1977 DATSUN PICK-UP charging

DESCRIPTION

MEASUREMENT
OF
REGULATOR

VOLTAGE

ADJUSTMENT

VOLTAGE
REGULATOR

DESCRIPTION

The

regulator
consists

basically
of

a

voltage
regulator
and
a

charge

relay

The
voltage

regulator
has
two
sets
of

contact

points
a
lower
set

and
an

upper
set
to
control
alternator
volt

age
An
armature

plate
placed
between

the
two
sets
of
contacts
moves

upward

or
downward
or
vibrates
The
lower

contacts
when
closed

complete
the

jCV
ID@
@

GJ
I

@

@

@
Engine
Electrical

System

REGULATOR

CONTENTS

EE
20
CHARGING
RELAY

SERVICE

DATA
AND

SPECIFICATIONS

TROUBLE
DIAGNOSES
AND

CORRECTIONS

Including
alternatorl

EE
25
EE
23

EE
24

EE

20

EE

23

EE
23

field
circuit
direct
to

ground
and
the

upper
contacts
when
closed

complete

the
field

circuit
to
ground

through
a

resistance
field
coil
and

produce

alternator

output

The

charge
relay
i
similar
in

construction

to
the

voltage
regulator

When
the

upper
contacts
are
closed

charge
warning
lamp
goes
on
v

1

Charge
relay

2

Voltage
regulator

EE285

Fig
EE
46
View

of
removing
cover

As

regards
the
construction
the

voltage
regulator
is

very
similar
to
the

charge
relay
as
shown
in

Figure
EE47

@

r

J
CD

@

@

@
Q
@
ID@

ID@

J
t

L

T

@
r

b
r
CD

L
@

j
1

g

f

@

@
EEJ97

J
I1Jlccting
spring

2
Y
kt

g
p

3
Armaturc

4
Core

go

5
Low

Sllccd
lnlacl

h
Point

ap

7

High
speed
conlat
t

8
Contact
c
9

3111111
0
118
ill

di

10

41l1I11W
157in
c1ia
few

II

Cuil

12

lock
nut

J3

Adjllslin
screw

14

Adjll
sting
sprin

15
Yoke
9

Adjusting
screw

10
Lock

nut

11
Coil

12
4mm

0
157
in

dia
screw

13
3mm
0
118
in

dla
crew

14
Contact

iet

15

Voltage

cgulatm
contact

a

Cnl1
Tlll
tion
f

lltagl
l

j
llIOltllT
I
Point

gilp

2

Charge
relay
contllct

3
Core

gap

4

ArlllatlJre

5

Connecting

sprin

6
Yoke

gap

7
Yoh

B

Adjusting
pring

b

Construction
of

charge
relay

Fig
EE
47
Structural
vi
w

EE
20

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

Automatic
Transmission

REMOVAL
AND
INSTALLATION

TRANSMISSION
ASSEMBLY

REMOVAL

INSTALLATION

TRANSMISSION

ASSEMBLY

When

dismounting
the
automatic

transmission
from

a
vehicle

pay
at

tention
to
the

following
points

1

Before

dismounting
the
trans

mission

rigidly
inspecl
it

by
aid
of
the

Troubleshooting
Chart
and
dis

mount
it

only
when
considered
to
be

necessary

2
Dismount
the
transmission
with

utmost

care
and

when

mounting

observe
the

tightening

torque
indi

cated
on
another
table
not
to
exert

excessive
force

REMOVAL

In

dismounting
automatic
transmis

sion
from
vehicle

proceed
as
follows

I

Disconnect

battery
ground
cable

from
terminal

2

Disengage
torsion
shaft
from
ac

celerator

linkage

3
Jack

up
vehicle
and

support
its

weight
on

safety
stands
Recommend
a

hydraulic
hoist
or

open
pit
be
utilized

if
available

Make
sure
that

safety
is
insured

4
Remove

propeller
shaft

Note

Plug
up
the

opening
in
the
rear

extension
to

prevent
oil
from

flowing
out

5
Disconnect
front
exhaust
tube

6

Disconnect
selector

range
lever

from
manual
shaft

7

Disconnect
wire

connections
at

inhibitor
switch
CONTENTS

AT
33

AT
33

AT

33
TRANSMISSION
CONTROL
LINKAGE

REMOVAL
AND
INSTALLATION

ADJUSTMENT
AT
35

AT
35

AT
35

8
Disconnect
vacuum
tube

from

vacuum

diaphragm
and
wire

connee

lions

at
downshift
solenoid

9
Disconnect

speedometer
cable

from

rear
extension

10
Disconnect
oil

charging
pipe

II
Disconnect
oil
cooler
inlet
and

outlet
tubes
at
transmission

case

12

Support
engine
by
locating
