1979 DATSUN 210 oil pressure

CD

@

I

I

TL

@
@

AT290

Assembl

I
Prior
to

assembly
dip
all

parts
in

clean

automatic
transmission
fluid

Reverse

disassembly
procedure
to

assemble
brake

2
Use
extreme
care
to
avoid
dam

aging
rubber

ring
when

installing
seal

lace

3
Blow

compressed
air

from

apply

side
of

piston
to
test
for
definite

piston
operation

Fig
AT
67
Te

ling
Pi
ton

Apply
Side

4
With

apply
side
of

piston
plugged

with
thumb
blow

compressed
r
into

cylinder
from
release
side
If
retainer
is

raised
a
little
it
is

an
indication
that

attaching
bolts
are
loose

calling
for

retightening
Automatic
Transmission

I
Anchor
end

pin

2
Band
strut

3

Apply

4

Release

S
Return

spring

6

Band
servo

piston
stem

7
Band
servo

piston

8
Servo
retainer

9
Brake
band
usembly

10

Transmission
cue

Fig
A
T
66
Sectional
Voew
of
SenJo
PUlOn

Fig
AT
68
Te

ting
Pi
ton

Rele
ide

GOVERNOR

D1sessembl

I

Separate
governor
from
oil
dis

tributor

by

unscrewing
attaching
bolts

2
To

disassemble

secondary
gover

nor
remove

spring
seat

spring
and

secondary
governor
valve
from

valve

body
in
that

order

To
control
valve

Governor

preuure
IS
I

a

@

From
control

val
e

I
Line

preS
UJe

I

I

Primary

governor

2

Secondary
govern
r

3
Governor
valve
body

Fig
AT
69
Te

ling
SecondQry

Governor
AT090

4
Oil
dj

tributor

5

Output
shaft

AT
34
3
If

primary
governor
is

to
be
dis

assembled
for

any

purpose
remove

spring
seat

primary
governor
valve

spring
and

spring
seal

Inspection

I

Check
valve
for
defective
condi

tion

Replace
spring
if
found
weaken

ed

beyond
use
Defective

piston

should
also

be

replaced
with
a
new

one

2
Examine
to
see
if

primary
gover

nor
slides

freely
without

binding

3
To
determine
if

secondary

gover

nor
is
in

good
condition
blow
ir

under
light

pressure
into
hole
at
A

and
listen
for
noise

like
thaI
of
a

model

plane

Assembl

Reverse

disassembly

procedure
to

assemble

governor

Note
Do
not
confuse

spriDp
Sec

ondary

spring
is

than

1

governor
sprinS
Af

ter
insteIIation
check
thet

spring
is

not
deflected

OIL
PUMP

D1sessembl

I
Free

pump
cover
from

pump

housing
by
removing

allaching
bolts

2
Take
out
inner

and
ouler

gears

from

pump
housing

Note
Be
cerefnl
not
to
confuse
Ie

specti
sides
of
inner

end
outer

geon

Inspection

I

Inspect
for
wear
or

damage
to

gear
teeth

Replace
rub
bel

ring
if

found

damaged
beyond
use

2

Using
a

straight
edge
and
feelers

measure

pump
and

gear
clearances
as

follows

Clearance
between

inner
or
outer

gear
and

pump
cover

SUndin
deer1lnee

0
02
to
0

iJ4
mm

0
001
to
0
002
in

Replace
if
over
0
08
mm
0
00
11

in

Automatic
Transmission

Inspection

I
Check
valves
for

sign
of

burning
tension
if

necessary

replace
5

Check
oil

passages
in
valve

body

and
if

necessary
replace
4
Examine

for

any

sign
of

damage
for

sign
of

damage
and
other
condi

2
Check
to

be
certain
that

oil
or

score
marks
on

separate
plate
If
tions

which
might
interfere
with

prop

strainer
is
in

good
condition
If
found

left
unheerlcd
oil

will

bypass
correct
er
valve

operation

damaged
in

any
manner
discard
oil

passages
causing
many
types
of

6
Check
bolts
for

stripped
threads

3
Test
valve

springs
for
weakened
abnormalities
in
the

system
Replace
as

required

Valve

spring
chart

Mean
coil
Installed

Wiredia
No
of

Free

length

Valve

sprma

mm
in
dia

active
coil

mm
in
Length
Load

mm
in

mm
in

kg
lbl

Manual
detent
1
3
6
0
15
0
32
4

26
5
5
5

0
051
0
236
1
276
1
043
12
1

Pressure

regulator
1
2
10
5
13
0
43
0
23
5
2
8

0
047
0
413

1
693
0
925
6
2

Pressure
modifier
0
4

8
0
5
0
18
5
9
0
0
1

0
