clutch DATSUN 210 1979 Workshop Manual

Fig
A
T
31

Removing
Bond

St
t

10
Remove
brake
band
front

clutch
and
rear
clutch
as
an
assembled

unit

II
Remove

connecting
shell
rear

clutch
hub
and
front

planetary
carrier

asa
unit

I

AT12

Fig
AT
32

Removing
Connecting

Shell

12
With
the
aid
of

Snap

Ring
Re

mover

HT69860000

pry
snap

ring
off

output
shaft

fig
A
T

33

Removing
Snap
Ring

13
Remove

connecting
drum
and

inner

gear
of

rear

planetary
carrier
as

an

assembly
Automatic

Transmission

AT126

Fig
A
T
34
Removing
Connecting

D
m

14
Remove

snap
rings
and
then

remove
rear

planetary
carrier
internal

gear
connecting
drum
one

way
clutch

outer
race
nd
one

way
clutch
in
that

order

I

S
Remove
rear
extension

by

loosening
securing
bolts

Fig
A
T
35

Removing
Rear
Extemion

16
Pull
out

output
shaft
remove
oil

distributor

@

together
with

governor

Ive

D

Fig
AT
36
Remov

ngGovernorand

Oil

Di
tributor

17

Pry
off

snap
ring
using
a

pair
of

pliers
Remove

retaining

plate
drive

plate
driven

plate
and
dish

plate
in

that
order

AT
28
Fig
AT
37

Removing
Drive
and

Driven
PltJte

18
Reaching
through
back
side
of

transnlission
case
remove
hex
head

slotted
bolts
To
do
this
use
Hex

head

E

xt
ens
ion

S
T
2

55
7
000
I

ST25570000
One

way
clutch
inner

race
thrust
washer

piston
return

spring
and
thrust

spring
ring
can
now

be
removed

snSS70001

Fig
A
T
38

Removi
Hex
head

Slolted
Boll

19
Blowout
low
and
reverse

brake

piston
by

directing
a

jet
of
air
into

hole
in

cylinder

Fig
A
T
39
Rem
wing
Piolon

20
Remove
band
servo

loosening

allaching
bolts

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

Note

L
C
llTect
thid
ness
of

bearing
race

end
thrust
washer
is

always
the
one

which
is
nearest
the
calculated
one

b
InsteJled
thid
noss
of
oil

pump

gasket
is

0
4
mm
0
016
in

10
Check
to
b

sure
that
brake

servo

piston
moves

freely
For
detailed

procedure
refer
to

page
AT
33
for

Servo
Piston
Use

care
to

prevent

piston
from

coming
out
of

place
dur

ing
testing
since
servo
retainer
is
not

tightened
at
this

point
of

assembly

II

Make
sure
that

brake
band
strut

is

correctly
installed

Tighten
piston

stem
Back
off
two
full
turns
end

secure
with
lock
nul

l
l

Tightening
torqUl

Piston
stem

1
2
to
1
5

kg
m

9
to
11
ft

lbl

Piston
tem
lock
nut

1
5
to
4
0

kg
m

11
to
29
ft
lbl

Available

diaphragm
rod

Distance
measured
L

mm

in

Under

25
55
1
0059

25
65

to
26
05
1
0098

to
1

0256

26
15
to
26
55
1
0295
to
1

0453

26
65
to

27
05
1
0492
to
1
0650

Over
27
15
1
0689

COMPONENT
PARTS

The
transmission
consists
of

many

all

parts
that
are

quite
alike
in

oonstruction

yet
machined
to

very

close
tolerances
When

disassembling

parts
be
sure
to

place
them
in

order
in

part
rack

so

they
can
be

restored
in

the
unit
in

their

proper
positions
It
is

also

very
important
to

perform
func

lional
test
whenever
it
is

designated
Automatic
Transmission

12

After
inhibitor
switch
is
in

stalled
check
to
be

sure
that
it

op

erates

properly
in
each

range
For

detailed

procedure
refer
to

page
AT

40
for

Checking
and

Adjusting
lnhibi

tor
Switch

13
Check
the
length
L
between

case
end
to

rod
end
of
vacuum
