1973 DATSUN B110 ECU

Clearance

between
seal

ring
and

ring

groove
See

Figure
AT

97

Standard

clearance

0

04toO
16mm

0

0016

to
0

0063
in

AT162

Fig
A

T
96

Measuring
clearance

I
earance

I
Seal

rIng

0d

t
AT185

II

Fig
AT
97

Measuring
clearance

Assembly

1
Set

up
pump

housing
and
inner

and
outer

pump
gears
on
it

2

With
the
aid

of
Oil

Pump
Assem

bling

Gauge
ST255800oo
install

pump
cover
to

pump
housing
as
shown

in

Figure
AT

98

lnnrr
i

rnl

l

AT166

Fig
A
T
98

Centering
oil

pump

3

Temporarily
tighten

pump
secur

ing
bolts

4

Set
the
runout

of
oil

pump
cover

within
0

07
mm

0
0028
in

total

indicator

reading
See

Figure
A
T

99
AUTOMATIC
TRANSMISSION

AT264

Fig
A
T
99

Measuring
run

out

5

Tighten
pump
securing
bolts
to

specified
torque
0
6
to
0
8

kg
m
4
3

to
5
8
ft

Ib

Note
Be
sure

to

align
converter

housing
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
or

component
is
defec

tive

replace
the
carrier
as
a
unit

Inpsection

Check
with
a
feeler
clearance
be

tween

pinion
washer
and

planetary

carrier

See

Figure
AT
100

Standard
clearance

0
20
to
0
70

mm

0
008
to
0

028
in

Clearance

I

LJ
b

II
I

AT161

Fig
AT
100
Mea

uring
pinion
washer

to

carrier
clearance

AT
45
Replace
if

going
over
0
80
mm

0
031

in

Control
valve

The
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
restored
in

valve

body
in

their

proper
positions
Added
care

should
also
be
exercised
to

prevent

springs
and
other

small

parts
from

being
scattered
and
lost

Before

assembly

dip
all

parts
in

clean
automatic
transmission
nuid
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