01
6
0
315
0
728
0
354
0

2

2nd
shift
0
6

6
0
f

16
0
32
0
16
0
0
625

1st

0
024
0
236
1
260
0
630
1
378

2nd
3rd
shift
0
7
6
2
18
0
41
0
17

0
1

40

0
028
0
244
1

614
0

669
3

09

2nd
3rd

timing
0
7
5
5
15
0
32
5
27
0
0
55

0
028
0
217
1
280
1
063

1
21

Throttle
back

up
0
8
6
5

14
0
36
0
18
8
1
92

0
031
0
256

1417
0
740
4

23

Solenoid
downshift
0
5
5
0
12
0
22
0
12
5
0
60

0
0217
0
197
0
866
0
492

1
32

Second
lock
0
55
5
0
16
0
33
5
21
0
0
60

0
0217
0
197

1
319
0
827
1
32

Throttle

relief
0
9
5
6

14
0
26
8
19
0
2
19

0
035
0
220
1

055
0
74g
4
83

Orifice
check
0
23

4
77
12
0
15
5
11

5
om

0
0091

0
lg78
0
610
0
453
0
02

Primary
governor
0
45
8
3
5
0
21
8
7

5
0
215

0
0177
0327
0
858
0
295
0
474

Secondary

governor
0
7
8
5
5
5
25
2

10
5
1
10

0
028
0
335
0
992

0
413
2
43

T
37

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

Place
the
vehicle
in
a

pit
and

by

sampling
the
lealeed
oil
deiermine
if
it

is
the

torque
converter
oil
The

torque

converter
oil
has

a
color
like
red
wine

so
it
is

easily

distinguished
from

engine

oil
or

gear
oil

Wipe
off
the

lealeing
oil
and

dust

and
detect
the

spot
of
ill

lell8e

nonflammable

organic
solvent
such
as

carbon
tetrachloride
for

wiping

Raise
the
oil

tcmperature
by

op

erating
the

engine
and
shift
the
lever

to
D

to
increase
the
oil

pressure

The
sp

Q
of
o
1

1I8
u

J1en
be

found
more

easily

Note
As

oil

leakage
from
the
breath

er
does
not
talee

place

except
when

running
at

high
peed
it

iSimpos

sible
to
ate
this

lealcage
with

vehicle

stationary

CHECKING
ENGINE
IDLING

REVOLunON

The

engine

idling
revolution
should

be

properly
adjusted

If
the

engine
revolution
is

too
low

the
e

gine
does
not

operate
smoothly

and
if
too

high
a

strong
shocle
or

creep
develops
when

changing
over

from
ON
to

Dn
or
R

CHECKING
AND

ADJUSTING

KICK

WN

SWITCH

AND

DOWNSH
FT

SOLENOID

When
the
Ieickdown

operation
is

not
made

properly
or
the

speed

chang

ingpoint
is
too

high
check
the
kick

down
switch
downshift
solenoid

and

wiring
between
them
When
the

igni

tion

Ieey
is

po
iti
ned
at
the
1st

stage

and
the
accelerator

pedal
is

depressed

deeply
the
switch

contact
hould

be

closed
and
the
solenoid
should
clicle
If

it
does

not
click
it

indicates
a
defect

Then
check
each

part
with
the

testing

inatrumen15
Auto
lT1atic

Transmissiqn

Fi
J
A
T
84
Down

ltift

Sole
id

Note
Watch
for
oil

leekage
from

tnnsmission
case

INSPECTION
AND

ADJUSTMENT
OF

MANUAL

LINKAGE

The

adjustmcnt
of
manual

linkage

i

equany
important
as

Inspection
of

Oil
Level
for
the
automatic
transmis

sion
Therefore

great
care

should
be

cxercised
oecause

incorrect

adjustment

will
result
in
the

breakdown
of
the

transmission

Inspection

pun
the
selector
lever
toward

you

and
turn
it
as
far
as
p
to

range

where
clicks
will
be
ell

by
the
hand

This
is
the

detent
of
manual
valve
in

the
valve

body
and
indicates
the

corrett

position
of
the
lever

Inspect
whether
the

pointer
of

selector
dial

corresponds
to
this

point

and
also
whether
the
lever
comes
in

alignment
with
the

stepping
of

posi

iion

plate
when
itis
released

CHECKING
AND
ADJUSTING

INHIBITOR

SWITCH

The
inhibitor
switch

lights
the

re

verse

lamp
in
the

range
R

of
the

transmission

operation
and
also
rotates

the

starter
motor
in

the

ranges
N

and
P

AT
40
i

j

tI

IlV

@

@

AT

I

Inhibitor
switch

2
Manual
shaft

3
Washer

4

Nut

5
Manual

plate

Fi
J
AT
85
Comtruction

of
Inhibitor

Switch
6
Nut

1

Washer

8

Inhibitor
wilch

9

Ran
q
Iect
lever

Check
w

ethcr
he
leverse

lal
1p

and

the
starter
motor

operate
nonnal

Iy
in
these

