check oil DATSUN 210 1979 Workshop Manual

Starting
motor

S

DIAGNOSES
OF
TEST

I
Low

speed
with
no
load
and

high

current
draw

may
result
from
the

following

I
Tight
dirty
or
worn

bearings

2
Bent

armature
shaft
or

loosened

field

probe

3
Shorted
armature

Check
armature
further

4
A

grounded
armature
or
field

a
Remove

input
terminal

b
Raise
two

negative
side
brushes

from
commutator

c

Using
a
circuit

tester

place
one

probe
onto

input
terminal
and
the

other

onto

yoke

d
If

tester
indicates

continuity

raise

the
other
two
brushes
and
check

field

and
armature

separately
to
deter

mine

whether
field
or

armature
is

grounded

2
Failure
to

operate
with

high
cur

rent

draw
may
be

caused

by
the

following

I
A

grounded
or

open
field
coil

Inspect
the
connection
and

trace

circuit

with
a
circuit
tester

2
Armature
coil
does
not

operate

Inspect
commutator
for
excessive

burning
In
this

case
arc

may
occur
on

damaged
commutator
when
motor
is

operated
with
no
load

3

Burned
out

commutator
bar

Weak

brush

spring
tension
broken
Engine
Electrical

System

Switch

Battery

Vultmeter
Ammeter

EE738

Fig
EE

22
No
load

Testing

brush

spring
rubber
bush
thrust
out

of
mica

in

commuta
tor
or
a

loose

contact
between
brush
and

conunuta

tor
would
cause
commutator
bar

to

burn

3
Low
current

draw
and
low

no

load

speed
would

cause

high
internal

resistance
due
to
loose

connections

damaged
leads

dirty
commutator
and

causes
listed
on
item
2
3

MAGNETIC

SWITCH

ASSEMBLY
TEST

Switch

2

1
6

11

p
IB
b

I

Battery
Starter
motor

EE351

Fig
EE

23
Circuit

of
Magnetic

Switch

Assembly
Test

If
the

starting
motor

check
is

OK
check

magnetic
switch
assem

bly
Connect

cables
between

negative

battery
terminal

and
start

ing
motor
M

terminal

positive

battery
terminal

and

starting
motor

8
terminal

connecting
a

switch
in

series

as
shown
above

EE
9
Non
reduction

gear
type

With
the
switch

on

push
pinion

back
to
remove
all

slack
and
measure

the
clearance
between

pinion

front

edge
and

pinion
stopper

Clearance
L

0
3

to
2
5
mm

0
012
to
0

098
in

EE644

Fig
EE
24

Measuring
Clearance

l

Reduction

gear
type

Compare
difference
2
in

height

of

pinion
when
it
is

pushed
out

with

magnetic
switch
energized
and
when
it

is

pulled
out

by
hand
until
it
touches

stopper

Difference

L

0
3

to
1
5

mm

0
012
to
0
059
in

Pull

out

by

hand
until

pinion
stops
Push
out

1

1

n

11

r

L

Difference
EE688

Fig
EE
25

Measuri
g
Difference
L

If

necessary

adjust
it

by

changing

or

adding

adjusting
washer
s

Adjust

ing
washers
are
available

into

two

different
sizes
0
5

mm
0

020
in
and

0

8
mm
0
031

in

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

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

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

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

Engine
Electrical

System

Battery
Ignition
switch

CG

1

e
@

P
L
JO

L
J

Ignition
coil

r

Spark
timing

signal

I

oni
1oring

Clfcwt

0
R

Lock

Pi
k
il
preventing

c

up
co

circuit

Ln
n

Distributor
2P

fJ
1I
connector

8C

H
uty
control

ClICUlt
Power

switching

circuit

Current

limiting

circuit

Ie

ignition
unit

EE749

Fig
EE
66
Ie

Ignition
Unit
Circuit

Diagram

REMOVAL
AND

INSTALLATION
5
Disconnect

pick
up
coil
wire
from

IC

ignition
unit

Note
Holding
connector
with
needle

nose

pliers
as
shown
in

Fig
EE
68

disconnect

pick
up
coil
terminal
Be

careful
not
to

pull
lead
wire
I
Disconnect

battery
ground
cable

2

Take
off
distributor

cap
and
re

move
rotor
head

3

Disconnect
harness
connector

4

Remove
Ie

ignition
unit

securing

screws

rf

I
I

EE751

Fig
EE
68
Di
Connecting
Pick

up
Coil

Term
inal

eE750

Fig
EE
67

Removing
Ie

Ignition

Unit
6

InstaU
IC

ignition
unit
in

the

reverse
order

of
removal

EE
25
CAUTION

Before

instelling
IC

ignition
unit
mike

sure

mlting
surfaces
of

IC

ignition
unit

end
distributor
Ire
cleen
and
free
from

dust

sand
and
moisture

Note

a
