1979 DATSUN 210 torque

TRANSMISSION
ASSEMBLY

Transmission
case

assembly

r

I
Remove

adapter
plate
with

gear

assembly
from

Adapter
Setting
Plate

KV32100300

2

Clean

mating
surfaces
of

adapter

plate
and
transmission
case

Apply
sealant
to

mating
surfaces
of

adapter
plate
and
transmission

case

3
Install
counter

gear
tluust
washer

selected

previously

Note

a

Apply
grease
to

sliding
surface
of

thrust
washer

b
When

installing
thrust
washer
note

the

front
and
r
ar
directions

Front
Oil

groove
side
Rear
Thrust
side

TM727

Fig
MT
127
Counter
Gear
Thru
t

Wa
her

4
Place
wooden

plate
of
more
than

20
mm
0

79
in
thick
under
transmis

sion
case
to

make
it

level

Slide
transmission
case
onto

adapter
plate
by
lightly
tapping
with
a

soft
hammer
until
case
bears

against

adapter
plate
and
be

sure
to
line

up

dowel

pin

Carefully
install
main
drive

bearing

and
counter

gear
front

needle

bearing

Make

certain
that
mainshaft

rotates

freely

Wooden

block

TM252A

Fig
MT
128
Installing
Transmis
ion

Ca
e
Manual
rransmission

5

Fit
main
drive

bearing
snap
ring

to

groove
in
main
drive

bearing
with

snap
ring
pliers

Note

Make
sure

sno

p
ring
fits
in

groove

Fig
MT

129

Fitting
Main
Drive

flearing
Snap
Ring

ReBr
extension

assembly

I

Clean

I
lating
surfaces
of

adapter

plate
and

rcar
extension

Apply
sealant
to

mating
surfaces
of

adapter
plate
a
itd

rear
extension

2

Assemble
rear
extension

assembly

as
follows

q
Set
fork
rod
at

5th

position

2
P

sition

striking
rod

at
Neutral

position
turn

striking
guide
clockwise

and
then

set

striking
lever
and
shift

arm
as
shown
in

Fig
MT

130

3
In

this
state

align
shift
arm

pin

with

groove
in

fork
rod

and
assemble

rear
extension

assembly
on

adapter

plate

MT280A
Shift
ann

J

1
Fork
rod

J

At
5th

Installing
Rear
Extension

Assembly
Fig
MT
130

MT29
Note

a

Use
care
when

installing
rear
ex

tension

assembly
Do
not
allow

shift

ann
to

come
out
of
the
strik

ing
leVer

b
Install
shift
ann
onto
4th
5th

fork
rod
and
then
fit

striking
lever

pin
into
oth
r

fork
rods

3
Install

through
bolts
with

wash

ers

GJ

Tightening
torque

Rear
extension
installation

bolt

1
6
to
2
2

kg
m

12
to
16
ft
lb

4

Apply
grease
to

plunger
install
it

in
rear
extension

5

InstaU
return

spring

Apply
locking
sealer
to
return

spring
plug
and
mstall
it
in

place

GJ
Tightening
torque

Return

spring
plug

0
5
to
1
0

kg
m

3
6
to
7
2
ft
lbl

Front
coyer

assembly

I

Select
fron
cover

adjusting
shim

as
follows

I

Using
verruer

caliper
depth
gauge

measure
depth
A

from
front
end

of

transmission
case
to

main
drive

bearing

outer
race
with

front
cover

adjusting

shim
in

place

2

Select
a

shim
of
thickness
A

measured

No

A

mm
in
Manual
Ttansniissio
n

Adjusting
shim

mm
in

0
50
0

0197

0
55
0

0217

0
60
0

0236

0
6

0

9756

0
70
0

0276

0
75
0
0295

0
80
0
0315
I

2

3

4

5

6

7
6
05
to

6
09
0
2382
to
0

2398

6
10to
6
14
0

2402
to
0
2417

6
15
to

6
19
0
2421

to
0
2437

6
20

to
6
2

4

9
1
41

t
19
2457

6
25
to

6
29
0
2461
to

0
2476

6
30
to
6

34
0
2480

to
0
2496

6
35
to
6
39
0
2500
to

0
2516

TM816

Fig
MT
131

MetuUring
Front

CoV
r

Adju
ting
Shim

1

Transmission

case

2
Main

drive

gear

3

Adjusting
