1979 DATSUN 210 manual transmission

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

Automatic
Transmission

REMOVAL
AND

INSTALLATION

TRANSMISSION

ASSEMBLY

When

dismounting
the
automatic

transmission
from
a
car

pay
attention

to
the

following
points

I
Before

dismounting
the
trans

mission

rigidly
inspect
it

by
aid
of
the

Trouble

shooting
Chart
and
dis

mount

it

only
when
coll5idered
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
car

proceed
as
follows

I

Disconnect

battery
ground
cable

from
terminal

2

Disengage
torsion

shaft
from
ac

eelerator

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

Pl
ll
up
the

openina
in

the
rear

extension
to

prevent
oil
from

flow

ing
out

S

Disconnect
front
exhaust
tube

6
Disconnect
selector

ra
8e
lever

from

manual
shaft

7
Disconnect
wire
connections

at

inhibitor
switch

8

Disconnect
vacuum
lube
from

vacuum

diaphragm
and
wire
connee

tions

at
downshift
solenoid

9

Disconnect

speedometer
cable

from
rear
exlension

10
Disconnect
oil

charging

pipe

II

Disconnect
oil
cooler

inlet
and

outlet
tubes
al
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
CAUTION

Do
not

plecs
the

jack
under
the
oil

pin
dnin

plug

13
Detach
converter

housing
dust

cover
Remove
bolts

securing
torque

converter
to
drive

plate

AT261

Fig
A
T
22

Removi
Torqu

Converter

Attachirrg
Bolt

Note
Before

toni
COD

v
ter
ICnlJe
match
mark
011
two

parts
10
that

they
may
be

replaced

in
their

original
position
at
sa

sembly

14
Remove
rear

engine
mount
Se

curing
bolts

and
crossmember
mount

i
8
bolts

IS
Remove
starter
motor

16
Remove
bolts

securing
transmis

sion
to

engine
After

removing
these

bolts

support
engine
and
transmission

with

jack
and
lower
the

jack
gradually

until
transmission
can
be
removed
and

take
out
transmission
under
the
ear

Note

P1
I
up
the

opening
such
u
oil

chergina
pipe
oil
cooler
tuba
etc

CAUTION

Take
cin
in

dismounting
tnnStnlllioA

not
to

strike

any
adjacent
paru

INSTALLATION

Ill5tallation
of
automatic
transmls

sian

on
car
is

reverse
order
of
removal

However
observe
the

following
in

stallation
notes

Drive

plate
runout

Turn

crankshaft

one
full
turn
and

measure
drive

plate
runout
with

indi

AT
25
eating
finger
of
a

dial

gauge
rested

against
plate

Maximum

ellowable
runout

0
5
mm
0

020
in

AT268

Fig
A
T
3

Me
uring
Drive
PIote

Runout

2
Installation
of

torque
converter

Line

up
notch
in

torque
converter

with
that
in
oil

pump
Be
extremely

careful
not
to
eause
undue
stresses
in

parts
In

inataIIing
torque
converter

AT116

Fig
A
T
24

Torqu
Converter

A

ligning
Cut

3
When

connecting

torque
con

verter
to
transmission
measure
dis

tance
A

10
be
certain
that

they
are

correctly
assembled

Distance
HA

Melre
irian
21

5
mm
0

846
in

A

AT117

Fig
AT
26

1116talling
Torque

Convert
r

4
Bolt
converter
to

drive
plate

Note

Align
chalk
mark

painted
a

cro5S
both

parts
during
disas

sembling
p

S
After
converter
is

installed
rotat

r
nkshait
veral
turns
and

check
to

be

sure
that
transmission

rotates
freely

without

