1973 DATSUN B110 drain bolt

AUTOMATIC

TRANSMISSIO
N

i

MAJOR
REPAIR
OPERATION

SERVICE
NOTICE
FOR
DISASSEMBLY

AND
ASSEMBLY

TORQUE
CONVERTER

Inspection

TRANSMISSION

Disassembly

Inspection

Assembly

SERVICE
NOTICE
FOR

DISASSEMBLY
AND

ASSEMBLY

I
It
is

desirable
that
the

repair

operations
are
carried
out
in
the

dust

proof
room

2
Due
to
the
differences
of
the

engine
capacities
the

specifications
of

component
parts
for
each

model

s

transmission

may
be

different
How

ever

they
do
have
common

adJust

ments
and

repair
as
well

as

cleaning

and

inspection
procedures
ou

tlined

hereinafter

3

During
the

repair
operations

refer
to
the
Service
Data
and

Specifi

cations
section
for
the
correct

parts

for
the

applicable
model

transmission

4
Before

removing
any
of
subas

semblies

thoroughly
clean
the

outside

of
the
transmission
to

preven
t
dirt

from

entering
the
mechanical

parts

5
Do
not
use
a
waste

rag
Use

a

nylon
waste

or

paper
waste

6
After

disassembling
wash
all
dis

assembled

parts
clean
and
examine

them

to
see
if
there
are

any
worn

damaged
or
defective

parts
and
how

they
are
affected
Refer

to
Service

Data

for
the
extent
of

damage
that

justifies
replacement

7

Packings
seals
and
similar

parts

once
disassembled
should
be

replaced

with
new
ones
as
a
rule

TORQUE
CONVERTER
CONTENTS

AT
37

AT
37

AT
37

AT
37

AT
37

AT
39

AT
39
COMPONENT
PARTS

F
rant
clutch

Rear
clutch

Low
reverse
brake

Servo

piston

Governor

Oil

pump

Planetary
carrier

Control

valve

The

torque
converter
is
a
welded

construction
and
can
not
be
disas

sembled

Inspection

I
Check

torque
converter
for

any

sign
of

damage

bending
oil
leak
or

deformation
If

necessary
replace

2
Remove
rust

from

pilots
and

bosses

completely

If

torque
converter
oil
is

fouled
or

contaminated
due
to
burnt
clutch

flush
the

torque
converter
as
follows

I

Drain
oil
in

torque
converter

2
Pour
none
Iead

gasoline
or

kero

sene
into

torque
converter

approxi

mately
0
5

liter
I
1

8
V
S

p
7
8

Imper
p

3
Blow
air

into

torque
converter

and
flush
and
drain
out

gasoline

4

Fill

torque
converter
oil
into

torque
converter

approximately
0
5

liter
I
i
8
I

pt
7
8

lmper
pt

5

Again
blow
air
into

torque
con

verter
and
drain

torque
converter
oil

TRANSMISSION

Disassembly

I
Drain

oil
from
the
end

of
rear

extension
Mount
transmission
on

Transmission
Case
Stand
ST07860000

or
ST07870000
Remove

oil

pan
See

Figure
AT
52

AT

37

T
AT
41

AT
41

AT
42

AT
43

AT
43

AT

44

AT
44

AT
45

AT
45

2
Remove
bolts

securing
converter

housing
to
transmission

case
Remove

torque
converter

3
Remove

speedometer
pinion

sleeve
boll

Withdraw

pinion

4

Turn
off

by
hand
downshift
sole

noid
and
vacuum

diaphragm
Do
not

leave

diaphragm
rod
at

this

stage
of

disassembly
Rod
is

assembled
in

top

of

vacuum
diaphragm
See

Figure

AT
53

ST07860000

AT118

Fig
AT
52

Remouing
oil

pan

Show
2
liter
engine
model

Fig
A
T

53
Downshift
solenoid
and

uacuum
diaphragm

PROPELLER
SHAFT
DIFFERENTIAL
CARRIER

Incorrect

adjustment
of

bearings
or

gears

Severe
service
due
to
an
excessive

loading

improper
use
of

clutch

Loosened
bolts
and
nuts
such
as

ring
gear

clamp
bolts

Oil

leakage
Worn
out

damaged
or

improperly
driven

front
oil
seal
or
bruised
dented
or

abnormally
worn
slide
face
of

companion

flange

Loosened
bolts

holding

gear
carrier

Defective

gasket

Loosen
filler
or