When

connecting
lead
wires

to
unit

insert
lead
wire
terminal
with
fin

ger
as
shown
in

Fig
EE
69

b

Connect
lead
wires

according
to

color
marked
on

upper
face
of

grommet

EE752

Fig
EE
69

Connecting
Pick

up
Coil

Terminal

CHECKING
IC

IGNITION
SYSTEM

DESCRIPTION

To
check
the
IC

ignition

system

use
a
circuit

tester
The

ignition
per

fannance
of
the

ignition
system
at
a

high
speed
cannot
be
measured

direct

ly
However

it
can
be

checked

by

operating
a
vehicle

actually
at
a

high

speed
The
IC

ignition
system
can
be

checked

easily
by
referring
to
the

Inspection
Table
For
the

method
of

inspection
refer
to

respective
items

INSPECTION
TABLE

I

No

spark
occur

Check

high
tension
cable

NG
OK

Repair
and

lor
replace
ngine
Electrical

System

START

Check

sparking
performance

J
J
Sparks
oci
1u

IC

IGNITION
SYSTEM
OK

Check
power
supply
circuit

NG

Repair
and
or

replace
OK

Check

primary
circuit
Proceed
to

A

Proceed
to
A
NG

epair
an
or

replace
OK

Proceed
to
A
DISTRIBUTOR
ASSEMBLY
NG

lC
IGNITION
UNIT
AND
OR

PICK
UP

COIL
NG

Mealure

pick
up
coil
resistance

as
a

distributor
assembly

Except
approx
4000

Measure

igilition
coii

8terminalvoltage

Battery
voltage

t
OV

Measure

pick
up
coil
resistance

I
Ie
IGNITION
UNIT
NG

Except
approx
400n

Approx
400n

PICK
UP
COIL
NG

1
PICK

UP
COIL
OK
Replace

IC

IGNITION

Replace

I
UNI
NG

l
Meuure

pick
up
coil
resistance

Except
approx
4000
I

Check

sparking
performance

I
Replace

I

r
PICK
UP
COIL
NG

1

No

spark
occun

Sparks
occur

I
IC
IGNITION

flc
IGNITION
Proceed
to
A

Replace

UNIT
NG

i
UNIT
OK

Proceed
to
A

Replace

Proceed
to
A

CHECKING

PROCEDURE

Sparking
performance

check

L
Turn

ignition
switch
to

OFF

position

2
Disconnect
anti
dieseling
solenoid

valve
connector
to
cut
off

supply
of

fuel
to

engine

3

Disconnect

high
tension
cable

from

spark
plug

4

Keeping
high
tension

cable
end
4

to
5

mm
0

16
to
0
20
in

away
from

engine
block
rotate
starter
motor
and

check
whether
sparks
occur
across
the

clearance
JUDGMENT

Sparks
occur

IC

ignition
system
OK

In

this
case
IC

ignition
system
and

component
parts
need

not
be
checked

beyond
this

No

spark
occurs

IC

ignition
system
NG

In
case
of
NG
check

High
Tension

Cables

Nole

This
check
is

designed
to

deter

mine

only
ignition

spark
perform

ance
when

cranking

engine
If

test

results
are

satisfactory
Ibis
does

EE

26
I

Approx
400n

PICK
UP
COIL
OK

1C
IGNITION

UNIT
NG

I
Repair
and
or

replace

I
Proceed
to
A

Approx
400n

l
PICK
UP

COIL
OK

1

not

alwaY
indicate

performance

sufrlcienl
for

high
speed

operation

IOgh
tension

cable
check

Refer
to

Engine
Tune

up
for
Check

ing
Ignition
Wiring
Distributor

Cap

and
Rotor

JUDGMENT

If

high
tension

cable
is
OK
check

Power

SupplY
Circuit

If

high
tension
cable
is
NG

replace

cable

assembly

Power

suppl
circuit
check

Make

sure
that

ignition
switch
is

in
OFF

position

2

Disconnect
Ie

ignition
unit

con

nector
from
unit

3
Turn

ignition
switch
to
ON

position

4

Measure

voltage
at
the

terminal
as

shown
in

Fig
EE
70

I

I

1

Fig
EE
70
EE734

Checking
Power
Supply

Circuit

5
Turn

ignition
switch
to
OFF

position

JUDGMENT

Battery
voltage
is

indicated
OK

In
this
case

check

Primary
Circuit

Battery
voltage
is

not
indicated

NG

In

case
of

NG
check

power

supply

wirings
fusible

link

ignition
switch

and

connecto
s
for
condition
and
con

tinuity

Primer
circuit
check

I

Make
sure
that

ignition
switch
is

in
0
FF

position

2

Disconnect
IC

ignition
unit

con

nector
from
unit

3

Turn

ignition
switch
to
ON

position

4

Measure

voltage
at
the
terminal
as

shown
in

Fig
EE
7I

1
I
r

1

EE735

Fig
EE

7I

Checking
Primary

Circuit
Engine
Electrical

System

5
Turn

ignition
switch
to

OFF

position

JUDGMENT

Battery
voltage
is
indicated
OK

In
this
case
proceed
to
the

step
for

IC

Ignition
Unit
and
Pick

up
Coil

Check

Battery
voltage
is
not
indicated

NG

If
NG
check
condition
and

con

tinuity
of

primary
circuit

wirings
