charging DATSUN 210 1979 Service Manual

3
Check
air

injection
pump
belt

tension
and
adjust
to

specifications
if

necessary

4

Plug
up
air

discharging
hose

from

C
A
C
valve
California
models

y

o

EC144A

Fig
EC
44

Plugging
C
A

C
Value

Air

Discharging
Hose

California
model

S

Disconnect
air

supply
hose
at

check
valve

6
Insert

open
pipe
end
of
Air

Pump

Test

Gauge
Adapter
STl9870000
in

air

supply
hose

Clamp
hose

securely

to

adapter
to

prevent
it
from

blowing

out
Position
adapter
and
test

gauge
so

that
air
blast
emitted

through
drilled

pipe
plug
will
be

harmlessly
dissipated

7
Install
a
tachometer
on

engine

With
the

specified
engine
speed
ob

serye
air

pressure
A

produced
at
test

gauge

Air

pressure
A

More
than

100

mmHg
3
94

inHg

at
2
600

rpm

I

jff

100
m

Hg

f1

3
94

mHg

I

EC145A

Fig
EC
45

Testing
Air

Pump

8
If
air

pressure
does
not
meet

above

specifications
proceed
as

follows
Emission

Control

System

Non

California
models

1
Repeat
2

and
3
above

2
With

engine
speed
at
1
500

rpm

disconnect
tube

from

adapter
and

close
hole
of

test

gauge
with

finger
If

a

leaking
sound
is
heard

or

leaking
air

is
felt

by
finger
at
relief
valve
relief

valve
is

malfunctioning
Relief
valve

should
be

replaced
or

repaired

3
If
air

injection
pump
does

not

meet
minimum

requirement
of

pres

sure
test
it
should
be

repaired

California
models

Disassemble
the
air

pump
and
re

pair
it

Check
valve

Warm

up
engine
thoroughiy

2
Disconnect

hose

leading
to

check

valve
from
air

hose
connector

3
Check
hose

opening
for

any
indi

cation
of
exhaust

gas
leaks
If
leaks

are

detected

replace
check
valve

4
Race

the

engine
lightly
at
about

2
000

rpm
and
then

return
it
to

idling
Visually
check
the
hose
for

any

indication
of
exhaust

gas
leaks

before

the

engine
returns
to

idling
speed
If

leaks
are
detected

replace
check
valve

EC146A

Fig
EC
46

Checking
Check
Valve

Air
pump
relief
valve

After

completing
inspection
of
air

pump
check
air

pump
relief

valve
in

the

following
steps

I
Disconnect
hoses

leading
to
check

valve
and
air
control
valve
from
air

hose

connector
and
install

blind
c

p

to
the
connector

2
With

engine
running
at
about

3
000

rpm
under

no
load

place
your

EG
7
hand
on
the
air
outlet
of
air

pump

relief
valve
to

check
for

discharged
air

If

no
air
is
felt

replace
the

air

pump

relief
valve

G

EC575

Fig
EC
47

Checking
Air

Pump

Relief
Valve

Anti
backfire
valve

A
B

valve

I
Warm

up
engine
thoroughly

2
Disconnect
hose
from
air

cleaner

and

place
a

finger
near
the

outlet

3
Run

engine
at
about
3

QOO
rpm

under
no

load
then

quickly
return
it

to

idling
If

you
feel
a

pull
or
suction

force
on

your
finger
the
anti
backfire

valve
is

functioning
normally
If

no

suction
is

felt

replace
the
anti
backfire

valve

EC768

Fig
EC
48

Chocking
Anti

backfire

Valve

C
A
C
valve

California
models

I

Make
sure
that

C
A
C

valve
vacu

um

hose
and
air

hose
are

not
cracked

2
Warm

up
engine
throughly

3
With

engine
at
idle

place
your

fmger
over

relief
hose

opening
to

check
for

presence
of
air

4

With

engine
idling
disconnect

vacuum
hose
at
C
A

C
valve

Then
make

sure
that
air
is

discharg

ed
from

C
A
C
valve

C

A
C
valve
is

functioning

properly

if
air
is

discharged
from
it

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

CHARGING

If

electrolyte
level
is

satisfactory

battery
must
be

charged
when
electro

lyte
gravity
reading
falls
below
1
20
or

1
22

NS70
If

battery
on

car
is

quick
charged
to

bring
it

up
to
full

charge
the

operation
should
be

carried

out
with

negative
cable
removed

Prior
to

charging
corroded
termi

nals

should
be
cleaned
with

a
brush

and
common

baking
soda
solution
In

addition
the

following
items
should

be
observed
while

battery
is

being
Engine
Electrical