drain

plug

Clogged
or

damaged
breather

SERVICE
DATA
AND
SPECIFICATIONS

Type
of
differential

gear
carrier

assembly

Final

gear
type

Final

gear
ratio

number
of
teeth

Sedan

Coupe
Van

Drive

pinion

Preload
with
oil
seal

Preload
without
oil
seal

Thickness
of
drive

pinion
adjusting

shims
kg
cm
in

lb

kg
cm
in

lb

mm
in

Pinion

bearing
adjusting
spacer

Ring
gear

Backlash
between

ring

gear
and

pinion

Run
out
of
rear
side
of

ring

gear
mm
in

mm
in

Side

gear
and

pinion
mate

Thickness
of
side

gear
thrust
washers
mm
in

PD
17
Replace
defective

parts

Replace
defective

parts

Replace
defective

parts

Replace
the
defective
oil
seal
Ammend
the

affected

flange
with
sand

paper
or

replace
if

necessary

Tighten
the
bolts
to

specified
torque

Replace
defective

parts
with

new
ones

Tighten
the

plug

Repair
or

replace

H145A

Hypoid

3
900
39
10

7

to
9

6
1
to
7
8

6
to
8
5
2
to
6
9

From
2
74
to
3
25

0
1079
to
0
1280

Spacing
0
Q3
0
0012

Non
adjustable
collapsible
spacer

0
10
to
0
15
0
0039
to

0
0059

Less
than
0
05
0
0020

0

76
to
0
91
0
0299
to
0

0358

BRAKE

TANDEM
MASTER
CYLINDER

The

tandem
master

cylinder
allows
either
front
or
rear

brake

displaying
sufficient

braking
effect

although
a

trouble
occurs
in
one
side
of
either

front
or

rear
brake

improving
driving
safety
The

tandem

type
master

cylinder
is
manufactured

by

NABCO
or
TOKlCO
When

disassembling
and

reassem

bling
be

careful
not
to
mix
the
individual
manufacturer
s

parts

t

I

Fig
BR
4
Cross
sectional

view

of
tandem

type

master

cylinder

Removal

L
Remove
the

clevis

pin
and

separale
the

brake

pedal

from
the
master

cylinder
push
rod

2
Disconnect
the
brake
tube
from
the

master
cylinder

3
Remove
the
master

cylinder
installation
bolt

remove

the

master

cylinder
shim

and
remove
the
master

cylinder

assembly
from
the

body

Disassembly

L

Drain
brake

fluid
and

remove
the

stopper
bolt

2

Remove
the
dust
cover

remove
the

snap
ring
and

stopper
ring
and
remove
the

push
rod

assembly

3

Take
out
the

piston
mechanism

components
in

order

of
the

primary
piston
assembly

secondary
piston
assem
bly
and

piston
spring

4
Remove
the
valve

cap
and

remove
the
valve
as

sembly

Note
Disassemble
the
master

cylinder
carefully
so
that

the

sliding
surface
of
the

piston
and

piston

cup
are

not

damaged
Do
not

remove
the
fluid
reservoir

unless

really
necessary
Moreover
do

not
remove

the

piston
cup
unless
the

piston
is

replaced

Inspection

Thoroughly
clean
all

disassembled

parts
check
for

wear

damage
and
other
defective

conditions
and

replace

if

necessary

Note
Do
not
clean
rubber

parts
with
mineral
oil
since

they
are
deteriorated
Use
brake

fluid
or
alcohol

When
aloohol
is
used
however
do

not
immerse

BR
3

BRAKE

Fig
BR
27

Removing
strut

assembly
and
knuckle
arm

installation
bolt

4
Remove
the

caliper
assembly
installation

bolt
and

separate
it

from
the

strut

assembly

Fig
BR
28

Removing
caliper
assembly
instaUation
bolt

Disassembly

I
Remove

mud
and
other
contaminations
from

the

caliper
assembly
before

disassembly

2
Drain

brake
fluid
from
the
wheel

cylinder

3

Loosen
the
air
bleeder
and

depress
tha

pistons
A

and
B
into
the

cylinder
Refer
to
Pad

replacement

4
Secure
the

yoke
in
a
vise
and

tap
the

yoke
head

with
a
hammer
The

cylinder
body
can
then

be

removed
from
the

yoke
When

removing
the

cylinder

body
be
careful
not

to
allow

the