Disassembly

1
Remove

bolts
and
nuts
which

retain
oil
strainer
Bolts

may
be

re

moved
with
a
screwdriver
but
it
is

recommended
to
use

Hexagon
Wrench

HT61000800
and

Spinner
Handle

HT62350000

See

Figure
AT
10
I

2
Remove

attaching
bolts
With

bolts
removed

lower
valve

body

separate
plate
and

upper
valve

body

are
free
for
removal

See

Figure

AT
102

Note
Do

not
allow
orifice

check

valve
and
valve

spring
in
lower

valve

body
from

being
scattered

and
lost

when

removing
sepa

rate

plate

HT61000BOO

HT62350000

Fig
AT
101

Removing
valve

body

c

Inspection
and

adJu
Stmenf
trouble
first
check

the

linhge
f
no

1
i

jI
fect

is
found
in
the
lin1

age
check

of

manu
a
l

liiiJ
i

the
inhibitor
switch

Th

d
1F

aI
S
t
th
I
I
f
e

a

JU
i

J
u

epara
e
e

range
se
eet

ever
rom

Iy

important
ii
s3

ns
etion
of
oil
the
lower
shift

rod
and
turn
the

range

1

level
for
the
automatiC

tran
smission
select
lever
to
N

Therefore

great
care
should

be
exer

Note

In
the

position
N

the
slot
of

cised
because
defective

adjustment
will

the
manual
shaft
is

vertical

result
in

the
breakdown
of
the

trans

By
the
use
of
the
tester
check

the

two
bIack

yellow
BY
wires

from
the

inhibitor
switch
in
the

ranges
N

and

P

and
the

two
red
bIack

RB
wires

in
the

range
R
for

continuity
Turn

range
select
lever
to
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
3
0

on

both

sides
from
each

lever
set
line
How

ever
if
its

continuity
range
is
obvi

ously
unequal
on
both

sides
the

adjustment
is

required

f

any
malfunction
is

found
un

screw
the

fastening
nut
of
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

ly
to
the

position
N

by
means
of

the
selector
lever

When
the
slot
of

the
shaft

becomes
vertical
the
detent

works
to

position
the
shaft

correctly

with

a
click
sound

Move
the

switch

slightly
aside
so

that
the
screw
hole
will
be

aligned

with
the

pin
hole
of
the
internal
rotor

combined
with
the

manual
shaft
and

check
their

alignment
by
inserting
a

1
5

0101
0
0591
in
diameter

pin
into

the
holes
If

the

alignment
is

made

correct
1
5ten
the
switch

body
with

the

bolts

pull
out
the

pin
and

tighten

up
the
screw

again
into
the
hole
and

fasten
the
selector
lever
as
before

Check
over

again
the

continuity
with

the

tester
If
the
malfunction
still

remains

replace
the
inhibitor
switch
mission

Inspection

Pull
the
selector
lever

toward

you

and
turn
it

so
far
as
p

to
1

range

where
clicks
will
be
felt

by
hand
This

is

the
detent
of
manual
valve
in
the

body
and
indicates
the
correct

posi

tion

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

tion

plate
when
it
is

released

Adjustment

This

procedure
can

be
accom

plished
by
referring
to
Removal
and

nstallation

Checking
and

adjusting

inhibitor
switch

The
inhibitor
switch
serves

to
light

the

reverse

lamp
in
the

range
R
of

the
transmission

operation
and
also
to

rotate
the

starter
motor
in
the

ranges

N
and
P

j

r@
I

If

r
f
B

@
I

Jt
@
@

c
v@

i

r
fji

AT109

1
Inhibitor

switch

2
Manual

shaft

3
Washer

4

Nut

5

Manual

plate

Fig
AT
II
0
Con
truction

of
inhibitor

witch
6
Washer

7

Nut

8
Inhibitor
switch

9

Range
select
lever

Check
whether
the

reverse
lamp

and
the
starter
motor

operate
normal

ly
in

these

ranges
If
there
is

any
t

ki

A

mm
ATIC
TRANSMISSION

STALL
TEST

The

purpose
of
this
test
is
to
check

the
transmission

and

engine
for

trou

ble

by
measuring
the
maximwn

num

bers
of
revolutions
of
the

engine
while

vehicle
is
held
in
a
stalled
condition

and
the
carburetor
is
in
full

throttle

operation
with

the
selector
lever
in

AT
51
rang
s
D
2

and
I

respectively

and

by
com

pairing
the
measured

re

sults

with
the

standard
values

Standard
stall
revolution

1
750
to
2
000

rpm

Components
to
be
tested
and
test
items

1

Clutches
brake

and
band

in

trans

mission

