automatic transmission DATSUN B110 1973 Service User Guide

AUTOMATIC
TRANSMISSION

UN

range
Neutral

Low

R

Brek

B
eke

B

x

12

VK

Th
o
I

V
lv
7

G
0

j

Lve

Fro

Lub
lc
l

Otifite

Check

Valve
D

alnValve
j

11

I
3

ThrOUle

OrOlln

Vah
f
11

J

l

8
5018

Back
up
g

Dow
ill
V
lv

V
v

P
Modif

V
lve

15

13

8Jlux

3

j
p
ssu

A
euleto
Velye
6

lL

2
Menuel

V
lv

iiJIN
NOI
M
ked
O
in

Lin
pre
lGovernor
teed

pr
e

Gove
no

pr
s

Torquecon
e

p
e5SU

ThroW

p
S
Ond

y

G
o
V

8
Primary

Goy
no
V
l

Fig
A
T
29
Oil

pressure
circuit

diagram
N

range
Neutral

AT
19

AUTOMATIC
TRANSMISSION

D

range
Low

gear

To

queCon
t
Front

Clutch
LOW

R

B

B
k

B

I

12
I

3

L

12

U
J

I

IL

CID
Vecu
7
t
l

if
Valva

V
lv
TIC
Oil

Pr

r

0

i
Or
in

lV
I

F
Ofll

Lubf
lut

Orific

Check

V
lve
O
inV

Th

onl

O
ain

V
t

ll
Dow
thih

Solenoid

ID
Pt

Modifi
Valv

24

IS

@2nd
J
dShift

V
I
ll

12

3
ht
2nd
Ih
v
tv

S

j
P

Rev
I

IO
V
lv8

Menuel

V
lv

PRND21

NOle
Marked
O
ln

I

i
pres
00
0f

pressu

c
tI
I
GO
8
no

pre
aI
SKondary

Gov
no
V

To

q
econ

te
pr
s

Th
oUI

pt
Lmli

I

P

Irfw

a
ernor
V

Fig
A
T
32
Oil

pressure
circuit

diagram
DJ

range
Low

gear

AT
21

AUTOMATIC
TRANSMISSION

D

range
2nd

gear

Q
FrO
ll

Cluteh
Low

to
R

B
e

8
eke

Torque

Con
ert

14

Throttle

Beck

up

V
l

iftV
I
a
Q

T
COU

P

R
V

A
Lubfkatlon

11

Drain

14

V
I

l
CID
V

Thro

Valli
7

If
SOle

Wo

Front

Lubrlc
at

n
Orific

Check

V

I
OralnValw

Tt
oW

Q
aln

V

l
S
P

Modit
V

2

S

13

j
P

RIGulato
Vel
@2nd
3
dShIH

V

I

13

c

33J

2nd

ShlftV
I
e

s

Manual

V

I

n

NOla
M
ked
X
r
Drein
r
D

I
U

jeeo
v
Primarv

Gov
no
Valva
Goyarno

Val
Li
p
su

aIGo
no
IMod

pr
surel

Gov
nO

pr
sur

TO

Qu
con

pr

Th
on

p

Fig
A
T
35
Oil

pressure
circuit

diagram
D2

range
2nd

gear

AT
23

AUTOMATIC
TRANSMISSION

D

range

Top
gear

Low
r

Fl

B
e

B
e

B

14

TIC
Uil

Pr

1
v

Fl

Lubfk
tlon

O
ein
14

I

Velv8

l

Front

Lub
icet
Orlfiu

Check

V

I
8
6

13

@
2nd
3rd
Shifl

Velv

13

I
O
inV

Throttle

O
in

Ve

l

1

22

21

3
lit
2nd
Shift
Ve

5

M

V

I

5

n

NOle
M

ked
O

ein

Linep
s
Go
no
f
d
P

G
ernorp

Torqu
con
tt

p
secondary

G
norv
Ime

v

Governor
v

Th
Olt

p

Fig
A
T
38
Oil

pressure
circuit

diagram
D3

range
Top

gear

AT
25

AUTOMATIC
TRANSMISSION

I
ran
e

kick
down
shift
valves
in
2nd

gear
position

iQ
Front

ClutCh
L
llIR

B
ilk

8

e

Downshift

Solenoid
Torqu
Con
t

Q

I

Throttle

Back

up

V
lv
II

iftY

h
TIC
0

A

lV

A
Lubl
tion
e

S
lO

lID
VK

Th
o
I

V
v
8
Sol

Dow

Dr

I

V
I

F
lt

Lubrice

D

Yo

t
Otific

Check

0

Throttle

Dr
n

V

mm

OJ

12

Q
ht
2rod
hif
v

S

C
Ptenu

R
ul

to
Vel

8

Menu

0

PRND2

I
L
J

Jl

No
Me
klld
er
D
in

SKond
Prim

GO
no
0

1
Go
no

V
LIne

pr
s

100
0
l
d
p
1

Goy
rno

p
eslU

s
Torque
con
er
r

pr

Th
oUl

prnsu

Fig
A
T
39
Oil

pressure
circuit
diagram
D

range
kick

down

shift
valves
in
2nd

gear
position

AT
27

AUTOMATIC
TRANSMISSION

2

range
2nd

gear

To

queCo
Low
a

R

8

ka

8
ke

Oownltlift

