1977 DATSUN PICK-UP oil type

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

Manual

Transmission

4
SPEED

TRANSMISSION
TYPE

F4W71B

CONTENTS

DESCRIPTION

REMOVAL

DISASSEMBL
Y

TRANSMISSION
CASE

DISASSEMBLY

D

ISASSEMBL
Y
OF
GEAR

ASSEMBLY

REAR

EXTENSION

DISASSEMBLY

ADAPTER

PLATE

DISASSEMBLY

INSPECTION

TRANSMISSION

CASE
AND

REAR

EXTENSION
HOUSING

BEARING
GEARS
AND
SHAFTS

BAULK
RING

Oil

SEAL

ASSEMBL
Y

FRONT

COVER
ASSEMBLY

REAR

EXTENSION
ASSEMBLY

ADAPTER

PLATE

ASSEMBLY

GEAR

ASSEMBLY

TRANSMISSION

ASSEMBLY

INSTALLATION
MT
2

MT
4

MT
4

MT
4

MT
5

MT
B

MT
8

MT

8

MT
B

MT
8
MT
8

MT
9

MT

9

MT
9

MT
9

MT
9

MT
9

MT
9

MT13

MT14

DESCRIPTION

pUshed
the
inner

teeth
of
the

coupling

sleeve
slide
over
the

synchronizer
hub

and
mesh
with

the
outer
teeth

which

are

provided
on
the
mainshaft

gear

The

synchronizer
hub
is
fitted
to

the
mainshaft

by

splines
so
the
main

shaft

gear
turns
together
with
the

mainshaft

The
baulk

ring
serves
to

synchro

nile

the

coupling
sleeve
and
mainshaft

gear

Placing
the
control
lever
in
reverse

position
brings
the
reverse
idler

gear

into

mesh
with
mainshaft
reverse

gear
The
transmission
is
of
a
4

speed

forward

fully
synchronized
constant

mesh

type
that

uses
helical

gears

The

reverse

gear
is
ofa

sliding
mesh

type
using
spur
gears

In
construction
the

main
drive

gear

is
meshed
with
the

counter
drive

gear

which
is

keyed
to

the
countershaft

The
forward

speed

gears
on
the

coun

tershaft

are
in

constant
mesh
with
the

mainshaft

gears
which
ride
on
the

mainshaft

freely
through
the
needle

bearing
When

shifting
is

accom
The
transmission

assembly
consists

of
three
main

parts
a

transmission

case
with
clutch

housing

adapter
plate

to
which
an

gears
and
shafts
are

installed
and
rear
extension

The
cast
iron

adapter
plate

supports

the
mainshaft
countershaft

reverse

idler
shaft
and
three
fork
rods
and

bolted

at
the
front

to
the

transmission

case
and
at
the
rear
to
the
rear

extension

by
means
of

through
bolts

By
removing
these

through
bolts
all

gears
and
shafts
are

stripped

e

TM

858

1

Front
cover

2
Transmission
case

3

Adapter
plate

4

Bearing
retainer

5

Rear
extension

hOUsing

Fig
MT
1
F4W71B
lrammiasion
case

compon
nt

MT
2

5

Apply
a

light
coat

of
multi

purpose
grease
to

withdrawal
lever

release

bearing
and

bearing
sleeve
in

stall
them
on
clutch

housing

After

connecting
them

with
holder

spring
instaU
dust

cover
on
clutch

housing

6
Install
control
lever

temporarily

and

shift
control

lever

through
all

gears
to
make

sure

that

gears

opera
Ie

smoothly

Note
Install

drain

plug
and
filler

plug

ith
sealant
in

place
Manual

Transmission

INSTALLATION

Install
the
transmission
in
the
reo

verse
order
uf
removal

paying
atten

tion

to
the

following

points

1
Before

installing
dean

mating

surfaces
of

engine
rear

plate
and

trans

mission
case

2

Before

installing
lightly
apply

grease
to

spline
parts
of
clutch
disc

and
main
drive

gear

3

Tighten
bolts

securing
trans

mission

to

engine
to

specifications
See

Figure
MT
55

5
SPEED
TRANSMISSION

TYPE

DESCRIPTION

REMOVAL

DISASSEMBL
Y

TRANSMISSION
CASE
DISASSEMBLY

DISASSEMBL
Y
OF
GEAR

ASSEMBLY

REAR

EXTENSION
DISASSEMBLY

ADAPTER
PLATE

DISASSEMBLY

INSPECTION

TRANSMISSION
CASE
AND
REAR

EXTENSION
HOUSING

DESCRIPTION

The
transmission

is
of
a
5

speed

forward
with
overdrive
4

OD

speed

fully
synchronized
constant

mesh

type
that

uses
helical

gears

The
5

speed
transmission
covered
in

this
section
is

similar
in

all

respects
to

the
4

speed
transmission

type

F4W71B
stated

previously
except
the
CONTENTS

MT14

MT17

MT17

MT17

MT17

MT18

MT19

MT19
4
4

to
5
9

kg
m

32
to
43
ft
Ib

1

0
9
to
1
2

kg
m

7
to
9
rt
lb
TM773

Fig
MT
55

Tightening
torque

4
Remove
filler

plug
and
fIll
trans

mission
with
recommended

gear
oil

to

the
level
of
the

plug
hole

Approxi

mately
I
7

liters
3

pt
3

pt

FS5W71B

BEARING

GEARS

AND
SHAFTS

BAULK

RING

OIL

SEAL

ASSEMBL
Y

FRONT
COVER
ASSEMBLY

REAR

EXTENSION

ASSEMBLY

GEAR

ASSEMBLY

TRANSMISSION
ASSEMBLY

INSTALLATION
MT19

overdrive

position
of
it

The

overdrive

gear
rides
on
the

mainshaft

freely
through
the

needle

roller

bearing
and
counter

overdrive

gear
is
fitted
to
the

countershaft

by

splines

The
overdrive

synchronizer
system

is

on
the
mainshaft
rear
side

MT14
MT19

MT19

MT19

MT19

MT19

MT19

MT19

MT19

MT

20

MT20

Placing
the
control
lever
in

over

drive

position
brings
the
reverse
OD

coupling
sleeve
reverse

gear
on
main

shaft
into
mesh
with
overdrive
clutch

gear
The
reverse
OD

synchronizer

hub
is

fItted

to
the
mainshaft

by

splines
so
the
overdrive

gear
on
main

shaft

turns

together
with
the
main

shaft