engine oil DATSUN 210 1979 Repair Manual

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o

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ALTERNATOR

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l

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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

REMOVAL

1

Disconnect

battery

negative

cable

2

Disconnect
two

lead
wires
and

oonnector
from
alternator

3

Loosen

adjusting
bolt

4

Remove
alternator
drive

belt

5

Remove

parts
associated
with

alternator
from

engine

6
Remove
alternator

from
car

DISASSEMBLY

I
Remove

through
bolts

Separate

front
cover
with
rotor

from
rear
cover

with
stator

by
lightly

tapping
front

bracket
with
a

wooden
mallet

rnJ

J

i

EE525

Separating
Front

COI
T

Fig
EE

31

2

Place
rear
cover
side
of

rotor
in
a

vise

with
soft

jaw
and

remove

pulley

nuts
Then
remove

pulley
and
fan

from
rotor
shaft

3

Remove

setscrews
from

bearing

retainer
and

separate
rotor
from
front

EE526

Fig
EE
32

Removing

Pulley
and
Fan

tr

s

0
27

Fig
EE
33
Removing
Rotor
Engine
Electrical

System

4
Pull

rear

bearfug
off
rotor

assem

bly
with
a

bearing
puller
or

press

EE037

Fig
EE
34

Pressing
Out

Rear

Bearing

I

EO

Fig
EE

35
Pulling
Out
Rear

Bearing

5

When

removing
IC

regulator

only

proceed
as
follows

I

Using

soldering
iron

disconnect

wire

connecting
diode

set

plate
to

brush
at
brush

terminal

2

Remove

bolt

securing
diode
set

plate
to
rear
cover
side
face

3

Remove
nut

securing
battery

terminal
bolt

4

To
facilitate
removal

s1ighly
lift

stator

coil

together
with
diode
set

plate
from

re
r
cover
Then
remove

screw

connecting
diode
set

plate
with

brush

5

Separate
stator
coil
and
diode

together
with

rear
cover
and

remove

brush
and

IC

regulator

6
Disconnect
stator

coil
lead
wires

from
diode
terminals
with

a

soldering

iron

Remove

screws

securing
brush
re

move
stator
from

rear
cover

EE648

Fig
EE
36

Removing
Stator

Coil

EE
14
7

Disconnect
wire
from
diode
tor

minal
at
brush
terminal
with

soldering

iron

Remove

brush

assembly
with
IC

regulator
by
loosening
screws

8
Remove
diode

holder

by
loosen

ing
screws

acefii
li

E
E649

Fig
EE

37

Removing
Diode
Holder

INSPECTION
AND

REPAIR

ROTOR
INSPECTION

I

Continuity
test
of
rotor
coil

Apply
tester
between

slip

rings
of

rotor
If

there
is

no

continuity
field

coil
is

open

Replace
rotor

assembly

Fig
EE

38

Continuity
Test

of

Rotor
Coil

2

Ground
test
of
rotor
coil

Check

continuity
between

slip
ring

and

rotor
core
If

continuity
exists

replace
rotor

assembly
because
rotor

coil

or

slip
ring
may
be

grounded

EE532

Fig
EE
39
Te

ting
Rotor
Coil

for
Ground

INSPECTION
OF
STATOR

Continuity
test

Stator
is
normal
when
there
is

continuity
between
individual
stator

coil

terminals
When
there
is

no
conti

nuity
between
individual
terminals

cable
is

broken

Replace
stator

assembly

EE533

Fig
EE
40

Testing
Stator

for

Continuity

2

Ground
test

If
each
lead

wire
of
stator
coil

including
neutral
wire
is

not
conduc

tive
with
stator
core
condition
is

satisfactory
If
there
is

continuity

stator

coil
is

grounded

EE534

Fig
EE
41

Testing
Stator

for

Ground

INSPECTION
OF
DIODE

Perform
a

continuity
test
on
diodes

in

both
directions

using
an
ohmmeter

There
are
six
main

diodes
and
tluee

sub
diodes
attached
to
set

plate
Three

main
diodes
are
attached

to

positive

EEl
plate
and
three
others

to

negative

8
plate
Three
sub
diodes
are

attached

to
terminals

The

continuity
test
should
be

per

formed
on
each
diode
between

the

terminal
and

plate
Engine
Electrical

System

Conductive
direction

EE045

Main
diode

installed
on

8
plate

is
a

positive
diode
which
allows

cur

rent
to

flow
from
terminal
to

EEl
plate

only
In

