1973 DATSUN B110 hood open

BODY

Fig
BF
24

Adjusting
dove
tail
bolt

Notes
When

inspecting
the
hood
lock
note
the

following

a
Check

to
be
sure
that
dove
tail
bolt

retaining

nut

VI
is

tightened
securly
with

specified

tightening
torque

b
Check
catcher
of
the

safety
catch
lever
for
wear

and
the

spring

ID
I
for
weakness
and
break

If
the

spring
is
broken
the
hood

may
be
unlocked

and

rapidly
open
during
driving

c
Check
the
female
lever
for
smooth
and
conect

operation
and
the

spring
@
for
weakness
and

break

If
the
female
lever
does
not
mova

smoothly

angaging
stroka
with
tha
dove
tail
bolt
will
ba

reduced
and
it

may
be

disengaged

d
Measure
the
di
S6
to
check
the

dimension
A
The
dimension
B
should
be

mora
than
8
5

mm
10
335
in

BF
16
GAUGE

r

B
A

A
5
0

mm
0
197
in

B
8
5
mm
0
335
in

Fig
BF
25

Saftey
catch
ever

position

Lubrication

When
check
or

adjust
the

hood
lock
lubricate
the

pivot
catcher
and

return

spring
ID
of
the

safety

catch
lever

@
thoroughly
Also
lubricate
the

lever

of
the
hood
lock
femel

ID
for
smooth
and
correct

operation
See

Figure
BF

26

LUBRICATING
POINT

Fig
BF
26

Lubricating
points

BODY

FRONT
FENDER
AND
FRONT
END

CONTENTS

FRONT
FENDER

Removal

FRONT
BUMPER
BF
17

BF
17

BF
18

FRONT
FENDER

i
RADIATOR

GRILLE

OUTSIDE
MIRROR
BF
18

BF18

1
Front
fender

2
Cowl

top
sealer

3
Front
fender
sealer

4
Cowl

top
5
Side

dash
board

6
Front

pillar

7
Front

bumper
8
Front

bumper
stay

9
Front

bumper
side
bracket

10

Bumper
side
bracket
shim

Removal
Fig
BF
27

Front

fender
and

front
end

components

I

Open
the
hood
disconnect
the

battery
terrninal

for

the
sake
of

safety
and
disconnect

wirings
for
the

head

lamp
and
side
marker

lamp
at
their

connecting
terminals

2
Remove
the
front

bumper
radiator

grille
and

radiator

grille
surround

3
Remove
the

sm

moulding
and

holding
the
fender

remove
it

Fig
BF
28

Removing
front
fender
I

BF
17

Installation

Install
the
door

glass
and

regulator
in
reverse

sequence

of

removal

Reinstall
the

seal
screen
after

correctly
adjusting
door

window

closing

SIDE

WINDOW

Removal

I
Remove
the

lock

pillar
moulding
and

remove
the

side

window
handle
set

screws
from
the

body
side

2

Loosen
the
side

window

hinge
installation
screws

and

remove
the

side
window
BODY

7
I
I

I

c

t

2

3
Side
window

glass

Side

window

hinge

Side

hinge
cover
4
Side

window
handle

5
Handle
shim

6
Catch
handle
bracket

Fig
BF

59
Side

window
construction

WINDSHIELD
AND
REAR
WINDOW

CONTENTS

REMOVAL

INSTAllATION

REAR
WINDOW
ELECTRIC

DEFROSTER

Option
SF

31

SF

32

SF
33

REMOVAL

1
Place

a

protective
cover
over

the
hood
front
fenders

instrument

panel
and
front
seat

2

Remove

rear
view
mirror

support

3

Remove

windshield

wiper
arm

assembly

4
On

inside
of

body
loosen
the

lip
of
the
rubber

channel
from

spot
welded

flange
along
the

top
and
sides

of

windshield

opening
With

the

palm
of

the
hand

apply

pressure
to

glass
near

edge
At
the

same
time

use
a

blunt

putty
knife
or
other
suitable
tool

and

carefully
assist

rubber
channel
over

spot
welded

flange

5

After
windshield

rubber
channel

is
free
from

spot

welded

flange
with
aid

of

helper

carefully
lift

windshield

assembly
frorn

body
opening
and

place
it
on
a

protected

bench
Removal
and
installation

Specifications

I

nspection
and

repair

WATERlEAK

CORRECTION
BF
34

SF

34

SF

34

SF
36

Fig
BF
60

Removing
windshield

Note
The
windshield

chrome

moulding
are
installed
in

the

rubber
channel
and
should
be
removed

prior
to

removing
rubber
channel
from
the

gla55

SF
31

ENGINE

Caution

lock
the
front

and
rear
wheels

by
fully

pulling
the

parking
brake
lever
before
con

ducting
this
test

Fig
ET
32

Checking
for
operation
of
vacuum

advance

system

If

any
objection
is

found

by
the
check

mentioned

above

either
of
the

following
defects

may
be
the

cause

Poor
connection
or

broken
harness
and
fuse

2
Air

leakage
resulting
from

poor
connection
of
vacu

um
tube

3
Incorrect