for

slipping

2

Torque
converter

for
function

3

Engine
for
overall

property

Stall
test

procedures

Before

testing
check
the

enigne
oil

and

torque
converter
oil

warm

up
the

engine

cooling
water
to
the

suitable

temperature
by

warming
up

ope
ration

at

1
200

rpm
with
the

selector
lever
in

the

range
P

for
several
minutes

and

warm

up
the

torque
converter
oil

to

the

suitable

temperature
60
to
IOOoC

140
to
2120F

1
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

completely
with
chocks
and

apply
the

hand
brake
Be

sure
to

depress
the

brake

pedal
firmly
with
the
left
foot

before

depressing
down
the
accelerator

pedal

3
Throw
the

selector
lever
into
the

range
D

4

Slowly
depress
the

accelerator

pedal
down
till
the

throttle
valve
is

fully
opened
Quickly
read
and
record

the

engine
revolution
when
the

engine

begins
to
rotate

steadily
and

then

release
the
accelerator

pedal

5
Turn
the

selector
lever
into
N

and

operate
the

enigne
at

approxi

mately
1

200

rpm
for
more
than
one

minute

to
cool
down
the

torque
con

verter
oil
and
coolant

6
Make
similar
stall
tests
in
the

ranges
2
I

and
R

Note

The
stall
test

operation
as

spec

ified
in

the
item
4
should
be

made
within
five
seconds
If
it

takes
too

long
the
oil
deterio

rates
and
the

clutches
brake

CHASSIS

Mureover
excessive
sleeve

yoke
spline
ta
transmission

main

spline
lash
and

wear
of
both

front
and

rear
universal

joints
will

cause
vibrations

affecting
riding
comfort

REMOVAL

Disconnect

the

flange
yoke
and
the

pinion
flange
by

removing
bolts

at
the
rear
end
of
the

propeller
shaft

In

this
case
draw
out
the
sleeve

yoke
from
the
end

of

transmission

holding
the

disconnected
rear
end

of
the

propeller
shaft

Fig
PD
2

Removing
pmpeller
shaft

Before

disassembling
put
match

mark
on
all

com

ponents
of
shaft
so
that

they
are
reassembled
in
the

former

position
and
that
the

propeller
shaft
balance

may

not
be

deviated

DISASSEMBLY

Primarily
do

not
disassemble
the

propeller
shaft
since

it
has

been
balanced
as
an

assembly

When

disassembly
is

unavoidable
for

necessary
repair

the

following
instructions

apply

1

Remove

snap
rings
from
the

yoke
and
raise
the

propeller
shaft

2
Remove

snap
rings
used
to

secure
the

journal

bearings
in
the

yoke
flange
with
a

pair
of

pliers

If

the

snap
rings
cannot
be

snapped
out
of
the

groove

tap
the
end

of
the

bearing
with
a

wooden
mallet

slightly

This
will
relieve
the

pressure
from
the

snap
ring

3

Slightly
remove
the

journal
bearing
end

until
the

opposite
bearing
is

pushed
out
of
the

yoke
flange
Turn
over
and

secure
the

assembly
in
a
vise
Drive
the

first

spider
bearing
back
out

of
its

lug
by
tapping
the

projected

end

of
the

spider

4
Use
a
brass

drift
with
a

flat
face

5
Wash
and
clean
the

bearing
and

shaft
with

cleaning

solvent

1

W

SNAP
RING

V
I
1Iiff

BEARING

ASSEMBLY

JOURNA

V

Fig
PD
3

Exploded
view

of
universal

joint

INSPECTION

Check
all

parts
and

repair
or

replace
if
defective
When

replacing
the

journal
unit
be
sure
to

replace
as

an

assembly

Replace
if
the

journal
pin
exterior
is

damaged
or

scarred

2

Replace
if
the

yoke
hole
is
worn
or

damaged

3

Replace
if
the

snap
ring
is

damaged
or
deformed

4

Replace
if
the

bearing
needle
roller
is

damaged
or

worn

5

Replace
both
sleeve

yoke
and
main
shaft
if
the
sleeve

yoke
and
main
shaft

spline
are

damaged
or
worn

6

Replace
if
the

propeller
shaft
tube
surface
is
cracked

or
Indented

ASSEMBLY

The

propeller
shaft
is

reassembled
in

reverse

sequence

of

disassembly

Install
the

spider
on
the

yoke
flange

PD
2

PROPELLER
SHAFT
DIFFERENTIAL
CARRIER

Insert
the

journal
into
the

yoke
flange
Tap
the

journal

bearing
into
the

yoke
flange
using
a
brass

drift
smaller

than
the
hole
in
the

yoke
Tap
the
other

bearing
into
the

opposite
end
