service DATSUN PICK-UP 1977 Workshop Manual

DATSUN

PICK
UP

MODEL

620
SERIES

LNISSAN
I

NISSAN
MOTOR
CO
LTD

TOKYO
JAPAN
SECTION

CL

CLUTCH

CLUTCH

CL
2

CLUTCH
CONTROL
CL
5

SERVICE
DATA
AND

CL
9

SPECIFICATIONS

TROUBLE

DIAGNOSES
AND

CLIO

CORRECTIONS

SPECIAL
SERVICE

TOOL
CL12

Inspection

Note
To
clean
or
wash
all

parts
of

master

cylinder

operating
cylinder

and

piping
clean
brake
fluid
must

be
used
Never
use
minera10ils
llUch

as

gasoline
and
kerosene
It

will

ruin
the
rubber

parts
of
the

hydrau

lic

system

I

Check
cylinder
and

piston
for

uneven
wear
or

damage
and
if
neces

sary
replace

2
If
the
clearance
between

cylinder

and

piston
is

more
than

0
15
mm

0
0059
in

replace
cylinder

3

Renew

piston
cup
when
dis

assembled
It
must
also
be

replaced

when
wear
or
deformation
due
to

fatigue
or

damage
is

found

4

Damaged
dust
cover
oil
reservoir

or

cap
should
be

replaced

Return

spring
and
valve

spring
must

also
be

replaced
when

they
are
broken

or
weak

5

Replace
clutch
hose
and
tube
if

any
abnormal

sign
of

damage
or
de

fro

ti

n
is
found

OPERATING

CYLINDER

Removal
and

installation

Removal

1

Detach
clutch
hose
from

operat

ing
cylinder

2
Remove
two
bolts

securing
op

erating
cylinder
to
clutch

housing

Installation

Install

in
the
reverse
order
of
re

moval

Observe
the

following
instructions

Bleed
air

thoroughly
from
clutch

hydraulic
system

2
Do
not

install
return

spring
or

clutch
will

not
be

disengaged

properly

Tightening
torque

Operating
cylinder
securing
bolt

2
5
to
3
5

kg
m

18
to
25
ft
lb

Bleeder
screw

0
7
to
0
9

kg
m
5
1

to
6
5
ft
Ib

Clutch
hose
connector

1
7
to

2
0

kg
m
12
to
14
ft

b
CLUTCH

Disassembly
and

assembly

Disassembly

1
Remove

push
rod
with
dust

cover

2
Remove

piston
assembly
and

pis

ton

spring

3
Remove

bleeder
screw

1
6

Cl11B

5

Piston

cup

6

Operating
cylinder

7
Bleeder
screw
1

Push
rod

2
Dust
cover

3
Piston

spring

4

Piston

Fig
CL
20

Exploded
view

of

operating
cyUnder

Assembly

Assemble
in
the

reverse
order
of

disassembly
Closely
observe
the
fol

lowing
instructions

1

Prior
to

assembly

dip
piston
cup

in

clean
brake
fluid

When

installing
cup
pay
particular

attention
to
its
direction

2

Dip
cylinder
and

piston
in
clean

brake
fluid
before

assembly

Notes

a
Be

sure
to
install

piston
assembly

with

piston
spring
in

place

b
The
clutch

operating
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

TOKICO
makes

When

replacing
the

repair
kit
or

component
parts
ascertain
the

brand
of
the
clutch

operating
cyl

inder

bndy
Be
sure
to
use

parts
of

the

same
make

as
the
former
ones

Inspection

Visually

inspect
all
disassembled

parts
replacing
those
found
worn
or

rl

Q
damaged
too

badly

beyond
speci

fications

BLEEDING
CLUTCH

SYSTEM

The

hydraulic
clutch

system
must

be
bled
whenever
clutch
line
has
been

disconnected
or
air

has
entered
it

When

pedal
action
has
a

spongy

feeling
it
is
an
indication
that
air
has

entered
the
system

Bleeding
clutch

system
is

an
es

sential

part
of

regular
clutch
service

I

Remove
reservoir

cap
and

top
up

with
recommended
brake
fluid

2

Thoroughly
clean
mud
and
dust

from
bleeder
screw
of

operating
cyl

inder
so
that
outlet
hole
is

free
from

any
foreign
rnaterial
Install
bleeder

hose

vinyl
hose
on
bleeder
screw

Place
the
other
end
of
it
in

a
clean

container

3
Have
a
co
worker

depress
clutch

pedal
two
or

three
times
With
clu
tch

pedal
depressed
fully
loosen
bleeder