other
words
current
does
not

flow
from

8
plate
to

terminal

1

plate

2

Terminal

Fig
EE
43

Impecting
Positive

Diode
EE046

2

Main
diode
installed
on

Gplate
is

a

negative
diode

which
allows
current

to
flow
from

Gplate
to
terminal

only

In

other
words
current
does
not
flow

from

terminal

toGplate

1

plate

2

Tenninal

Fig
EE
44

Impecting
Negatiue

Diode
EE047

EE
15
rp

m

1

plate

2

ptate

3
Diode

Fig
EE

42
Conductive
Direction

of
Diode

3
Correct
direction
of

current
flow

for
three
sub

diodes
is
shown
in

Fig

EE
4S

Direction
of

electric
current

EE650

Fig
EE
45

Sub
Diode

If

current
flows
in
both

positive

and

negative
directions
diode
is
short

circuited
If
current
flows
in
one

direc

tion

only
diode
is
in

good
condition

If
there
is
a

faulty
main

diode

replace

all
diodes
as
an
assembly
See

table

below
These
diodes
are
unservicea

ble

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

DESCRIPTION

The

ignition
circuit
consists

of

igni

tion

switch
Ie

ignition
unit
dis

tributor

winng

ipark
plugs
and

battery

The

distributor
is

of
the

contactless

type
and
is

equipped
with
a

pick
up

coil
which

electrically
detects
the

igni

tion

timing
signal
in

place
of
the

ircuit

I
rea
r

of
the
conventional

distributor
The
IC

ignition
unit
is

a

new
addition

which

generates
the

signal
required
for
the

make
and
break

of
the

primary
current
for
the

ignition

coil

The

primary
current
is

supplied

by
the

battery
or
alternator
and

flows

through
the

primary
circuit

It
consists

of
the

ignition
switch

primary

winding
of
the

ignition
coil

IC

ignition
unit

and
all

connecting
low

tension

wiring

The

secondary
current
is

produced

by
the

ignition
coil
and
flows

through

the

secondary
circuit

resulting
in

high

voltage
spark
between

the
electrodes

of

the

spark

plugs
in

engine
cylinders

This
circuit

contains
the

secondary

winding
of
the

ignition
coil
distribu

tor

high
tension

cables
to

coil
and

spark

plugs
distributor

rotor
and

cap

When
the

ignition
switch
is

turned

on
and
the

distributor

reluctor
rotates

the

primary
current
flows

through
the

primary

winding
of
the

coil
and

through
IC

ignitionu
nit

to

ground

When
the

primary
circuit
is

opened

by
circuit

of
IC

ignition
unit

the

magnetic
field
built

up
in

the

primary

winding
of
the
coil

moves

through

the

secondary
winding
of
the

coil
in

ducing
high

voltage
This

high

voltage

is

produced

every
time

the

primary

circuit

opens
EngineElect
ical

System

IGNITfON

CIRCUIT

The

secondary
current

flows

through
the

high
tension

cable
to
the

distributor

cap
then

the
rotor

distributes
the
current
to

one
of
the

spark
plug
terminals
in
the

distrubutor

cap

Then
the

spark
occurs

while
the

secondary
current

jumps
the

gap
be

tween
the
insulated
electrode
and
the

ground
side
electrode
of
the

spark

plug
This

process
is

repeated
for
each

power
stroke

of
t

e

engine

The

spark
plug
should
be

inspected

cleaned
and

regapped
at

tune

up

Spark

plugs
should
also
be

replaced

periodically
as

specified
in

the

Maintenance
Schedule

The
remainder

of
the

ignition

component
parti
should
be

inspected

Battery

letink

Primary

winding

1

Ignition
coil

Secondary
winding
J
for

only
their

operation
air

gap
of

distributor

tightness
of

electrical

terminals
and

wiring
condition

Apply
grease
NLGI

consistency

No
I

containing
MaS
or

equivalent

to
distributor
rotor

shaft
as

required

WARNING

When
current
is

flowing
never

touch
with
bare

hand

high
tension

cables
or

any
other

parts
with

high

vollage
If

parts
are
moist

touching

them
could
cause
an
electric
shock

even
if

they
are
insulated

Always

wear

dry
well
insulated

gloves
or

wrap
affected

parts
with

dry
cloth

