heater DATSUN B110 1973 Service User Guide

ENGINE

Checking

cooling
system
hoses

and
connections

Check

cooling
system
hoses

and

fiHings
for
loose

connections
and
deterioration

Retighten
or

replace
as

necessary

Inspection
of
radiator

cap

Apply
reference

pressure
0
9

kg
cm1
13

psi
to

radiator

cap
by
means
of
a

cap
tester
to

see
if
it
is
in

good
condition

Replace
cap
assembly
if

necessary

ET012

Fig
ET
5

Testing
radiator

cap

Cooling
system

pressure
test

With
radiator

cap
removed

apply
reference

pressure

1
6

kg
cm1
23

psi
to
the

cooling

system
bv
means

of
a

tester
to
check

for
leaks

at
the

system
compo

nents

Water

capacity

with
heater

4
9
l
I
Y
US

gal
l
i

Imp
gal

without
heater
4
2

l

I
i
US

gal
i

Imp
gal

Fig
ET
6

Testing
cooling
system
pressure
Checking
vaccum

fittings
hoses

and
connections

Check
vacuum

system
fittings
and
hoses
for

loose

connections
and

deterioration

Retighten
if

necessary

replace
any
deteriorated

parts

Checking

engine
compression

Compression
pressure
test

Note
To
test

cylinder

compression
remove
all

spark

plugs
and
hold
tester

fitting
tightly
in

spark
plug

hole
of

cylinder

The

tester
is
used
to

determine
whether

cylinder

can
hold

compression
or
whether
there
is

excessive

leakage

past
rings
etc

I

Td10

l
y

Fig
ET

7

Testing

compression
pressure

Test

compression
with

engine
warm
all

spark
plugs

removed
and
throttle
and
choke
valve

opened
No

cylinder

compression
should
be
less

than
80

of

highest
cylinder
s
Excessive
variation

between

cyl

inders

accompanied
by
low

speed
missing
of
the

cylinder
usually
indicates
a

valve
not

properly
seating

or
a
broken

piston
ring
Low

pressures
even

though

uniform

may
indicate
worn

rings
This

may
be

accompanied
by
excessive

oil

consumption

Test

conclusion

If
one
or
more

cylinders
read
low

inject
about
one

tablespoon
of

enigne
oil
on

top
of
the

pistons
in
low

ET
4

EMISSION
CONTROL
AND
TUNE
UP

SERVICE
DATA
AND

SPECIFICATIONS

Valve

clearance

Hot
Intake

Exhaust
mm
in

rom

in

rom
in

kg
lb
0
35
0
014

0
35
0
014

10
to
15
0
394
to
0
591

10
22

Fan
belt
tension

Tightening
torque
Cold

Cylinder
head
bolts

kg
m

ft
lb

1st

turn

2nd
turn

Re

tightening
torque
Hot

Manifold
nuts

Carburetor
nuts
4
0

to
4
5

29
to
33

5
5

to
6
0
40

to
43

6
0

to
6
5
43

to
47

0
9

to
I
4

6
5
to
10

0
5

to
1
0
3

6
to
7
2

1
5

to
2
0
II
to
14

Spark
plugs

Oil

capacity
of

engine
including
oil
ftIter

Maximum
L

US

gal
Imp
gal

L

US

gal
Imp
gal
3
3

U
14

2
3

Ii
Minimum

Water

capacity
of

cooling
system

Without
heater

L
US
gal

Imp
gal

With
heater

L

US

gal
Imp
gal
4
2
1

U

4
9

I
4
11

12
5

to
14
5

I78
to
206
350

Compression
pressure
at

rpm
kg
em

psi

Battery
specific
gravity

Permissible
value
Fully
charged
value

at
200C
680F

Frigid
climates

Tropical
climates

Other

elima
tes
Over
1
22

Over
1
18

Over
1
20
1
28

1
23

1
26

Ignition
timing
degree

Distributor
50
B
T
D
C

Condenser

capacity
mm
in

degrees

IlF
Micro
Farad
0
45
to

0
55
0
018

to
0
022

49
to
55

0
22

5
Point

gap

Dwell

angle

Condenser
insulation
resistance
Mil

Mega
ohms

ET
25

ENGINE

SPECIFICATIONS

Dimensions
of
radiator

core

Height
x
Width
x
Thickness
mm
in
330
x

344
x
32

13
0
x

13
5
x
1
26

Type
Corrugate
fin

type

Radiator
fin

spacing
mm
in
2

5
0
098

Radiator

capacity
K
cal
hoC
335

Water

capacity
with
heater
kg
em
lb

sq
in

t
US

qt
Imp
qt
0
9IO
l
13II4

4

9
5

I
4

X
Cap
working

pressure

SERVICE
JOURNAL
OR
BULLETIN
REFERENCE

DATE
JOURNAL

or

BULLETIN
No
PAGE
No
SUBJECT

CQ

4

ENGINE

Step
system

The
construction
of
this

system
corresponds
to

the

idling
and
slow
system
of
the

primary
system

This

system
aims
at
the

power

filling
up
of
the

gap

when
fuel

supply
is

transferred
from
the

primary

system
to
the

secondary

system
The

step
port
is

located

near
the

auxiliary
valve
in
its

fully
closed

state

Anti

uesetmg

solenoid

Ignition
switch

OFF
ON

I

L
i1

7

I
Anti

dieseling
solenoid

valve

When
the

ignition
key
is
turn

to
OFF

current
will

not
flow

through
the

solenoid
and
the
slow

system
fuel

passage
is

closed
to
shut
down

the

engine
without

dieseling

If
anti

dieseling
solenoid
is
found

defective

replace
the

solenoid
as
an

assembled