piston
A

coming
out

from
the

cylinder

BR
13
i
c
J

l
l

7

I

0

I

I

i

I

f
1

1

J
t
1

Fig
BR
29

Tapping
yoke
head

5
Remove
the

bias

ring
from
the

piston
A

6

Remove
the

retaining
rings
and

boots

from
the

pistons
A
and
B

J

l

lj

7

fI

II
l

j
B

11
I
Retaining
ring

121
Boot

Fig
BR
30

Cylinder
body
and

piston

7

Depress
and

remove
the

piston
from
the

cylinder

8
Remove
the

pislon
seal

from
the

cylinder

Note
Remove
the

piston
seal

carefully
with

fingers
so

that
the

cylinder
wall
is
not

damaged

9
Remove
the

yoke
spring
and

yoke
bias

spring
from

the

yoke

Inspection
and

repair

Thoroughly
clean
all
disassembled

parIs
and
check

them

for
the

following
items

STEERING

6

Remove
six

bolts
used

to
secure
the

steering
column

hole
cover
to
the

dash
board

Fig
ST
5

Removing
steering
column
hole
cover

7
Remove

the
shift
rod
and

select
rod
from
the

change

lever
and
select
lever
after

removing
the

cotter

pin
from

the
trunnion

8
Disconnect
the

gear
arm
from
the

crOSS
rod

9
Remove

three
bolts
used
to

secure
the

steering
gear

housing
to
the

body

Fig
ST
6

Removing
steering

gear
assembly

10

Pull
the

steering
gear
and
transmission

control

toward
the

engine
compartment

11
Remove
the
transmission
control
from
the

steering

gear
assembly
as
outlined
under
Transmission

control
DISASSEMBLY

1
Remove

the

steering
gear
arm

fIxing
nut
and

pull
out

the

gear
arm

using
a

Steering
Gear

Arm
Puller

ST27140000

2
Remove
the

drain

plug
and
drain
the
oil
from

the

steering
gear
housing

3
Loosen
the

adjusting
screw
nut
and

turn
the
sector

shaft

adjusting
screw
a

few
turns
counterclockwise

Remove

four
sector
shaft

cover

fIxing
bolts
and

pull

the
sector
shaft
cover
with

sector
shaft
from
the

gear

housing

t

I

gJ

I

I

Fig
ST
7

Removing
sector

shaft
cover

4
Remove

four
fIxing
bolts

securing
the

column

jacket

to
the

gear
housing
and

pull
out
the
main
column

jacket

assembly
from
the

gear
housing

Fig
ST
8

Removing
main
column

ST
3

ENGINE
CONTROL
FUEL
EXHAUST
SYSTEM

For
all
models
fuel
tank

capacity
has
been
increased
in

response
to
the
increased

engine
output
Location
and

mounting
strength
are

improved
for

improvement
of

safety

Sedan
40

l
101
2
US

gal

8

3
4

Imp
gal

Van
38
l
10
US

gal

8

3
8

Imp

gal

Coupe
38
l
10

US

gal

8
3
8

Imp
gal
and

completely
drain
fuel

2
Remove
the
fuel
line
connector

3
Remove
the

luggage

compartment
finishing

4
Remove
four
bolts
used
to

secure
the
fuel
tank

5
Loosen
the
hose

clamp

f

r

II

J

y
I

0

I

V

Ii

i
iJb
Also
for

piping
consideration
has
been

given
on
the

safety
To
be
more

specifically
the
fuel
line

coming
out

from
the
fuel
tank
is
laid
inside
the
rear
side
member
so

that
the

fuel
line
is

protected
from

gravel
and

other

interferences
from
road
In
the
front
floor
section
the

fuel
line
is
laid
inside
a
tunnel
and
thus
fuel
line

reaches

the

engine
compartment

In
addition
the
fuel
strainer
and
fuel
tank
outlet
units

connect
the
fuel
line
with
rubber
hoses
and
for
aU
other

sections

bandy
tube
is

used
Fig
FE
9
Drain

plug
position

Replacement

Remove
the
drain

plug
from
the

fuel
tank
bottom
6
Disconnect
cable
to
the
unit

gauge

7
Dismount
the
fuel
tank

f

I

Y

L
ll

C

jjhrr
@

Fig
FE
10
Fuel
tank
14nit
installation

FE
5

LUBRICATION
CIRCUIT

Oil
drawn

from
the
oil

pan
through
the
inlet

screen
and

tube

to
the
inlet
side
of
the
oil

pump