throttle

valve

fully
pushed
in
Then
select

adequate
diaphragm
rod
of
corre

sponding
measured
length

1
11f1
n

1

11
1
1

f
c

dllidf

i

L

AT145

Fig
A
T
51
M

asuring
the
Dutance

L

Diaphragm
rod

length
mm
in

29
0
1
142

295
1
161

30
0

I
181

30
5
1
201

31
0
1
220

FRONT
CLUTCH

Dl
mbly

@

@

@

I
Piston

2

Coil

spring

3
Front
clutch
drum

4
Dished

plate

5
Driven

plate
I

6
R
I

etammg

plate

7

Snap
ring

8
Drive

plate
A

T146

9

Spring
retainer

10

Snip
ring

Fig
AT
52
Section
1
View

of

Fronl
Clulch

AT31
I

Pry
off

snap
ring
j
with
a

suitable
screwdriver
or

a

pair
of

pliers

Remove
a

retaining
plate
@
drive

plate
@
driven

plate
@
and

dished

plate

@
in

the
order
listed
as

shown

in

Fig
AT
52

2

Compress
clutch

springs
using

Clutch

Spring
Compressor

ST25420001
or
ST25420000
Re

move

snap
ring

@
from

spring
reo

tainer

using
Snap
Ring
Remover

ST25320001

Fig
AT
53
Removing
Snap
Ring

Note
When
Clutch

Spring
Compres

sor
ST2S420000
is
to
be
used
cut

the
toe

tips
of
three

legs
by
a

grinding
wheel

L
J

t

E
5

Eo

U

0

20mm

0
79
in

Cut
off
hatched

portion

Fig
A
T
54

Modifying
Coil

Spring

Compressor
AT
148

3
Take
out

spring
retainer

@
and

spring
2
See

Fig
AT
52

4

Blowout

piston
by
directing
a

jet

of
air
into

hole
in
clutch
drum

AT149

Fig
A
T
55

Blowing
Out
Piolon

Insp
ctIon

I

Check
for

signs
of
wear
or
dam

age
to
clutch
drive

plate

facing
If

found
worn
or

damaged
excessively

discard

Drive

plm
th

Standen

1
5

to
1

66mm

0

059
to
O

Inl

Allowable

limit

1A

mm
0
065

inl

2
Check
fOI
weer
on

snap
ring
and

for
weakened
or
broken
coil

spring

If

necessary

replace
with
new
ones

Spring
retainer
should
also
be
in

spected
fOI

warpage

sembi

1
Assembly
is
in
reverse
the
order

of

disassembly
Dip
all

parts
in
clean

automatic
transmission
fluid
before

installing

Fig
AT
56

l
ting
Clutch
PIlIte

2
After
clutch
is

a
embled
make

sure
th
t

clearance
between

snap
ring

CD
and

retaining

plate
V
is
held

within

specified
limits
If

necessary

lIy
with
other

retaining
plate
having

different
thickness
until
correct
clear

ance
is
obteined

S
1
deerence

1
6
to
2
0
mm

0
063

to
0
079
inl
Automatic
Transmission

Awilable

reteiningplate

Thickness
mm
in

10
6
0
417

10
8
0
425

11
0
0
433

11
2

0441

II
4

0
449

11
6
0
457

AT151

Fig
AT
67
Me

ring
Ring
to
PIlIte

Cleo

3

Testing
front
clutch

With
front
clutch
assembled
on
oil

pump
cover
direct
a

jet
of
air
into

hole
in

clutch
drum
for
definite
clutch

operation

AT152

Fig
AT
58

Taring
Front

Clutch

AT
32
REAR
a
UTCH

D1
mbl

AT313

1

Rear
clutch

drum

6

Snap
rina

2
Piston

7

SpriDa

3
Dished

plate
8

SDap
riJlI

4
Coil

sprina
9

Dri
plate

5

Rctainins
plate
10

Iltmm

plate

Fig
AT
59
Sectional
VielD
0

Rear
Clutch

1
Take
out

snap
ring
@
retaining

plate
@

drivc

plate
@
driven

plate

@
and

dished

plate
ID
Same
tech

nique
can
be

applied
as
in
disas

sembling
front

clutch

2
Remove

snap
ring
from
coil

spring
retainer

ST2S3200l

X

Fi6
AT
60
Remouing
SruJP
Ring

3
Blowout

piston
by
directing
a

jet

of
air
into
hole
in
clutch
drum

AT155

Fig
AT
61

Blowing
out
PWton

In

pectlon

Refer
to

page
AT
32
for

Inspection

