automatic transmission DATSUN PICK-UP 1977 Owners Manual

Automatic
Transmission

Trouble
ABCD
EFGH
I
J
KL
MNOP

mnqr
s
t
u
v
w
x

y

Too

sharp
a
shock
in

change
from

1
2
4
5
3

@

l1st
to
2nd

Too

sharp
a
shock
in

change
from

1
2
3
3
5
4

@

2nd
to

3rd

Almost
no
shock
or
clutches

slipping
in

change
from
1st

to
1

2
3
4
6
8
7

5

@
@

2nd

Almost
no
shock
or

slipping
in

@
@
@

change
from
2nd
to
3rd
1
2

3
4
6
8

7
5

Engine
races

extremely

Vehicle

braked

by
gear
change
from

2
1

V
@

1st

to
2nd

Vehicle
braked

by

gear
change
from

3
2
1

2nd
to
3rd

Failure
to

change
gear
from

1
3
4
6

5
2

1
@
@

3rd
to

2nd

Failure
10

change
gear
from
2nd

I
3
4

6
5
2

1
@

to
1st
or
from
3rd
to
lIst

Gear

change
shock
felt

during

f
deceleration

by
releasing
1
2
3
4

5
6

accelerator

pedal

Too

high
a

change
point
from

f

3rd
to

2nd
from
2nd
to
I
2
3
4
5

6

1st

Kickdown
does
not

operate
when

depressing
pedal
in
3rd
within

2
1
4
5
3

@
f

kickdown
vehicle

speed

Kickdown

operates
or

engine
over

runs
when

depressing
pedal
in

1

2
3
5
6
7
4

@
@

3rd

beyond
kickdown
vehicle

speed
limit

Races

extremely
or

slips
in

changing
I

from

Jrd
to
2nd
when
1
2
4
6
5
3

f
@
@
@

depressing

pedal

Failure
to

change
from
3rd
to
nd

I
2
4

51
3

@
j

when

changing
lever
into

2

range

Gear

change
from

2nd
10
1st

or
from
2nd
to
3rd
in
2
I
2
3

range

AT
55

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

TROUBLE
SHOOTING
GUIDE
FOR
3N71B
AUTOMATIC

TRANSMISSION

Order
Test
item

Checking
Oil
level

gauge

2
Downshift
solenoid

3

Manuallinkage

L

4
Inhibitor
switch

5

Engine
idling
rpm

6
Vacuum

pressure
of

vacuum

pipe

7

Operation
in
each

range

8

Creep
of
vehicle

Stall
test
I

Oil

pressure
before

tesling
1

2
Stall
test

3
Oil

pressure
after

testing

Road
test
Slow
acceleration

I

st
2nd

2nd
3rd

2

Quick
acceleration

lst
2nd

2nd
3rd

3

Kick
down

operation

3rd
2nd

or

2nd
1st
Procedure

Check

gauge
for
oil
level
and

leakage
before
and

after
each

test

Check
for
sound
of

operating
solenoid
when

depressing

accelerator

pedal
fully
with

ignition
key
ON

Check

by

shifting
into

P
lR
IN
D
2
and
I

ranges
with
selector
lever

Check

whether
starter

operates
in
N
and
p

ranges
only

and
whether
reverse

lamp
operates
in

R
range
only

Check
whelher

idling
rpm
meet

standard

Check
whether

vacuum

pressure
is

more
than
450

mmHg

in

idling
and
whether
it

decreases
with

increasing
rpm

Check
whether
transmission

engages
positively
by
shifting

N
0
N

2
N

l
I
and
N
R

range

while

idling
with
brake

applied

Check
whether

there
is

any
creep
in
D
2

R

ranges
and

Measure
line

pressures
in
D
2
I
and
R

range
while

idling

Measure

engine

rpm
and
line

pressure
in
D
2
I

and

R

ranges
during
full
throttle

operati
n

Notes

a

Temperature
of

torque
converter
oil
used
in
test
should

be
from
600

to
1000C
1400
to
2120F
i
e

sufficiently

warmed

up
but
not
overheated

b
To
cool
oil

between
each
stall
test
for
D
2
I

and
R

ranges
idle

engine
i
e

rpm
at
about
1
200

rpm
for
more
than
1
minute
in
P

range
Measurement

time
must
not
be
more
than
5
seconds

Same
as
item
I

Check
vehide

speeds
and

engine
cpm
in

shifting
up
Ist

2nd

range
and
2nd
Jo3rd
range
while

running
with
lever
in

D

range
and

engine
vacuum

pressure
of
about
200

I11I1lHg

