oil type DATSUN PICK-UP 1977 Owner's Manual

Engine
Electrical

System

SERVICE
DATA
AND
SPECIFICATIONS

Type

System
voltage

No
load

Terminal

voltage

Current

Revolution
v

V

A

rpm

Brush

length
Outer
diameter
of
commutator
mm
in

mm
in

Brush

spring
tension

kg
Ib

Clearance
between

bearing
metal
and

armature
shaft
mm
in

Clearance
L
between

pinion
front

edge
and

pinion
stopper
mm
in

TROUBLE
DIAGNOSES
AND
CORRECTIONS

Condition

Starting
motor
will

not

operate

Noisy
starting
motor

Starting
motor

cranks

slowly
Probable
cause

Discharged
battery

Damaged
solenoid
switch

Loose
connections
of
terminal

Damaged
brushes

Starti

g
motor

inoperative

Loose

securing
bolt

Worn

pinion

gear

Poor

lubrication

Worn
commutator

Worn
brushes

Discharged
battery

Loose
connection
of
terminal

Worn
brushes

Locked
brushes

EE
ll
Manual

transmission
Automatic

transmission

Optional

for

manual

transmission

SII4
ISOB

S114
170B

12

12

Less
than

60

More

than
7

000
More
than
6
000

More
than
39

1
54

More
than
12
0
47

1
4

to
I
S
3
1
to
4
0

Less
than

0
2
O
OOS

0
3
to
1
5
0
012
to
0

059

Corrective
action

Charge
or

replace
battery

Repair
or

replace
solenoid
switch

Clean
and

tighten
terminal

Replace
brushes

Remove

starting
motor
and
make
test

Tighten

Replace

Add
oil

Replace

Replace

Charge

Clean
and
tighten

Replace

Inspect
brush

spring
tension

or

repair
brush

holder

DESCRIPTION

REMOVAL

DISASSEMBLY

INSPECTION
AND
REPAIR

ROTOR
INSPECTION

INSPECTION
OF

STATOR

DESCRIPTION

In
the
alternator
a

magnetic
field
is

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

@God

A
tfff
Engine
Electrical

System

ALTERNATOR

CONTENTS

EE
15

EE
16

EE
16

EE
16

EE
17

EE
17
INSPECTION
OF
DIODE

INSPECTION
OF
BRUSH

SPRING
PRESSURE
TEST

ASSEMBL
Y

ALTERNATOR
TEST

SERVICE
DATA
AND
SPECIFICATIONS
EE
17

EE
1B

EE1B

EE

1B

EE19

EE
19

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

di
odes

are
used

Six

diodes
three

negative
and
three

positive
are
installed
in

positive
and

negative
plates
as
an

assembly

These
diodes
are
direct
soldered
at

their

tips
and
constructed
with

posi

3

2

I
4

e

o

e

9
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

The

pulley
mounted
on
the
air

conditioner
models
is

different
from

that
on
the

standard
models
without

air
conditioner

1

Pulley
usem

bly

2
Front
cover

3
Front

bearing

4

Rotor

5

Rear

bearing

6
Stator

7
Brush
assembly

8
Rear
cover

9

Diode
set

plate
assembly

10
Diode
cover

11

Through
botrs

EE
15
EE345

Fig
EE
26

Exploded
view

Engine
Electrical

System

RegulatoI

r
Yellow
terminal

A
W
L
WR

IG
WL

N

Y
E
B
F
WB
Voltmeter

Fig
EE

52
Tuting

charging
re
Qy
EE348

SERVICE
DATA
AND
SPECIFICATIONS

Voltage
legulator

Type

Regulating
voltage
with

fully

charged
battery

Voltage
coil

resistance

RotOI
coil

inserting
resistance

Voltage
coil

series
resistance

Smoothing
resistance

COle

gap

Point

gap

Ch
uge
lay

Release

voltage

Voltage
coil

resistance

Core

gap

Point

gap
v

fl

nun
in

nun
in

V

fl

nun
in

mID
in
TLl

Z
S5C

14
3
to
15
3
at

200C
680F

10
5
at
200C
680F

10

31

40

0
6
to
1
0
0
024
to
0
039

0
35
to
0
45

0
014
to
O

OIS

4
2
to
5

2
at
N
terminal

37
S
at
200C
680F

0
8

to
1
0
0
031
to
0
039

0
4
to
0
6
0
016
to
0
024

Standard

tempelatUIe
gIlIdient
O
OISV
oC

EE
24

Primary
winding

1

Ignition
coo

I

Secondary

winding
CALIFORNIA
MODELS

The

ignition
circuit

consists
of

igni

tion

switch
transistor

ignition
unit

distributor

wiring
spark

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

circuit

breaker
of
the
conventional

distributor
The
transistor

ignition
unit

is
a
new
addition
which

generates
the

signal
required
for
the
make

and
break

of
the

primary
electric
current
for
the

ignition
coil

The
circuit
is

equipped
with
a

resistor

During
cranking
electrical

current

bypasses
the

secondary
resis

tor

thereby
connecting
the

ignition

coil

through
the

primary
resistor
This

makes

battery
voltage
available
at
ef

ficiently
and

keeps
ignition
voltage
as

high
as

possible

The

primary
resistor

selVeS
to

pro

tect
transistor

ignition
circuit

The
low

voltage
current
is

supplied

by
the

battery
or
alternator
and
flows

through
the

primary
circuit

It
consists
of
the

ignition
switch
Engine
Electrical

System

resistor

primary
winding
of
the

igni

tion

coil
transistor

ignition
unit
and

all

connecting
low
tension

wiring

The

high
voltage
current
is

pro

duced

by
the

ignition
coil
and

flows

through
the

secondary
circuit

result

ing
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
wires
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
transistor