System

charged

I
Be

sure
that

electrolyte
level
is

above

top
of
each

plate

2

Keep
removed

plugs
in

a
safe

place

3
Do
not
allow

electrolyte
tempera

ture
to

go
over
4SoC
1130F

4
After

charging
check
to
be

cer

tain
that

specific
gravity
does

not

exceed
maximum

charging
specific

gravity
at

20
C
680F

Correction

can
be
made

by
adding
distilled
water

into

cells
as

necessary

5

Keep
battery
away
from

open

EE
3
flame
while
it
is

being
charged

6

After
all
vent

plugs
have
been

tightened
clean
all

sprayed
electrolyte

off

upper
face
of

battery

INSTALLATION

1
InstaU
and

tighten

clamps
secure

ly

2
After

clamps
have
been

tightened

clean

battery
cable
terminals
and

apply

grease
to

retard
formation
of

corrosion

The

charging
circuit
consists
of
a

battery
an

alternator

incorporating
an

IC

voltage
regulator
and

wiring
that

connects
these

parts

The

purpose
of

this

system
is
to

convert
mec
hanka

energy
from
the

engine
into
electrical

energy
which
is

used
to

operate
all

electrically
operat

ed
units
and
to

keep
the

battery

fully

charged

With
the

ignition
switch
in
ON
the

circuit
between

transistor
uTr

I
of
the

lC

voltage
regulator
and

ground
is

closed
Current
from
the

battery
then

flows

along
the
route

shown

by
the

arrOW
in

Fig
EE
26

turning
on
the

charge

warning
lamp
and

flowing
on

through
terminal
L

to
excite
the

rotor

When
the
alternator

begins
to

oper

ate
three

phase
alternating
current
is
ngine
Elect
ical

System

CHARGING
CIRCUIT

indicated

in
the
stator

coil
This
alter

nating
current
is

rectified

by
the

posi

tive
and

negative
silicon

diodes

When
the

voltage
at
terminal
8
is

higher
than

battery
voltage
current

produced
at
the

stator
flows

to
re

charge
the

battery
While
the

battery
is

being
re

charged
the

voltage
at
termi

nal
L

is

equal
to
that
of
terminal

8
At
this

point
there
is
no

voltage

differential
on
either
side
of
the

charge

warning
lamp
which
causes
the

charge

warning
lamp
to
turn
off
In

other

words
current
does

not
flow
from
the

battery
to
terminal
L

Accordingly

current
flow

through
the
rotor
as

shown
in

Fig
EE
27

is
taken
over

by

current

produced
at
the
stator
The

circuit
between
terminal
F
and

Tr
is

then
closed
See

Fig
EE
27

The
IC

voltage
regulator
monitors
generating
voltage
to
be

applied
to
the

battery
at
terminal
S
When
current

exceeds
the

specified
value
it
then

flows

through
the
zener
diode
ZD

closing
the

circ
it

consisting
of

transis

tor
Tr
and
resistor

R1
At
this

point
current
neither
flows

through

transistor
Tr

I
to

ground
nor
to
the

rotor

thereby

reducing
the

voltage

generated
at
the

stator
See

Fig

EE
28

When

voltage
generated
at
terminal

S
is

reduced
to
the

specified
value

transistor

allows
current
to
flow

through
the

rotor

increasing
the

generating
voltage

In

this
manner

output
voltage
from

the
alternator
does

not
rise
above
the

specified
value

by
the
ON
OFF

opera

tion

of
the

rotor
coil

through
the
IC

voltage
regulator

16

L

R
l
I

01
0

ls

CHARGE
LAMP

J
011

L

e
0

u

a

M
e

i
J

0

io
o
IGNITION

a

0

09

SWITC1
R2

El1
STATOR
COIL

04
0
R

F

1
BATTERY

8

ZD

ALTERNATOR

7
I

1
AJ

TI
3

IC
VOLTAGE
REGULATOR
Aa

E

1

7

EE760

Fig
EE
26

Simplified
Charging
Circuit
Initial
excitation

current

EE
10

J

o

u

o

ll

ALTERNATOR

nJn
l

0
0
Engine
Electrical

System

F
00IB

RJ
1

1s

0111
CHARGE
LAMP

rt
ei

tOlD

11

1
IGNITION

SWITC1
R2
i
I
oJor

EB

R

BATTERY
f

3

07

09

0
4
0

1
8

r

I
G
XiJ

Tts
R
o

s
o

E

1

J

IC

VOLTAGE
REGULATOR

Fig
EE

27

Simplified
Charging
Circ14it
When

battery
voltage
is
lower
than

regulating

voltage
EE761

I

h
it

r

f

1
0
0
J

o

U

ll

o

I

o

cr

ALTERNATOR
m
l

01

03

1

X
RJ
16

I

1s

OIlI

r
CHARGE
LAMP

L

l

@
R2
IGNITION

SWITCH1
w

Lp

R
l
Q7

BATTERY

T

8

T