Solenoid

14

12

@
VK

Throt

V

I
7
Throttl

Sack

up

V
lv
@SOl

o
if
V
I

Front

Lubrk
n

Orltlc

Ch
k

V

l
Dr
n
V

1

ThroW

Drain

V
Ye
Pt

Mod
fier
V
I

IS

8Rt

@2
3rdTimi
Sl

It

V

12

3
ht
2nd

Sf
ll

5

Secor
d
Lock
V
I

3
I

@
M
nu
l

V

I

5
I1Jl
ill
Pr
ur

R
vulatO
V
I

Note
M

keel
r
D

in

a

P

imary

Go
no
V
h
Line

pr

IGo
no

teed
p
luure

Go

no
p

E2I
B
Ii
iiiIJ
To

c
U
con

t
p

Th
oUl

prn
SecOnda

y

00
0

V
lv

Fig
AT
42
Oil

pressure
circuit

diagram
2

range
2nd

gear

AT
29

AUTOMATIC
TRANSMISSION

1

range
Low

gear

Lo
Rev

B
k

Brat

Oownthift

SolenoOCl

14

T
COUP

A
uu
e

IV
hl

I

R
L
ub
c
tlon

Dr
n

It

Val
9
10
v

nHOI

V

l
in

jl

8
Sale
d

QI

Cow
ilt
V

D
nV
Front

Lubtlc
t
Oritice

ChotCk

Valv
I

I

14
Throttle

Dr

V
lv8
I

Pre

Modil
lv8

15

3
151
2nd

j
Pre
u

Re1julato
Valva

@

n

No
Marked
er
0
8in

Primary

Gove
nor
V

I
Line

p
Go
erno
feed

p
euu

GOvernor

preuu

lEII
IIIII
To

que
con
8

t8
pres
He

Th
ottl

p
Second

Go
l
Io
vel
8

Fig
A
T
45
Oil

pressure
circuit

diagram
11

range
Low

gear

AT
31

AUTOMATIC
TRANSMISSION

REMOVAL
AND
INSTAllATION

TRANSMISSION
ASSEMBLY

Removal

Installation

TRANSMISSION

ASSEMBLY

When

dismounting
the
automatic

transmission
from
a

vehicle

pay
at

tention
to
the

following

points

1

Before

dismounting
the

trans

mission

rigidly

inspect
it

by
aid

of
the

Troubleshooting
Chart
and
dis

mount
it

only
when

considered
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

vehicle

proceed
as
follows

i

Disconnect

battery
ground
cable

from
terminal

2
Jack

up
car
and

support
its

weight
on

safety
stands

Recommend
a

hydraulic
hoist
or

open
pit
be

utilized

if
available

Make

sure
that

safety
is
insured

3
Remove

propeller
shaft

Note

Plug
up
the

opening
in
the
rear

extension
to

prevent
oil

from

flowing
out

4

Disconnect
front

exhaust
tube

5

Disconnect

selector

range
lever

from
manual
shaft

6

Disconnect
wire
connections

at

inhibitor
switch
CONTENTS

AT

33

AT

33

AT

33
TRANSMISSION

CONTROL
LINKAGE

Removal
and
installation

Adjustment
AT

35

AT

36

AT

36

7

Disconnect
vacuum
tube
from

vacuum

diaphragm
and

wire
connec

tions
at

downshift
solenoid

8

Disconnect

speedometer
cable

from
rear

extension

9
Disconnect
oil

charging

pipe

10

Support
engine
by
locating
a

jack
under

oil

pan
with
a
wooden

block
used

between
oil

pan
and

jack

Support
transmission

by
means
of
3

transmission

jack

11
Detach

converter

housing
dust

cover
Remove

bolts

securing
torque

converter
to

drive

plate
See

Figure

AT
47

AT265

Fig
AT
47
Removing
torque
converter

attaching
bolt

Note
Before

removing
torque
con

verter
scribe
match
marks
on

two

parts
so
that

they
may
be

replaced
in
their

original
posi

tions
at
assembly

12
Disconnect

engine
moun
t

and

hand
lever
bracket

by

removing
two
2

rear

engine
mount

securing
bolts
and

two

2
crossmember

mounting
bolts

13
Remove

starter
motor

14
Remove
bolts

securing
transmis

sion
to

