lock DATSUN 210 1979 Owner's Guide

Engine
Fuel

Upon
completion
of

adjustment

make
sure
that

link

system
opera
tes

smoothly
It
is

necessary
to
remove
Carburetor

from

engine
in

adjusting
this
accelera

tor

pump
stroke
limiter

1

Remove
carburetor

from

engine

2

Insert
a
l
l

to
I
S
mm
0

043
to

0
059

in
feeler

gauge
a

piece
of

round

stock
of

proper
thickness
is

best

betwee
l
primary
ca

buretor

throat
and
throtile
valve
ACCELERATOR
PUMP

STROKE

LIMITER

In

rmal
service

operation
this

limiter
should

not
be
removed
or

bent

In
J

0

ID

@

l

1IJl

J
J
00

I
f

oj

G
1
3
IO
2

mm
0
051
IO
004
in

Fig
EF
44
AdjlUting
Acce
rator

Pump
Stroke
Limiter
1
Primary
carburetor
throat

2
Throttle
valve

3
Lever

4

Limiter
5
Piston

6

Pin

7
Feeler

gauge

E
F048A

3

With
throttle
valve
held

open

properly
by
feeler

gauge
check

that

lever

barely
contacts

pin
If
lever
and

pin
are
not
in

contact

bend
limiter
until

proper
contact
is

made

OZ
00
A

fID

1

S

@

4
1

Full

travel
of

lever

f

EF049A
A
1
Lever

2
Correct

contact
area

3
Limiter

4
Pin

5

Pistgn
6
Correct
cont
ct
area

7
Lever

8

Limiter

9
Pin

10
Piston

Fig
EF
45
Stroke
Limiter

DASH

POT

I

Idling
speed
of

engine
and
mix

ture
must

be
well

tuned

up
and

engine

sufficiently
warm

2
Turn
throttle
valve

by
hand
and
read

engine
speed
when
dash

pot
just

toucnes

stopper
lever

3

Adjust
position
of
dash

pot
by

tuming
nut
until

engine
speed
is

in
the

specified

range

California

models
Non

Califomia

models

Automatic

transmission
1

900

to
2

100
1
900
to

2
100

Manual
transmission

1
900

tp
2

100
2
300

to
2

500

FU
model

1

900
to
2

100

EF

t8
1
Lock
nut

2
Dash

pot

E

F730

F
ig
EF
4

Ll
dj

ting
h

P
ot

4

Tighten
lock
nuts

5

Make
sure
that

engine
speed

drops
smoothly
from
2

000

to
1
000

rpm
in

about
three

seconds

ACCELERATING
PUMP

I

Visually
inspect

accelerating

pump
cover

for

any

sign
of
fuel

leaks

2

If
fuel

leaks
are
found

check

gasket
and

replace
if

necessary

3

Turn
throttle

valve

by
hand

make
sure
fuel
is

injected

through

injector
nozzle

Note
To

check
or

fuel

injection

peep
into
nozzle
rom

upper
side

while

directing
flashlight
beam
to

ward

primary
barrel

ANTI
DIESELING

SOLENOID

VALVI

Start
the

engine
and

keep
at

idling

speed
Disconnect
the

lead
w

e
for
the

anti
dieseling

solenoid
at
the

connec

tor

If
the

engine
does

not

stop
when

the
lead

wire
is

disconnected
the

solenoid
is

stuck
Reconnect
the
lead

wire
and

start
the

engine
Then
turn

off
the

ignition
switch

If
the

engine
does
not

stop
when

the

ignition
switch
is
turned
off

this

indicates
that
the

striking
solenoid

valve
is

stuck
or

short

circuited

If
the

harness
i
in

good
condition

replace
the
solenoid
valve
as
a
unit

EF053A

Fig
EF

50

Removing
JWrneu

of

Solenoid
valve

2

Connect
rubber
hose

between

vacuum

gauge
and
intake
manifold

Note
A

quick
response
type
boost

gauge
such

as
Bourdon
s

type
is

recommended
a

mercury
type

manometer
should
not
be

used

3
Warm

up
engine
until
it

reaches

operating

temperature
Then

confirm

that

engine
idling

speed
is

specified

valve