of
Front
Clutch

As

mbly

Assemble
in

reverse
the
order
of

disassembly

Dip
all

parts
in

clean

automatic
transmission

fluid
before

assembling
Note
that
the
number
of

drive
and
driven

plates
varies
with

type

of

vehicle
For
details
refer

to
Serv

ice
Data

Specifications

I
After

rear
clutch
is
assembled

check
to
be
sure
that
clearance
be

tween

snap
ring
Q
and

retaining
plate

@
is
held
within

specified
clearance

Speelfied
d

0
8

to
1
6

mm

0
031

to
0
083
inl

AT156

Fig
AT
62

Meaiuring
Ring
to

Plate
C
canInce

2

Testing
rear
c1u
ch

Install

rear
clutch

on
oil

pump

cover

Blow

compressed
air

i
1to
oil
hole

to
test
for

definite
clutch

operation
Automatic
Transmission

II

AT1
7

Fill
A
T
63
Te

ting
Rear
Clutch

LOW
REVERSE
BRAKE

D1

mbly

I

Follow

steps
as

described
in

page

AT
27
for
Transmission

Disassembly

2
Blowout

piston
by
directing
a

jet

of
air
into

oil
hole
in

clutch

piston

In

pectlon

1
Check
drive

plate
facing
for

wear

or

demege
if

necesaary
replace

Drive

plate
thielm

Standard

1
9
to
2
05

mm

0
075
to
0
081
in

Allowable
limit

1
8

mm
0
071

inl

2
Test

piston
return

spring
for

weakness

Discard
if
weakened

beyond

use

3

Replace
defective

parts
with

new

ones

As

mbly

I

After
low

reverse

piston
is

installed
assemble
thrust

spring
ring

return

spring
thrust
washer

and

one

way
clutch
inner

race
Refer
to

Assembly
in

Transmission

page
AT

29
for

tightening
torque
and

special

service

tools

2

Insert
dished

plate
driven

plate

drive

plate
and

reiaining
plate
into

transmission

case
in
that
order
Install

snap
ring
to
secure
the
installation

AT

33
3

Without
disturbing
the

above

setting
check
to
be

sure
that
clearance

between

snap
ring
and

retaining
plate

is

within

specified
limits
If
nece

ry

use
other

plates
of
different
thickness

until
correct
clearance
is
obtained

Specified
deereM8

0
80
to
1
25
mm

0

031
to
0
049

inl

4
Blow

compressed
air
into
oil
hole

in

low
roverse
brake
to
test
for

deftnite
brake

operation

Fill
AT

64
Tuting
Low
Reverse

Broke

SERVO

PISTON

D1

mbly

I
Blowout

piston
by
dilecting
a

jet

of
air
into
hole
in

release
side
of

piston

2
Remove
servo

piston
return

spring

In

p
ctlon

Check

piston
for
wear

damage
or

other
defects
which
might
interfere

with

proper
brake

opcration

Fig
AT
65

Removing
Piaton

Fig
AT
70
MeG6Uring
Clearonce

Clearance
between
seal

ring
and

ring

groove

Stendard

0
04
to
0
16

mm

10
002
to
0
006
in

I

31earance

Seal

ring

w

I
J
7

r
11

AT1

5

II

Fig
AT
71

MeG6Uring
Clearance

As

mblr

L
Set

up
pump
housing
with
inner

and
outer

pump
gears
on
it

2

Using
Oil

Pump
Assembling

Gauge
ST2SS80001
instan

pump

cover
to

pump
houaing

AT166

Fig
AT
72

Centering
Oil
Pump

3

Temporarily
tighten

pump
secur

ing
bolts

4

Set
the
cunout
of
oil

pump
cover

within

specified
total
indicator
read

ing
Automatic
Transmission

Total
indicator

reading

Lell
than
0
07

mm
10
0028

inl

ST2SSBOOOl

AT264

Fig
AT
73
Me

ring
Runout

S

Tighten

pump
securing
bolts
to

specified
torque

r

Tightening
torque

Oil

pump
housing
to
oil

pump
cover

0
6
to
0
8

kg
m

14
3
to
5
8
ft
Ibl

Note
Be
sure
to

align
con
