1979 DATSUN 210 automatic transmission fluid

Erigine
crankcase

EI
gine
cooling
system

Transmission
case

Final
drive
case

housing

Steering
gear
box

Fuel
tank

Air

conditioning
system

Refrigerant

Compressor
oil

f
tl

It
J

4
i

1

protect
the

catalytic

cop
verter
froitr

contamination
t
n
General
Information

APPROXIMATE
REFILL
CAPACITIES

Without
oil
filter
AI4

Al5

w

Al5

M
T

AfT

MiL

A
T
Liter

US
measure

3
2
3

qt

2
8
3

qt

3

7

llLgt

33
3

qt

5
2
5

qt

5
0
5Y

qt

5
9
6
Y
at

57

6qt

1
3
2
Y

ot

1
2
2

pt

53
5

qt

0
9
1

pt

0
25

pt

50
13
Y
I

0
8
tol

Okg
1

8
to
2
2
1b

0
237

8
0
floz
Withoil

Without
heater

With

heatfr

MaDllal
soeed

5

spee

Automatic
1

1
Includes
2
7

liters
2

US

qt
2

Imp
qt
for

torque
converter

RECOMMENDED
FUEL

Use
an
unleaded
or
low
lead

gaso

line
with
a
minimum
octane

rating
of

91

RON
Research
Octane
Number
For

cars

equipp
d
with
the

Cataly

tic

converter
California
and
FU
mod

els
use

only
unleaded

gasoline
to

RECOMMENDED

Lubricant

GasOline
engine
oil

Gear
oil
Transmission

and

steering

Differential

Au
omatic

TIM
fluid

Multi

purpose
grease

Brake
and
clutch
fluid

Anti
freeze
L
NDED

LUBRICAN

COMMENDED

i

I
VISCOSITY
NUMBER

t1

NGON
0

L
J

I
j
H

I

IlL
I

t

l

I
lc
30
ItM
7

l
t

U

I
ItM
I

L
L
tJ

30

I

I
fu

JIl
inld

do

o

II

L
liOwl

1
I
I
1

10

I
I

I
I
t

I

I

j
r

I

I
J
1

21
l
1
I
71

c

DIUt
I2lItMOl
UGIIII
FI

R

NIl
I
01
a
Specifications
Remarks

APISE

API
GL4
Further
details
refer
to

recommended
SAE

viscosity
chart

API
GL
5

Type
DEXRON

NLGI
No
2
Lithium

soap
base

DOT
US
FMVSS
No
116

Ethylene
glycol
base

GI
5
Imp

meas4re

2

qt

2

qt

3Y

qt

2

it

4

qt

4

q

5Y

qt

5

qt

2Y

pt

2

pt

4

qt

I

pt

pt

II

gal

1
8
to
2
2
lb

83f1
oz

Ji

j

j

gear
box

I
Disconnect

a

pair
of
lead
wires

2
Unscrew
the
switch

body
itself

The

switch
can
then
be
taken

out

3

Installation
is
in
the
reverse
se

quence
of
removal

dl
Tightening
torque

Top
cietectingswitch

2
0
to
3
0

kll
m

14
to
22

fHbl

@

EC892

Fig
EC
89

Remouing
Top

Detecting

Switch

Top
detecting
switch

For

AfT
models

The

top
detecting
switch
is

installed

on
the
side
face
of
the

gear
box

I

Disconnect
a
lead
wire

for

top

switch

2

Loosen
switch
itself

Switch
can
then
be
taken
out

Note

When
the

switch
is

remo
ed

automatic

transmission
fluid

flows

out

Prepare
some

rugs
to

prevent
the

fluid
rom

flowing
out

EC169A

Fig
EC
90

Remouing
Top

Detecting

Switch

An
models

3

Insta
tion

is
in

the
reverse
se

quence
of

removal
Emission
Control

System

dl
r

ingtorq

Top
detecting
switch

2
0
to
3
0

kll
m

14

to
22
ft

bl

Thermal
vacuum
valve

3

port
type

The

thermal
vacuum
valve
is
instal

led

on
the
rear
end
of

the

engine

cylinder
head

I

Drain

engine
coolant
about

one

liter

lUllS
qt
Ulmp
qt

2

Remove
manifold

nut

securing

heat
shi
eld

plate

r

l

EC170A

Fig
EC
91

Remouing
Hoot
Shield

Pwte

3
Disconnect
3
vacuum
hoses
and

unscrew
valve

itself
Valve
can
then
be

taken
out

4
Install

thermal

vacuum
valve
in

the

reverse

sequence
of

removal
At

this
time

the
valve
should
be

tighten

ed
to

a
tilt

angle
of
300

Note
Be
sure
to

apply
oealer
to

threads
o
the
valve

prior
to
instal

ling
new

valve
t
J
T1g11taning
torqUe

Thermal

cuum
waive

Less
than

2