F
i
R

j

JZO

RS

E

J

7

Ie

VOLTAGE
REGULATOR

EE762

Fig
EE
28

Simplified
Cluzrging
Circuit

When

battery

voltage
i

higher
than

regulating

voltage

EE
11

DESCRIPTION

The
alternator

incorporates
an
Ie

voltage
regulator
which
maintains
volt

age
within
the

specified
range
and

prevents

output
voltage
from

rising

higher
than
the

specified
value

Except

for
the
Ie
circuit

alternator

parts
are

essentially
the

same
as
those
of

the

conventional

type
alternator

Service

procedures
outlined
in

this

section
are
restricted
to
information

on

other
than
the

voltage
regulator

In
the

alternator
a

magnetic
field
is

CD
Engine
Electrical

System

ALTERNATOR

produced

by
the
rotor
which
consists

of

alternator
shaft
field
coil

pole

pieces
and

slip

rings
The

slip
rings

pressed
in
the

shaft
conduct

only
a

small

field
current

Output
current
is

generated
in
the
armature
coils
located

in
the
stator
The
stator
has
three

windings
and

generates
three

phase

alternating
current
Silicon
diodes
act

like
a

one

way
valve
for

electricity
so

that

charging
current

passes
easily
but

reverse
current
is
shut
out

In
this
alternator

pack
type
silicon
diodes
are
used

as
main
diodes

Nine

diodes
three

negative
three

positive
and
three

sub
diodes
are

installed
in

positive
and

negative
plates

as
an

assembly

These

diodes
are
direct

soldered
at

their

tips
and

constructed
with

posi

tive
and

negative
conjunction

They
are
mounted
on
the
two

plates
which
combine
the

function
of

heat

dissipating
plate
and

positive

negative
terminals
and
are

light
in

weight
and

easy
to

service

EE13
1

Pulley
assem
bly

2
Front
cover

3
Front

bearing

4
Rotor

Qj
5
Rear

bearing

6
Stator

7

Diode
Set

plate

assembly

8
Brush

assembly

9
Ie

voltage
regulator

10
Rear
cover

11

Through
bolt

EE647

Fig
EE
30
Alternator

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

Engine
Electrical

System

DISTRIBUTOR

D4K8
18

D4K8
15

I
D4K8

16

Type
D4K8
19

I
D4K8

13
D4K8

02

Applied
model
FU
model
California

models
Canada
Non
California
models

Transmission

MfT

Firing
order

Rotating
direction

IGNITION
COIL

Type

Applied
model

Primary
voltage

Spark
gap

SPARK
PLUG

Standard

Hot

Type

Cold

Applied
model

Size
screw
dia
x

reach

mm
in
AfT
MfT
MfT
AfT
MfT
AfT

I
3
4
2

Counterclockwise

cn
30

STC
30

All

v
12

mm
in
More
than
7
0
28

BP5ES
II

BP5EQ
13

BPR5ES

L46PW
1I
L45PM
13

BP4ES
1I

BP4EQ
13

BPR4ES

L47PW
1I

L47PM
13

BP6ES
1I

BP6EQ
13

BP7ES
1I

BP7EQ
13

BPR6ES

L44PW
1I

L45PM
13

BPR7ES

L45PW
1I
L44PM
13

U
S
A
FU
model
Canada

14
x
19
0
55
x
0
75

INSPECTION
AND
ADJUSTMENT

BATTERY

Type

Full

charging

specific
gravity
N50Z
NS70

1

26
1
28

EE
31

Engine
Electrical

System

TROUBLE

DIAGNOSES
AND

CORRECTIONS

I

BATTERY

Battery
is
not

charged
correctly

I

Correctly
adjust
belt
tension
of
alternator

2

Complete
connections
in

charging
system

3

Securely
connect

battery
terminals

Lighting
Joadtest

I
Make

sure
that

electrolyte
level
is
correct

2
Crank

engine
for

three
seconds
with

ignition
system
open

3
Turn
on

headlight
low
beam
for
one
minute

and
then
measure

specific

gravity
of

each
cell
of

battery

Specific
gravity
of
each
cell
is

less

than
1

200

N50Z
or
1

220

NS70

1
When

specific
gravity
can
not
be

raised
above
1

200

by
charging

the

battery
is
run
down
Specific
gravity
of

some
cells
is

above
1
200

N50Z
or
1

220

NS70
but
others

show
lower

specific
gravity

Unbalance
is
within

0
05

Discharged

battery
Charge
it

and

repeat

lighting
lood
test

Unbalance
is
within
0
05

Batter
is

satisfactory

EE
J4
Specific
gravity
of
each

cell
is

above

1

200

N50Z
or
1

220
NS70

Unbalance
of

specific
gravity
be

tween
cells
exceeds
0
05

I

Battery
is

run
down

Unbalance
of

specific
gravity
be

tween
cells
exceeds
0

05

I

Battery
is

run
down