ter

housini
securing
bolt
holes

6

Again
check
the
runout

of
oil

pump
cover

Note
When
former
Oil

Pump
As

sembling
Gauge
is
to
be
used
make

a
screw
hole

in
side
of

it

PLANETARY
CARRIER

The

planetary
carrier
cannot
be

divided
into
its
individual

components

If

any

part
of

component
is
defec

tive

replace
the
carrier
as
a
unit

In

p
ctlon

Check
clearance
between

pinion

washer
and

planetary
carrier
with

a

feeler

Standard
d

0

20
to
0

70
mm

0
008
to
0
028
in

AT
35
uan

r

J

II
I

AT1S7

Fig
AT
74

MeG6Uring
Pinion

Waaher
to
CanUr
Clearance

Replace
if
over
0

80
mm
0
031

in

CONTROL
VALVE

Tlte
control
valve

assembly
consists

of

many

precision
parts
and

requires

extreme
care
when
it
has

to
be
re

moved
and
serviced
It
is

good

practice

to

place
parts
in
a

part
rack
so
that

they
can
be
reassembled
in

valve

body

in

their

proper
positions
Added
care

should
also
be
exercised

to

prevent

springs
and
other
small

parts
from

being
sca
ttered
and
lost

Before

assembly

dip
all

parts
in

clean
automatic
transmission

fluid
and

check
to
be
certain

that

they
are
free

of

lint
and
other
minute

particles
If

clutch
or
band
is
burnt
or
if
oil

becomes
fouled
the
control
valve
as

sembly
should
be
disassembled

and

flushed

DI
mblr

I
Remove
bolts
and
nuts
which

retain
oil
strainer
Bolts

may
be
re

moved
with
a
screwdriver
but
it
is

recommended
that

Hexagon
Wrench

lIT61000S00
and

Spinner
Handle

lIT623S0000
b
used

Automatic

Transmission

TROUBLE
DIAGNOSIS
AND
ADJUSTMENT

Since
mo
automatic

transmission

troubles

can
be

repaired
by
simple

adjustment
do

not
disassemble
im

media

tely

Firstly
inspect
and

adjust
the
auto

D1
3tic
transmission
in

place
utilizing

the
Trouble

Shooting
Chart

If
the
trouble

can
not
be
solved

by

this

procedure
remove
and
disas

semble
the
automatic
tlllnsmission

It

is
advisable

to
check

overhaul
and

repair
each

part
in
the

order
listed
in

the
Trouble

Shooting
Chart

In
the
Trouble

Shooting
Chart

the

diagnosis
items

are

arranged
ac

cording
to

difficulty
from

easy
to

difficult
therefore

please
follow
these

items
The
tlllnsmission
should
riot

be

removed
unless

necessary

2
Tests

and

adjustments
should
be

inade
on
the
basil
of

standard
values

and
the
data
Should

be
recorded

INSPECTION
AND

ADJUSTMENT

BEFORE

TROUBLE
DIAGNOSIS

TESTING
INSTRUMENT
FOR

INSPECTION

I

Engine
t

chometer

2
Vacuum

gauge

3
Oil

pressure
gauge

It
is
convenieni

to
install
these

instruments

in
a

way
that
allows
meas

urements
to

be
made
from
the
driver
s

seat

CHECKING

OIL
LEVEL

In

checkIng
the
automatic
transmis

sion
the
oil
level
and
the
condition
of

oil
around
the
oil
level

gauge
should
be

examined

every
S
ooo
Ion
3
000

miles
This
is

an

easy
and
effective

trouble

shooting
procedure
since
some

changes
in

oil
condition
are
often

linked
with

developed
troubles
For
instance

Lack
of
oil
causes
defective

opera

tion

by

making
the
clutches
and

brakes

slip
resulting
in

severe
wear

This
is

because
the
oil

pump
sucks

air

causing
oil

foaming
thus

rapidly

deteriorating
the
oil

quality
and

pro

ducing
sludge
and
varnish

Excessive
oil
is
also
bad
because
of

oil

foaming
