1977 DATSUN PICK-UP length

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

Engine
Electrical

System

ALTERNATOR
TEST

Before

conducting
an

alternator

test
make
sure
th

tthe

battery
is

fully

charged
A

30
V
olt

voltmeter

and
suitable

test

probes
3re

necessary
for
the
test

Set

up
a
test
circuit

as
shown
in
Figure
EE45
and
test

auernator
in

the

manner
indica
ted
in

the
flow

chart

below

1
Disconnect

connectors
at
alternator

2
Connect
A

terminal
to
F

terminal

3
Connect

one

test
probe
from

voltmeter

positive
terminal
to

A
terminal

Connect
the
other
test

probe
to

ground

Make
sure
that
voltmeter

registers
battery
voltage

4

Turn
on

headlights
and

switch
to

High
Beam

5

Start

engine

6
Increase

engine
speed
gradually
until
it
is

approximately
1
100

rpm
and

take
the

voltmeter

reading

Measured
value
Below
12
5
Volts

Alternator
is
in

trouble
remove
and
check
it

for
condition
Measured
value
Over
12
5
Volts

Alternator
is
in

good
condition

Notes

a
Do
Dot
run

engine
at
the

speed
of

more
than
1
100

rpm
while
test
is

being
conducted
on
alternator

b
Do
not
race

engine

i
9
l

IV
I
Battery

EE052
Voltmeter

Fig
EE

45
Testing
alternator

SERVICE
DATA
AND
SPECIFICATIONS

Nominal

rating
V

A
LT138
IB

LTl35
36B
For
air

conditioner

1235

12
38

Negative
Negative

1
000
1

000

28
2
500

30
2
500

35
5

000
38
5
000

2
25

2
25

More
than

7
5
0
295
More
than
7
5
0
295

255

to
345
255

to
345

9
0
to

12
2

9
0
to

12
2

More
than
30
1
181
More
than

30
1
181

EE

19
Type

Ground

polarity

Minimum
revolution

when

generating

14V
with
no
load

rpm

Hot

output
current

Nrpm

Pulley
ratio

Brush

Length

Spring
pressure
mm
in

gr
oz

Slip
ring
outer
diameter
mm

in

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

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

Condition

Spark
length

I

to
2
rnm
0
039

to
0
079
in
Of

irregular

More

than
6
rnm

0
236
in
Engine
Electrical

System

Location
Probable
cause

Distributor
Point

gap
too
wide
Non
California
mo

dels

Oil

on
point
Non
California
models

Burned

points
Non

California
models

Spark

plugs
Spark

plug
gap
too
wide

Too
much
carbon

Broken
neck
of
insulator

Expiration
of

plug
life

Air

gap
too
wide
California
models

Distributor

Transistor

ignition

unit
California

models
Faulty
transistor
ignition
unit
Corrective
action

Correct

Clean

Replace

Correct
or

replace

Clean
or
replace

Replace

Replace

Correct

Replace

2

Engine
rotates
but
does
not
run

smoothly

This

may
be

caused

by
the

ignition
system
or
other

engine
condi
Hons
not

related
to

ignition
Therefore
first
a
complete
inspection
of

ignition
system

should
be

carried
out

Condition

Engine
misses
Location
Probable

cause

Distributor
Dirty
point
Non
California
models

Foreign
mattef
on

pick
up
coil
California

models

Improper
point

gap
Non
California
mo

dels

Impropef
air

gap
California
models

Leak
of

electricity
at

cap
and
rotor
head

Damaged
insulation
of
condenser

Non

California
models

Malfunctioning
contact
arm
Non
Cali

fornia
models

Faulty
contact
arm

spring
Non
Cali

fornia
models

Breakage
of
lead
wire
Non
California

models

Breakage
of

pick
up
coil
lead
wire
Cali

fornia
models

Worn

or
shaky
breaker

plate

Worn
or
shaky
distributor

driving
shaft

Layer
short
circuit
or
inferior

quality

coil
Ignition
coil

High
tension