before

handling

To
starter

EE
20
Ro

or
head

Ul

J

r

Spark
plugs

EE743

Fig
EE
56

Ignition
System
Circuit

Diagram

FUSIBLE

LINK

BATTERY
VIR

9

rID
B
V
II

H
Engine
Electrical

System

1

II

1l

IGNITION

COIL

IIC
IGNITION

I
UNIT

O
J

DISTRIBUTOR

EE

21
B4J
QJ

jl

SPARK
PLUG
IGNITiON

SWITCH

EE744

Fig
EE
57
Circuit

DiGgram
of
Ignition
Sy
tem

L

Engine
E
ectrical

System

DISTRIBUTOR

CONSTRUCTION
in

place
of
the

breaker
The

amount
of

magnetic
flux

passing
through
the

pick
up
coil
is

changed
when
the

reluc

tor

rotates
and

then
the

electrical

signal
is

generated
in
the

pick

up
coil

This

electric

ignal
is

conducted

into
the
Ie

ignition
unit

which
makes
In
the
conventional

distributor
the

ignition
timing
is

detected

by
the

earn

and
breaker

arm
while
in
this
distribu

tor
it

is
detected

by
the
reluctor
on

the
shaft
and
the

pick
up
coil

provided
and
breaks

the

primary
current
run

ning
through
the

ignition
coil
and

generates
high
voltage
in
the

secondary

winding

The

centrifugal
and
vacuum
ad

vance
mechanisms

employ
the

conven

tional

mechanical

type

I
l
Q

J
1

C

@

@

ID

ID

J

I

Cap
assembly

2
Rotor
head

assembly

3
RoD

pin

4

ReluctoI

@
5

Stator

6

Magnet
assembly

7
Pick

up
coil

assembly

8
Breaker

plate
assembly

9
Rotor
shaft

assembly

10
Governor

spring

11
Governor

weight

12

Shaft

assembly

13

Housing

14
Grommet

15
Ie

igniq
n
unit

@f
rw
16
VacuwncontroUcr

17

Fixing
plate

t8
Collar

EE745

Fig
EE
58
Diatributor

EE
22

CHECKING
AND

ADJUSTMENT

CAP
AND
ROTOR
HEAD

Cap
and
rotor
head
should
be

in

spected
periodically
as

specified
in
the

Main
teoanee
Schedule
Remove

cap

and
clean
all

dust
and
carbon

deposits

from

cap
and

rotor
from
time

to
time

If

cap
is
cracked
or
is

leaking
replace

wi
th

a
new
one

ADVANCE
MECHANISMS

SpecHlcatlons

Refer
to
Service

Data
and

Specifica

tions

for
distributor

Vacuum
advance
mechanism

mechanical

parts

If

vacuum
advance
mechanism
fails

to

operate
properly
check
for
the

followin
B
items

and
correct
the

mal

function
as

required

I

Check
vacuum
inlet
for

signs
of

leakage
at

its
connection

If

necessary

retighten
or

replace
with
a

new
one

2
Check
vacuum

diaphragm
for
air

leak

If
leak
is

found

replace
vacuum

controUer

assembly

3

Inspect
breaker

plate
for
smooth

moving

If

plate
does
not
move

smoothly

this

condition
could
be

due
to

sticky

steel
balls
or

pivot
Apply
grease
to

steel
halls
or

if

necessary
replace

breaker

plate
as
an

assembly

Centrifugal
advance

mechanical

parts

When
cause
of

engine
malfunction

is

traced
to

centrifugal
advance
mecha

nical

parts
use
distributor
tester
to

check
its

characteristics

If

nothing
is

wrong
with
its

charac

teristics

conceivable

causes
are

faulty

or
abnormal

wear
of

driving
part
or

others
So

do
not
disassemble
it

In
the
event
of

improper
character

istics

check

closely
rotor

shaft
assem

bly

governor
weight
and
shaft

If

any
of
the
above

parts
are
mal

functioning
replace
the

parts
Engine
Electrical

System

DISASSEMBLY

AND
ASSEMBLY

DISASSEMBLY

I
Take
off

cap
and

remove
rotor

head

2
Remove

Ie

ignition
unit
Refer
to

IC

Ignition
Unit
for
removal
and
in

stallation

3
Remove
stator
and

magnet
by

removing
stator

securing
screws

4

Remove
vacuum
controller
by

removing
securing
screws

EE746

Fig
EE
59
Removing
Vacuum

Controller

5

Using
two

pry
bars

or
suitable

puller
pry
reluctor
from
shaft

CAUTION

When

removing
reluctor
be
careful

not
10
distort
or

damage
the
teeth

6
Remove
roll

pin

7
Remove

pick
up
coil

assembly

8
Remove
breaker

plate
setscrews

and
remove
breaker

plate
assembly

EE703

Fig
EE
60

Removing
Breaker
Plate

Setscrews

9
Punch
knock

pin
out
and
remove

pinion

EE
23
EE704

Fig
EE
61

Removing