ranges
If
there
is

any

trouble
first
check
the

inkage
If
no

defect
is

fo
nd
in

the

Ii
leage
check

tlie

inhibitor
Swi
ch

Separate
the
manual

lever
from
the

remote
control
selector
rod
and
turn

the

range
select
lever
to
N

Note
In
the

position
N

the
slot
of

the

manual
shaft
is
vertical

Using
the
tester
check
the
two

black

yellow
BY
wire

from
the
in

hibitor
switch
in

the

ranges
N
and

p
and
the
two
red
blacle
RB
wires

in

the

lange
R
for

continuity
Turn

range
select
lever
in

both
directions

from
each
lever

set

position
and
check

each

continuity
range
It
is

normal
if

the

electricity
is
on
while
the
lever
is

within
an

angle
of
about
30

on
both

sides
from
each
lever
set
line
How

ever
if
its

continuity
range
is

obvioUs

ly
u
nequal
on

both
sides

adjustment
is

required

If

any
malfunction
is

found
un

screw
the

fastening
nut
o
the

range

selector
lever
and

two

fastening
bolts

of
the
switch

body
and
then

remove

the
machine
screw

under
the
switch

body
Adjust
the
manual

shaft
correct

Iy
to
the

position
N

by
means
of

the

selector

leVer

When
the
slot
of
the

shaft
becomes
vertical
the
detent

worles
to

position
the
shaft

correctly

with
a

clicking
sound

Move
the
switch

slightly
aside

so

that
the

scie
hole
will
be

aligned

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

JUDGEMENT
IN
MEASURING

LINE

PRESSURE

Low

idling
line

pressure
in
the

ranges
D
2

R
and
P

This
can
be
attributed
to
trouble
in

the

pressure
supply
system
or
too
low

output
of

power
caused

by

I
A

worn
oil

pump

2
An
oil

pressure
leak
in
the

oil

pump
valve

body
or
case

3
A

sticking
regulator
valve

2
Low

idling
line

pressure
i

n
cer

tain

ranges
only

This
is

presumably
caused

by
an
oil

leak
in
the
devices
or
circuits
con

nected
to
the
relevant

ranges

I
When
there
is

an
oil

leaJi
in

the

rear
clutch
and

governor
the

line

pressure
in
on
2
and
I

are
low

but
the

pressure
i

nonnal
in

R

2
When
an
oil
leak
occurs
in

the

low
and
reverse
brake
circuit
the
line

pressure
in

oR
and
P
are
low

b
t

the

pressure
is

normal
in

0
2

and

I

3

High
idling
line

pressure

Thi
is

presumably
caused

by
an

increased

aC

1ulT
t
rott
e

pr
ssure

owing
to
a

leak
in

the
vacuum
tube
or

diaphragin
or
by
an
increased
line
Automatic
Transmission

pressure
due
to
a

sticking
regulator

valve

Vacuum

leakage
is
checked

by

directly
measuring
the

negative

pres

sure
after

removing
the
vacuum

pipe

A

puncture
of
the
vacuum
dia

phragm
can
be

easily
ascertained

because
the

torque
converter
oil
is

absorbed
into
the

engine
and

the

exhaust

pipe
emits
white
smoke

4
Item
to
be
checked
when
the

Ii

e

pressure
is

increasing

In
this

c
1eck
the
line

pressure

should
be
measured
with
vacuums
of

300

mmHg
Il

SI

inHg
and
0

mmHg

0

inHg
in

accordance
with
the
staIl

test

procedure

i
If
the
line

pressure
does
not
in

crease

despite
the
vacuum
decrease

check
whether
the
vacuum
rod
is

i

corporated

2

If
the
line

pressure
does
not
meet

tile
standard
iUs

caused
mostly
by
a

sticking
pressure
regulating
valve

pres

sure

regulating
valve

plug
or

amplifier

TROUBLE
SHOOTING

CHART

INSPECTING
ITEMS

I

Inspection
with
automatic
trans

mission
on
vehicle

AT
45
A

Oil
level

B

Range
select

linkage

C
Inhibitor
switch
and

wiring

D

Vacuum

diaphragm
and

piping

E
Downshift

solenoid
kickdown

switch
and

wiring

F

Engine
idling

rpm

G

Oil

pressure
throttle

H

Engine
stall

rpm

I

Rear
lubrication

J
Control
valve
manual

K
Governor
valve

L

Band
servo

M
Transmission
air
check

N
Oil

quality

o

Ignition
switch
and
starter
motor

P

Engine