shim

4

Bearing

TM817

Fig
MT

132

Selecting
Front

CoV
r

Adju

ti1l8
shim
2

Clean

maling
surfaces
of
front

cover

and
transmission

case

3
Install
front
cover
to
transmission

case
with
the

adjUsting
shim
and
0

ring
in

place

@
Tight
ning
torque

Front

co
erinstallation
bolt

1
0
to
1
6

kg
m

7

to
12
ft

Ib

Outer

parts
assembly

I
Install

speedometer

pinion
assem

bly
and
install

securing
bolt
and

tighten

@

Tightening
torque

Speedometer

sl
locking
plate

bolt

0
3
to
0
5

kg
m

2
2
to
3
6
ft

lb

2

Install
reverse

lamp
switch
and

tighten
At
the

same
time

install

top

detecting
switch
if

so

equipped

Be

sure
to

apply
locking
sealer

before
installation

MT30
@
Ti
ltening
torque

Rewene

lamp
switch
and

top
detecting
switch

2
0
to
3
5

kg
m

14

to
25

fHb

3

Apply
a

light
coat

of
multi

purpose
grease
to

withdrawal
lever

release

bearing
ahd

bearing
sleeve
in

stall
them
on
transmission
case

After

connecting
them
with

holder

spring
install

dust

cover
to

transmis

sion

case

4

Install

control
lever

temporarily

and

move
shift
coritrol
lever

through

all

gears
to
make

sure
that

gears

op
rate

smoothly

5
InstaU
draiiI

plug
coated

with

sealant

in

place

@
Tightening

torque

Drain

plug

2
5
to
4

0

kg
m

18
to
29
fHb

6
Make

sure
that
main
drive

shaft

rotates

smoothly
in

Neutral

v
Jin
drive

gear
routing
torque

less
than
1
8

leg
em
1
6
in
Ib

Manual

Transmission

INSPECTION
AND
ADJUSTMENT

Transmission
model

Item

Ist

gear

2nd

gear

Gear

end

play

mm
in
3rd

gear

5th

gear

Counter

gear

Reverse

idler

gear

Clearance
between
baulk

ring

and

gear
rom
in

Main

drive

coupter
drive

gear

1st

gear

2nd

gear

Gear
backlash

mm
in
3rd

gear

5th

gear

Reverse
counter
to

reverse
idler

Reverse
idler
to

reverse
main

Main
drive

gear

rotating
torque

kg
cm
in

lb
F4W60L

0
15
to

0
25

0
0059
to

0
0098

0
30
to
0

40

0
0118
to

0
0157

0
15

to
0
30

0

0059
to

0
0118

0
10
to
0
20

0
0039
to
0
0079

0
1
0
to

0
27

0

0039
to

0
0106

0
80
to
1

65

0
0315
to
0

0650

0
05
to
0
15

0
0020
to
0
0059

0
05
to
0
15

0
0020
to

0
0059

0

05
to
0
15

0
0020

10
0
0059

0

05
to
0
15

0
0020
to

0
0059

0

05
to
0
18

0

0020
to
0
0071

0
05
to
0
18

0
0020
to
0
0071

Ie
thaI
1

8
1

6

MT32
FS5W60L

0
15
to
0

25

0

0059
to
0

0098

0
15
to

0
25

0
0059
to

0
0098

0
30

to
0
40

0

0118
to

0
0157

O
lSto
0
30

0

0059
to

0
Q118

0
1
0
to
0
20

0
0039
to
0
0079

0
15
to
0

40

0
0059

to
0
Q157

0
80
to
1

65

0

0315
1
0

0650

0
05
to
0
15

0
0020
to

0
0059

O
OSto
0
15

0
0020
to

0
0059

0
05
to

0
15

0

0020
to

0
0059

0
05
to
0
15

0
0020
to
0
0059

0
05

to
0
15

0
0020
to

0
0059

0
05

to
0

18

0
0020
to
0
071

0
05
to
0
18

0

0020
to
0
0071

less
than
1

8
I
6

TIGHTENING

TORQUE

Ball

pin

Striking
lever

lock
nut

S
llft
arm
bracket

Mainshaft

bearing
retainer

screw

Mainshaft

lock
nut

Rear
extension

installation
bolt

Stopper

pin
bolt

Front

cover
installation

bolt

Speedometer
sleeve
lock

ing
plate
bolt

Top
detecting
switch

Reverse

lamp
switch

Neutral
switch

Return

spring
plug

Gear
oil

filler

plug

Gear
oil
drain

plug

Transmission
to

engine

installation
bolt

Tr

msmissiori
to

engihe

rear

plate