Same

as
item
1
above

except
with

engine
vacuum
pressure

of
0

mmHg
i

e
in

position
just
before
kickdown

Check
whether
the
kickdown

operates
and
measure
the
time

delays
while

running
at
30
40
50
60
70
km
h
18
25
30

37
43
MPH
in

D3
range

AT

57

Automatic
Transmission

Order
Test
item

4
Shift
down

Dr
O2
0

5

Shift
down

DJ
12
1

6
Shift
down

DJ
2

7
Shift

up

I

12

8
Shift

up
or
down
when

start

iog
in

2

range

9

Parking

Others
Abnormal
shock
oil

leakage
Procedure

Check
vehicle

speeds
and

engine
rpm
in

shifting
down
from

3rd
2nd
I

st

sequentially
while

coasting
with

accelerater

pedal
released
in

D3
range
and

engine
vacuum

pressure
of
about
450

mmHg

Check
for

shifting
down

OJ
12
and

engine
braking
and

further
for

shifting
down

12
I
and

engine
braking
after

shifting
the
lever
into

I

range
with
the
accelerator

pedal

released
and
the

engine
vacuum

pressure
of
0

mmHg
while

driving
at
about
50
km
h

30
MPH
in

OJ
range

Check
for

quick
shifting
down

0
2
and

engine
biaking

after

shifting
the

lever
into
2

range
while

driving
at
about

50
km
h
30
MPH
in

OJ
range

Further
check
for

locking
of
the

transmission
in

2nd

gear

ratio

regardless
of
vehicle

speed

Check
for
failure
of
the
transmission
to
shift

up
during

acceleration
when

starting
in
I

range

Check
the
transmission

for
not

shifting
up
or
down

during

acceleration
or
deceleration
when

starting
in

2

rang

Confirm
that
vehicle
will
not
move
on

grade
when

shifting

to

P

range

Enter
into
record
conditions
observed

during
these
tests

such
as

gear
noise

abnormal
clutch
noise
and

acceleration

performance

AT
58

Automatic
Transmission

SERVICE
DATA
AND
SPECIFICATIONS

General

specifications
AfT

Torque
converter

Type

Stall

torque
ratio
Symmetrica13
element
I

stage

2

phase
torque
converter

2
0
I

Transmission

Type

Control
elements

Multiple
disc
clutch

Band
brake

Multiple
disc
brake

One

way
clutch

Gear
ratio

1st

2nd

3rd

Reverse
3

speed
forward
and

one
speed

reverse
with

planetary
gear
train

2

I

I

I

2

458

1458

1

000

2
182

Selector

positions
P
Park

R

Reverse

N
Neutral
Transmission
is

placed
in

neutral

Output
shaft
is

fIXed

Engine
can
be
started

Backward

running

Transmission
is
in

neutral

Engine
can
be

started

Up
or
downshifts

automatically
to

and
from
I

st
2nd
and

top

Fixed
at
2nd

Fixed
at
low

or
downshifts
from

2nd
o
Drive

2
2nd
lock

I
Lock

up

Oil

pump

Type
Internally
intermeshing
involute

gear
pump

Number
of

pump

Oil
Automatic
transmission
fluid

DEXRON

type

5
5

liters

SUU
s

qt
4Ulmp
qt

Approximately
2
7
liters

2UU
s

qt
2XIrnp

qt

in

torque
converter

Controlled

by
measuring
the

nega

tive

pressure
of
intake
manifold

and
the
revolution
of

output
shaft

Forced
lubrication

by
an
oil

pump

Water
cooled

by
a
circulation

type

auxiliary
cooler

located
at
the

radiator
Capacity

Hydraulic
control

system

Lubrication

system

Cooling
system

AT
59

Specifications
and

adjustment
AfT

Automatic
transmission

assembly

Model
code
number

Torque
converter

assembly

Stamped
mark
on
th

e

TiC

Front
clutch

Number
of
drive

plate

Number
of

driven

plates

Clearance

Thickness
of
retainin

g

plate

Rear

clutch

Number
of

drive

plates

Number
of

driven

plates

Clearance

Thickness
of

retaining
plate

Low