ignition
unit
to

ground

When
the

prim

ary
circuit
is

opened

by
circuit

of
transistor

ignition
unit

the

magnetic
field

built

up
in
the

primary
winding
of
the
coil
moves

through
the

secondary

winding
of
the

coil

inducing
high
voltage
This

high

Battery
Primary
Secondary

I

Resistor

To

starter

r
Transis
tor

ignition

unit
I

I

Pick
up

rcoil

r
Rotor
head

nl

J
R5

U1f

1

Retuctor
r
oi

l
f
S

park

plugs
voltage
is

produced

every
time
the

primary
circuit

opens

The

high

voltage
current
flows

through
the

high
tension
wire
to

the

distributor

cap
then
the
rotor

distri

butor

cap
then
the

rotor
distributes

the

current
to

one
of

the

spark
plug

terminals
in

the
distributor

cap

Then
the

spark
occurs
while
the

high

voltage
current

jumps
the

gap

between
the
insulated
electrode

and

the

ground
side
electrode
of
the

spark

plug
This

process
is

repeated
for

each

power
stroke
of

the

engine

The

spark

plug
should
be

inspected

cleaned
and

regapped
at
tune

up

Spark
plugs
should
also
be

replaced

periodically
as

specified
in
the
Main

tenance
Schedule

The

remainder
of
the

ignition
com

ponent
parts
should

be

inspected
for

only
their

operation
air

gap
of

distri

butor

tightness
of
electrical
terminals

and

wiring
condition

Apply
grease

NLGI
consistency

No
I

containing
MoS
or

equivalent

to
distributor
rotor
shaft
as

required

EE287

EE
28
Fig
EE
55

Ignition

8Y3tem
circuit

diagram

Engine
Electrical

System

SERVICE
DATA
AND
SPECIFICATIONS

D4A4

06
D4A4
07

Type
D4A6
07
D4A6
08

Firing
order
1
3
4
2
13
4
2

Rotating
direction
Counterclockwise
Counterclockwise

Owen

angle
degree
490
to
550
490

to
550

Point

gap
mm
in
0

45
to
0

55
0
45
to
0
55

0
018
to

0
022
0
018
to
0

022

Point

pressure
kg
lb
0
40

to
0
55
0
40
to
0
55

0

88
to
1

21
0
88
to
1
21

Condenser

capacity
JlF
0
20

to
0
24
0
20

to
0
24

Condenser
isolate
resistance
Mrl
5
5

Cap
isolate
resistance
Mrl
50
50

Rotor
head
isolate
resistance
Mrl
50
50

Cap
carbon

point
length
mm
in
10

0
39
10
0
39

For
Canada

DISTRIBUTOR
California
models

CONSTRUCTION

CHECKING
AND
ADJUSTMENT

CAP
AND

ROTOR
HEAD

AIR

GAP

CONSTRUCTION

In
the
conventional
distributor
the

ignition
liming
is

detected

by
the
cam

and
breaker
arm
while
in
this
transis

tor

ignition
unit
it
is

detected

by
the

reluctor
on
the
shaft
and
the

pick
up

coil

provided
in

place
of
the
breaker

The

pick
up
coil
consists
of
a

magnet

coil
etc
The
amount
of

magnetic
flux

passing
through
the

pole
piece
in
the

coil
is

changed
at
the

moment
the

pole
CONTENTS

EE
33

EE
33

EE
33

EE
33
ADVANCE
MECHANISMS

DISASSEMBLY

ASSEMBLY

SERVICE
DATA
AND
SPECIFICATIONS
EE
33

EE
35

EE
35

EE
36

piece
faces
the

protrusion
of
the

re

luctor

and
then
the
electrical

signal
is

genera
ted
in
the

pick
up
coil

This
electric
signal
is

conducted

into

the
transistor

ignition
unit
which

in

turn
breaks
tI
e

primary
coil
current

running
through
the

ignition
coil
and

generates

high
voltage
in
the

secondary

winding
Also
this
transistor

ignition

EE
33
unit

utilizes
this
electric

signal
to

restore
the

primary
coil
to