installation
bolt

Transmission

to

gusset

installation
bolt

Starting
motor
to

trans

inissi
n
installation
bolt

Rear

mounting
insulator
to

transmission
installation
bolt

Crossmember

mounting

bolt

Rear

engine
mount

installation
bolt

Clutch

operating
cylinder

installation
bolt

Propeller
shaft
to

differential
carrier

Control
lever

pin

installation
nut

Exhaust

mounting
bracket

to
exhaust
front
tube

FU
model

only
Manual
Transmission

F4W60L

2
0
to
3
0

14
to
22

0
9

to
1
2

6
5
to
8
7

0
7
to

1
0
5
1
to
7
2

1
6
to
2
2
12
to
16

0
5
to
0

8
3
6
to
5
8

1
0

to
1

6
7

to
12

0
3
to
0
5
2
2
to

3
6

2
0
to
3
5
14
to
25

2

0
to

3
5
14
to
25

0
5
to

1
0
3
6
to
7
2

2
5
to

4
0
18
to

29

2
5

to
4

0

18
to

29

1

6
to
2
2

12Jo
16

1

6
to
2
2
12

t
16

4
6
to

6
1
33

to
44

3

0
to
4
0
22
to
29

0
9

to
1

2
6
5
to
8
7

3
2

to
4
3
23

to
31

0
9

to
1
2
6
5
to

8
7

3
1

to
4
1

22
to
30

2
4

to
3
3

17
to
24

1
3

to
1
7
9

to
12

3
2

to
4
3
23
to
31

MT33
Unit

kg
m
ft
lb

FS5W60L

2
0

to
3

0
14
to
22

0
9
to

1
2
6
5
to
8
7

8
2

to
10

0
59
to

72

0
8
to
1
3
5
8
to
9

4

10
0

to
11
0
72
to
80

1
6
to
2
2
12
to
16

1

0
to
1

6
7
to
12

0
3
to
0
5
2
2
to
3

6

2

0
to

3
5
14
to
25

2
0

to
3
5

14
to
25

2
0

to
3
5

14
to
25

0
5
to
1
0
3
6
to
7
2

2
5
to
4
0
18
to
29

i
5
to
4

0

18
to
29

1

6
to
2
2
12
to
16

1

6
to
2

2
12
to
16

4

6
to
6
1
33
to
44

3
0

to
4

0
22
to
29

0
9
to
1
2
6
5
to
8
7

3
2
to
4
3

23
to
31

0

9
to
1
2

6
5
to
8
7

3
1
to
4
1
22
to
30

2
4
to

3
3
17
to
24

1
3
to
1
7
9
to

12

3
2
to

4
3
23
to
31

DATSUN
210
Model

8310
Series

SECTION

AT

AUTOMATIC
TRANSMISSION

CONTENTS

DESCRIPTION

HYDRAULlC
CONTROL
UNIT
AND

VALVES

HYDRAULIC
CONTROL
CIRCUITS

REMOVAL
AND
INSTALLATION

TRANSMISSION
ASSEMBLY

MAJOR
REPAIR

OPERATION

SERVICE

NOTICE
FOR

DISASSEMBL
Y
AND
ASSEMBLY

TORQUE
CONVERTER

TRANSMISSION

COMPONENT
PARTS
AT
2

AT
3

AT
6

AT
25

AT
25

AT
27

AT
27

AT
27

AT
27

AT
31
TROUBLE
DIAGNOSIS
AN

ADJUSTMENT

INSPECTION
AND

ADJUStMENT

BEFORE
TROUBLE
DIAGNOSIS

STALL
TEST

ROAD
TEST

LINE
PRESSURE

TEST

TROUBLE
SHOOTING
CHART

SERVICE
DATA
AND

SPECIFICATIONS

SPECIAL
SERVICE
TOOLS
AT
39

AT
39

AT
41

AT
4i

AT
44

AT
45

AT
51

AT53

The
3N71
B
trammission
is
a

fully

automatic
unit

consisting
primarily
of

a
3
element

hydraulic
torque
converter

and
two

planetary
gear
sets
Two

multiple
disc
c1utclies
a

multiple
disc

brake
brake

band
and
one

way
clutch

provide
the

friction
elements

necessary

to
obtain

the
desired
function
of
the

two

planetary
gear
ets

A

hydraulic
control

system
is

used

to

operate
the
friction
elements
and

automatic
shift
controls

TORQUE
CONVERTER

The

torque
converter
is

attached
to

the
crankshaft

through
a
flexible
drive

plate
Heat

generat
in
the

t
rque

converter
is

dissipated
by
circulating

the
transmission
fluid

through
an
oil

to

water

type
cooler
in

the
radiator

lower
tank

The

welded
comtruction

of
the

torque
co
verter

prevents
di
3

ssembly

or
service
unless

highly

specialized

equipment
is
available

Qj
gJ
Autpmatic
Trimsmissi6n

DEScRIPTION

FLUID

RECOMMENDAnON

Use
DEXRON

type
automatic

transmission
fluid

only

IDENTIFICATION
NUMBER

Stamped
position

The

plate
is

attached
to