2

kll
m
16
ft

bl

Manifold
nut

1
5

to
2

0kg
m

11
to
14
ft

bl

From
distributor

From
B
P
T

valve

From
air
cleaner

ECl71A

Fig
EC

92

mtalling
Thermal
Vacuum

Value
3

port
type

Vacl
ul11

delay
valVe

The
vacuum

delay
Valve
is

installed

on
the

midway
o
the
vacuum
tube

between

the
carburetor
and
distributor

vacuum
advance
mechanism

In

installing
the
valve
make
sure

that
the
brown
face

sid
is
connected

to
the
carburetor

side

Carburetor
sid

C
r

i

J

EG
30
Distributor

side

One
way

umbreDa
valve

Sintered
metal
disc

EC277

Fig
EC
93
In

tolling
Vacuum

Deloy
Value

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

DI
RANGE
LOW

GEAR

Po
r
flow

With
the
shift
selector
in
0
low

gear
engine
torque
is

traJWnitted

through
the

applied
rear

clu
tch
to
the

internal

gear
of
the
front

gear
set
The

c1o
kwise
rotation

o
f
the

front
inter

naI

gear
causes
the
front

planet
gears

to
rotate
clockwise

driving
the

com

pound
sun

gear
counterclockwise
The

front

planetary
carrier
is

splined
to
the

output
shaft
This
cau
the

planet

gears
to
drive
the
sun

gear
instead
of

walking
around
the
sun

gear
This

counterclockwise
rotation
of

the
sun

gear
causes
the
rear

planet
gears
to

rotate
clockwise
With
the
one

way

clutch

holding
the
rear

planet
carrier

the
rear

planetary
gears
turn
the
rear

internal

gear
and

output
shaft
clock

wise
in
a
reduction
ratio

of

approxi

mately
2
46
to
L

Fluid
flow

Manual
Valve

2

3
Automatic
Transmission

Fiont

gear
set
Rear
gear
set

Input
t1uOllsh

rear
clutch

Output
shaft

Held

by
on
way
clutch

Input
from
front

gear
set

Output
to
real

gear
set

AT330

1

J

ld

AT081

Front
clutch

Reu
clutch

Low
and
revcrx
brake

Brake
band
servo

Onto

way
clutch
OFF

ON

OFF

OFF

HOLDING

Fig
AT
12

MochanicaIOp

rationduri

DJ
Ra

Governor
Valve

Pressure
Modifier
Valve
15

2nd
3rd
Shift
Valve

lst
2nd
Shift
Valve

2nd
3rd

Timing
Valve

1st

2nd
Shift
Valve

j
Rear

Clutch

I

Second
Lock
Valve

Second
Lock

Valve

LOrifice

Check

Valve
2nd
3rd

Shift
Valve

AT12

Automatic
Transmission

D3
RANGE
3RD

GEAR

Front

gear
set
Rei
r

gear
set

Input
through
flODt

and
rear
clutches
Power
flow

In

D3
range
engine

troque
is

transmitted

through
both
clutches

The

front
clutch
turns
the
internal

gear
of
the
forward

gear
set
clockwise

The

rear
clutch

turns
the

sun

gears
in
a

clockwise
direction
also

With
both
the

internal

gear
and
the
sun

gear
of
the

forward

gear
set

turning
in
the

same

direction
at
the
same

speed
the

planet

gears
are
locked
in

position
and
turn

as
a
unit
The

output
shaft

spIined
to

the
forward

planet
carrier

turns
at
a

ratio
of
L
Output

shaft

AT332

Front
clutch

ON

Ij
1f

Front
clutch

Rear
e1utd

Low
reverse

brake

Brake
band

On

way
clutch
ON

ON

OFF

OFF
Pressure
rdeaJe

OFF
A

T083

Fill
AT
I6
Mechanical

Operation
hiring
D

Ronge

Fluid
flow

Governor

pre
ure
increases
to
the

poinl
that
it

can
overcome
the
com

bined
forces

of

spring
and
throttle

pressure
and
move
the
2nd
3rd
shift
valve
When
the
2nd
3rd
shift
valve

opens

pressure
passes
through
the

valve
lands
to
the
2
3

timing
valve
and

on
to

apply
the
front
clutch
and
release
the
brake
band
The
car
is
now

in

D3
or
direct
drive
the
rear
clutch

was

already

applied

Manual
Valve
I
Governor
Valve
IS
Pressure