caused

by
the

gears
stirring

up
the
oil

During

high
speed
driving

excessive
oil
in

the
transmission

often

hlows
out
from
the

brealher

Me

urlns
011
level

To
check
the
nuid

leyel
sian
Ihe

engine
and
run
it

until
normal

operat

ing

temperatures
oil

temperature
SO

to
800C

122
to
1160F

Approxi

mately
ten
minute
of

operation
will

raise

the

temperature
to

this

range

and

engine
idling
conditions

are
stabi

lized
Then

apply
the
brakes
and

move
the

transmission
shift
lever

through
aU
drive

positions
and

place
it

in

park
P

position
In
his

inspec

tion

the
car
must
be

placc
d
on
a
level

surface

The
amount
of
the
oil
varies
with

the

temperature
As
a
rule
the
oil
level

must
be

measured
after
its

tempera

ture
becomes

sufficiently

high

I
Fill

the
oil
to
the
line
H
The

difference
of

capacities
between
both

H
and

L
is

approximately
0
4

liter
J
U
S

pt
Y
Imp
pt
and

therefore
do
not

fill

beyond
the
line

H

2
When

topping

up
and

changing

oil
care
should
be
taken
to

prevent

mixing
the
oil

with
dusl
and
water

In

pectlns
oU
condition

The
condition
of
oil

sticking
to
the

level

gauge
indicates
whether
to
OVOl

haul
and

repair
the
transmission
or

luok
for
Ihe
defective

part

If
the
oil
has
deteriorated
to
a

varnish
ike

quality
it

causes
the

con

trol
valve
to
stick
Blackened
oil
indi

cates
a
burned
clutch
brake
band
etc

AT
39
In
these
cases
the
transmission
must

be

repaired

CAUTION

I
In

checking
oil
IlVal
use

special

piper
Cloth

tohandla
the
18V81

llIugi
Ind
be
careful
not
to
let
the

scraps
of

paper
end
cloth

stick
to

the

IlIUp

b
U
lutomatic
transmission
fluid

having
OEXRON
ida
ons

only
in
the
3N71
B
eutomatic
trans

mission

c

Pay
IttBntion
blcau
the
oil
to
be

used
differs
from
that
used
in
the

Nissen
Full
Autometic

TllInsmis

sion
3N71A
N8V8r
mill

thl
oils

Note
Insert

the

gauge
fully
and
take

it
out

quickly
before

splesbing
oil

edheres
to
the

gauge
Then
observe

the
level

INSPECTION
AND
REPAIR

OF
OIL
LEAKAGE

When
oil

leakage
takes

place
the

portion
near
the

leakage
is
covered

with
oil

presenting
difficulty
in

detecting
the

spot
Therefore
the

places
where
oil
seals
and

gaskets
are

equipped
are
enumerated
below

Converter

housing

Rubber

ring
of
oil

pump
housing

Oil
seal
of
oil

pump
housing

Oil
seal
of

engine
crankshaft

Bolts
of
converter
housing
to
case

2
Transmission
and
rear
extension

Junction
of
transmission
and
rear

extension

Oil
cooler
tube
connectors

Oil
pan

Oil

pressure
inspection
holes
See

Fig
AT
81

Mounting
portion
of
vacuum
dia

phragm
and
downshift
solenoid

Breather
and
oil

charging
pipe

Speedometer
pinion
sleeve

Oil

seal
of

rear
extension

To

exactly
locate
Ihe

place
of
oil

leakage
proceed
as
follows

with
the

pin
hole
of
the
internal

rotor

combined
with
the
manual

shaft
and

check
their

alignment
by

inserting
a

1
5
mm
0
059
in
diameter

pin
into

the

holes
If
the

alignment
is

correct

fasten
the
switch

body
with
the
bolts

pull
out
the

pin
tighten
up
the
screw

in

the
hole
and
fasten

the
selector

lever
as
before
Check

the

continuity

pin
with
the
lesler
If

Ihe
malfunc

tion
still
remains

replace
the
inhibitor

switch

STALL
TEST