binding

6

Pour
recommended
automatic

transmission
fluid

up
to
correct
level

through
oil

charge
pipe

7
Connect
manual
lever
to
shift

rod

Operation
should
be
carried
out

with
m
mual
and
selector
levers
in

N

8

Connect
inhibitor
switch
wires
Automatic
Transmission

NOte

a
Refer

to

page
AT40
for

Checking

and

Adjusting
Inhibitor
Switch

b

Inspect
end

edjust
switch
as

abo

whe
ever
it
has

to
be
removed
for

servi
e

9

Check
inhibitor

switch
for

op

eration

Starter
should
be

brought
into

op

eration

only
when
selector
lever
is
in

P
and
N

positions
it

should
not

be
started
when
lever
is
in

D
n

and
Ru

positions

Back

up

lamp
should
Iso

light

when
selector
lever
is

placed
in
R

position

10
Check
level
of
oil
in

transm

sion
For
detailed

procedure
see

page

AT39

AT

26
II
Move

selector
leve

through
all

positions
to
be

sure
that
transmission

operates
correctly

With
hand

brake

applied
rotate

engine
at

idling
Without

disturbing

the
above

seUlng
move
selector

lever

through
N

to
D
to
2

to
I

and
to

R
A

slight
shock
should
be

reU

by

handgripping
selector

each

time
transmission

is
shifted

Note
See

page
AT40
for

Checking

Engine
Idling
Revolution

12
Check

to
be
sure
that

line

pres

sure
is

correct
To
do
this
refer
to

page
AT
43
for
Line
Pressure
Test

13

Perform
stan
test
as
described
in

page
AT41

Note
If
difficulty
is
encountered
in

removing
retainer
direct

8

jet
of

air

toward
release

side

Ph

i

AT132

Fig
AT
40
Remov
I
Band
Servo

21

Pry
snap
rings
CD
from
both

ends
of

parking
brake
lever

@
and

remove
the

lever
Back
off
manual

shan
lock
nut

CID
and
remove
manual

plate
@
and

parking
rod

CID

Fig
AT

41
Rtmoving
Manual
Pl4tt

22
Remove

inhibitor
switch
and

manual
shaft

by
loosening
two
secur

ing
bolts

INSPECTION

Torque
converter

houslns

trensmlsslon
use
end

reer
extension

I

Check
for

damage
or

cracking
if

necessary
replace

2
Check
for
dents

or
score
marks

on

mating
surfaces

Repair
as
nee

essary

3
If

rear
extelUlion

bushing
is

worn

or
cracked

replace
it
an

mbly
of

bushing
and
rear
extension

housing
Automatic
Transmission

Geskots
end
Gorin

J

Always
use
new

gaskets
when
the

units

are
to
be
disassembled

2

Check
O

rings
for
burrs

or
crack

ing
If

necessary
replace
with
new

rings

011
distributor

I
Check
for

signs
of
wear
on

seal

ring
and

ring
groove

replacing
with

new
ones
if
found

worn

beyond
use

2
Check
that

clearance
between
seal

ring
and

ring
groove
is

correct
If
out

of

specification
replace
whichever
is

worn

beyond
limits

Clearence
1
n
58el

ring
end

ring
groove

0
04
to
0
16

mm

0
0016
to
0
0063
in

Clearance

Seal

ring

0
o
ii

J

0
1

FI

AT13

Fig
AT
42
Mea

uring
Seal

Ring

to

Ring
Groove
Clearance

ASSEMBLY

Assembly
is
in
reverse
order
of

disassembly
However
observe
the
fol

lowing
assembly
notes

After

installing

piston
of
low
and

reverse
Drake

assemble
thrust

spring

ring
return

spring
thrust
washer
and

one

way
clutch
inner

race

Tighten

hex
head
slotted
bolt

using
Hex

head
Extension
ST2SS7000J