the

right

han
side
of
transmission

case

AT
M

Fig
AT
l

Identification
Number
Identification
of
number

arranaemanta

JAPAJllUTOIlATlC
TRAJISIIISSIO

C8
Ull

MODEL
X
0
12
3

NO
7
6
0

1
2

34

Number

designation

76
0
I
2

34

L

Serial
productioo

number

for
the
month

Month
of

production

1
Jan

2
Feb

X

Oct
Y

Nov
Z

Dec

Lut

IJgUre
denotins

the
year
A

D

IJ

III

J

W

f

r
lrr

G

1

Transmission
case

2
Oil

pump

3
Front
clutch

4

Band
brake

5
Rear
dutch

6
Front

planetary
geat

7
Rear

planetary
gear
8
One
way
clutch

9
Low
4
Reverse
brake

10
Oil
distributor

11
Governor

12

utput
shaft

13
Rear
extension
14
Oil

pan

IS
Control
valve

16

Input
shaft

17

Torque
converter

18
Converter

housi

19

Drive

pia
te
Tightening

torque
T
of

bolts
and
nuts

kg
m
ft
lb

@
T
4

to
5
29
to
36

@
T

14
to
16
101

to
116

@
T
4

5

to
5
5

33
to
40

@
T

0
6
to
0
8
4

3
to
5

8

@

T
0
5
to
0
7

3
6
to

5
1

T
2

0
to
2
5

14
to
18

@
T

1
3
to
1

8
9

to
13

@
T

0
55
ta
0
75
4
0
to
5
4

CD
T

0
25
to
0
35
1
8
to
2
5

AT312

Fig
AT
2
3N71B

Automatic
Trammiuion

AT
2

Automatic
Transmission

HYDRAULIC
CONTROL
UNIT
AND

VALVES

The

hydraulic
or
a
tomatic
control

system
is

comprised
of
four
4
basic

groups
the

pressure
supply
system

the

pressure
regulating
system
the

flow
control
valves
and
the
friction

elements

PRESSURE
SUPPLY
SYSTEM

The

pressure
supply
system
consists

of

a

gear

type
oil

pwnp
driven

by
the

engine
through
the

torque
converter

The

pump
provides

pressure
for
aU

hydraulic
and
lubrication
needs

PRESSURE
REGULATOR

VALVES

The

pressure
regulating
valves
con

trol
the

output
pressure
of
the
oil

pump

Pre
ure

rellulator
valve

The

pressure
regulator
valve
con

trois
mainline

pressure
based
on

throttle

opening
for
the

operation
of

the
band
clutches
and

brake

Governor

valve

The

governor
valve
transmits

re

gulated
pressure
based
on
car

peed

to
the

shift
valves
to
control

upshifts

and
downshifts

Vacuum
throttle
valve

The
vacuum

throttle
valve
transmits

regulated
pressure
based
on

engine

load
vacuum
This

pressure
controls

the

pressure
regulator
valve

Also
this

pressure
is

applied
to
one
end
of
the

shift
valves
in

opposition
to

governor

pressure
which
acts

on
the
other

end

of
the
shift
valves

controlling

upshift

and
downshift

speeds
FLOW
CONTROL
VALVES

Manual
valve

The
manual
valve
is
moved

manual

Iy
by
the
car

operator
to
select
the

different
drive

ranges

1
2
ShHt
valve

The
1
2

shift
valve

automaticaIly

shifts
the
transmission
from
first

to

second
or
from
second
to
first

depend

ing

upon
governor
and
throttle

pres

sure

along
with

accelerator

position

solenoid
downshift
valve
See

Hy

draulic
Control
Circuits
Drive

2

2
3
ShHt
valve

The
2
3
shift
valve

automaticaIly

shifts
the
transmission
from
second
to

top
gear
or
from

top
to
second
de

pending

upon
governor
and
throttle

pressure
or
accelerator

position
sole

noid
downshift
valve

See
Hydraulic

Control
Circuits
Drive
3

Range

2
3

Tlmlnll
valve

For
2
3
shifts
a
restrictive
orifice

slows
the

application
fluid
to
the
front

clutch
while
the

slower

reacting
band

is
allowed
to
release
This

prevents
a

hard
2
3
or
3
2
shift
Under

heavy

load
however
the

engine