is
delivered

by
th

oil

pump
through
the
outlet

portion
of
the
oil

pump
and

the
oil

gallery
to
the
inlet

side
of
the
full
flow
oil

filter

and
to
the

main
oil

gallery

The
main
oil

gallery

supplies
oil
to
the

crankshaft
main

bearings
and

drilled

passages
in
the
crankshaft
and

thus

oil
is

fed

directly
from
the

main

bearings
to
the

connecting
rod

bearings

Oil

injected
from

jet
holes

on

connecting
rods

lubri

cates
the

cylinder
walls
and

pistion
pins

The
oil

distributed
from
the
main

gallery
enters
the

chain

teosioner
and
the

pad
is
held

against
the

chain

by

oil

pressure
and

spring
The
oil

also
lubricates
the

timing

chain

through
the

jet
hole

located

near
the
chain

Furthermore

lubricant
is

supplied
to
each
camshaft

bearing
through
each
crankshaft
main

bearing
and

finally

to
the
011

gallery
in
the
rocker

shaft

through
the
center

camshaft

bearing

The
rocker

arm
and
valve

are
lubricated

by
the
oil

through
the
oil

gallery
in
the

rockershaft

To
this

oil

gallery
lubricant

is

supplied
through
the

center

camshaft

bearing
as
shown

in

Figure
EL
I

OIL
PUMP

Description

The
oil

pump
assembly
is
installed
on
the
bottom
of

the

cylinder
block
and
driven

by
the
distributor

drive

shaft

assembly
The
oil

pump
is
of

a
rotor

type
The
oil

pressure
is

regulated
by
the

regulator
valve
camshaft

Removal

Engine
in
vehicle

Drain

engine
oil

2
Remove
the
frunt

stabilizer

3
Remove
the

splash
shield

board

4
Detach
the
oil

pump
body
together
with
drive

gear

spindle
ENGINE

Fig
EL
2
Removal

of
oil

pump

Disassembly

Prior
to

disassembling
check
to

determine
that
the

pump
is

defective

Take

out
a
total
of
2
bolts

securing
the

pump
cover

to
the

pump
body
The

outer
and
inner

rotors
and
drive

shaft
can

then
be

disassembled

2

Applying
a
suitable
wrench
or

spanner
loosen
off
the

regulator
valve

Note
a
When

placing
the
valve
in
a
vise
use
extreme

care
not
to
distort
the

pump
body
and
cover
in
the

jaws

b
Do

not

pull
out
the
drive
shaft

pin

securing
the

driven
shaft
and
inner
rotor
The
shaft
is

press

fitted
to
the
rotor
with
the

pin
calked

n

Trochoid

Fig
EL
Oil

pump

EL
2

COOLING
SYSTEM

Measure

temperature
when
the
thermostat

valve

just

starts

rising

U
S
A
Canada
Other

countries

Valve

opening
80
5
to
83
5

86
5
to
89
5
75
to

78

temperature
l77
to

l87
to
167

to

OCeF
183
193
173

Valve
lift
8
95
8
100
8
90

mm

C

0
31
203
0
31

212
0
31

194

in

F

C0011

Fig
CQ
5

Thermostat

inspection

If
thermostat
does
not

operate
at
the
above

specified

temperatures
it

must
be

replaced

Installation

I
When

installing
the
thermostat

apply
adhesive

Three
Bond
to
both
sides
of
the

packing
for

prevention
of
water

leakage

2

Install
the
thermostat
in
reverse

sequence
of
re

moval
RADIATOR

The
radiator
is
of

a
down
flow

type
with
an

expansion

tank

located
on
the

top
of

tube
section

Pressure
is

applied
to
the

system
and
the
relief

valve

incorporated
in
the

radiator
filler

cap
controls

the

pressure
at

approximately
0
9

kg
cm2

l3
Ib

sq
in

Fig
CO

6
Radiator
removal

Removal

I
Drain

cooling
water

2

Disconnect
radiator

upper
hose

lower
hose
and

hose
to
the
reservoir

tank

3

Detach
the
radiator

assembly
by
removing
six

fixing

bolts

Inspection

Check
for
water

leakage
and

cracks

using
a

cap
tester

If

such
defects

are
detected

repair
or

replace
the

radiator

assembly

CO
3