the

original

state
after

cutting
off
the

primary

current
for
a
fIXed
time

The

centrifugal
and
vacuum
ad

vance
mechanisms

employ
the
con

ventional
mechanical

type
The
con

tactor
is
used
to
eliminate
vacuum

and

centrifugal
advance

hysteresis

I

t3
l

l

J
@

r
9

V

fW

@

@

CHECKING
AND

ADJUSTMENT

CAP
AND
ROTOR
HEAD

Cap
and

rotor
head
must
be
in

spected
periodically
as

specified
in
the

Maintenance
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

with

a
new
one

AIR
GAP

Standard
air

gap
is
0
2
to

0
4
mm

0
008
to
0
016
in

If
the

gap
is

off
the
standard

adjustment
mould
be

made

by
loos

ening
pick
up
coil
screws

Gap
gauge
is

required
for

adjust

ment
Air

gaps
must
be

checked
from

time

to
time

Air

gap
0
2

to
0
4
mm

0
008
to
0

016
in
Engine
Electrical

System

tl

@

9

EE328

Fig
EE
67

Checking
oir

gap

To

remove

pick
up
cail
disconnect

distributor
harness

at
terminal
block

and
remove
screw

securing
pick
up
coil

ADVANCE
MECHANISMS

Specifications

Type

Item

Vacuum
advance

Distributor

degrees

Distributor

mmHg
inHg

Centrifugal
advance

Distributor

degrees

Distributor

cpm

EE34
1

Cap

assembly

2

Rotor
head

a55embly

3

Roll

pin

4

ReJuctor

S
Pick

up
coil

6
Contactoi

7
Breaker

plate

assembly

8

Packing

9
Rotor
shaft

10
Governor

spring

11
Governor

weigh
t

12
Shaft
a
Jscmbly

13

Cap
setter

14

Vacuum
controller

15

Housing

16

Fixing
plate

17
O

ring

18
Collar

EE327

Fig
EE
66

Exploded
view

of
di3tributor

assembly
and
distributor
harness
to

their

positions

EE329

Fig
EE

68

Remouing
pick

up
coil

D4F4
04
D4F4
Q3

Manual
Automatic

00

150
5
91

30

250
9
84

00

550

110
2

300
00

600

110
1
950

EE299

Fig
EE
74

Driving
in
roll

pin
Engine
Electrical

System

4

Apply
grease
to
the

top
of
rotor

shaft
as

required

5

Check
the

operation
of

governor

before

installing
distributor
on

engine

6

Adjust
ignition
timing
after

distri

butor
is
installed

on

engine

SERVICE

DATA
AND
SPECIFICATIONS

Type

Firing
order

Rotating
direction

Duty

Air

gap
mm
in

MU

Cap
insulation
resistance

Rotor
head

insulation
resistance
MU

Cap
carbon

point
length
mm
in
D4F4
03
D4F4
04

1
3
4

2

Counterclockwise

70
20
to
40
at

idling

0
2
to
0
4
O

OOS
to
0

016

More
than
50

More
than
50

10
0
39

TRANSISTOR

IGNITION
UNIT

California
models

DESCRIPTION

TRANSISTOR
IGNITION
UNIT

REMOVAL
AND

INSTALLATION

INSPECTION

1
POWER

SUPPLY
WI

RING
AND

BATTERY

CHECK

DESCRIPTION

TRANSISTOR

IGNITION

UNIT

The
transistor

ignition
unit

provides

the

following
functions

L
It

makes
and
breaks
the
electric

current
in

the

primacy
circuit

of
the

ignition
coil
2

CONTINUITY
CHECK

OF
PRIMARY

CIRCUIT

3

PICK
UP

COIL
CONTINUITY
CHECK

4
PICK
UP
COIL
POWER

SIGNAL

PULSE

CHECK

5
TRANSISTOR

IGNITION
UNIT
CHECK
CONTENTS

EE

36

EE

36

EE
37

EE
37

EE
37

2

The

duty
control

circuit
sets
the

rate
of
make

and
break
within

one

cycle
i
e

this

maintains

good

ignition

characteristics
of

engine
from
low

speed
to

high
speed
and
is

equal
to

the

dweU

angle
in

the

conventional

breaker

type
distributor

3

A

preventive
circuit