a

jack
under

oil

pan
with
a
wooden

block
used
between

oil

pan
and

jack

Support
transmission

by
means
of
a

transmission

jack

13
Detach
converter

housing
dust

cover
Remove

bolts

securing
torque

converter
to
drive

plate
See

Figure

AT
4

AT261

Fig
AT
47

Removing
torque
conv
rter

attaching
bolts

Note
Before

removing
torque
con

verter
scribe
match
marks
on

two

parts
so
that

they
may
be

replaced
in
their

original
posi

tions
at

assembly

14
Remove
rear

engine
mount

securing
bolts
and
crossmember

mounting
bolts

15
Remove

starter
motor

16
Remove
bolts
securing
transmis

sion
to

engine
After
removing
these

AT
33
bolts

support
engine
and
transmission

with

jack
and
lower
the

jack
gradually

until
transmission
can
be
removed
and

take
out
transmission
under
the
car

Note

Plug

up
the

opening
such
as
oil

charging
pipe
oil
cooler
tubes

etc

INSTALLATION

Installation
of
automatic
transmis

sion
on
vehicle
is

reverse
order
of

removal
However
observe
the
follow

ing
installation
notes

Drive

plate
runout

Turn
crankshaft
one
full
turn
and

measure
drive

plate
mnou
t
with

indi

cating
finger
of
a
dial

gauge
rested

against
plate
See

Figure
AT
48

Replace
drive

plate
if

in
excess

of

0
5
mm
0

020
in

Maximum

allowable
mnout

0
3

mm
0
012
in

A
T262

Fig
AT
48
MeCJ
uring
drive

plate

runout

2
Installation
of
torque
converter

Line

up
notch
in

torque
converter

with
that
in
oil

pump
Be
extremely

careful
not
to
cause
undue
stresses
in

parts
in

installing

torq
e
converter

See

Figure
AT
49

In

these
cases
the

transmission
must

be

repaired

Notes

a
In

checking
oil

level
use

special

paper
cloth
to
handle
the
level

gauge
and
be
careful
not
to
let
the

scraps
of

paper
and
cloth
stick
to

the

gauge

b
Insert
the

gauge
fully
and
take
it

out

quickly
before

splashing
oil

adheres
to
the

gauge
Then
observe

the
level

c
Use
automatic
transmission
fluid

having
DEXRON
identifications

only
in
the
3N71B
automatic
trans

mission

d

Pay
attention
because
the
oil
to
be

used
differs
from
that
used
in

the

Nissan
Full
Automatic
TranSJTIis

sion
3N71A
Never
mix
the
oils

INSPECTION
AND
REPAIR

OF
OIL
LEAKAGE

When
oil

leakage
takes

place
the

portion
near
the

leakage
is
covered

with
oil

presenting
difficulty
in

detecting
the

spot
Therefore
the

places
where
oil
seals
and

gaskets
are

equipped
are
enumerated
below

11
Converter

housing

Rubber

ring
of
oil

pump
housing

Oil
seal
of
oil

pump
housing

Oil
seal
of

engine
crankshaft

Bolts
of
converter

housing
to
case

2
Trarismission
and
rear
extension

Junction
of
transm
ss
ion

and
rear

extension
J

Oil
cooler
tube
connectors

Oil

pan

Oil

pressure
inspection
holes
Refer

to

Figure
AT
il2

Mounting
portion
of
vacuum
dia

phragm
and
downshift
solenoid

Breather
and
oil

charging
pipe

Speedometer
pinion
sleeve

Oil
se
l
of
rear
extension

To

exactly
locate
the

place
of
oil

leaka
le
proceed
as
follows

Place
the
vehicle
in

a

pit
and

by

sampling
the
leaked
oil
determine
if
it

is
the

torque
converter
oil
The

torque

converter
oil
has
a
color
like
r
d
wine

So
it
is

easily

distinguished
from

engine

oil
or

gear
oil
Automatic
rransmission

Wipe
off
the

leaking
oil
and
dust

and
deiecl
the

spol
of
oil

eakage

l
se

nonflammable

organic
solve
t
s
ch
as

carbon
tetrachloride
for

wiping

Raise

the
oil

tcmperalure
by

op

erating
the

engine
and

shift
the
lever

to
D
to
increase

the
oil

pressure

The

spot
of
oil

lcakage
will
then
be

found
more

easily

Note
As
oil

