1973 DATSUN B110 Service Repair Manual

Page 305 of 513

DATSUN B110 1973  Service Repair Manual 
SERV

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CE

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DATSUN 
1200

MODEL 
B

110 
SERIES

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NISSAN 
MOTOR 
CO

LTD

TOKYO

JAPAN 
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SECTION 
ET

GII

EMISSION

CONTROL

AND

TUNE

UP

EMISSION 
CO

Page 306 of 513

DATSUN B110 1973  Service Repair Manual 
EMISSION 
CONTROL 
AND 
TUNE 
UP

EMISSION 
CONTROL 
SYSTEM

AN 
D

ENGINE 
TUNE 
UP

CONTENTS

BASIC 
MECHANICAL 
SYSTEM 
ET

Checking 
and

adjusting 
dash

pot

Adjusting 
intake 
and 
exhaust 
va

Page 307 of 513

DATSUN B110 1973  Service Repair Manual 
ENGINE

operating 
mechanism

Adjust 
valve

clearance 
at

following 
four

points 
while

engine 
is 
still

hot

G 
Exhaust

valve 
of 
No 
1

cylinder

CV 
Intake 
valve

of 
No 
1

cylinder

CID

Page 308 of 513

DATSUN B110 1973  Service Repair Manual 
EMISSION 
CONTROL 
AND

TUNE 
UP

Capacity

Maximum 
3
3 
L 
X

US

gal 
y

Imp 
gal

2
3 
L 
US

gal 
f

Imp 
gal
Minimum

Make 
sure 
that

engine 
oil 
is

not 
deteriorated 
with

cooling 
water

Page 309 of 513

DATSUN B110 1973  Service Repair Manual 
ENGINE

Checking

cooling 
system 
hoses

and 
connections

Check

cooling 
system 
hoses

and

fiHings 
for 
loose

connections 
and 
deterioration

Retighten 
or

replace 
as

necessary

Inspection

Page 310 of 513

DATSUN B110 1973  Service Repair Manual 
EMISSION 
CONTROL 
AND

TUNE 
UP

reading 
cylinders 
through 
spark 
plug 
hole

Repeat

compression 
check 
on 
these

cylinders

1

If

compression 
improves 
considerably

piston 
rings

are 
def

Page 311 of 513

DATSUN B110 1973  Service Repair Manual 
ENGINE

4 
Install

a

timing 
light 
on 
No

cylinder 
spark

plug

wire 
and 
install

a 
tachometer

5

Set

idling 
speed 
to

approximately 
800

rpm

6

Check

ignition 
timing 
if

it 
is 
50B

Page 312 of 513

DATSUN B110 1973  Service Repair Manual 
EMISSION 
CONTROL 
AND

TUNE 
UP

Fig 
ET 
11

Checking 
spark 
plug 
gap

Checking 
distributor

ignition 
wiring

and

ignition 
coil

Distributor

Check

centrifugal 
advance 
unit 
for 
loose 
co