operation
of

Top
switch

4
Defective

operation
of
vacuum

cutting
valve
sole

naid

5
Incorrect

operation
of
thermo
switch

Testing
of

Top
switch

1
Make
sure
of
insulation
between
lead
wire

terminal

of
transmission
switch
and
switch

body

2

Disconnect
lead
wires
at
the
switch

and
connect

ohmmeter
to
tenninals

3
Ohmmeter

should
indicate

infmity
co
when
shift

lever

is
in

Top
gear
position
And
it
should
indicate

zero
at
other

gear
position
including
Neutral

posi

tion

4
If

it
does
not

work

properly
in

step
3

replace
the

switch
with
a
new
one

Testing
of
thermo
switch

I

MaJ
e

sure
of

insulation
between
lead
wire
terminal

of
thermo
switch
and
thetmo
switch

body

2

Disconnect
lead
wire

at
switch
and
connect
ohm

meter
to
terminals
Ohmmeter
should
indicate
zero
when

temperature

indicate
the

passenger
compartment
is
above
l30C

550F

4
If
it
does

not
work

properly
in

step
3

replace

thermo
switch
with
a
new

one

AUTOMATIC

TEMPERATURE

CONTROL
AIR
CLEANER

A
T
C
AIR

CLEANER

Replacing
carburetor
air
cleaner

filter

The

paper
element

viscous

type
has
been

specially

treated
to

eliminate
bother

of

cleaning
until

replacement

It

should
be

replaced
with
a

new
one
at

regular
intervals

or
more
often

according
to
the

operating
conditions

Checking
hot
air
control
valve

Inspection

Among
the

possible
troubles
of
this
device
the

most

liable
is
the

permanent
opening
of
valve

This
trouble
is
not

noticed
in
warm
weather
but
in

cold
weather

appears
as

poor

performance
of

engine

such

as

tardy
acceleration
hesitation
or

engine
stall
In

such

case
first

inspect
this

device
before

checking
the

carburetor

Another
trouble
which

might
be

expected
is
that
the

underhood
air
is

kept
closed

by
the
valve

regardless
of

the

temperature
of
suction
air
around
the

sensor
while

the

engine
is

running
This
ttOuble

appears
in
the

form

of

extremely
excessive
fuel

consumption
or
decrease
in

power

The

inspection
of
this
device

should
be

proceeded
as

follows

Fig
ET

33
Correct

position
of
hoses

ET
20

EMISSION
CONTROL
AND

TUNE
UP

Appearance

1
First

inspect
whether
vacuum
hoses

are
connected

to
correct

positions

2

Inspect
hoses

for
cracks
distortion
or

plugging

Checking
of
vacuum
motor

I

With

engine
shut
down

inspect
the

position
of
valve

placing
a
mirror
at
the
end
of
inlet

pipe
for

inspec

tion

The
correct
condition
of
valve
is
that
it

keeps
the

inlet
of
underhood
air

open
and
that
of
hot
air

closed

Otherwise

inspect
the

linkage
of
valve

Fig
ET
34

Inspecting
valve

position

2
Disconnect
hose
at
vacuum

motor
inlet
and
direct

ly
apply
vacuum
of
manifold
to
vacuum
motor

by

connecting
another
hose

sucking
by
mouth

may
be

substituted
for
this

process
If
underhood
air
inlet
is

closed

by
valve
valve
is
in

good
condition

Inspect

linkage
if
found
otherwise
And
then
no

defect
is

found
even
in

linkage
it

signifies
the
trouble
of

vacuum
motor

Fig
ET
35

Checking
vacuum
motor

ET
21
3
The
valve

shows
correct
condition
if
it

keeps

underhood
air
inlet
closed
when
the

passage
in

the
hose

is

stopped
by
twisting
or

clamping
it
while

applying

vacuum
If
otherwise
it
is
an
indication
of

leakage

taking
place
in
the
vacuum
motor

4
When
defect
is
found

in
vacuum

motor

through
this

check
replace
the
air
cleaner

assembly

Checking
of
sensor

I
Perform
the

engine
test

by
keeping
the

temperature

around
the

sensor
below
300C
860F
Make

sure
that

the

engine
is
cooled
down

before
the
test
is
conducted

2
Before

starting
the

engine
make
certain
that
the

valve

on
underhood
air
side

fully
opens

3
Start
the

engine
and

operate
it

at
an

idling
speed

The
valve
is
in

good
condition

if
underhood
air
side

fully
closes

immediately
after

starting

4

Carefully
watch
the
valve

to
ascertain
that

it

gradually
begins
to

open
as
the

engine
warms

up
But

when
the
ambient

temperature
is
low
it
takes

con

siderable

length
of
time

for
the
valve
to

begine
to

open

or
in
some
case
it

hardly