leakage
from
the
breaih

er
does
not
take

place
except
when

running
at

high
speed
it
is

impos

sible
to
locate
this

leakage
with

vehicle

stationary

CHECKING
ENGINE
IDLING

REVOLUTION

The

engine
idling
revolution
should

be

properly
adjusted

If
the

engine
revolution
is

too
low

the

engine
does
not

operate
smoothly

and
if
too

high
a

strong
shock
or

creep
develops
when

changing
over

from
N
to
D
or

R

CHECKING
AND
ADJUSTING

KICK

DOWN

SWITCH
AND

DOWNSHIFT

SOLENOID

When

the
kickdown

operation
is

not

made

properly
or
the

speed
chang

ing
point
s
too

high
check
the
kick

down
switch
downshift
solenoid
and

wiring
between
them
When
the

igni

li
n

key
is

pqsitioned
a
t

the
I

st

stage

nd
the
accelerator

pedal
is

depressed

deeply
the
switch
contact
should
be

closed
and
the
solenoid
should
click
If

it
does
not
click
it
indicates
a
defect

Then
check
each

part
with
the

testing

instruments
See

Figure
ATl09

d

I

t

AT10S

Fig
AT
109

Downshift
solenoid

Note
Watch
for
oil

leakage
from

transmission
case

AT
4Q
INSPECTION
AND

ADJUSTMENT
OF
MANUAL

LINKAGE

The

adjustmcnt
of

manual

linkage

is

equaUy
important
as

Inspection
of

Oil
Level
for
the
automatic
transmis

sion
Thereforc

great
care
should
be

exercised
because
incorrect

adjustment

will

rcsult
in
the
brcakdown
of
the

transmission

Inspection

Pull
the
selector
lever
toward

you

and
turn
it

as
far
as
P

to
I

range

wherc
clicks
will
be
felt

by
the
hand

This
is
the

detcnt
of
manual
valve
in

the
valve

body
and
indicates
th

correct

position
of
the

lever

Inspect
whether

the

pointer
of

selector
dial

corresponds
to
this

point

and
also
whether
the
lever
comes

in

alignment
with
the

stepping
of

posi

tion

plate
when
it
is
released

Adjustment

This

procedure
can
be

accomplish

ed

by
refcrring
to

page
AT
35

for

Removal
and
Installa
tion

CHECKING
AND

ADJUSTING

INHIBITOR
SWITCH

The
inhibitor
switch

lights
the
re

verse

lamp
in

the

range
R
of
the

transmission

operatio
l
and
also

rotates

the
starter
motor
in
the

ranges
N

and
P

CD

@
b
ell

If

L
t

7
4l

@

1l

j7
@
@

@
dl

AT109

6
Washer

7
Nut

8
Inhibitor
switch

9
Range
select
lever
t
Inhibitor
switch

2
Manual
shaft

3
Washer

4
Nut

5
Manual

plate

Fig
AT
110
Construction

of
inhibitor

switch

Trouble

No
shock
at

change
from
I

to
2

range
or

engine
races

extremely

Failure
to

change
from
3rd
to
2nd

when
shifting
lever
into
I

range

Engine
brake
does
not

upcrate
in

1

range

Gear

change
frum
I

sr
lu

2nd

or
from
2nd
to
3rd
in
I

range

Does
not

change
f

rom

2nd

to
1st
in

range

Large
shock

changing
from
2nd

to
1st
in

range

Vehicle
moves
when

changing

into

P

range
or

parking
gear
does

not

disengage
when
shifted

out
of

P

range

Transmissic
m

overheats

Oil
shoots
out

during
operation

White
smoke
emitted
from
exhaust

pipe

during
operation

Offensive

smell
at
oil

charging
pipe

Transmission

noise
in
p
and
N

ranges

Transmission
noise
in

D
2
I

and
R

ranges
Automatic

Transmission

ABeD
E

F
G
H
I
J
K
L

1M
NO
P

1m
n

q
r
s
t

u
v

Iw
x

y

6
7
5

@
@
I

I
2
3
4
I

I

2
1

57
6

3

@@

@

I

2
4

5
3

@
f

1
2

@

1
2
4567
3

@
2

1
3

@
2
4

I

2

I

3
4

2
6
8
7
5

@@@

Q
@@
@

I
3

5
6
2
7

8
4

@@@
Q
@@

@

1

2

O
G
@@
f
@@

@

1
2

10
I

I

2

0
G
@
@

AT
56

Automatic

Transmission

Engine

Idling
and

stall

revolution

Idling
revolution

Stall

revolution
rpm

rpm
6S0
ai
0

position

2

000
to

2

200

TIghtening
torque

kg
m
ft
lb

Drive

plate
to

crankshaft

Drive