against
lock

EE
36
EE
36

EE
38

EE
38

EE
39

ing
is

provided
This

cuts
off
the

prilnaCY
electric
current
in

the

ignition

coil
when
the

ignition
switch
is

turned

on
with
the

engine
not

running

Each

component
part
of
this
unit

is

highly
reliable
however

should

any

part
be
found

faulty
the
entire
assem

bly
must
be

replaced

The

ignition
coil
is

an
oil
f1l1ed

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
t

high
voltage
This
causes

stronger

sparks
to

jump
the

spark
plug

gap

The

cap
is
made
of

alkyd
resin

which
offers

high
resistance
to
lectric

arc
and
increased
insulation

The

ignition
coil
and
resistor
should

be
handled

as
a
matched
set

When

high
tension
wire
is

installed

to

ignition
coil
there
should
be

no

clearance
between
their

caps

I
EE354

1

High
tension
wire

2
Rubber

cap

Fig
EE

94
Correcl
installation

of

high

t
Mjon

win

SPECIFICATIONS

Type

Primary
voltage

Spark
gap

Primary
resistance
at
200C
680F

Secondary
resistance

at
200C
680
F
KSl

External

resistor
at20
C

680F
n
Engine
Electrical

System

IGNITION
COIL

California
models

f
ID

@

J

C

ID

I
1W

1
R

bber

cap
for

ignition
coil

2

Secondary
terminal

3

Cap

4

Primary
terminal

5

Spring

6

Secondary
winding

7

Primary
winding

Notes

a
Do

not
disconnect

high
tension

wires
from

spark
plugs
during
en

gine

mnning
California

models

only

b

RoD

up
high
tension

wire
mbber

cap
and
instaD

high
tension
wire
to

ignition
coil

securely
Refer
to

Figure
EE
9S
Non
califomia

models

EE314

8
Side
core

9
Insulator
coil

10
Center
core

11

Segment

12
Case

13
Rubber

cap
Cor
terminal

Fig
EE
93
Sectional
view

of

ignition
coil

Fig
EE

95

Installing
high
tension
wire

Non

California

California
models

models

C6R
618

HS
15
18
CIT

16
STC
9

12
12

more
than
7

0
28
more
than
7

0
28

1
08
to
1
32
0
45
to

0
55

8
24
to

12
4
8
5
to

12
7

1
5
1
3

0
4
0

9
V

mm
in

n

EE
46

DESCRIPTION

INSPECTION

CLEANING
AND
REGAP

DESCRIPTION

The

spark
plugs
are
of
the

conven

tional

type
having
14
mm
0

551
in

threads
The

spark
plug
gaps
are
1
0
to

1
1
mm
0
039
to
0
043
in
on
Cali

fomia
models
and
0
8

to
0
9
mm

0
031
to

0
035
in
on
non
California

models
The

inspection
and

cleaning

should
be
made
every
suitable
mainte

nance

period
If
necessary
replace

Note
All

spark

plugs
installed
on
an

engine
must
be

of
the
same
brand

and
the

same
number
of
heat

range

INSPECTION

L
Remove

spark
plug
wire

by

pulling
on

boot
not
on
wire
itself

2
Remove

spark
plugs

3

Check
electrodes
and
inner

and

outer

porcelains
of

plugs
noting
the

type
of

deposits
and
the

degree
of

electrode
erosion

Refer
to

Figure

EE
96

Normal
Brown
to

grayish
tan
de

posits
and

slight
electrode
wear

indicate
correct

spark
plug
heat

range

Carbon
fouled

Dry
fluffy
carbon

deposits
on
the
insulator
and

electrode
are

usually
caused

by

slow
speed
driving
in

city
weak

ignition
too
rich
fuel
mixture

dirty
air
cleaner
etc

It
is

advisable
to

replace
with

plugs

having
hotter
heat

range

Oil
fouled
Wet
black

deposits
indi

cate
excessive
oil
entrance
into

combustion
chamber

through