screw
to
bleed
air
out
of
clutch

sys

tern

4
Close
bleeder
screw

quickly
as

clutch

pedal
is

on
down
stroke

5
Allow
clutch

pedal
to
return

slowly
with
bleeder
screw
closed

6

Repeat
steps
4
and
5
until

no
air

bubble
shows
in

the

vinyl
hose

7

Operate
clutch
several
times

then
check
connections
for
external

hydraulic
leaks

Notes

a
Brake
fluid

containing
air
is
white

and
has
visible
air
bubbles

b
Brake
fluid

containing
no
air
runs

out
of
bleeder
screw
in
a
solid

stream
without
air
bubble

c

Pay
close
attention
to
clutch
fluid

level
in
reservoir

during

bleeding

operation

d
Do
not

reuse
brake
fluid
drained

during
bleeding
operation

e
Exercise
care
not
to

splash
brake

fluid

on
exterior
fInish
as
it
will

damage
the

paint

f
Pour
brake
fluid
into
reservoir

up

to

specifIed
level

CLUTCH

SERVICE

DATA
AND

SPECIFICATIONS

Clutch
cover

Clu
tch

cover

type

Diaphragm
spring
to

flywheel
distance

Unevenness
of

diaphragm
spring
toe

height

Full
load

Out
of
flatness
of

pressure
plate

Allowable

refacing
limit
of

pressure
plate

Clutch
disc

Facing
size

Outer
dia
x
inside
dia
x
thickness

Thickness
of
disc

assembly

Free

Compressed

Number
of
torsion

springs

Allowable
minimum

depth
of

rivet

head
from
surface

Allowable

facing
run
out

Allowable
free

play
of

spline

at
the
outer

edge
of
disc

Clutch

pedal

Pedal

height

Play
at

clevis

pin

Full

stroke

Clutch
master

cylinder

Dia
of
master

cylinder

Allowable
maximum
clearance

between

cylinder
and

piston

Clutch

operating
cylinder

Dia
of

operating
cylinder

Tightening
torque

Clutch

assembly
to

flywheel
securing
bolt

Pedal

installation
bolt
Fulcrum

pin

Pedal

stopper
lock
nut

Push

rod
lock

nut

Master

cylinder
to
dash

panel
securing
bolt

Clutch

tube
connector
Flare
nut

Clutch

hose
connector

Operating
cylinder
to

clutch

housing
securing

bolt

Bleeder
screw
mm
in

mm
in

kg

Qb

mm
in

mm
in
Diaphragm
C225S

33

to
35
1
23

to
1
38

less
than
0
5

0
020

400

882

0
1

0
004

1

0
0
040

mm
in
225
x

150
x
3
5
8

86
x

5
91
x
0

138

mm
in

mm
in
8
3
to

8
9
0
327
to
0

350

7

6
to
8
0
0
299

to
0
315

6

0
3
0
012

0
5

0
020

0
4
0
016
mm
in

mm
in

mm
in

mm
in

153
6
02

mm
in
I

to
3

0
039

to
0
118

mm
in
117

to
123
4

61
to
4
84

mm
in

15

87
5
8

mm
in

0
15

0
0059

mm
in

19

05

Yo

kg
m
ft
lb
1

5
to
2

2
lito

16

kg
m
ft

Ib

1
9
to
2
4

14
to
17

kg
m
ft
b
0

8
to
1
2
5

8
to
8
7

kg
m

ft
lb

0
8
to

1
2
5
8
to
8
7

kg
m
ft
Ib
0
8
to
1
2
5
8
to
8

7

kg
m
ft
lb

1
5
to

1
8
11
to

13

kg
m
ft
lb

1
7
to
2
0
12
to
14

kg
m
ft
lb

2
5
to
3
5
18
to
25

kg
m
ft
Ib

0
7
to
0
9
5
1

to
6
5

CL
9

CLUTCH

TROUBLE
DIAGNOSES
AND
CORRECTIONS

Condition

Probable
cause
and

testing

Clutch

slips
Corrective
action

Slipping
of
the

clutch

may
be

noticeable
when

any
of
the

following
symptoms
is

encountered

during
operation

I
Vehicle
will

not

respond
to

engine

speed
during
acceleration

2
Insufficient
vehicle

speed

3
Lack
of

power
during
uphill
driving

Some
of
the

above
conditions
are
also

experienced
when

engine

problem
is

oc

urring
First

de
tennine
whether

engine
or
clutch
is

causing
the

problem

If

slipping
clutch
is

left
unheeded
wear
and
or

overheating
will
occur
on
clutch

facing
until
it
is

no

longer
serviceable

TO
TEST
FOR
SLIPPING
CLlJfCH

proceed
as
follows

During
upgrade
travelling
run

engine
at

about
40
to
50
km

h
25
to
31

MPH
with

gear
shift

lever
in

3rd

speed
position
shift
into

highest
gear
and
at