engine
After

removing
these

AT
33
bolts

support
engine
and
transmission

with

jack
and
lower
the

jack
gradually

until

transmission
can

be
removed
and

take

out
transmission

under
the

car

Note

Plug

up
the

opening
such
as
oil

charging

pipe
rear
extension

etc

Installation

Installation
of
automatic
transmis

sion
on

vehicle
is

reverse
order
of

removal

However

observe
the
follow

ing
installation
notes

Drive

plate
mnout

Turn

crankshaft
one
full

turn
and

measure
drive

plate
mnou
t
with

indi

cating

finger
of
a
dial

gauge
rested

against
plate
See

Figure
AT48

Replace
drive

plate
if

in

excess
of

0
5
mm

0
020
in

Maximum
allowable
mnout

0
3

mm
0
012
in

A

T266

Fig
A
T
48

Measuring
drive

plate

runout

2
Installation
of

torque
converter

Line

up
notch
in

torque
converter

with
that
in
oil

pump
Be

extremely

careful
not
to

cause
undue
stresses
in

parts
in

installing
torque
converter

See

Figure
A

T
49

Fig
A
T
49

Torque
converter

aligning
cut

3
When

connecting
torque
con

verter

to
transmission

measure
dis

tance
A

to
be

certain
that

they
are

correctly
assembled
See

Figure

AT
50

Distance
A

More
than
16
5
IllIll

0
650
in

A

AT117

Fig
A
T
50

Installing
torque
converter
CHASSIS

4
Bolt
converter
to
drive

plate

Tightening
torque

0
8

to
1
0

kg
Ill
5
8
to
7
2
ft
Ib

Note

Align
chalk

marks

painted
a

cross

both

parts
during
disas

sembling
processes

5

After
converter
is
installed

rotate

crankshaft

several
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
manual
and

selector
levers
in

N

8
Connect

inhibitor
switch
wires

Notes

a
Refer
to

covering
topic

under

Checking
and

adjusting

inhibitor
switch
on

page

AT
51

b

Inspect
and

adjust
switch
as

above
whenever
it
has

to
be

removed
for

service

9
Check
inhibitor
switch
for

op

eration

AT
34
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

2

1
and
R

positions

Back

up
lamp
should
also

light

when
selector
lever
is

placed
in
R

position

10
Check
level
of
oil
in

transmis

sion
For
detailed

procedure
see

page

AT
49

II
Move

selector
lever

through
all

positions
to
be
sure
that
transmission

operates
correctly

With
hand
brake

applied
rotate

engine
at

idling
Without

disturbing

the

above

setting
move

selector
lever

through
N

to
D

to
2
to
I

and
to
R
A

slight
shock
should
be

felt

by
hand

gripping
selector
each

time
transmission
is

shifted

Note
See

page
AT

50
for

checking

enigne

idling

12

Check
to
be

sure
that
line

pres

sure
is
correct

To

do
this
refer
to

relative

topic
under

Testing
line

pres

sure
on

page
AT
53

13

Perform

stall
test

as

per
the

instructions
on

page
AT

51

AUTOMATIC
TRANSMISSION

TRANSMISSION
CONTROL
LINKAGE

p
R
N

D

l

l

@

AT
35
@

1
Hand
lever

2
Hand
lever
bracket

3
Trunion

4
Cross
shaft

5

Adjust
nut

6

Upper
shift
rod

7
Cross

shaft

support

8
Hand
lever

shaft

9
Lower

shift
rod

10
Selector

range
lever
3

CD

CV

L

I

@

AT268

Fig
AT
51
Controllinhage
system