worn

rings
and

pistons
or
excessive
clear

ance
between
valve

guides
and

stems
If
the
same
condition
re

mains
after

repair
use
a
hotter

plug
Engine
Electrical

System

SPARK
PLUG

CONTENTS

EE
4B

EE
47

EE
47

EE
47
SERVICE
DATA
AND
SPECIFICATIONS

TROUBLE
DIAGNOSES
AND

CORRECTIONS
EE
4B

Overheating
White
or

light

gray
in

sulator
with
black
or

gray
brown

spots
and
bluish
burnt
electrodes

indicate

engine
overheating
More

over
the

appearance
results
from

incorrect

ignition
timing
loose

Normal

Overheating

EE079

4
After
cleaning
dress
electrodes

with
a
smaU
fine
file
to
flatten
the

surfaces
of
both
center
and
side

electwdes
in

parallel
Set

spark
plug

gap
to

specification

5
InstaU

spark
plugs
and

torque

each

plug
to
L5

to
2
0

kg
m

11
to
14

ft
Ib

6
Connect

spark

plug
wires

CLEANING

AND
REGAP

Clean

spark
plugs
in

a
sand
blast

type
cleaner
Avoid
excessive

blasting

Clean
and
remove
carbon
or
oxide

deposits
but
do
not

wear
away

porcelain
If

deposits
are
too
stubborn

EE
47
spark
plugs
low
fuel

pump
pres

sure

wrong
selection
of
fuel
a

hotter

plug
etc

It
is
advisable
to

replace
with

plugs

having
colder
heat

range

Ir

i

Carbon
fould

Worn

Fig
EE
96

Spark
plug

discard

plugs

After

cleaning
spark
plugs
renew

firing
surface
of
electrodes
with
me

mentioned
aboVe
Then

gap
spark

plugs
to

specified
values
with
a
round

wire
feeler

gauge
All

spark
plugs
new

or
used
should
have
the

gap
checked

and
reset

by
bending
ground
electrode

EEOBO

Fig
EE
97

Setting
park
plug
gap

Engine
Electrical

System

SERVICE
DATA
AND
SPECIFICATIONS

California

models
Non

California

models

For
Canada

except
for

Canada

BP6ES
ll
BP6ES

BPR6ES
Standard

L45PW
ll
L45PW

BP4E
ll
BP5ES
ll
BP4E

BP5ES
BPR4ES

Type
Hot

type

L46PW
ll

L47PW
ll

L46PW
L47PW
BPR5ES

Cold

type
BP7ES
ll

BP7ES

BPR7ES

LMPW
ll
LMPW

1
0
to
l
l
0
8
to
0

9
0
8
to
0
9

Plug

gap
mm

in

0

039
to
0
043
0

031
to
0
D35
0
031
to
0

035

Tightening
torque
kg
m
ft
Ib

I
1
5
to
2

0
11
to
14

TROUBLE

DIAGNOSES

AND

CORRECTIONS

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
wire

from
spark

plug
starting

engine
and

ob

serving
condition
of

spark
that

occurs

between

high
tension

wire
and

spark

plug
terminal

After

checking
this

repair
as

necessary
Note
On
California
models

disc
on

nect
anti

dieseling
solenoid

valve

connector
to

cut
off

supply
of
fuel

to

engine
and

then
observe

the

condition

of

spaIks
while
starter

motor
is

in

operation

Condition
Location

Probable

cause
Corrective
action

No

spark
at
all

Distributor

Faulty
insulation
of
condenser

Non
Cali

Replace

fomia

models

Breakage
of
lead
wire
on
low
tension
side

Repair

Poor
insulation
of

cap
and
rotor
head

Replace

Seized

points
Non
California

models

Repair

Open
pick
up
coil
California
models

Replace

Air

gap
wider
than

specification
Cali

Adjust

fornia

models

Ignition
coil

Wire

breakage
or
short
circuit

of
coil

Replace
with
new
one

High
tension
wire

Wire

coming
off

Repair

Faulty
insulation

Replace

Transistor

ignition
Faulty
transistor

ignition
unit

Replace

unit

California

models

EE
4B