of
the

yoke
flange
until
the

bearing
is
in
line

with
the

snap
ring
grooves

With

a

pair
of

pliers
install
the

snap
rings
on
both
ends

of
the

yoke
flange

Insert
the

flange
assembly
in
the
sleeve

yoke

Place
the
other

yoke
bearing
into
the

opposite
end
of

the

yoke
and

tap
this

bearing
into
the

yoke
until
the

bearing
is
in
line
with
the

snap
ring
grooves
Install
the

snap
rings
on
both
ends
of
the

yoke
When
all

parts
are

assembled

check
the

spider
and

surroundings
for

tightness

When
the
clearance
is
excessive

adjust
with

over
size

snap
rings
as
follows

Snap
ring
over
size

Thickness
Color

mrn
in
identification

I
46
0
0575
White

I
48
0
0583
Yellow

1
50
0
0591
Red

1
52
0
0598
Green

1
54
0
0606
Blue
1
56
0

0614

1
58
0
0622

SERVICE
DATA
AND

SPECIFICATIONS

Distance
between

joints
mm

in

Tube
outer
diameter
x
thickness

mm
in

Sleeve

yoke
specification

Outer
dia
x
inner
dia
x

pitch

mm
in
Brown

No
mark

I

189
46
8

68

9
x
1
6

2
713
x
0
0630

Involute

spline

20
x
80

x
I

0
787

x
3
150

x

0
0394

Permissible
unbalance

gr
cm
in
oz

rpm
15
0
2
4
000

Allowable
max

swinging

torque
of

spider
journal
10
9

kg
cm
in
lb

Propeller
shaft

run
out
mm
in

Tightening

torque
of

companion
flange
nuts

kg
m
ft
Ib

TROUBLE
DIAGNOSES
AND
CORRECTIONS

Condition
Probable
cause

Noise
and

vibration
Distorted

propeller
shaft

Unbalanced

propeller
shaft
Corrective
action
less
than
0
6
0

024

2
0
to
2
7

I4
to
20

Using
exclusively
an
arbor

press
restraighten

If
distortion
is
excessive

replace
propeller

shaft

Check
for
balance
If
unbalance
exceeds
the

limit

replace
it

Recorrect

Replace
the
sleeve

yoke

Replace
the

journal

Replace
with

correct

snap
ring

Retighten
nuts
to

the

specified
torque
Incorrectly
positioned
flange
yoke

Excessive

spline
lash

Worn
or

damaged

journal

Inconect

snap
rings

Loose
nuts

securing
the

flange
yoke
to
the

companion
flange

PD
3

FRONT
AXLE
FRONT
SUSPENSION

FRONT
AXLE
AND

SUSPENSION
ASSEMBLY

Removal

1
Jack

up
the

vehicle
and

support
the
vehicle
with

stands
See
the
Section
GL

2
Remove
the

hub
nuts
and
remOve
the
wheel

3
Remove
the

splash
board

4
Loosen
the
brake
tube

connecting
nut
remove
the

brake
hose

locking
spring
withdraw
the

plate
and
remOve

the
brake
hose
from
the
strul

assembly
bracket

Fig
FA
3

Detaching
brake
hose

Note
Be
careful
not
to
allow
dust
entering
the
brake

hose

5
Remove
the

stabilizer
from
the
body

Fig
FA
4

Removing
stabilizer
6
Remove
cotter

pin
from
the
side
rod
socket
ball

joint

of
the

steering
remove
the
castle
nut
and
separate
the

side
rod
socket
from
the
knuckle
arm

Fig
F
A
5

Removing
side
socket

from
knuckle
arm

7

Loosen
the
tension

rod
securing
bolts
and
nuts
and

remove
the
tension
rod

Fig
F
A
6

RemotJing
tension
rod

FA
3

FRONT
AXLE

FRONT
SUSPENSION

Reinstalla

tion

First
check

rubber

parts
such
as
tension

rod
mount

ing
bushing
stabilizer
bar

bushing
etc

for
deterioration

crack
and
other

defective
conditions
and

replace
as

required

2

Reinstall
the
front

axle
and

suspension
assembly
in

reverse

sequence
of

removal

noting
the

following
matters

1

Tighten
the

transverse
link

mounting
bolts
and

stabilizer

bar

body
side
installation

bolt
to
the
raled

tightening
torque
under

the
unladen
vehicle

2
Install

the
stabilizer

bar
so
that

the
white

paint

identification
mark

on
the

stabilizer
bar
is

faced
to
the

left
side

of
the

vehicle

Tighten
the

stabilizer

connecting

rod
with

tightening
torque
from
0
9
to

1
2

kg
m
6
5
to

8

7
ft
lb

through
bushings
The
same

tightening

torque

0

9
to
1
2

kg
m
6
5

to
8
7

ft
Ib
also

applies
the
frame

side

installation
bolt

Two

types
of

transverse
link
side

installation
bolts

length
below
neck
35

mm
1
378
in
and
25

mm
0

984

in
are
used
and
for
both

types
the

tightening

torque
is

2
2

to
3
0

kg
m

15
9
to
217
ft