Engine

idling
speed

Manual

transmission

700

rpm
Engine
Fuel

Automatic
transmission

in
0

position

650rpm

Note

On
automatic

transmission

models
never

race

engine
when

gearshift
lever

is
in
0

position

4
Run

engine
under
no

load
In

crease

engine
speed
to
3

000

to
3
500

rpm
then

quickly
close
throttle
valve

S
At
the
time
manifold

vacuum

pressure
increases

abruptly
to

600

rnmHg
23
6

inHg
or
above
and

then

gradually
decreases
to
the
level

set
at

idling

a

Maximum

negative
pressure

b

Operating
pressure

c

Idling
pressure

Nega
ive

pressure

EC502

Time

Fig
EF

52
Characteristic
Curve

of

T
O
C
S

6
Check
that
the
T

O
C
s

operating

pressure
is

within
the

specified
pres

sure

Specified

pressure
0
m

sea
level

end
760

mmHg
30

inHgl
atmOs

pheric
pressure

Non
Califomia

models

520
20

mmHg

20
47
0
79

inHg

California
models

560
20

mmHg

22
05

9
79

inHgl

7

I

If
it
is
lower

than
the

specified

level

turn
the

adjusting
screw
or

nut

in
the

following
direction

until
correct

adjustment
is

made

Adjusting
nut

Clockwise

2
If
it
is

higher
than
the

specified

levei
turn
the

adjusting
screw
or

nut

in
the

following
direction
until
correct

adjustment
is

made

EF
20
Adjusting
nut

Counterclockwise

Note

When

adjusting
T

O
C
S
turn

adjusting
nut
in
or
out
with
lock

spring
in

place
Always
set
lock

spring
properly
to

prevent
changes

in

set

pressure

Vo

1

Adjusting
nut

2
Lock

spring

n

EC802

EF055A

Fig
EF
53

Adjusting
Ope
llting

Pre
3ure

Note
The

operating

pressure
varies
in

proportion
to
altitude

a
When

atmospheric

pressure
is

known

operating
pressure
will
be

found

by
tracing
the

arrow
line

A
When

altitude
is

known

op

erating

pressure
will
be

found

by

tracing
the

arrow
line

B

b

When

checking
T

O

C
S

operating

pressure
note

atmospheric
pressure

and
above
sea

level
in
which

check

is

to
be
made
and
determine
set

pressure
by
the

information
fur

nished

For

example
if
above
sea
level
is

1

000
m
3
280
ft

operating
pres

sure
will
then
be
475

mmHg

18
7

inHg
on
non

California

models
or
495

mmHg
19
5

inHg
on
California
models

In
other
words
T

O
C
S

operates

at
475

mmHg
18
7

inHg
or

490

mmHg
19
3

inHg

8
Race

engine
and

check
for

adjust

ment

9
If

engine
speed
will

not

drop
to

idling
speed
when

checking
throttle

opener
operating

pressure
proceed
as

follows

I
Turn

adjusting
screw
counter

clockwise

so
that
throttle

opener
oper

ating
pressure
is
on

high
vacuum
side
Engine
Fuel

25

mmHg
0

98

inHg
away
from
the

specified
value

2

Turn

adjusting
screw
l
O
of
a
turn

clockwise

so
that
throttle

opener
oper

ating
pressure
drops
by
25

mmHg

0
98

inHg

10
If
throttle

opener
operating

pressure
cannot
be
observed

clearly

even
in

step
9

proceed
as
follows

I
Turn

adjusting
screw
counter

clockwise

so
that
tluottle

opener

oper

ating
pressure
is
on

high
vacuum
side

50

mmHg
1
97

inHg
away
from

mid

point
of
the

specified
range

2
Turn

adjusting
screw
l
of
a
turn

clockwise

Note

The
throttle

opener
operating

pressure
should
be

correctly
set

within
the

specified
range
after
the

above

adju