wire
Deterioration
of
insulation
with
con

sequent
leak
of

electricity

EE
49
Corrective
ac
ion

Clean

Clean

Correct

Correct

Repair
or

replace

Replace

Oil
shaft

Replace

Replace

Replace

Replace
assembly

Replace
assembly

Replace
with

good
one

Replace

CLUTCH

CYLINDER

MASTER

Removal
and

installation

Removal

I

Remove
clcvis

pin
at

push
rod

2

Disconnect

clutch

tube
from

master

cylinder
and
drain
clutch
fluid

3

Remove
bolts

securing
master

Disassembly
and

assembly
CLUTCH

cylinder
to
the
vehicle

and
dismount

master

cylinder

Note
Remove
dust

cover
from
master

cylinder
body
on
the

side
of
driv

er

s
seat

Installation

To
install

reverse
the
order
of

removal

Closely
observe
the

following

instructions

1

Adjust
pedal

height
by

changing

pedal

stopper
length

Disassembly

1

Remove
dust

cover
and

remove

stopper
ring
from

body

2

Remove

push
rod

and

piston
as

sembly

3

Take
off

piston

cups

4

Remove

spiing
seat
from

piston

and
take
off

supply
valve
if

necessary

See

Figure
CL

19

Note
Discard

piston
cup
supply

valve
and

spring

seat
after
removal
Assembly

To

assemble
reverse
the
order
of

disassembly

Closely
observe
the
fol

lowing
instructions

I

Dip
piston
cup
in
brake
fluid

before

installing
Make

sure
that
it
is

correctly
faced
in

position

2

Apply
a

coating
of

brake
fluid
to

cylinder
and

piston
when

assembling

3
Press

piston
into

spring
seat
when

assembling

CL
7
2

Bleed
air

out
of

hydraulic

system

Tightening
torque

Master

cylinder
to

dash

panel

0
8

to
1
2

kg
m

5
8
to
8
7
ft

lb

Clutch
tube

connector
Flare
nut

1
5

to
1
8

kg
m

II
to
13
ft

lb

3

Using
Flare

Nut

Torque
Wrench

GG94310000

tighten
each

connector

to
the

specified

torque

1
Reservoir

cap

2
Reservoir

3
Reservoir
band

4

Cylinder
body

5

Supply
valve

stopper

6
Return

spring

7

Spring
seat

8
Valve
spring

9

Supply
valve
rod

10

Supply
valve

11

Primary
cup

12
Piston

13

Push
rod

14

Secondary

cup

15

Stopper

16

Stopper

ring

17
DU5t
cover

18
Lock
nut

CL265

Fig
CL
19

Exploded
view

of
maater
cylinder

Note

The
clutch
master

cylinder
is

available
in
both
NABCO
make
and

TOKICO
make
There
is
no
inter

changeability
of

repair
kits
or
com

ponent
parts
between

NABCO
and

TOKlCO
makes

When

replacing
the

repair
kit

or

component
parts
ascertain
the

brand
of

the
clutch
IIIBSter

cylinder

body
Be
sure
to
use

parts
of
the

same
make
as
the
former

ones

ST23860000

TM442

Fig
MT
42

l
talling

counte
haft

drive

gear

Available
counter
drive

gear
map
ring

No
Thickness
mm
in

I

2

3
1

4
0
055

1

5
0
059

1
6
0
063

II

TM366

Fig
MT
43

Installing
nap
ring

5
Press
countershaft
front

bearing

onto
countershaft
with
Drift
C

ST22360002
See

Figure
MT
44

ST22360002

KV3
II

00400

TM443

Fig
MT
44
Installing

counte
haft

front
bearing
Manual
Transmission

6

Support
adapter
plate
in

a
vise

with

Setting
Plate

Adapter

ST238
10001
with
mainshaft

facing

down

7
Install

mainshaft
reverse

gear

plain
washer

on
the
rear
of
mainshaft

and
install
mainshaft
nut

Tighten
mainshaft
nut

temporarily

8
Install

counter
reverse

gear
on
the

rear
of

countershaft
and
secure
with

map
ring

Use

snap
ring
to

give
a
minimum

gear
end

play
See

Figure
MT
45

No
Thickness
mm
in

I

2

3
1
4
0
055

1
5
0
059

1

6
0
063

o
TM361

Fig
MT
45

Imtalling
