DATSUN 210 1979 Service Manual

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

Automatic
Transmission

SERVICE
DATA
AND

SPECIFICATIONS

General
specificetions

Automatic
transmission
model
3N71B

2
0
I

Stall

torque
ratio

Transmission

gear
ratio

1st

2nd

Top

Reverse
2
458

1458

1

000

2

182

Oil
Automatic
transmission

fluid

Dexron

type

Oil

capacity
5
5liten
SUUS

qt
4Ulmp
qt

Approximately
2
7
liten
2UUS

qt

2

lmp
qt
in

torque
converter

Spec
lcetlona
end

edJuatment

Automatic
transmission

assembly

Model
code
number

Non
California
models
Sedan
and
Hatchback

Non
Califomia
models

Wagon

California
models
All
models
X0l61

X0165

X01l5

Torque
converter

assembly

Stamped
mark

on
the
TIC

Front

clutch

Number
of

drive

plates

Number
of
driven

plates

Clearance

Thickness
of

retaining
plate
l2
C

mm
in

mm
in
3

3

1
6
to
2
0
0
063
to
0
079

10
6
0
417

10
8
0
425

11
0

0
433

11
2
0
441

II
4
0
449

11
6
0
457

Rear
clutch

Number
of

drive

plates

Number
of

driven

plates

Clearance

Thickness
of

retaining
plate
nun

in

mm
in
3

3

0
8
to
1
6
0
031
to
0
063

8
35
0
3287

AT
51

Automatic
Transmission

Low
eve

se
br
ke

Number
of
drive

plates

N

wnbe
of
driven

plates

Clearance

Thickness
of

retaining
plate
ml11
in

mm
in
3
3

0
80
to
1
25
0
031
to
0

049

15
8
0
622

16
0
0
630

16

2
0
638

16
4

0
646

16

6
0
654

16
8
0

661

Brake
band

Piston
size

Big
dia

Small
dia
mm
in

60

236

40
1
57

Control
valve

assembly

Stamped
mark

on
strainer

Non
California
models
Sedan
and
Hatchback

LEA

California
models
All
models
and
Non
California
models

Wagon
LRJ

Governor

assembly

Stamped
mark
on

governor
body
35

Stall

revolution

AI4

engine

AI5

engine
rpm

1

900
t02
200

1

850
to
2

150

TI
htenln

torque

Drive

plate
to

crankshaft

AI4

AI5
kg
m
ft
lb

Drive

plate
to

torque
converter

Converter

housing
to

engine

Hexagon
bolts
with
washer

Hexagon
flange
head
bolts

Transmission
case
to
converter

housing

Oil

pan
to

transmission
cue

Servo

piston
retainer

to
transmission

case

Piston

stem
when

adjusting
band
brake

Piston
stem
lock
nut
8
0

to
9
0
58
to
65

8
5

to
9
5

61
to
69

4

0
to
5

0
29
to
36

2

0
to
2
5
14
to
18

1

6
to
2
2

I2to
16

4
5
to
5
5
33

to
40

0
5
to

0
7

3
6
to
5
1

0
5

to
0
7

3
6
to
5
1

1

2
to
1
5
9
to
11

1
5
to

4
0

II
to
29

1
3
to
1

8
9
to
13

0
55
to
0
75
4
0
to

5
4

0
25
to
035
1
8
to
2
5

0
25
to
0
35
1
8
to
2
5

0
5
to
0
7
3
6
to
5
1
One

way
clutch

inner
race
to
transmission

case

Control

valve

body
to

transmission
case

Lower
valve

body
to

upper
valve

body

Side

plate
to
control
valve

body

Nut
for
control
valve

reamer
bolt

AT
52

Automatic
Transmission

Oil
strainer

to
lower

valve

body

Governor
valve

body
to
oil
distributor

Oil

pump
housing
to

9il

pump
cover

Inhibitor
switch
to
transmission
case

Manual
shaft
lock
nut

Oil
cooler

pipe
to
transmission
case

Test

plug
oil

pressure
inspection