The

purpose
of
this
test
is
to
check

the
transmission
and

engine
for
trou

ble

by
measuring
the
maximum
num

bers
of
revoiutions
o
the

cngine
while

vehicle
is
held
in

a
stalled

condition

The
carburetor
is
in

fullthrollle

opera

tion
with
the
selector
lever
in

ranges

1
2
and
I

respectively
Com

pale
the
measured

results
with
the

standard

values

Components
to
be
tested
and

test
itelJUl

I

Clutches
brake
and
band
in
trans

mission
for

slipping

2

Torque
converter
for

proper
func

tioning

3

Engine
for
overall

properly

STAU

TEST
PROCEDURES

Before

testing
check
the

engine
oil

and

torque
converter

oil
warm

up
the

engine

cooling
w

ter
to

suitable
tem

perature
by

running
at
1
200

rpm
with

the

selector
lever
in
the

range
P

for

sevcral
minutes

Warm

up
the

torque

converter
oil

to
suitable

temperature

60
to
lOOoC

140
to
2120F

I

Mount
the

engine

tachometer
at
a

location
that

allows

good
visibility

from

the
driver

s
seat
and

put
a
mark

on

specified
revolutions

on
the

meter

2

Secure
the
front
and
rear
wheels

with
chocks

and

apply
the
hand

brake

Be
SIIre

to

depress
the
brake

pedal

firmly
with
the
left
foot
before
de

pressing
the

accelerator

pedal

3
Throw
the

selector
lever
into
the

range
11

4

Slowly

depress
the

accelerator

pedal
until
the

throttle
valvc
is

fully
Automatic

Transmission

opened
Quickly
read
and

record

the

engine
revolution

when
the

engine

begins
to
rotate

steadily
and
then

release
the
accelerator

pedal

5
Shift
the
selector
lever

to
N

and

operate
the

engine
at

approxi

mately
1
200
rpm
for
more
than
one

minute
to
cool

down
the

torque
con

verter
oil
and
coolant

6
Make
similar
staU
tests
in

ranges

2
I
and
R

CAUTION

The

dill
test

operstion
81

specified
in

i18m
4

should
be

I118de
within

fiv

lIeonds

If
it
tBkes
too

long
the

oil

If

and
the
cluti
hn
blllke

and
b
nd

elll

ly
I
Suf

ficient

cooling
time
should

be

given

r

eech
test
for
the
four

IlInges

0
Z
1
end
R

JUDGEMENT

High
stall
revolution

more
than

staitdard
revolution

If
the

engine
levolulion
in

stall

condi
ion
is

higher
than
the
standard

values
it
indicates

that
onc
or
more

clutches
in
the

transmission
are

slipping
and
therefore
no

further
test

is

required

For
the

following
abnormalities

the

respective
causes
are

presumed

High
rpm
in

all

ranges
low
line

pr
ssure

High
rpm
in
0

2
and
I

and

normal

rpm
in
6R

Rear
clutch

slipping

High
rpm
in
D

and
2
and

normal

rpm
in

One

way

clutch

slipping

High
Ipm
in
R

only
Front

clutch
or
low

and
reverse
brake

slipping

To

determine
which
is

slipping

front

clutch
or
low
and
reverse

brake

a
road

test
is

needed

If
while

coasting
after

starting

with
the
levcr
in
I

range
engine

braking
does
not

work

properly
the

low

and
reverse
brake
is

slipping

Otherwise
the
front
clutch
is

slipping

Slipping
of
the
band
brake
is
diffi

cuJt
to
ascertain

However
jf
it

occurs

with

the
lever
in
1

range
engine

AT
41
revolution
increases

up
to
the
same

level

as
in
1st

range
It

is

impossible

to

check
it
in
the

stall
test

2
Standard
stall
rnoluiion

If
the

engine
revoluiion
in

stall

ondition
is
within

he
standard