Knock
Pin

10
Remove
rotor
shaft
and
drive

shaft

assembly

EE705

Fig
EE
62
Removing
Rotor
Shaft
and

Drive

Shaft
Assembly

11

Mark
rotor
shaft
and
drive

shaft

Remove

packing
from
the

top
of
rotor

shaft
and
unscrew
rotor
shaft
setscrew

Remove

rotor
shaft

EE706

Fig
EE
63
Removing
Rotor

Shaft

12

Mark
one
of
the

governor

springs
and
its

bracket
Also
mark
one

of
the

governor
weights
and
its

pivot

pins

13

Carerully
unhook
and

remove

governor

springs

14
Remove

governor
weights

A
r

ply
grease
to

guvernor
weights
after

disassembling

ASSEMBLY

To
assemble
reverse
the
order
of

disassembly
Carefully
observe
the

fol

lowing
instructions

CAUTION

B
tfore
installi
lg
IC

ignition
unit
make

sure

mating
surfaces
of
IC

ignition
unit

and
distriblitor
are
clean
and
free
from

dust
sand
and
moisture

Align
match

marks
so

that

parts

are
assembled
to

their

original
posi

tions

2

Ensure
that
reluctor
is

properly

oriented

when

installing
on

shaft
Al

ways
drive
in
roll

pin
with
its
slit

toward

the
outer
end

of
shaft
See

Fig
EE
64
Be

sure
to

use
a
new

roll

pin

DESCRIPTION

The

IC

ignition
unit

utilizes
a
semi

conductor
IC
device
and
is

mounted

on
the

side
surface

of
the
distributor

The

IC

ignition
unit

has
the
fol

lOwing
circuits

Spark
timing
signal
monitoring

circuit

This
circuit

detects
the

ignition

signal
sent
from
the
distributor

pick

up
coil

and

amplifies
the

signal

2

Lock

preventing
circuit

This
circuit

cuts
off
the

ignition

coil

primary
current
when
the

ignition

switch
is

ON
and
the

engine
is

sta

tionary

If
the

ignition
coil

primary
current

is

allowed
to
flow
under
such

condi

tions

excessive
current
will

be
drawn

because
of
low
internal
resistance
of

the

ignition
coil
Engine
Electrical

System

r

5

EE747

Fig
EE
64

Driuing
in
Roll
Pin

3

When

installing
pinion
on
shaft

be

sure
to

install

pinion
gear
correctly

to

position
where

it

was
installed

4

Apply
grease
to

the

top
of
rotor

shaft

as

required

5

Check
the

operation
of

governor

before

installing
distributor
on

engine

Ie

IGNITION
UNIT

This
can
result
in
an

abnormal

temperature
rise
in

the

ignition
coil

or

discharged
battery
These

malfunc

tions

can
be

prevented
by
this
lock

preventing
circuit

3

Duty
control
circuit

This
circuit

controls
the
ratio
of
the

ignition
coil

primary
current
ON
OFF

time

periods
in

one

cycle
of

ignition

operation

111is
is

equivalent
to
the
dwell

angle

of
the
conventional

point
type
dis

tributor
In
order
to

provide
high

performance

spark
ruing
over
a

wide

range
of

driving
speeds
this

duty
can

be
controlled

by
the
source

voltage

and
the

ambient

temperature
as
well

as

by
the

engine

rpm

4

Power

switching
circuit

This
circuit
is

used
to
make
or

break

directly
the

primary
circuit
cur

EE

24
6

Properly
eenterstatOr
and
reluc

tor
before

tightening

Standard
air

gap

0
3
to
0
5
mm

0
012
to
0
020
in

0
3
to

0
5
mm

0
012
to
0
020
in

Fig
EE

65
EE748

Air

Gap

7

Adjust
ignition
timing
after
distri

butor
is

installed
on

engine

rent
of
the

ignition
coil

5

Current

limiting
circuit

This
circuit

controls
the

current

value
so
that
excessive
current

will
not

flow

through
the

power

switching
cir

cuit

To
ensure

efficient

operation
of
the

IC

ignition
unit
these
five

circuits
are

manufactured
in

one

assembly
as

shown
in

Fig
EE
66

The

semi
conductor
IC
is

utilized

for
all
these
circuits

except
the

power

switching
circuit
The

power
switching

circuit

uses
one

power
transistor
and

the
circuit
is

arranged
on
the
ceramic

substrate

together
with
resislors

capa

citors

and
diodes

Each

component
part
of

this
unit
is

highly
reliable

however
should

any

part
be
found

faulty
the

entire
as

sembly
musl
be

replaced