hole

Support
actuator

parking
rod

inserting
position
to

rear
extension

Turn
back
two

turns
after

tightening
0
3
to
0
4

0

5
100
7

0
6
100
8

0
5
to

0
7

3
0
10
4
0

3
0105
0

14102
1

0
810
I
I

SPECIAL
SERVICE
TOOLS

Kent
Moore

No

Tool
number

tool
name
Reference

page
or

Fig
No

ST07870000
Transmission
case
stand

ST07860000
J

25607

Fig
AT
26

ST25850000

Sliding
hammer
J
25721

Fig
AT
30

HT69860000

Snap
ring
remover

Fig
AT
33

AT
53
Tool
number

tool
name

GG930
I
0000

Torque
wrench

ST25420001
Clutch

spring
compressor

ST25420000

ST25320001

Snap
ring
remover
2

2
to
2
9

3
6

to
5

1

4
3

to
5
8

3
6
to
5
1

22
to
29

22
to
36

10
to

IS

5
8

to
g

O

Kent
Moore
No

Reference

page
or

Fig
No

J
25703

Fig
AT
43

J
26063

Fig
AT

53

Fig
AT
60

125710

Fig
AT
53

Fig
AT

60

Tool
number
tool

name

51
25570001
Hex
head
extension

5T25570000

5T2549oooo
50cket
extension

51
25512001

HT62350000

5pinner
handle

5T25160000

Torque
driver

L

Q
Automatic
Transmission

Kent
Moore

No

Reference

r
Tool
number

tool
name

J
25718
51
25580000
Oil

pump
assembling

gauge

Fig
AT
38

Fig
AT43

J
25713

Fig
AT43

Fig
AT
75

Fig
AT
78

Fig
AT
81

Fig
AT
82

AT
54
HT61000800

Hexagon
wrench

v

51
25055001
Oil

pressure
gauge
set
Kent
Moore

No

Reference

01

Fog
No

J
25719

Fig
AT

72

Fig
AT
75

Fig
AT
78

Fig
AT
8l

Fig
AT
82

25695

Fig
A
T
87

DATSUN

2JO
Model
83
J

0
Series

SECTIONPD

PROPELLER
SHAFT

DIFFERENTIAL
CARRIER

CONTENTS

PROPELLER
SHAFT

INSPECTION

GENERAL
INSPECTION

PROPEllER
SHAFT
VIBRATION

REMOVAL
AND
INSTAllATION

REMOVAL

INSTAllATION

DIFFERENTIAL
CARRIER

REMOVAL

PRE
DISASSEMBl
Y
INSPECTION

DISASSEMBLY

FINAL
DRIVE
ASSEMBLY

DIFFERENTIAL
CASE

INSPECTION

ASSEMBl
Y
AND

ADJUSTMENT

PRECAUTIONS
IN
REASSEMBLY

ASSEMBLY
OF
DIFFERENTIAL
CASE

ADJUSTMENT
OF
DRIVE
PINION

HEIGHT

ADJUSTMENT
OF
DRIVE
PINION

PRELOAD
PD
2

PD
2

PD
2

PD
2

PD
2

PD
2

PD
2

PD
3

PD
3

PD
3

PD
4

PD
4

PD
4

PD
4

PD
5

PD
5

PD
5

PD
6

PD
6
AQJUSTMENT
OF
SIDE
BEARING

SHIMS

INSTAllATION

REPLACEMENT

OF
FRONT
Oil
SEAL

SERVICE
DATA
AND

SPECIFICATIONS

PROPEllER

SHAFT

GENERAL
SPECIFICATIONS

SERVICE
DATA

TIGHTENING
TORQUE

DIFFERENTIAL
CARRIER

GENERAL

SPECIFICATIONS

SERVICE

DATA

TIGHTENING
TORQUE

TROUBLE

DIAGNOSES
AND

CORRECTIONS

PROPEllER
SHAFT

DIFFERENTIAL
CARRIER

SPECIAL
SERVICE
TOOLS
PD

7

PD
9

PD
9

PD
lO

PD
lO

PD
lO

PD
lO

PD
lO

PD
l0

PD
lO

PD
ll

PD
ll

PD
12

PD
12

PD
13

PD
15

Rropeller
Shaft
Differential

Carrier

PROPELLER
SHAFT

INSPECTION

GENERAL
INSPECTION

I

Check

propeller
shaft
tube
sur

Cace
for
dents

or
cracks
If

damaged

replace
with
an

assembly

2
Check

journal
for

axial

play
If

there
is

play
replace
propeller
shaft

mbly

Note

JournaI
cannot
be
disassem

bled

PROPELLER
SHAFT

VIBRATION

To
check
and

correct
an
unbal

anced

propeller
shaCt

proceed
as
Col

lows

L
Remove

undercoating
and
other

foreign
material

which
could

upset