stments
even
if
the
en

gine
speed
cannot
be
decreased
to

idling

inHg
mmHg

30

750

29

28

24

A

600

700

23
27

560

26
22

550

650

21
25

0

0
20
24

500

600
0

0

19

23

c

o

c

22

ii
18
0

0
450

550
E

c

0

17
2

16
20

400

500

15
B

Non
California
model

350
14

California
model

13

300

5

000
6

000
1ft

0
1
000
2
000
3
001
4
000

0
0
5
1
5
2
km

Altitude

EF056A

Fig
EF
54

Clumges
in

Operating
Pressure
Versus

Changes
in

Atmospheric

Pressure

EF
21
SERVO
DIAPHRAGM

STROKE

I
Connect

engine
tachometer

2
Warm

up
engine
until
it

reaches

operating
temperature

3
Disconnect
rubber
hose
between

servo

diaphragm
and

vacuum
control

valve

Then

connect
rubber

hose
to
in

take
manifold

Servo

diaphragm

Rubber
hose

T

O
C
S

solenoid
valve

T

O
C
S
control
valve

EF250

EF057A

Fig
EF
55

Connecting
Rubber
Hose

to

Intake

Manifold

4
Servo

diaphragm
is

functioning

properly
if

engine
speed
comes
into

the

specified

range

Specified
engine
speed

1
650

to

1
850
rpm

except

Californial

1

900
to
2

100

rpm

for
California

5
If

necessary
adjust
engine
speed

until
it
is
in
the

specified
range
using

servo
diaphragm

adjusting
screw

When

engine

speed
is

lower
than

the

prescribed
range

Turn

adjusting
screw

clockwise

When

engine
speed
is

higher
than

the

prescribed
range

Turn

adjusting
screw

counterclockwise

1

Servo

diaphragm
4

Stopper

2
Bracket
5
Link

3
Lock
nut
6
Carburetor

EF732

Fig
EF
56

Adjusting
Seroo

Diaphragm

Adjwting
Screw

FUEL

SHUT
OFF

SYSTEM

Precautions

a

Before

checking
make
sure

engine

is

warmed

up
and
choke
wive
is

fully
open

b

On
air
conditioner

equipped
mod

els
turn
off

air
conditioner
switch

in

steps
I

through
12

c

Keep
clutch

pedal
held
down
with

your
foot
while

depressing
accele

g

f
J

1
Engine
Fuel

rator

pedllI
when
shift
leVer
ISm

any
position
other
than

neutral

Otherwise
car
will

surge
forward

abruptly

Note
Do

not
attach
test
leads
of
a

circuit
tester
to
terminals
other

than
those

designated

Run

engine
at

idling

speed

2
Disconnect

anti
dieseling
solenoid

valve
connector
and
make

sure
that

engine

stops
If

not

replace
anti

dieseling
solenoid
valve

assembly

EF856

Fig
EF

57

Checking
Function

of

Anti
die

eling
Solenoid
Valve

31
A

t

CID

@

V

II
l

To

distributor

T
n

l1on
coon
o

1

Ignition
switch

2
Fuse

3

Anti
dieseling
solenoid

4

Neu
tral

detecting
switch
5
Throttle
valve
swltch

6

Engine
revolution
switch

7

Transistor

ignition
unit

8
Function
test
connector

Fig
EF
58

Checking
Fuel
Shut
off

System
Operation
with
Function

Test
Connector
EF436A

EF
22
3
Conilect
anti

ieselingsolenoid

valve
connector

4
Restart

engine

5
Connect

circuit
tester

as
shown
in

Fig
EF
S8

6

Depress
clutch

pedal
and

shift

gears
into
5th

position

7

Depressing
clutch

pedal
increase

engine
speed
to

about
3

000

rpm
by

depressing
accelerator

pedal
Then

quickly
close
throttle
wIve

by
re

leasing
accelerator

pedal

8
At
this
time
check

for

presence

of

voltage
across
A

and
B

I
If

voltmeter

reading
i
ero
dur

ing
acceleration
and
is
12V

during

deceleration
fuel
shut
off

system
is

functioning

