONSTRUCTION

REMOVAL
AND
INSTALLATION

DISASSEMBL
Y

CLEANING
AND
INSPECTION

ASSEMBL
Y

TEST

CHARGING

CIRCUIT

ALTERNATOR

DESCRIPTION

REMOVAL

DISASSEMBLY

INSPECTION
AND
REPAIR

ASSEMBLY

ALTERNATOR
TEST

REGULATOR

DESCRIPTION

INSPECTION

IGNITION

CIRCUIT
EE
2

EE
2

EE
2

EE
3

EE
3

EE
4

EE
4

EE
5

EE
6

EE
6

EE
6

EE
8

EE
8

EE
10

EE
13

EE

13

EE
14

EE
14

EE
14

EE
16

EE
17

EE
1B

EE
18

EE

18

EE

20
DESCRIPTION

DISTRIBUTOR

CONSTRUCTION

CHECKING
AND

ADJUSTMENT

I
ISASSEMBL
Y
AND
ASSEMBLY

IC
IGNITION
UNIT

DESCRIPTION

REMOVAL
AND

INSTALLATION

CHECKING
IC

IGNITION
SYSTEM

IGNITION
COIL

SPARK

PLUG

INSPECTION

CLEANING
AND
REGAP

SERVICE

DATA
AND

SPECIFICATIONS

GENERAL
SPECIFICATIONS

INSPECTION
AND
ADJUSTMENT

TIGHTENING
TORQUE

TROUBLE

DIAGNOSES
AND

CORRECTIONS

I
BATTERY

II
STARTING
MOTOR

III
ALTERNATOR

Including
voltage
regulator

IV
IGNITION
CIRCUIT
EE
20

EE
22

EE
22

EE
23

EE

23

EE
24

EE
24

EE
25

EE
25

EE
28

EE
29

EE

29

EE
29

EE
30

EE
30

EE
31

EE
33

EE

34

EE
34

EE
35

EE
36

EE
37

WARNING

Never
touch

positive
and

negative

terminals
at
the
same
time
with

are
hands
Th

l
Il
d
result
in

injury

CHECKING

ELECTROLYTE
LEVEL

Remove
six
vent

plugs
and
check

for

electrolyte
level
in
each
cell

If

necessary
pour
distilled
water

CHECKING

SPECIFIC

GRAVITY

Specific

gravity
of

battery
electro

lyte
is
tested

by
a

hydrometer
If
the

state
of

charge
of

battery
is
below

70

battery
must
be

recharged
or

battery
electrolyte
concentration
ad

justed

EE473

Fig
EE
l

Charging
Condition
Engine
Electrical

System

BATTERY

The

gravity
of

electrolyte

changes

0

0007
for

every
loe

I
80F

temper

ature
Converted

specific
gravity
at

200e

680F
can
then
be
made

by

using
the

following
form
la

S20
St
0

0007
t
20

Where

St

Specific
gravity
of

electrolyte

at
tOe

S20
Specific
gravity
of

electrolyte

corrected
al
200e
680

F

t

Electrolyte

temperature

For

example
A

hydrometer
read

ing
of
1
260
at
300e
860F
would
be

1
267
corrected
to
200e
680F
indi

cating
fully
charged
battery
On
the

olher

hand
a

hydrometer
reading
of

1
220
at
lOoe

I40F
would
be

I

199
corrected
to
200e
680F
indi

cating
a

partially
charged
battery

The
state
of

charge
of

battery
can

e
determined

by
the

following
table

if
the

specific
gravity
of

electrolyte
is

known
Before

checking
be
sure
that

cells
are
filled
to
correct
level
Converted

specific

gravity
S20

l
301

l

Z
L2

I

1

2
I

Ii

8
1

24

E

1

22

2
t
2e

u

1

18

c

i
1
161

1
141

2
1
12

Q

1
10

I

to

0

to
20
30

40
50

14
32

50
68
86
104
122

EEOO3

Electrolyte

temperature
Oc
OF

Fig
EE
3
Conversion

of
Specific

Gravity

BATTERY

FREEZING

Battery
electrolyte

freezing
point

varies
with
acid
concentration
or
its

specific
gravity
A

battery
with
an

insufficient

charge
will
freeze
al
lower

temperatures
If

specific
gravity
of
a

battery
falls
below
1
I

this
is

an

indication
that

battery
is

completely

discharged
and
will
freeze

readily

when

temperat
res
fall

below
freezing

Note

Use
extreme
caution
to
avoid

freezing
battery
since

freezing
will

generally
ruin
the

battery

1

u
B
I

r
eleYel
60
76

Ji
I
k

E

I
I
d

8
70
94

80
112
I

I
f

1

Thermal

gauze

1
00
1

08
1
16

1
24

1
32

2

Hydrometer
1

04

1
12
1
20
1
28

EE001

Specific
gravity
of

electrolyte

EE004

Fig
EE
2

Checking
Specific
Gravity
Fig
EE
4

Freezing
Point

of
Electrolyte

EE
2