shaft
balance
and

check
shaft
vibra

tion

by
road
test

2
If
shaft
vibration
is
noted

during

road

test
disconnect

propeller
shaft

et

differential
carrier

companion
flange

rotate

companion

flange
180

degrees

and

reinstall

propeller
shaft
ff

3

Again
check

shaft
vibration
If

vibration
still

persists
replace

propel

ler
shaft

assembly

REMOVAL
AND

INSTALLATION

REMOVAL

I

Raise
car
on
hoist
Put
match

malks
both

on

propeller
shaft
and

companion

flange
so
that
shaft

can
be

reinstalled
in
its

original
position

2
Remove
bolts

connecting
pro

peller
shaft
to

companion

flange

PD459

Fig
PD
2

Removing

Propeller
Shaft

PD
2
Tightening
torque
kg
m
ft
b

@
2
410
3
3
1710

24

PD468

Fig
PD
l

PropellerSha
t

3

Draw
out

propeller
shall
sleeve

yoke
from
transmission

by

moving

shaft
realWard

passing
it
under
rear

axle

Plug
up
rear
end
of

rear
extension

housing
to

prevent
oil

leakage

Note
Remove

propeller
aheCt

care

Cully
so
as
not

to

demege
spline

sleeve

yoke
and
rear
oil
seal

INSTALLAnON

To

inS
aJI
reverse
the

foregoing

removal

prOCedure

CAUTION

Align

propeller
shift
with

com

penion

fllnge
of

differentiel
Clrrier

ulling
reference
marks

prl
1Cribed
in

Remova

procedure
and

tightsn

them
with
bolts

Failure
to
do

so

could
resuh
in

driving
vibration

fJ
Tightening
tOlquo

Propellol
sheft

to

companion

f1enge
bolts

2
4

to
3
3

kg
m

117
to
24
ft
b

Propeller
Shaft
Differential
Carrier

DIFFERENTIAL
CARRIER

fQ

@

1

11
Thrust
washer

12

Ring
gear

13
Differential
case

14
Lock
strap

15
Drive

pinion

16
Pinion
height
adjusting
washer

17
Pinion
rear

bearing

18

Collapsible
spacer

19
Side

bearing
cap

20
Gear
carrier
1

Companion
flange

2
Oil
seal

3
Pinion
front

bearing

4
Sidebearing

5
Side

bearing
adjusting
shim

6
Thrust
walher

1
Side

gear

8

Lock

pin

9
Pinion
mate
shaft

10
Pinion
mate
Tightening
torque
kg
rn

ft
lb

@
14
to
30

101
to

211

@
6
0101
0
43
to
51

@
5
0
to
5
0
36
to
43

@
1

6
to
2
4

12
to
11

PD446

Fig
PD

3
Differential
Carrier

2

Visuany
inspect
parts
for
wear

of

damage

3

Rotate

gears
to
see
that
there
is

any

roughness
which

would
indicate

damaged

bearings
or

chipped
gears

Check
the

gear
teeth
for

scoring
or

signs
of
abnonnal

wear
Measure

pre

load
of
drive

pinion

4

Set

up
a
dial
indicator
and
check

the
backlash
at
several

points
around

ring

gear
Backlash
should
be

specified

value

Ring
gear
to
drive

pinion
backlash

0
10

to
0
15

mm

0

0039
to
0

0059
inl
spected
before

any

parts
are
removed

from
it

These

inspections
are

helpful
in

fmding
the
cause
of
a

problem
and
in

detennining
the

corrections
needed

Mount
carrier
on
Differential

Carrier
Attachment
ST06320000
REMOVAL

I

Jack

up
rear
of

car
and

sup

port
it

by

placing
a

safety
stand
under

rear
axle

case
Drain

gear
oil

2
Remove

propener
shaft
and
rear

axle
shafts

These
works
can
be
done

by

referring
to
Rear

Axle