and

connectors
If
results
of

these

inspec

tions
are

satisfactory
check

Ignition

Coil

Ignition
coil
check

I

Make
sure
that

ignition
switch
is

in

OFF

position

2
Disconnect
harness

connector

from

ignition
coil8terminal

3
Measure
resistance
between
and

8terminals

Resistance
1

range

C2J

j

EE567

Fig
EE
72

Checking
Ignition
Coil

Assem

bly

JUDGMENT

If
resistance
value
is
0
84
to

1
02n

OK

If
resistance
value
is

other
than

the

specified
value
NG

Ie

Ignition
unit
end

pick
up

coli
check

If

power
supply
circuit

primary

circuit

and

high
tension

cables
are
in

good
order
IC

ignition
unit

and
or

pick
up
coil
are

malfunctioning

I

Make
sure
that

ignition
switch
is

in
OFF

position

2
Remove

distributor

cap
and
ro

tor

EE
27
3
Measure
resistance

between
two

terminals
of

pick
up
coil

as
a
distribu

tor

assembly
with
a
circuit
tester

1
Tester

probes

2
Grommet

3
Ie

ignition
urnt

EE736

Fig
EE

73

Measuring
Pick

up
Coil

Resistance

4
Measure
resistance

by
reversing

polarity
of
circuit

tester

probes

JUDGMENT

Approx
400n
are
indicated

Pick

up
coil
OK

IC

ignition
unit
NG

In

this
case

replace
faulty
IC

igni

tion
unit
with

new
one

Approx
400n
are
not
indicated

Condition
cannot
be

judged

Thus

proceed
to
item
5

Note
If
resistance
is

approx
4OOn

no

further

inspection
is

required

replace
IC

ignition
unit

5
Make
sure
2

pin
IC

ignition
unit

connector
is

securely
connected
to

unit

6
Turn

ignition
switch

to
ON

position

7
Measure

voltage
at

ignition
coil
8

terminal

8
Turn

ignition
switch
to
OFF

position

CAUTION

Turn

ignition
switch
off
after

releasing

test

probe
of
circuit

tester
from

nega

tive
terminal
of

ignition
coil
Failure

to
do

this
could
result
in

damage
to

circuit
tester

JUDGMENT

OV
is

indicated

IC

ignition
unit
NG

But

condition
of

pick
up
coil
can

not
be

judged
Proceed
to
the
item

for

Pick

up
Coil

Check

Bat

tery
voltage
is
indicated

Condition
cannot
be

judged

Proceed
to
item
9

9

Remove
IC

ignition
unit

Refer
to
IC

ignition
Unit
for
re

moval

10
Measure
resistance

between
two

terminals
of

pick

up
coil

JUDGMENT

Approx
40011
are
indicated

The

ignition
coil
is

an
oil
filled

type
The

ignition
coil
case
is
filled

with
oil
which
has

good
insulating
and

heat

radiating
characteristics

The

ignition
coil
has
a

greater
ratio

between
the

primary
and

secondary

windings
to

step
up
battery
voltage
to

high
voltage
This

causes

stronger

sparks
to

jump
the

spark
plug
gap

The

cap
is

made
of

alkyd
resin

which
offers

high
resistance

to
electric

arc
and

increased
insulation

When

high
tension
cable
is
installed

to

ignition
coil
there
should
be

no

clearance
between
their

caps

Note

Do
not

disconnect

high
tension

cables
from

spark
plugs
during
en

gine
running

r

EE354

1

High
tension
cable

2
Rubber
cap

Fig
EE
74
Correct
Instalhltion

of

High
Tension
Cable
Engine
Electrical

System

Pick

up
coil
OK

IC

ignition
unit

NG

Approx
40011
are
not

indicated

Pick

up
coil
NG

Condition
of
IC

ignition
unit

can

not
be

judged
Proceed
to

item
11

II

Replace
faulty
pick
up
coil
with

new

one

12
Install

original
IC

ignition
unit

13
Check

parking
performance

JUDGMENT

Sparks
occur

IC

ignition
system
IC

ignition
unit

OK

No

spark
OCCUrs

IC

ignition
unit

NG

IGNITION
COIL
If
NG

replace

faulty
IC

ignition

unit

with
new
one

P1ck
up
coil
check

I

Make
sure
that

ignition
switch

is

in

OFF

position

2
Remove

IC

ignition
unit

Refer
to

IC

Ignition
Unit
for
removal

3
Measure
resistance

between
two

terminals
of

pick
up
coil

JUDGMENT

Approx
40011
are
indicated
OK

Approx
40011
are
not

indicated

NG

If

NG

replace
faulty
pick
up
coil

with
new

one

1

@

I

rJ

1

C

I

I

i

jllll
1

t

1

Rubber
cap
for

ignition
coil

2

Secondary
tenninal

3

Cap

4

Primary
terminal

5

Spring

6

Secondary
winding

EE
28
EE578

7

Primary
winding

8

Side
core

9
Insulator

10
Center
core

11

Segment

12
Case

Fig
EE

75
Ignition
Coit