cooling DATSUN B110 1973 Service User Guide

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

Air
intake

system
in

trouble

Overheating

Overcooling

Others

NOISY

ENGINE

Car

knocking

Car
knock
when

coasting
ENGINE

Diny
ur

clogged
fuel
strainer

Fuel

pump
will
not
work

properly

Clogged
carburetor

jets

Clogged
air
cleaner

Air

inhaling
from
manifold

gasket
or
carbu

retor

gasket

Insufficient
coolant

Loosened
fan
belt

Worn
or
defective
fan
belt

Defective
thermostat

Defective
water

pump

Clogged
or

leaky
radiator

Defective
radiator
filler

cap

Air

mixing
into

cooling
system

Improper
grade

engine
oil

Incorrect

ignition
timing

Defective
carburetor

lean
mixture

Defective
thermostat

Low

octane
fuel

Improper
tire

pressure

Dragging
brake

Slipping
clutch

Overloading
to

engine

Carbon

knocking

Timing
knocking

Fuel

knocking

Preignition
misusing
of

spark
plug

Incorrect
throttle

opener
adjustment

Trouble
in
PCV
valve

ET
30
Replace

Repair
or

replace

Disassemble
and
clean

Replace
element

Replace
gasket

Replenish

Adjust

Replace

Replace

Replace

Flush

repair
or

replace

Replace

Retighten
each

part
of

cooling
system

Replace
with

proper
grade
oil

Adjust

Overhaul
carburetor

Replace

Replace
with

specified
octane
fuel

Adjust
to

the
specified

pressure

Adjust

Adjust

Use

right

gear
in

driving

Disassemble
cylinder
head
and
remove

carbon

Adjust
ignition
timing

Use

specified
octane
fuel

Use

specified
spark
plug

Adjust
throttle

opener

Replace
PCV
valve

ENGINE

CYLINDER
BLOCK

The

cylinder
block
in

a
mono
block

special
casting

structure

adopts
five

bearing

support
system

The
A
12

Engine
is

provided
with

baffle

plate
and
steel

net
to

reduce
oil

consumption
the
steel
net

scoops
oil

j
y

r

0

Q

0

T

Fig
EM
2

Cylinder
block

Fig
EM
3

Cylinder
block

CRANKSHAFT

The
crankshaft
is
made
of

special
forged
steel
and

provided
with

a
high

capacity
balance

weight
The

crankshaft

improves
engine
quietness
and

durability
t

high
speed
operation

The
main

bearing
are
lubricated
from
oil
holes
which

intersect
the
main
oil

gallery
in

parallel
with
the

cylinder

bores
v

Fig
EM
4

Crankshaft

PISTON
AND
CONNECTING
ROD

The

newly
designed
lightweight
piston
is

of
cast

aluminum

slipper
skirt

type

The
A
12

Engine
uses
concave
head

pistons
The

piston

pin
is
of
a

special
steel
hollow

type
and
is
connected
to

the

piston
in

a
full

floating
fit
and

to
the

connecting
rod

in

press
fit

The

connecting
rod
is

made
of

forged
steeL
Full

pressure
lubrication
is

directed
to
the

connecting
rods

through
drilled
oil

passages
from
the

adjacent
main

bearing

journal

Oil
holes

on
the

connecting
rod

journals
are
designed

so

that
oil
is

supplied
to

give
maximum
lubrication

just

before
full

bearing
load
is

applied

J

oO

o

e

Fig
EM
5
Piston
and

connecting
rod

CYLINDER
HEAD

The

cylinder
head
is

made
of

light
and

strong

aluminum

alloy
with

good
cooling
efficiency
A

special

aluminum
bronze
valve
seat
is
used
on
the
intake
valve

while

a

special
cast
valve
seat
is
installed
on
the
exhaust

valve
These

parts
are
hot

press
fitted

EM
2

r
r

J
j
r
I
1

Bi
l

it
1
J

f

J
f
f

r

c
i
I

i
f

4
Y

fj
r
i

SER

V

E
o

r
irJ

fl
i
rt
r
f
c

V

A

M
I

I
U
I
L
WI

F

or

i

7
v

I
1II

i

r
JIt

l

W
1
pI
r

r
1

r
0

j
j

j

t

r
7
f

of

JI

p
Xjlf

ii

i

t
oI
c

J
SECTION
CO

DATSUN
1200

MODEL
8110
SERIES
COOLING

SYSTEM

LNISSAN
I

NI55AN
MOTOR
CO
LTD

TOKYO
JAPAN
COOLING
SYSTEM
co
1

COOLING
SYSTEM

COOLING
SYSTEM

CONTENTS

DESCRIPTION

WATER
PUMP

Removal

THERMOSTAT

Removal

Inspection
CO
1

CO
2

CO
2

CO
2

CO
2

CO
2

DESCRIPTION

The

cooling
system
is

of
a

closed

pressure
type
with

high
cooling
capability
Cooling
water

flowing
through

resistance
free
water

passages
in
the

cylinder
head
and

cylinder
block
is

maintained
at

adequate

temperature
Installation

RADIATOR

Removal

Inspection

SPECIFICATIONS
CO
3

CO
3

CO
3

CO
3

CO
4

range
at
aU
times

by
means

of
an

ample
capacity
water

pump
of
a

corrugated
fm

type
radiator
with

high
cooling

efficiency
and
of
a

pellet
type
thermostat

I

I

I
0

Jrl
oA

Fig
COol

Cooling
system

CO
I

ENGINE

WATER
PUMP

The
water

pump
is
a

centrifugal
type
water

pump
with

an
aluminum
die
cast

pump
body
The
volute
chamber
is

built
into
the
front

cover
assembly
and

a

high
pressure

sealing
mechanism
is

adopted
to

prevent
the
water
leakage

and
noise

completely

Note
The
water

pump
must
not
be
disassembled
since

the

bearings
are

shrinkage
fitted
to
their
bores
If

any
part
of
water

pump
is
found
defective

replace

pump
assembly

o

C0026

Fig
CO
2
Water

pump
and

front
cover

Removal

Fig
CO
3
Water

pump
removal
Drain

cooling
water

completely

2
Take

the
fan
belt
off
the

pulley

3
Remove
fan
and

pulley

4
Remove
the
water

pump

THERMOSTAT

A

pellet
type
thermostat
is

used
in
the
wa

ter
outlet

passage
to

control
the
flow
of
coolant

providing
fast

engine
warm

up
and

regulating
coolant

temperature
A

wax

pellet
in
the

thermostat

expands
when

heated
and

contracts
when

cooled
The

pellet
is
connected

through
a

piston
to
a
valve

and
when
the

peUet
is
heated

pressure
is

exerted

against
a
rubber

diaphragm
and
the
valve

opens

As
the

pellet
is

cooled
the
contraction

allows
the

spring

to
close
the
valve

Removal

Drain

cooling
water

2
Remove

radiator
hose

3
Remove
water
outlet
elbow

Then
take

out
the

thermostat

11
I
Thermostat

12
Water

outlet

Fig
CO
4
Thermostat
removal

Inspection

To
test
the
thermostat
for

proper
operating
tern

perature
submerge
the
unit
in
a
container
of
water
Heat

the
water
and
observe

the
temperature

CO
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