reverse
brake

Number

of
drive

plates

Number
f
driven

pla
es

Clearance

Thickness
of

retaining
plaie

Brake

band

Piston
size

Big
dia

S
all
dia

Control
valve

assembly

Stamped
mark

on
slraine

Governor

assembly

Stamped
mark

on

governor
body
Automatic
Transmission

mOl
in

mm
in

mOl

inJ

mOl
in

mOl

in

mOl
in

mOl
in

AT
60
X2402

16
B

3

3

1
6

to
1
8
0

063
to
0

071

10
6
0
417

10

8
0
42S

11
0
0
433

11
2
0
441

11
4
0
449

11
6
0
4S7

4

4

1

0

to
1
5
0

039
to
0

OS9

4
8

0
189

4

4

0
80
to
1
0S
0

0315
to
0

0413

11
8

0
46S

12

0
0

472

12
2
0
480

12
4

0
488

12

6
0
496

12
8
O
S04

64
2

S2

40
1
57

E

35

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

Automatic
Transmission

SPECIAL
SERVICE
TOOLS

No
Tool
number

tool
name
Description
For

use

on
Reference

page
or

Figure
No

Oil

pressure
gauge

set
3N71B

Fig
AT
11
2

and

3N71A

AfT
ST2S0SS001
Use
for

checking

hydraulic
pressure

SE119

2
ST07870000
Use
for

setting
transmission
3N71

B
Page
AT

36

AfT

Transmission

case
stand

SE120

3
ST2S850000
Use
for

removing
oil

pump
3N7IB

Fig
AT
S6

and

Sliding
hammers

3N71A

J
AfT

JIB

SE121

4
ST2S42000I
Use
for

assemblilJg
or

disassembling
front
and

rear
clutch
3N71B

Fig
AT
79

and

Fig
AT
86

Clutch

spring
3N7lA

compressor
AIT

SE
122

3N71B

Fig
AT
69

and

3N71A

AlT
Torque
wrench
Use
for

tightening
correct

torque

Max
torque
4

6

kg
m
0

33
ft

lb

Drive

angle
3
8

square
S
GG93010000

SE123

AT
62

Automatic
Transmission

Tool
number
For

Reference

No

Description
use

page
or

tool
name
on

Figure
No

6

ST2S490000
Socket
extension

to

connect

torque
wrench
GG93010000
with
3N71B

Fig
AT
69

Socket
extension
W

square
socket
wrench

AIT

V

SE124

7
ST2S160000

Use
for

tightening
correct

torque
3N71B

Fig
AT
107

Torque
driver
Max

torque
1

04

kg
m
90
ft
lb
A
T

Fig
AT
108

and

3N71A

3

SE125

8

HT69860000
Use
for

removing
and

replacing
snap
ring
3N71B

Fig
AT

S9

and

Snap
ring
remover

3N71A

AIT

SE126

9
ST2S320001
Use
for

removing
and

replacing
snap
ring
3N71B

Fig
AT
79

and

Fig
AT
86

Snap
ring
remover

3N71A

AIT

SE305

Hex
head

extension
Use
for

removing
and

installing
one

way
clutch
inner

race
with

torque
wrench

Drive

angle
W

square
and
6
mOl
across
flat
width
3N71B

AIT
Fig
AT
64

Fig
AT

69

Page
AT
42
10
ST2SS70001

SE128

AT
I

Engine
Control

Fuel
Exhaust

Systems

ENGINE

CONTROL
SYSTEM

CONTENTS

DESCRIPTION

REMOVAL
AND

INSTAllATION
INSPECTION

ADJUSTMENT
FE
2

FE
3

DESCRIPTION

The

accelerator
control

system
is
of

flexible

cable

type
so

that
the

linkage
operates
smoothly
and
the

system
is

not
affected

by

engine
vibration

u

l

f
L

4
@

Arrow

B

E
78
mm
3
07
in

T
2
to
4
mm

0
08
to

0
16
in

MUlti

purpose

grease
FE

3

FE
3

The
choke

system
is

automatically

controlled

i

p
@

I
@
@

CV

j

I

Accelerator

pedal
II

Screw

2

Accelerator

pedal
bracket
12

Pedal

stopper
bolt

and

return

spring
13

Kickdown
switch

striker

3
Accelerator

pedal
arm

Automatic
transmission

4

Pedal

stopper
lock

nut

models

only

5
S

pring
clamp
14

Kickdown

switch

6
Lock

nut

Automatic
transmission

7

Adjust
nut

models

only

8
Wire
holder

15
Switch

stopper
nu

t

9

Accelerator
wire

16
Carburetor

10

Accelerator
wire
outer
case

FE

2
FE260

Fig
FE
l
Accelerator
control

sy
t
m