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En
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Electrical
Syst
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IGNITION
SWITCH
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VOLTAGE
REGULATOR
I
I
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WR
I
1
d
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t
J
t
IGNITION
WR
SWITCH
BW
U
0
AUTO
CHOKE
RELAY
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1
WR
J
I
00
00
gg
1
00
VR
1
E
lDID
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@
O
BAT
mID
W
J
WR
W
FUSE
BLOCK
CHARGE
WARNING
LAMP
5J
BL
Note
@
V
@
California
models
Non
Qilifomo
18
models
FU
models
Fig
EE
29
Circuit
Dinrswr
EE742
mofCIuJ
Tg
ng
Sy
t
m
EE
12

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

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
II
STARTING
MOTOR
Condition
Starting
motor
will
not
operate
Noisy
starting
motor
Starting
motor
cranks
lowly
Starting
motor
cranks
slowly
Starting
motor
operate
but
does
not
crank
engine
Starting
motor
will
not
disengage
even
if
ignition
switch
is
turned
off
Probable
cause
Discharged
battery
Damaged
solenoid
witch
Loose
connections
of
terminal
Damaged
field
coil
Damaged
brushes
Damaged
bearing
Damaged
annature
Loose
securing
bolt
Worn
pinion
gear
Poor
lubrication
Worn
commutator
Worn
brushes
Discharged
battery
Loose
connection
of
terminal
Worn
brushes
Locked
brushes
Loose
connections
of
terminal
Damaged
field
coil
Damaged
brushes
Damaged
bearing
Damaged
armature
Dirty
or
worn
commutator
Armature
rubs
field
coil
Damaged
splenoid
switch
Worn
pinion
Locked
pinion
guide
Worn
ring
gear
Damaged
sOlenoid
switch
Damaged
gear
teeth
EE
35
Corrective
action
Charge
or
repiace
battery
Repair
or
replace
solenoid
switch
Clean
and
tighten
terminal
Replace
yoke
Replace
brushes
Replace
bearing
Replace
armature
Tighten
Replace
Add
oil
Replace
Replace
Charge
Clean
and
tighten
Replace
Inspect
brush
pring
tension
or
repair
brush
holder
Clean
and
tighten
terminal
Replace
yoke
Replace
brushe
Replace
bearing
Replace
armature
Clean
and
repair
Repalce
assembly
Repair
or
replace
Replace
Repair
Replace
Repair
or
replace
Replace
damaged
gear

Engine
Electrical
System
IV
IGNITION
CIRCUIT
When
engine
does
not
start
If
there
is
no
problem
in
fuel
system
ignition
system
should
be
checked
This
can
be
easily
done
by
detaching
a
high
tension
cable
from
distributor
starting
engine
and
ob
serving
oondition
of
spark
that
occurs
between
high
tension
cable
and
engine
block
After
checking
this
repair
as
necessary
tery
and
anti
dieseliilg
wlenoid
valve
connector
to
cuI
off
supply
of
fuel
10
engine
Then
observe
the
condition
of
sparks
while
starter
motor
is
in
operation
Note
Turn
ignilion
switch
off
and
disconnect
ground
cable
from
bat
Condition
Location
Probable
cause
Corrective
action
No
spark
at
all
Distributor
Breakage
of
lead
wire
on
low
tension
side
Repair
Poor
insulation
of
cap
and
rotor
head
Replace
Open
pick
up
coil
Replace
Air
gap
wider
than
specification
Adjust
Ignition
coil
Wire
breakage
or
short
circuit
of
coil
Replace
with
new
one
High
tension
cable
Wire
coming
off
Repair
Faulty
insulation
Replace
IC
ignition
unit
Faulty
IC
ignition
unit
Replace
Breakage
of
circuit
Replace
Detached
connection
Repair
Spark
length
Spark
plugs
Spark
plug
gap
too
wide
Correct
or
replace
More
than
6
mm
Too
much
carbon
Clean
or
replace
0
24
in
Broken
neck
of
insulator
Replace
Expiration
of
plug
life
Replace
Distributor
Air
gap
too
wide
Correct
IC
ignition
unit
Faulty
IC
ignition
unit
Replace
Breakage
of
circuit
Replace
Detached
connection
Repair
EE
37

INSTALLATION
Install
in
the
reverse
order
of
re
moval
observing
the
following
Note
When
inslal1ing
be
sure
to
check
thaI
electrical
harnesses
are
connected
ly
1
When
installing
first
secure
rear
engine
mounting
member
to
body
2
Refer
to
applicable
section
when
installing
and
adjusting
any
parts
Adjust
clutch
pedal
free
travel
Re
fer
to
Clutch
Pedal
Free
Travel
Section
CL
for
installation
and
adjustment
Adjust
accelerator
control
system
Refer
to
Engine
Control
System
Section
FE
for
adjustment
For
installation
of
air
conditioner
compressor
and
belt
adjustment
Refer
to
Idler
Pulley
and
Com
pressor
Drive
Belt
for
adjustment
of
belt
tension
3
When
installing
exhaust
front
tube
on
exhaust
manifold
be
sure
to
use
new
gasket
4
When
installing
hood
following
engine
installation
be
sure
that
it
is
properly
centered
and
that
hood
lock
operates
securely
Refer
to
Hood
See
tion
BF
for
adjustment
Engine
Removal
Installation
ENGINE
MOUNTING
INSULATOR
FRONT
INSULATOR
Removal
Disconnect
battery
ground
cable
2
Suspend
engine
with
wire
or
chain
3
Remove
front
engine
mounting
insulator
lower
and
upper
nuts
on
both
sides
4
Make
sure
that
wire
or
chain
used
to
suspend
engine
is
positioned
prqper
ly
so
that
no
load
is
applied
to
insulators
and
remove
nuts
complete
ly
5
Lift
up
engine
and
separate
in
sulators
from
engine
mounting
rack
ets
Inspection
If
there
is
damage
deterioration
or
separation
of
bounded
surface
re
place
Installation
Install
front
insulators
in
reverse
sequence
of
removal
noting
the
fol
lowing
1
Do
not
confuse
right
and
left
insulators
R
right
side
or
L
left
side
identification
mark
is
stamp
ed
on
each
insulator
2
Install
front
insulator
so
that
ER
5
position
pin
is
projected
upward
3
Tighten
the
bolts
and
nut
correct
ly
and
securely
See
Fig
ER
I
REAR
INSULATOR
Removal
l
Support
transmission
weight
with
ajack
2
Remove
nuts
securing
rear
engine
mounting
insulator
to
mounting
mem
ber
3
Remove
bolts
connecting
rear
en
gine
mounting
insulator
to
transmis
sion
reaf
extension
housing
4
Jack
up
the
transmission
a
little
and
remove
insulator
Inspection
If
there
is
damage
deterioration
or
separation
of
mating
surface
replace
Installation
Install
rear
engine
mounting
mem
ber
and
insulator
in
reverse
order
of
removal
noting
the
following
I
Install
insulator
in
place
so
that
direction
of
mounted
insulator
is
same
as
that
in
Fig
ER
2
Tighten
nuts
and
bolts
correctly
and
securely
As
for
tightening
torque
see
Fig
ER
l