lb

WH
ITFPAI
Nli

F

OR
IDENjIFICATION

H

Fig
FA

13

Identification
mark
on
stabilizer
I
J
1

Rubber
hush

2

Washer

3

Stabilizer
con

necting
rod

4

Transverse
link

5
Washer

6

Stabilizer
bar

Fig
FA
14

Stabilizer

connecting
rod

bushing
layout

3
Install
the
tension

rod
so
that
LH
mark

on
the

tension
rod

is
faced
to

left
side
of
the
vehicle
and
R

H

mark
is

to

right
as

shown
in

Figure
FA
IS
Make

sure
that

the

body
side

bushing
is
in
the

correct

position
and

tighten
the
tension
rod

securely
with

tightening
torque

from

5
5
to

6
5

kg
m

39
7

to
47
0

ft
lb

ii
j

iY

l

fj

i

f

i

Of
1

0

Fig
FA
15

Mark
on
the
end

of
tension

rod

il

1

Washer

2

Rubber
bush

3
Frame

4

Collar

5
Tension
rod

Fig
FA
16

Tension
rod

body
side

bushing
layout

FA

5

CHASSIS

Tightening

torque
of

front

suspension
cross
member

and

body
is
3
2
to
4
0

kg
m
23

1
to
28

9
ft

Ib

5

Tightening
torque
of
bolt

used
to

secure
the

upper

portion
of
the
strut

assembly
on
the

body
is
1
6
to
2
1

kg
m
11
6
to
15
2ft

lb

FRONT
AXLE

Removal

I

Jack

up
the
vehicle
remove
the
wheel
and

discon

nect
the
brake
hose
at

the
strut
outer

casing
bracket

unit

For
details
see
Removal
of
front
axle
and

suspension

assembly

2
Remove
the
brake

caliper
installation
bolts
and

remove
the

caliper
assembly
Disc

type
brake

3

Remove
the
brake
druOL

Drum

type
brake

4
Remove
the
hub

cap
with
a
flal

headed
screwdriver

or
other

proper
tool
and
hammer
Be

sure
to

tap
lightly

5

Remove
cotter

pin
from

the
wheel

bearing
lock
nut

and
remove

the
lock
nut

6

With

the
wheel

bearing
washer

and
wheel

bearing

installed
on

the
wheel
hub

remove
the

wheel
hub
from

the

spindle

In
the

case
of
a
disc

type
brake
the

wheel
hub

may
be

removed

with
the
disc
rotor
installed

on
the
wheel

hub

Fig
FA
17

Removing
wheel
hub
7
Remove

the
return

spring
and
brake
shoes
remove

brake
disc

assembly
installation
bolts

and
remove
the

brake
disc

assembly
from
the

spindle
Drum

type
brake

Fig
FA
IS

Removing
brake
disc
a
ssembly

8

Remove
baffle

plate
set
screws
and
remove

the

baffle

plate
Disc

type
brake

Fig
FA
19

Removingbaffleplate

9

Utilizing
two

grooves
inside
the
wheel
hub

tap
and

remove

the
wheel

bearing
outer
race
from
the
hub

Fig
FA
20

Removing
wheel

bearing
outer
race

FA
6

FRONT
AXLE

FRONT
SUSPENSION

t
t

Fig
FA
26

Returning
wheel

bearing
lock
nut

4
Turn
the
wheel
hub
a
few
turns
both
clockwise
and

counterclockwise

again
to
allow
the

bearing
breaking
in

measure

bearing
rotation

starting
torque

apply
a
cotter

pin
to
secure
the
nut
if
the
measured

starting

torque
is

within
the
rated
value
and
install
the
hub

cap

hub

cap

Wheel

bearing
rotation

starting

torque

9
0

kg
cm
7
8

in
1b

4
0

kg
cm
3
4
7

in
1b

At
the

hub
bolt

1
57

kg
3
461b

New

bearing

0
7

kg
1

54lb
Used

bearing

No
slackness

should
exist

toward
the
axis
direction
New

bearing

Used

bearing

J

o
i
@
j
Be

sure
to
remove
the

brake

pad
Disc

type
brake

Correctly
measure

starting
force
toward

tangential

direction

against
the
hub

bolt

Fig
FA

27

Measuring
wheel

bearing
ro
ation

starting
torque

STRUT
ASSEMBLY

The

strut

assembly

consisting
of
a

strut
outer

casing

with

spindle
forms
a

cylinder
between
the

piston
rod

guide
and

bottom
valve

The

inner

components
are

precisely
assembled
and
no

dirt
and

foreign
matter

intrusions
are

permitted
The

components
such

as

piston
rod

piston
rod

guide
cylinder

and

bottom
valve
are

handled

together
as

an

assembly

When

replacing
them
be

sure
to

replace
the
inner

components
as

an

assembly

1

2

3

4

5

6

7

8

9

10
Front

spring

Bound

bumper

Piston
rod

self

locking
nut

Washer

Strut

mounting
insulator

Strut

mounting
bearing

Oil
seal

Upper
spring
seat

Dust
cover

Strut

assembly

Fig
FA
28
Strut

assembly
components

FA
l1