will
tend
to

run

away
during
the
2
3

or
3
2
shift

pause
therefore
a
2
3

timing
valve

using
throttle
and

governor

pressure
is

used
to

bypass
the

restrictive
orifice

during
such

heavy
load
conditions

Solenoid
down
hHt
valve

The
solenoid
downshift
valve
is

activated

electrically
when
the
ac

celerator
is
f1oor
d

causing
a
forced

downshift
from

top
to
second

top
to

first
or

second
to

first

gear
depending

upon
car

speed
governor

pressure

AT
3
Pre
ure
modified
valve

The

pressure
modifier

valve
assists

the
mainline

pressure

regulator
valve
in

lowering
mainline

pressure
during

high

speed

light
load
conditions
such
as

steady

speed
cruise

Governor

pres

sure

working

against
a

spring

opens

the

valve
which
aUows

modified
throt

tle

pressure
to
work

against
the

pres

sure

regulator
valve

spring
lowering

mainline

pressure
Lower

operating

pressure
under

light
load

reduces
oil

temperature
and
increases
transmis

sian
life

Throttle
back
up
valve

The
throttle

back

up
valve
assists

the
vacuum
throttle
valve
to

increase

line

pressure
when
the
manual
valve
is

shifted

either
to

2
or
I

range

Second
lock
valve

The

second
lock
valve
is

used
to

bypa
the
1
2

shift
valve

to
maintain

the
band

apply

pressure
in
2

posi

tion
The
valve
is
also
used
as
an
oil

passage
for
the
1
2

shift
valve

band

apply

pressure
in

D2

D3
and

12
Range

CLUTCHES
AND
BAND

SERVOS

The

servo

pistons
of
the
clutches

low

reverse
brake
and

band
are
moved

hydraulically
to

engage
the

clutches

brake
and

apply
the
band
The
clutch

and

brake
istons

are
released

by

spring
tension

and
band

piston
is

released

by
spring
tension

and

hy

draulic

pressure

OIL
CHANNEL

IDENTIFICATION

The
circuit
numbers
shown
in
each

Hydraulic
Control
Circuit
are

classified

as
follows
according
to
the

function

Pressure
source
of
the
line
7

Operating
line

pressure
for

friction
elements

I
2
3
4
5
6

g
9

10
11
12

Auxiliary
line

pressure
13

Torque
converter

pressure
14

Governor

pressure
15

Throttle

system
pressure

16
17
18

19

Oil
pump
discharge
hole
7

f
Torque
converter

pressure
14

Rear
clutch

pressure
1

Front
clutch

pressure
11

W
h0i1
pu
6
suction
hote

e

8

IIlIlJJIII
Automatic
Transmission

L

f

AT106

Fig
AT
5

Oil
Channela
in
Cou
Front
Face

lo
o

o
0

Oil

pump
discharge
hole
7
Governor

pressure
15

1

h

Torque
converter
I

pressure
14
0
0

Servo
release

Rear
clutch

l
press
re

10
r

L

Governor
reed

pressure
1

pressure
1
Servo

tlghtemng

li
nb

o

0

pressure
9

r

Front

clutch
fI
Low
reverse
brake

pressure
12

pressure
11

U
0

111
1

1
P
u
n

e

AT107

ATlOS

Fig
A
T
4

Oil
Channell
in
Oil
Pump
Fig
A
T
6
Oil
Channell
in
Cou
Fac

MECHANICAL
OPERATION

In

the
3N71B
automatic
transmis

sion
each

part
operates
as
shown
in

the

following
table
at
each
gear
select

position
RanKe
Cm

ratio
Clutch
Low
A

Front
Rear

brake
One

w

y

dutch
Parkin

pa
l
Band
servo

Operation
Release

Park
on
on

Reftrst
2
182
on

on
on

Neutral

Dl
Lo
2
458
on

on

Drift
02
Second
1
458
on

03

Top
1
000
on
on
on

2
Second
1
4
8
on
on

12
Second
1458
on
on

Low
2
4
8
on
on

Note
The
low
brake
is

applied
in

11
raiW
to

prevent
free
whee6ng

when
coasting
and
aIlows
engine

braking

AT
5