values
the
control
elements
are

nOf

mally

operating
in

the

ranges
D

2n
I

and
R

Also
the

engine
and
one

way

clutch
of
the

torque
converter
are

norinal
in

performance
and

operation

The

one

way
clutch

of
the

torque

converter

however
sometimes

sticks

This
is
determined

in
the
road

test

3

Lower

stall
revolution
than
lIand

ard

revolution

If

the

engine
revolution
in

stall

condition
is

lower
than
the

standard

values
it

indicates
that
the

engine
is
in

abnormal

condition
or
the

torque
con

verter
s
one

way
clutch
is

slipping

4
O
hers

I
If

the

accelerating
performance

is

poor
until
vehicle

speed
of

approxi

mately
SO

kmfh
30
MPH
is
attained

and
then
normal

beyond
that

speed
it

can
be

judged
that
the

torque
con

verte
c

s
one

way
clutch
is

slipping

2

If
the

torque
converter

sane

way
dutch
sticks

vehicle

speed
can

not

exceed

approximately
80

kmfh

SO
MPH
in
the

road
tesl

In
such

a

case
the

torque
converter

oil
tem

perature
rises

abnormally
and
so

special
care
is

required

3
If
the

transmission
does
not

op

erate

properly
at
all
vehicle

speeds
it

indicates

poor
engine
performance

ROAD

TEST

An

accurate

knowledge
of
the
au
to

matic

transmission
is

required
for
an

exact

diagnosis

II
is

recommended
that
a

diagnosis

guide
chart
with
the
standard

vehicle

speeds
for
each

stage
of

the

up
and

down

shiftings
be

prepared
Measured

vehicle

speeds
are
to

be
filled
in

the

adjoining
column
after
each

testing

Also
it

is
advisable
to

mount

a

stopper
for

positioning
the
throttle

opening

LlNE
PRESSURE

TEST

When

any
slipping
occurs
in

clutch

or
brake

or
the

feeling

during
a

speed

change
is
not
correct
the
line

pressure

must
be
checked

Measuring
line

pressure
is

done

by
a

pressure
gatqle
attached
to

pressure

measuring
holea
after

removing
blind

pluga
locate
d
at

transmission
case

The
line

pressure
measurement
is

begun
at

idling
and
taken

step
by

step

by

enlarging
the
throttle

opening
Automatic

Transmission

For

line

pressure
data
when
shift

ing
gem
refer
to
Road
Test

1
A

sharp
shock
in

up
shifting
or

too

high
changing
speeds
are
caused

mostly
by
too

high
throttle

pressure

2

Slipping
or

incaPability
of

opera

tion
is

mostly
due
to
oil

pressure

leakage
within
the

gear
trains

or

spool

valve

LINE
PRESSURE

GOVERNOR
FEED

PRESSURE

Non
Cellfornill
models

Seden
and
Halchbeck

At

idling

Range
At
stall

test

R
Une

pressure
kg
em

psi

Range

3

0
to
5
5
43
to
7S

3

0
to
4

0
43

to
57

6

0
to
12
0
S5to
171
o

2
R

D

3
0
to
4
0
43

to
57
2
snSOSSOOI

CD

AT454

1
Line

pressure

2

Governorpressure

3
Servo
release

prenure

Fig
AT
87

Mecuuring
Line
Pre

Line

pressure

kg
cm2

psi

14
0

to
16
0
199
to

22S

94
to
11
0

134
to
156

10
0

to
12
0

142
to
171

94
to

11
0

134
to
156

At

idling
California
models
All
models

end
Non
Callfornill
modela
Wa
on

At
stall

test

R
Line

pressure
kg
cm

psi
Range
Range

R

o
4
2
to
5
6

60
to
SO

3
2

to
3
S
46
to
54
D

2

6
0
to
II
7
S5

to
166
2

3
2

to
3
S

46

to
54

AT44
Une

pressure
kg
cm2

psi

143
to

16
2

203
to
230

9
9
to
11
1
141

to
15S

10
2

to
II

7
145
to
166

9
9
to
11
1

14110
15S