Modifier
Valve

2nd
3rd

Timin8
Valve

2nd
3rd
Shift
Valve

ht
2nd
Shift
Valve

1st
2nd
Shift
Valve
8
Second
Lock
Valve

9
Band
Servo

Apply
Side

2
i

I

I

Band
Servo
is
released

t

Second
Lock
Valve

L

Orifice
Check
Valve
2nd
3rd
Shift
Valve
10

r
Band
Servo
Rele

Side

I

L
2nd
3rd

Timing
Valve
I
I

I
Front
Clutch

I
J

Second
Lock
Valve
I
Rear
Clutch

I

3

AT

16

Automatic
Transmission

2
RANGE

2ND

GEAR

The

range
2

position
is
used
to

lock
the
car
in

2nd
gear

preventing

upshifts
or
downshifts
under

any
con

ditions
Fluid
flow

opening
the
valVe

and

alloWing
pr

sure
to

p
into

the
line
of
the

throttle
valve
thus

assuring
adequate

throttle

pressure
even

during
decelera

tion

J
he
downshift
solenoid
valve
is

used
as
a

passage
for
line

pre
re
to

lock

the
1

2
and
2
3
shift
valves
Po
r
flow

Power
flow
in
2

raogo
is
the
same

as
in

D2
range
Uoe

pressure
from
the

manual

valve

opens
the
second

lock
valve

against
spring

pressure
As

this
valve

opens
pressure
the
passes
to

apply

the
band
servo
Une

pressure
also

flows
to
the
throttle
back

up
valve

UlllV
I
Governor
Valve

IS
Pressure
Modifier
Valve

2nd
3rd

Timing
Valve

2nd
3rd
Shift
Valve

1st

2nd
Shift

Valve

1st
2nd
Shift
Valve

j
Rear
Clutch

2

1
Band
Servo

Apply
Side

l

Solenoid
Downshift
Vilve

1312nd
3rd
Shift
Valve

1st

2nd
Shift
Valve
Second
Lock
Valve
9

4

Throttle
Back

up
Valve
17

Vacuwn
Throttle
Vilve
16

l
Jre
ModifJerVilve

2nd
3rd
Shift
Valve

2nd
3rd

Timing
Valve

Throttle
Drain
Valve

Pressure

Regulator
Valve

AT
20

Automatic
Transmission

l
RANGE

LOW
AND
2ND
GEAR
second

12
afwvernor
preSsure
pre

vents
the
I
2

shift
valve
from

closing

The

range
1

position
is
used
to

lock
the

car
in
1st

gear
preventing
any

upshifts
If
the
selector
lever
is

moved

to
the
I

position
while
the
car
is

moving
at

high

speeds
the
transmis

sion

w
ill
not

shift
into

first

gear
until

car

speed
slows
to

approxiniately
55

km
h
35

mph
Instead
it
will
shift
to
Po
r
flow

The

power
flow
in

11
differs

slight

ly
from

01
in
that

the
low
and

reverse

band

is

applied
to
hold
the

rear

gear

set

planet
carrier

providing
engine

hraking
Power
flow

in

12
is
the
same

a

io02

Manual
Valve
Governor
Valve
15
Pressure
Modifier
Valve
I
Fluid
flow

Lolft
ar

Manual

pressure
passing
through

the
1

2
shift
valve
is

used
to

close
the

1
2
shift
valve

preventing
a
1
2

up

shift

Manual

pressure
pusing
through

the

downshift
valve
lock
the
2

3
siuit

valve
closed

along
with

applying
addi

tional

closing
pressure
to
the
I
2

shift

valve

2nd
3rd

Timing
Valve

2nd
3rd
Shift
Valve

lst
2ndSti
ft

Valve
1st
2nd
Shift
Valve

iRea
Clutcb

I

4
Solenoid
Downshift
Valve
13

I2nd
3rd
Shift
Valve

ht
2nd
Shift
Valve

Throttle
Back

up
Valve

5
C

1st
2nd
Shift
Valve
12

I
Throttle
Back

up
Valve

y
Low
Reverse
Bra1ce

I

Fluid
flow
2nd
ar

Manual
Valve
Governor
Valve
15
Preuurc
Modjfier
Valve

2nd
3rd

Timing
Valve

2nd
3rd
Shift
Valve

1st
2nd
Shift
Valve
8
1st
2nd
Shift
Valve

Second
Lock
Valve
9

I
Band
Servo

I
Apply
Side

4
t
Rear
Clutch

I

Solenoid
Downshift
Valve
13

I
2nd
3rd
Shift
Valve

ht
2nd
Shift

Valve

Throttle
Back

up
Valve
17
PreSlure
Modifier
Valve

2nd
3rd
Shift
Valve

2nd
3rd

Timing
Valve

Throttle
Drain
Valve

s
ht
2nd
Shift
Valve
Pressure

Regulator
Valve

AT
22