plate
to

torque
converter

Converter

housing
to

engine

Transmission
case
to

converter

housing

Transmission
case
to

rear
extension

Oil

pan
to
transmission

case

Servo

piston
retaine
T

to

transmission
case

Pislon
slem
when

adjuting
band
brake

Piston

stem
lock
nut

One

way
clutch
inner

race

to
transmission

case

Control
valve

body
to

transmission
case

Lower
valve

body
to

upper
valve

body

Side

plat
to

control
valve

body

Nut
for
control
valve

reamer
bolt

Oil
strainer

to
lower

valve

body

Governor

valve

body
to

oil
distribu
tor

Oil

pump
housing
to

oil

pump
cover

Inhibitor
switch
to
transmission

case

Manual
shaft
lock
nut

Oil
cooler

pipe
to
transmission
case

Test

plug
oil

pressure
inspection
hole

Support
actuator

parking
rod

inserting
position
to

rear
extension

I

Oil

charging
pipe
to
case

Dust

cover

to
converter

housing

Selector

range
lever
to
manual
shaft
14

0
to

16
0
101
to

116

4
0
to
5
0

29
to

36

4
0

to
S
O

29
10

36

4
S
to
5
5

33
to

40

2
0
to

S

14
to
18

O
S
to

0
7

4

to
S

O

S
to

0
7
4
to
S

1
2
to
1
5

9
to
11

1
5
to
4
0

I
I

to
29

1
3
to
1

8
9

to
13

0

5S
to
0
75
4
to
S

0
25

to
O
3S

2
to
3

0

25
to

0
35
2
to
3

O

S
to

0
7
4
to
S

0

25
to
0
35

2
to
3

D
S

100
7
4
to
5

0

6
to
0

8
4
to
6

0
5
to

0
7
4
toS

3
0

to
4

0
22

to
29

3
0
to

S
O

22
to

36

I
4to
2
1

10
to
IS

0
8
to
I
1
6
to
8

O
5S
to
0
7S

4
to
S

O
5S
to

0
75
4
to
S

3
0
to
4

0
22
to
29

Turn

back
two

turns
after

tightening

AT
61

DESCRIPTION

Cables
are
covered
with
color

coded

vinyl
for

easy
identification
In

the

wiring
diagram
colors
are
indicated

by

one
or

two

alphabetical
letters

It
is
recommended
that
the

battery

be
disconnected
before

performing

any
electrical
service
other
than

bulb

or
fuse

replacement

In
addition
to
fuses
a
fusible
link

has
been

installed
to

protect
wiring

The
fusible
link
functions
almost
the

same
as
a

fuse

though
its
eharac

teristics

are
slightly
different
than

normal
fuses

CABLE
COLORS

Cable
colors
are

indicated

by
one
or

two

alphabetical
letters

B

Black
Be
Brown

G
Green

L
Blue

Lg
Light

green

R

Red
W
White
Y
Yellow

The
main

cable
is

generally
coded

with

a

single
color
The

others
are

coded
with
a

two
tone
color
as

follows

BW

Black
with
white

stripe

gR

Light
green
with
red

stripe

INSPECTION

Inspect
all

electrical

circuits
refer

ring
to

wiring
or

circuit

diagrams

Circuits

should
be

tested
for
conti

nuity
or

short
circuit

with
a

conven

tional
test

lamp
or

low

reading
volt

meter
Before

inspection
of

circuit

ensure
that

I
Each
electrical

component

part
or

cable
is

securely
fastened
to

its
con

nector
or
terminal

2
Each
connection

is

firmly
in

place

and

free
from
rust
and
dirt

3

No
cable

covering
shows

any

evidence
of
cracks

deterioration

or

other

damage

4

Each
terminal

is
at

a
safe

distance

away
from

any
adjacent
metal

parts

5
Each

cable
is
fastened

to
its

proper
connector
or
terminal
Body
Electrical

System

BODY
ELECTRICAL

WIRING

6

Each

grounding
bolt
is

firmly

pbnted

7

Wiring
is

kept
away
from

any

adjacent
parts
with

sharp
edges
or

high

temperature
parts
such

as
exhaust

pipe

8

Wiring
is

kept
away
from

any

rotating
or

working
parts
fan

pulley

fan
belt
etc

9

Cables
between
ftxed

portions

and

moving
parts
are

long
enough
to

withstand
shocks
and

vibratory
forces

Notes

a
Before

starting
to

inspect
and

repair

any
part
of
electrical

system
or

other

parts