adjustment
and
brake
in

spection

2

Inspection
after

inspecting
auto

matic
transmission
on
vehicle

m
Rear

clutch

n

Front
clutch

q
Band
brake

r
Low
and
reverse
brake

s
Oil

pump

t

Leakage
of
oil

passage

u
One

way
clutch
of

troque
converter

v

One

way
clutch
of
transmission

w
Front

clutch
check
ball

x

Parking
linkage

y
Planetary
gear

Automatic
Transmission

TROUBLE
SHOOTING
GUIDE
FOR
3N71B

AUTOMATIC
TRANSMISSION

Ordel
Test
item

Checking
Oil
level

gauge

j
Downshift
solenoid

3
Manual

linkage

4

Inhibitor
switch

5

Engine
idling
rpm

6
Vacuum

pressure
of
vacuum

pipe

7

Operation
in
each

range

g

Creep
of

vehicle

Stall
test
1
Oil

pressure
before
t
sting

2
Stall
test

3

Oil

pressure
after

teSling

Road
test
L

Slow
acceleration

Ist
2nd

2nd
3rd

2

Quick
acceleration

Ist
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
R
N
0
2
and

ranges
with
selector
lever

Check
whether
starter

operates
in
N
and
p

ranges
only

and
whether
reverse
lamp
operates
in
R

range
only

Check
whether

idling
rpm
meet
slandard

Check
whether
vacuum

pressure
is
more
than
450

mmHg

17

72

inHg
in

idling
and
whether
it

decreases
with

increasing
rpm

Check
whether
transmission

engages
positively
by

shifting

N

0
N

2
N
to
I

and
N
R

range

while

idling
with

brake

applied

Check
whether
there
is

any
creep
in

0
2

and

R

ranges

Measure
line

pressures
in
D
2
I
and
R

range
while

idling

Measure

engine
rpm
and
line

pressure
in
0
2
t

and

R

ranges
during
full
throttle

operation

Note

Temperature
of

torque
con
erter
oil
used
in

test

should
be
from
6

to
lOO

C
140
to
2120F

i
e
suf

ficiently
1

up
but
not

o
heeted

CAUTION

To
cool
oil
between
IIch
mil

test
for
OH
ZH
1
H

Ind

RH

nnges
idle

engine
i
e

rpm
It
Ibout

1
200

rpm
for

more
thin
1
minutll
in

P

nnge
MeeRlr
ment
time

mUlt

not
be
more
then
5

seconds

Same
as
item
1

Check
vehicle

speeds
and

engine
rpm
in

shifting
up
1

st

2nd

range
and
2nd
3rd

range
while

running
with
lever
in

D

range
and

engine
vacuum

pressure
of
about

200

mmHg

7
87

inHg

Same
as
item

1
above

except
with

engine
vacuum

pressure
of

o

mrnHg
0

inHg
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

19
25
31

37
43

MPH
in

OJ
range

AT
49

Oldel

Others
Automatic
Transmission

Test
item

4
Shift
down

Or
O
O

5
Shift
down

Or
I

1

6
Shift
down

0
2

7
Shift

up

1
1

8
Shift

up
or
down
when
start

ing
in

2

ranae

9

Parking

Abnormal
shock
oil

leakage
Procedure

Check
vehicle

speeds
and

engine

rpm
in

shifting
down
from

3rd
2nd
1st

sequentiaUy
while

coasting
with

accelerater

pedal
released
in
0

range
and

engine
vacuum

pressure
of
about
450

mmHg
17
72

inHg

Check
for
shifti

ng
do
n

I
I
nd

engine
blaking
and

further
for

shifting
down
I
I
and

engine
braking
tel

shifting
the
leyer
into

I

range
with
the
accelerator

pedal

released
and
the

engine
vacuum

pressure
of
0

mmHg
0

inHg

while

driving
at
about
50
km
h
30

MPH
in
0

range

Check
for

quick
shifting
down

OJ
2
and

engine
braking

after

shifting
the
lever
into
2

range
while

driving
at
about

50

km
h
30
MPH
in

0

range

Further
chec
for

locking
of
the
transmission
i

2nd

gear

ratio

regardless
of
vehicle

sPeed

Check
for
failure
of
the
transmission

to
shift

up
during

acceleration
when

starting
in

range

Check
the
transmission
for
not

shifting
up
or
down

during

acceleration

or
deceleration
when

starting
in

2

range

Confirm
that
yehicle
will
notmoye
on

grade
when

shifting

to
pn

range

Enter
into
record
conditions
observed

durq
these
lests

such
as

gear
noise

abnormal
clutch
noise

and
acceleration

performance

AT

50