and
Rear

Suspensionu

3
Loosen
off
bolts

securing
differ

ell
tial
carrier

to
rear
axle
ca
se
and

take
out
differential

gear
carrier

as

sembly

PRE

DISASSEMBI
Y

INSPE
CTION

Differential
carrier
should
be
in
5

Check
the

gear
tooth
contact

with
a
mixture

of
recommended

Fig
PD
4

Holding
Differential
Carrier

PD

3

I

powder
and
oil

applied
sp
hingly
to

all

ring
gear
teeth

For
the
tooth

contact

pattern
see

paragraph
dealing
with
tooth
contact

pattern
adjustl1ll
nt

DISASSEMBLY

FINAL
DRIVE
ASSEMBLY

I
Put

match
marks

on
side

bearing

caps
and

carrier
and
remove
side

bearing
caps
and

take
out
differential

case

assembly

using
Slide
Hammer

HTI2400000

PD266

Fig
PD

5

Removing

Diffe
ntial

Ca
e

A
embly

Note
Care
should
be
taken

not
to

confWle
the

left
end

right
hand

bearing
caps
and

bearing
outer

races

so
that

reassembly
will
be

easily

carried
out
with
the
same

parts
in

the

original
position

2

Rel
love
drive

pinion
nut

using

Drive
Pinion

Flange
Wrench

ST31530000
and

pull
off

companion

flange
using
a
standard

puller

Fig
PD

6
Removing
Drive
Pinion

Nut

3
Extract
drive

pinion
assembly
to

the
rearwards

by

tapping
the

front
end
Propeller
Shaft
Differential
Carrier

of

drive

pinion
with
a
soft
baminet

Drive

pinion
can
be
taken
out

together

with
rear

bearing
inner

race

collapsi

ble

spacer
and
washer

4

Remove
oil
seal
and
take
out

front

bearing
inner

race

Note

Oil
seal

must
not
be
reused

5

Hold
rear

bearing
inner

race
with

Drive

Pinion
Rear

Bearing
Inner
Race

Puller
ST30031000
and
extract
from

drive

pinion
with

a

press

STJ0031000

r

1

i
9

PD205

Fig
PD
7

Removing
Pinion

Rear

Bearing
I
nfUr
Race

6

To
remove
outer
races

of
both

front

and
rear

bearings
apply
a
brass

drift
to

race
side
surface
and

with

draw

them

by
tapping
the

top
of

drift

with

a
hammer

PD268

Fig
PD

B
Removing
Pinion
Front

and
Rear

Bearing
Outer
Race

DIFFERENTIAL
CASE

I

When

replacing
side

Wle
Differenliai

Side

Puller
ST3305
1001

and

ST33052000
bearing

Bearing

Adapter

PD
4
Fig
PD
9
Removing
Side

Bearing

Note

a

Puller
should
be
bandlOd
with
care

in

catching
the

edge
of

bearing

inner
race

b
Be
careful
not
to
confuse
left
and

right
band

parts

2

Rel
love
ring
gear
by
sp
readJ
lg

out
lock

straps
and

loosening

ring
gear

bolts
in

diagonally

3

Punch
off

pinion
mate
shaft
lock

pin
from

ring
gear
side

using
Solid

Punch
KV3810Ig00

KV3810I800

PD319

Fig
PD
I0
Removing
Lock
Pin

Note
Lock

pin
is
slaked
et

pin
hole

mouth
on
differential

case
Do
not

punch
it
off

forcibly
without

checking
how
it
is

staked

4

Draw
out

pinion
mate
shaft
and

remove

pinion
ID3
tes
side

gears
and

thrust
washers

Note

Put
mams
on

gear
end
thrust

waaher
so
that

they
can
be
re

installed
in
their

origiital
positions

from
which

they
were
removed

INSPECTION

Thoroughly
clean
all
disassembled

parts
and

examine
them
to
see

that