which

may
lead
to
a

short
circuit

disconnect
cables
at

battery
terminals
as
follows

Disconnect

cable
at

negative

terminal

and
then
disconnect
cable

at

positive
terminal

Before

connecting
cables
to

battery

terminal
be
sure
to
clean
terminals

with
a

rag
Fasten

cable
at

positive

terminal
and
then

ground
cable

at

negative
terminal

Apply

grease
to

top
of
these

terminals
to

prevent
rust
from

developing
on

them

b
Never

use
a

screwdriver
or
senrice

tool
to
conduct

a

continuity
test

Use
test
leads

c
Never

ground
an

open
circuit
or

circuits
under
no
load
Use

a
test

lamp
12V
3W

or
circuit
tester
as
a

load

FUSE
AND

FUSIBLE

LINK

DESCRIPTION

The
fuse
and
fusible
link

are

protec

tive

devices
used
in

an
electrical
cir

cuit

When
current

increases

beyond

rated

amperage
fusible
metal

melts

and

the

circuit
is

broken

BE
2
MAINTENANCE

INSTRUCTIONS

Fuse

The
fuse

block
is
installed

under

the
instrument

panel
on
the
left

hand

drive

vehicle

BE848A

Fig
BE
1

Fuse
block

When
for
one
reason

or
another

fuse

has
melted
use

systematic
pro

cedure
to
check
and
eliminate
cause
of

problem
before

installing
new
fuse

Notes

a
If
fuse
is

blown
be
sure
to
elimi

nate
cause
of

problem
before
in

stalling
new
fuse

b
Use

fuse
of

specified

rating
Never

use
fuse
of
more
than

specified

rating

Co

Check
condition
of

fuse
holders
If

much

rust
or
dirt
is
found

thereon

clean

metal

parts
with
fine

grained

sandpaper
until

proper
metal
to

metal
contact
is
made

Poor

contact
in

any
fuse
holder
will

often
lead
to

voltage
drop
or

heating
in
the
circuit
and
could

result
in

improper
circuit

operation

Fusible

link

Fusible
link

protects

lighting

starting
charging
and

accessory
cir

cuits

Condition

Headiamps
dim

Headlamp
in

only
one

side

lights

TURN
SIGNAL
LAMP

Condition

Turn

signals
do

not

operate

Flashing
cycle
is

too
slow

Pilot

lamp
does

not

go
out
or

too
fast

Flashing
cycle
is

irregular
Body
Electrical

System

Probable
cause

Partly
discharged
or

faulty
battery

Faulty
charging
system

Poor

ground
or
loose
connection

Burnt

sealed
beams

Loose

headlamp
connection

Damaged
sealed
beam

Probable
cause

Burnt
fuse

Loose
connection
or

open
circuit

Faulty
flasher
unit

Faulty
turn

signal
switch

Bulbs

having
wattage
other
than

specified

wattage
are
used

Burnt

bulbs

Loose

connection

Inoperative
flasher
unit

Burnt
bulb

Loose

connection

Bulb

having
wattage
other
than

specified

wa

ttage
is
used

TAIL
LAMP
STOP
LAMP
AND
BACK
UP
LAMP

Condition

Both

right
and
left

lamps
do
not

light

Lamp
in

only
one
side

lights
Probable
cause

Burnt
fuse

Inoperative
stop
lamp
switch

Falllty
back

up
lamp
switch

Loose
connection
or

open
circuit

Burnt
bulb

Loose
bulb

BE13
Corrective
action

Measure

specific
gravity
of

electrolyte
and

recharge
or

replace
battery
if

necessary

Measure

voltage
at

headlamp
terminals

If
it
is
less
than
12
8V
check

charging

system
for

proper

operation

Clean
and
or

tighten

Replace

Repair

Replace

Corrective
action

Correct
cause

and

replace

Check

wiring
and
or

repair
connection

Replace

Conduct

continuity
test
and

replace
if

neces

sary

Replace
with

specified
one

Replace

Repair

Replace

Replace

Repair

Replace
with

specified
one

Corrective
action

Correct
cause
and

replace

Conduct

continuity
test
and

replace
if
neces

sary

Conduct

continuity
test
and

replace
if
neces

sary

Check

wiring
and
or

repair
connection

Replace

Repair
lamp
socket