counter
reverse

gear

nap
ring

9
Install
reverse
idler

gear
on
re

verse
idler
shaft

10
With
1st
and
2nd

gears

doubly

engaged
tighten
mainshaft
nut
to
the

converted

torque
Cn
See

Figure

MT
48

using
Wrench
ST22520000

See

Figure
MT
4
7

ST22520000

TM768

Fig
MT
46

Tightening
mainshaft
nut

MTll
Explanation
of
converted

torque

Mainshaft
nut
should
be

tightened

to
14
to
17

kg
m
101
to

123
ft
lb

torque
with

the
aid
of

Wrench

ST22520000
When
doing
so
the

amount
of

torque
to
be

read
on

wrench
needle
should
be
modified

according
to
the

following
formula

L

C

kg
m
14
x
to

L

O
lO

L

17
x

L

0
10

or

L

C
ft
lb

101
x

L
0
33
to

L

123
x

L
0
33

Where

C
Value
read
on
the

torque
wrench

kg
m

ft
lb

L
Effective

length
of

torque

wrench
m
ft

ST22520000

Torque
wrench

Lm
ft
c

h

I

O
IOm

0
33
ft
TM587

Fig
MT
47

Setting
wrench

Example

When
a
0
40

m
1
31
ft

long
tor

que
wrench
is
used
the
Cn
in

Figure
MT
48
will
be
11
2
to
13
6

kg
m
81
to
98
ft
lb

I

Upper
limit
line

I

r

6
1

f
fdl

13
Converted

torque

90

I

Lower

limit
line

80

11

70
10

V
S
s

15

110

15

c

u

c

c

9

S

c

o

C

U
100
14

9

0
2
0
3

1
0
0
4
Manual

Transmission

0
5

0
6

2
0
0
7
0
8
m

2
5
It
1
5

L

Effective

length
of

torque
wrench

Fig
MT
48
CO
1Vert

d

torque

11

Tighten
mainshaft

nut
to

14
0

to
17
0

kg
m
101

to
123

ft
lb

torque
and
stake

mainshaft
nut
to

groove
of
main
shaft

with
a

punch
See

Figure
MT49

TM362

Fig
MT
49

Staking

mai
haft
nut

12
Measure

gear
end

play
and
back

lash

Make
sure
that

they
are
held
within

the

specified
values

For
details
refer

to
the
instructions

under

topic
Inspection
Note
The
main
drive

gear
and
coun

ter

driVe

gear
should
be
handled
as

a
matched

set

When

you
replace
a
main
drive

gear

or
counter

drive

gear
be
sure
to

replace
as
a
set
of

main
drive

gear

and
counter

drive

gear

ShUt
fork
nd

fork
rod

mbly

I

Place
1st
2nd
shift
fork
in

groove
in
1st

2nd

coupling
sleeve

and
slide
1st
2nd
fork
rod

through

adapter
plate
and

1st
2nd
shift

fork

Prior

to

installing
1st
2nd
fork

rod

install

3rd
4th
shift

fork
in

groove
in

3rd
4th

coupling
sleeve

Note
Shift

forks
for
1st
2nd
and

3rd
4th

are
one
and
the

same

parts

Make
sure
that
the

long
end
of
shift

fork
for

lot
2nd
is

placed
on
the

counter

gear
side
and
the

long
end

for
3rd
4th
is
on
the

e

side

MT12
Secure
1st

2nd
fork
rod
to

shift

fork
with

a
new

retaining
pin

2
Install
check

ball
check
ball

spring
and
check

ball

plug
Prior

to

tightening
check
ball

plug

apply

sealant
to
check
ball

plug

Align
notch
in

1st
2nd
fork
rod

with
check
ball

See

Figure
MT
50

TM367

Fig
MT

50

l
talling
1st
2nd

fork
rod

3
Slide

3rd
4th
fork
rod

through

adapter
plate
and
3rd

4th
shift
fork

and
secure
with
a
new

retaining
pin

Note
Prior
to

a

mbling
3rd
4th

fork
rod
install

two
2

interlock

balls
into

dap
er

plat
own
in

Figure
MT
16

4
Install
check
ball
and
check
ball

spring

Apply
sealant
to
check

ball

plug

and
install
it
in

place

Align
notch
in

3rd
4th
fork

rod

with
check
ball

by

sliding
3rd
4th

fork
rod
as

necessary
See
Figure

MT51

TM368

Fig
MT
51
Installing
3rd
4th

fork
rod

5

Place
reverse
shift
fork
in

reverse

idler

gear

Slide
reverse
fork
rod

through
re

verse
shift
fork
and

adapter
plate
and

secure
with
a
new

retaining
pin