the
same
time

rev

up
engine
If
clutch

is

slipping
vehicle
will
not

readily

respond
to

depression
of
accelerator

pedal

Clutch

facing
worn

excessively

Oil
or

grease
on
clutch

facing

W

r
d
clut
h
cov
r

pressure
plat
Replace

Replace

tpa
o
e
lace

Dragging
clutch
is

particularly
noticeable
when

shifting
gears
especially
into

low

gear

TO
TEST
FOR
DRAGGING
CLlJfCH

proceed
as
follows

I
Start

engine
Disengage
clutch
Shift
into

reverse

gear
and
then
into
Neutral

Gradually

increase

engine
speed
and

again
shift
into
reverse

gear
If
clutch
is

dragging
gear
grating

is

heard
when

shifting
from
Neutral
into

Reverse
Clutch

drags

2

Stop
engine
and
shift

gear
Conduct
this
test
at
each

gear
position

3
Gears

are
smoothly
shifted
in

step
2
but

drag
when

shifting
to
1st

speed
position
at

idling

a
If

dragging
is
encountered
at
the
end
of

shifting
check
condition
of

synchro

mechanism
in
transmission

b
If

dragging
is
encountered
at
the

beginning
of

shifting
proceed
to

step
4

below

4
Push

change
lever
toward
Reverse
side

depress
pedal
to
check
for
free
travel

a

If

pedal
can
be

depressed
further
check
clutch
condition

b
If

pedal
cannot
be

depressed
further

proceed
to

step
5
below

5
Check
clutch
control

pedal
height
pedal
free
travel
withdrawal
lever

play
etc

If
no
abnonnal

condition
exists
and
if

pedal
cannot
be

depressed
further
check
clutch

condition

Clutch
disc
runout
or

warped

Wear

or
rust

on
hub

splines
in
clutch
disc

Diaphragm
spring
toe

height
out
of
ad

justment
or
toe

tip
worn

Worn
or

improperly
installed

parts

CL10
Repair
or

replace

Clean
and
lubricate
with

grease
or

replace

Adjust
or

replace

Repair
or

replace

Cl
Ul
CFf

SPECIAL
SERVICE
TOOLS

Tool
number

For
Reference

No

Description
use
page
or

tool
name

on

Figure
No

Unit
mm
in

ST20050010
620

Fig
CL
12

Base

plate

00
B210

710

610

y
S30

2
ST20050051

Set
bolt

SE002

q

3
ST20050
100

Distance

@

piece
7
8
mm

0
31
in

@1
@J

SEOQ3

4
ST20050240
620

Fig
CL
13

Diaphragm
B210

adjusting
710

wrench
610

S30

SE032

5
KV30100200

Clutch

aligning
bar
This

tool
is

used
to

conduct
disc

centeril

g
by

inserting
the
tool

into

pilot
bush
in

flywheel
when

installing
clutch

assembly
to

flywheel
620

710

610

S30
Fig
CL
2

Fig
CL
3

SEaOl

6
STl6610001

Pilot

bushing

puller
Fig
CL
6
620

710

610

S30

SE191

CL
12

DATSUN
PICK

UP

MODEL
620

SERIES

I
NIS

J

NISSAN
MOTOR
CO
LTD

TOKYO
JAPAN
SECTION
MT

MANUAL

TRANSMISSION

4
SPEEo
TRANSMISSION

MT
2

TYPE

F4W71
B

5
SPEED

TRANSMISSION

MT
14

TYPE

FS5W71
B

SERVICE
DATA
AND

MT
21

SPECIFICATIONS

TROUBLE
DIAGNOSES
AND

MT
23

toRRECTloNS

SPECIAL
SERVICE
TOOLS

MT
24

Manual
Transmission

SERVICE
DATA
AND
SPECIFICATIONS

GENERAL
SPECIFICATIONS

Transmission

type
F4W71B
FS5W71B

Synchromesh

type
Warner
1st
to
4th
Warner
5th
Servo

Shift

type
1
3

T

i
i

2
4
R
1
3
5

II

1

2

4
R

Gear
ratio

1st

2nd

3rd

4th

5th

Reverse
3
592

2
246

1
415

1

000

3
657
3
321

2
077

1
308

1
000

0
864

3
382

Final

gear
ratio
4
375
4
375

Speedometer
gear
ratio
20
6

I

7
3
3
20
6

2
0
4X
3
f

Oil

capacity
US

pt
Imp
pt

MT
21

No
Tool
number

tool
name

ST23540000

Fork
rod

pin

punch

2
ST22360002

Drift
C

3
ST23800000

Transmission

adapter

4
ST238
10001

Setting
plate

adapter
Manual
Transmission

SPECIAL
SERVICE
TOOLS

Description

Unit

mm
in

For
removal
of
fork
rod

retaining
pin

L

i
150
5
91

10
0
39
dia

For

assembly
of
counter
drive

bearing

oOler
dia
32
1
26