llnit

Fuse

Ignition
switch

T
Baitery

717

Fig
EF
20
Schematic

drawing
of
anti

dieseling
solenoid

Removal
and

installation
of
anti
dieseling
solenoid

Removal

Solenoid
is

cemented
at

factory
Use

special
tool

STl9
I

50000
to

remove
a

solenoid

When

this
tool
is

not
effective
use
a

pair
of

pliers
to

loosen

body
out
of

position

Installation

I

Before

installing
a
solenoid
it
is
essential

to
clean
all

threaded

parts
of

carburetor
and
solenoid

Supply

screws
in
holes

and
turn
them
in

two
or
three

pitches

2

First
without

disturbing
the

above

setting
coat

all

exposed
threads
with
adhensive
the
Stud
Lock
of

LOCTlTE
or

equivalent

Then

torque
screws
to
35
to
55

kg
cm
30
to
48

in
lb

using
a

special
tool
STl9150000

After

installing
anti

dieseling
solenoid
leave

the

carburetor

move
than
12
hours
without

operation

3
Mter

replacement
is

over
start

engine
and
check
to

be

sure
that
fuel
is
not

leaking
and
that
anti

dieseling
solenoid
is
in

good
condition
Notes
a
Do
not
allow
adhesive

getting
on
valve

Failure
to
follow
this
caution
would
result
in

improper
valve

performance
or

clogged
fuel

passage

b

In

installing
valve
use
caution
not
to
hold

body
directly
Instead

use
special
tool

tight

ening
nuts

as

required

Float

system

Fuel
fed
from
the

fuel

pump
flows

through
the
filter

and
needle
valve
into
the
float
chamber
A
constant
fuel

level
is
maintained

by
the
float
and

needle
valve

As
ventilation
within
the
float

chamber
is
of
an

air
vent

method

Electric
automatic
choke

An
electric
heater

warms
a

bimetal
interconnected
to

the
choke
valve
and
controls
the

position
of
choke
valve

and
throttle
valve
in
accordance
with
the

elapse
of
time

or

the
warm

up
condition
of

engine

The
construction
and
function
of
each

part
of
this

automatic

choke
are

as
follows
See

Figure
EF
21

EF
12

FUEl

SYSTEM

l

I

@

1J
w

I

I

I

I

1

1
1
t

2

3

4

5

6

7

8

9

10

tt

12
Hi
metal

Heater

Bi
metal

cover

Fast
idle

earn

Bi

metal

Bi

metal

index
mark

Choke

shaft
lever

Choke
valve

Unloader

tang

Vacuum

diaphragm

Throttle
valve

Fast
idle

adjusting
screw
j

@

Fig
EP
21

Construction

of
electric

automatic
choke

Bi

metal
and
heater

Electric
current
flows

through
the
heater

as
the

engine

starts
and
warms
bi

metal
See

Figure
EF
22
The

deflection
of
bi
metal
is
transmitted
to
the

choke
valve

through
the
choke
valve
lever

Ignition
switch
Fuse

Alternator

T

o

o
Auto
choke
relay

Auto

choke
heater

Fig
EF
22
Schematic

drawing
of
electric

automatic
choke
heater

Fast

idle
C3m

The
fast
idle
cam
determines
the

opening
of
throttle

valve

so
as

to
obtain

proper
amount
of
mixture

corresponding
to
the

opening
of
the

choke
valve
which

depends

upon
the
warmed

up
condition
of
the

enigne
Fast
idle

adjusting
screw

This

screw

adjusts
the

opening
of

the
throttle
valve

by

fast
idle

cam

Unloader

When

accelerating
the

car

during
the
warm

up
period

that

is
before
the
choke
valve
does
not

sufficiently

open
this
unloader
makes
the

choke
valve

open
to
a

certain
extent

so
as
to
obtain
an

adequate
air

fuel

mixture

Vacuum

diaphragm

The

moment
when

engine
starts
this

diaphragm
forces

choke
valve

open
to
the

predetermined
extent
so
as

to

provide
necessary
amount
of
air

fuel
mixture

Bi

metaI
index
mark

The
bi

metal
index
mark

is
used
for

setting
the

moment
of
the

bi
metal
which
controls
the

mixing

ratio

required
for

starting
the

engine

EF
13

FUEL
SYSTEM

c

Oke
valve

1

Or

Rubber
band

Fig
EF
2B

Adjusting
choke
unloadeT

Hi
metal

setting

Measurement
of
bi
metal
heater

resistance
Install
the

bi
metal
cover
in

place
on

the
carburetor
Make

sure
that

the
resistance

across
the

terminal
and
the
carburetor

body

is
in

the

range
from
8
6

to
9
0

ohms
Measure

the

resistance
without

electric
current

through
the

heater
and

at
about

210e
700F

Note
Use
an
accurate

measuring
instrument
such
as
a

wheatstone

bridge

2
Bi
metal

cover

setting

Position
the
hi

metal
cover
until
the
index

mark
is

aligned
at
the
middle

point
of
the
scale

Note
When
somewhat
over
choked
set
bi
metal

cover

after

turning
it
clockwise

slightly
Fig
EF
29

Setting
hi
metal
cover

EF
17

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