ST2SS70000

Torque
Wrench

GG930JOOOO
and

Socket
Extension

ST2S490000

ST2SSI200J

AT
29
J
Tightening
torque

One

way
clutch
inner
race
to

transminion

case

1
3
to
1
8

kg
m

9
to
13

ft
b

ST25570001

h
ST25490000

GG9
30
10000

Fig
AT
43

1
lalli
ll
One

way

Clutch
Inner
Race

2
After
low

and
reverse
brake
has

been
assembled
measure
the

clearance

between

snap
ring
CD
and

retaining

plate
@
Select

proper
thickness
of

retaining
plate
to

give
correct

ring
to

plate
clearance

Low
and
revene
br
ke

de
r
nce

0
80
to
1
25
mm

0
031
to
0

049
in

Fig
A
T
44
Measuring
Ring
to

Plate
Clearance

Available

retaining
plete

Refer
to
Service
Oeta
and

Specifications

3

Install
one

way
clutch
so

that
the

arrow
mark
4
is
toward
front
of

vehicle
It
should
be

free
to
rotate

only
in
clockwise
direction

ITU

lmQO
d
fJ

AT137

Fig
A
T
45
One

way
Cluleh

4

After

installing
rear
extension

tighten
attaching
bolts
Place
manual

lever
in
P

range
and
check
to

be
sure

that

rear
outpul
shaft
is

securely

blocked

fl
Tightening
torque

Transmission
case
to
rear

extension

2
0
to
2

5

kg
m

14
to
18
fHbl

5

Tighten
servo
retainer

temporari

Iy
at
this

stage
of
assembly

6
Place
rear
clutch

assembly
with

needle

bearing
on
front

assembly

7

Install
rear
clutch

4
lb
and
front

planetary
carrier

AT142

Fig
AT
46

talling
Planetary

Carrier

8
Assemble

connecting
shell
and

other

parts
up
to
front
clutch
in

reverse
order
of

disassembiy

AT143

Fig
AT
47

talling
Canneetin

Shell
Automatic
Transmission

9

Adjust
total
end

play
and
front

end

playas
follows

Front
end

play

t

Zl

L

r

Total

end

play

AT138

Front

clutch
5

Transmission
ca5e

thrust

washer
6
Oil

pump
gasket

2

OH

pump
cover
7

Oil

pump
cover

3
Front

clutch

bearing
race

4

Rear
clu

tch

Fig
AT
48
End

Play

I
Measure
the
distance
A
and

C

by
vernier

calipers

I

I
Tran

mission
case

t

f

l

1
I
n
0

tic
r
1

A
W

I

I
II
clulch

I
N
ed1e

bearing

Bearing
lace

J

AT139

Fig
A
T
49

MeaSuring
the
Di
tance

A
and
C

2
Measure
the
distance
B
and

D
of

oil

pump
cover

B

AT140

Fig
A
T
50
Measuring
the
Di
tance

cB
and
n

AT
30
Adjustment
of
totel
end

pley

Select
oil

pump
cover

bearing
race

by

calculating
thc

following
formula

TT
A

B
W

where

T

T
Required
thickness
of
oD

pump

cover

bearing
race
mm
in

A

Measured
distance
A

mm
in

B
Measured
distance
B
mm
in

W

Thickness
of

bearing
race

temporarily
inserted
mm
in

A
vaDable
oil

pump
cover

bearing

race

Thickness
nun
in

1
2
0
047

I
4
0
055

1
6

0
063

1
8
0

071

2
0
0
079

2
2
0

Og7

Specified
totel

end

play

0
25
to
0
50

mm

o
oio
to
0

020
inl

Adjustment
of
front
end

pley

Select
front
clutch
thrust
washer
by

calculating
the

following
formula

T

F
C
D
0
2
mm

where

T

F
Required
thickness

clutch
thrust
washer

C

Measured
distance
C

D

Measu
red
distance
D

Available
front
clutch
thrust

washer
of
front

mm
in

nun
in

mm
in

Thickness

mm
in

1
5
0
059

I
7

0
067

1
9

0
075

2
1
0

083

2
3
0

091

2
5
0
098

2
7
0
106

Specified
front
end

pley

0
5
to
0
8

mm

0

020
to
0
031
inl