inner
dia
23
0
91
SE034

For

assembly
of
main

bearing

480

18
90

outer
dia
44

1
73

inner
dia
31
1
22
SE037

For

setting
adapter
plate
in
a
vise

SE132

74
2

91

MT
24
For

use

on
Reference

page
or

Figure
No

All

Fig
MT
15

models

llBT
M

Fig
MT
44

FS5W

63A

All

Page
MT
1O

models

71BT
M

Fig
MT
14

Fig
MT
15

Fig
MT
45

DATSUN
PICK
UP

MODEL
620
SERIES

I
NISSAN

I

NISSAN
MOTOR
CO
LTD

TOKYO
JAPAN
SECTION
AT

j

AUTOMATIC
L

TRANSMlsSIO
N

I

I

DESCRIPTION

HYDRAULIC

CONTROL
SYSTEM

REMOVAL
AND
INSTALLATION

MAJOR
REPAIR

OPERATION

TROUBLLDIAGNOSES
AND

ADJUSTMENT

SERVICE
DATA
AND

SPECIFICATIONS

I
SPECIAL
SERVICE

TOOLS
At
2

AT
4

AT

33

AT
36

AHD

AT

59

AT

62

The
model
3N7l
B
automatic

trans

mission
is

a

fully
automatic

unit
con

sisting
primarily
of
3
element

hydrau

lic

torque
converter
and

two

planetary

gear
sets
Two

multiple
disc
clutches
a

multiple
disc
brake
a
band
brake
and

a
one

way

sprag
clutch

provide
the

friction
elements

required
to
obtain

the
desir
d
function
of
lhe
two

plane

tary
gear
sets

The

two

planetary
gear
sets

give

three
forward
ratios

and
one
reverse

Changing
of
the

gear
ratios
is

fully

automatic
in
relation
to
vehicle

speed

and

engine
torque
input
V

chide

speed

and

engine
manifold
vacuum

signals

are

constantly
fed
to
the

transmission

to

provide
the

proper
gear
ralio
for

maximum

efficiency
and

performance

at
all
throttle

openings

The
model
3N71
B
has
six

selector

1

9sition
LP
R

N
D
2
1

I

Park

position
positively
locks

the

output
shaft
to

the
transmission

case

by
means
of
a

locking

pawl
to

prevent
the
vehicle
from

rolling
in

either
direction

This

position
should
be

selected

whenever
the
driver
leaves
Ihe
vehicle

Thc

engine

may
be
slarted
in
Park

position

R
Reverse

range
enables
the

vehicle
to
be

operated
in

a
reverse

direction

N
Neutral

position
enables
the

engine
to

be
started
and
run

without

driving
the
vehicle

0
Drive

range
is
used

for
all

normal

driving
conditions

Drive

range
has
three

gear
ratios

from
the

starting
ratio

to
direct
drive
Automatic
Transmission

DESCRIPTION

2

2

range
provides

performance

for

driving
on

slippery
surfaces

2

range
can
also
be
used
for

engine

braking

2

range
can
be
selected
at

any

vehicle

speed
and

prevents
the
trans

mission
from

shifting
out
of

second

gear

I
I

range
can
be

selected
at

any
vehicle

speed
and
the
transmission

will
shift
to

second

gear
and
remain
in

second
until
v

hicle

speed
is
reduced

10

approximately
40
to
50

kmfh
25

to
30
MPH

I

range
position
prevents
the

transmission
from

shifting
out
of
low

gear
This
is

particularly
beneficial
for

maintaining
maximum

engin
braking

when

continuous
low

gear
operation
is

desirable

The

torque
converter

assembly
is
of

welded

construction
and
can

nOlbe

disassembled

for
service

FLUID
RECOMMENDATION

Use
automatic
transmission

fluid

having
DEXRON
identifications

only
in
the
3N71
B

automatic
transmis

sion

IDENTIFICATioN
NUMBER

Stamped

position

The

plate
is

attached
to
the

right

hand

side
of
transmission
case

as

shown
io

Figure
AT

I

AT
2
AT344

Fig
AT
I

Identification
number

Identification

of
number

Arrangements

See
below

Model
code

JAPAN

AUTOMATIC

0J
TRANSMISSION
CO
LTD

I
MODEL
X2402

I

J
I
NO

4912345

I

Unit
number

Number

designation

4
9

I

234
5

L

Serial

production

number
for

the
month

Month
of

production

X

Oct
Y

Nov
Z
Dec

last

figure
denoting

the

year
A
D