opens
This
should

not

however
be

regarded
as
trouble

If
the
valve
does

not

operate
satisfactorily
or
if
the

condition
of
the
valve
is

questionable
further
conduct

the

following
test

5
Remove

the
air

cleaner
cover
and

put
a
thermister

or
a
small
thermometer
as
close
to
the

sensor
as

possible
with
adhesive

tape
Install
the

air
cleaner

cover

again

Fig
ET
36

Checking
sensor

1

FUEL

SYSTEM

When
the

temperature
of

suction
air
around
the
sensor

reaches
430C

1l00F
and
above
the
sensor

actuates
to

open
the
air

control
valve

When
the

temperature
of

suction
air
around
the
sensor

further
rises
and

reaches
above
490C

I200F
the
air
control
valve

completely

opens
to

prevent
the

entrance
of
hot

air
and

aHows

underhood
air

alone
to
be
introduced

into
the
carburetor

See

Figure
EF4

u

C
I

1f1

lL
GJ

J
To
manifold

ECOOB

j
1
Air
inlet

pipe

2
Air
control
valve

3

Diaphragm
spring

4

Diaphragm

5
Vacuum
hoses

6
Air
bleed
valve

fully

open

7
H
t
air

pipe

8

Temperature
sensor

a5

mbly
Under
hood
air

I
I

Fig
EF
4

Underhood
air

delivery
mode

during
hot

engine
operation

The
air
control

valve
acts
in

the
manner
described

above
the

temperature
of
suction
air

around
the
sensor
is
always
kept
about
460C

I150F
See

Figure
EF
5

r
9

t
t
T
I

I

I

fY
ID

I

J
To
manifold

E
C009

I
Air
inlet

pipe

2
Air
control
valve

3

Diaphragm
spring

4

Diaphragm

5

Vacuum
hoses

6
Air

bleed
valve

partially

open

7
Hot
air

pipe

8

Temperature
sensor

assembly
Under
hood
air

J

Hot
air

Fig
EF
5

Regulating
air

delivery
mode

EF
3

ENGINE

When
the

engine
is

operating
under

heavy
load
the

air
control
valve

fully
opens
the
underhood
air

inlet
to

obtain
full

power
regardless
of
the

temperature
around

sensor

TEMPERATURE
SENSOR

Removal
and

installation

Removal

Hatten
the

tabs
of

clip
with

pliers

2
Pull
out
hoses

Note
Note
the

respective
positions
of
the
hoses
from

which

they
were
removed

3

Pry
the

tab
of

clip
with
a
screwdriver

4
Take

off
the
sensor
and

clip

I

@

f
6

7

CID

f

j
EC019

1

Pipe

2
Catch

3
Fixed
with
adhesive

4
Hose

5
Tab

6

Clip

7

Gasket
rubber

Fig
EF
6

Removing
sensor

Installation

I
Install
the

sensor
and

gasket
assembly
in
the

proper

positions

EC020

Fig
EF
7

Installing
sensor
This
control

of
carburetor
air

temperatures
allows

leaner
carburetor

calibration
with

accompanying
reduced

emissions
than

conventional
controls
and

also
eliminates

carburetor

icing

2
Insert

clip
Be

sure
to
hold
the

sensor
at
the

portion

A
in

Figure
EF
7
to
avoid

damage

Press
fit
the

clips
into
the

pipe
while

straightening
the

tabs

Note
Use

care
not
to

damage
the
sensor

EC021

Fig
EF
B

InseTting
clip

3
COIUlect
the
hoses
to
their

proper
positions

EC022

Fig
EF
9

Connecting
hoses

EF
4

CHASSIS

ENGINE
REMOVAL
AND
INSTALLATION

CONTENTS

PR
ECAUTIONS

REMOVAL
ERA

ERA

PRECAUTIONS

Be
sure
to
use
fender
cover

so
that
the

body
is

not

damaged

2
When

lifting
the

engine
or
when

jacking
up
the

engine
pay
attention
for

safety
and

carry
out

operation

correctly
so
that
the

parts
are
not

damaged

REMOVAL

I

Removing
hood

Open
the
hood

remove
four
installation
bolts
and

remove
the
hood

2
Disconnect

the

battery
cable
from
the
terminal

3

Removing
radiator

Drain
water

from
the

radiator
disconnect
two
radiator

hoses
remove

four
radiator
installation
bolts
and
remove

the
radiator

Fig
ER
8
Removin
radiator

4

Removing
cables
and
hoses

Disconnect
the

following
cables
hoses
and
wires

High
voltage
cable
between

ignition
coil
and

distribu
INSTAllATION
ER
6

tor

Cable
to
the
thermal
transmitter

Cable
to
the
oil

pressure
switch

Cable
to
the

primary
side

of
the
distributor

Cable
to
the

starting
motor

Fuel
hose

Cable
to
the
alternator

Heater
hose
for
model
with
heater

only

Wires

for
accelerator
and
choke
The

operation
will
be

carried
out

more

easily
by
removing
the
air
cleaner

Fig
ER
9

Right
side

of
engine
compartment

Fig
ER
10

Left
side

of
engine
compartment

ERA