2
If

voltmeter

reading
is

zero
or

l2V
in

both

engine
operations
fuel

shut
off

system
is

malfunctioning

In

any
case
continue
with
the

following
items

9

Shift
lever
to
neutral

then
in

crease

engine
speed
and

quickly
close

throttle
valve

If

voltmeter

reading
is

zero
in
both

engine
operations
and
results
of
test

i
tern

8
are
correct
neutral

detecting

switch
is

functioning
properly
If
not

check
neutral

detecting
switch
harness

and
connections

Replace
if

necessary

10
Turn

off

ignition
switch

II

Disconnect
throttle
valve
switch

connector
and
connect

circuit
tester

to
throttle
valve
switch
connector

12

Run

engine
under

no
load
In

crease

engine

speed
slowly
and
make

sure

engine
speed
is
within
the

speci

fied

range
when
throttle
valve
switch
is

turned
on

Then

decrease

engine
speed
slowly

and
make
sure

engine
speed
is
within

the

specified
range
when
throttle
valve

switch
is
turned

off

If
not

adjust
throttle
valve

switch

13
In
air

conditioner

equipped

models

proceed
as
follows

I
Check
F
l
C
D

rpm
and
correct

if

necessary

2
With

air
conditioner
in
ON

F
l
C
D
is
actuated
increase

engine

speed
slowly
then
decrease
it
And

make

sure
throttle
valve

operates

Click
sOund
is
heard
or

continuity

turns
to
OFF
when

engine
speed

decreases
to

idling

CLEANING
AND
INSPECTION

Dirt

gum
water
or
carbon
con

tamination
in
or
on
exterior

moving

parts
of
a
carburetor
are
often

respon

sible
for

unsatisfactory
performance

For
this

reason
efficient
carhuretion

depends
upon
careful
cleaning
and

inspection
while

servicing

Blow
all

passages
and

castings

with

compressed
air
and
blow
off
all

parts
until

dry

Note
Do
not

pass
drills
or
wires

through
calibrated

jets
or

passages

as
this

may

enlarge
orifice
and

seriously
affect
carburetor
calibra

tion

2
Check
all

parts
for
wear
If
wear

is
noted

damaged
parts
must
be
re

placed
Note

especially
the

following

I
Check
float
needle
and
seat
for

wear
If
wear
is

noted
assembly
must

be

replaced

2
Check
throttle
and
choke
shaft

bores
in
throttle
chamber
and
choke

chamber
for
wear
or
out
of
roundness

3

Inspect
idle

adjusting
needle
for

hurrs
or

ridges
Such
a
condition
re

quires
replacement
Engine
Fuel

3

Inspect
gaskets
to
see
if

they

appear
hard
or

brittle
or
if

edges
are

torn
or

distorted
If

any
such

condi

tion
is
noted

they
must
be

replaced

4

Check

filter
screen

for
dirt
or
lint

Clean

and
if
screen
is

distorted
or

remains

plugged
replace

5

Check

linkage
for

operating

condition

6

Inspect
operation
of

accelerating

pump
Pour
fuel
into
float
chamber

and
make
throttle
lever

operate
Check

condition
of
fuel

injection
from
the

accelerating
nome

7
Push

connecting
rod
of
dia

phragm
chamber
and

block

passage
of

vacuum
with
finger
When

connecting

rod
becomes
free
check
for
leakage
of

air
or

damage
to
diaphragm

Jets

Carburetor
performance
depend

on

jets
and
air
bleeds
That
is

why

these

components
must
be
fabricated

with
utmost
care
To

clean
them
use

cleaning
solvent
and

blow
air

on
them

Larger
inner
nwnbers

stamped
on
the

EF

29
jets
indicate

larger
diameters
Ac

cordingIy
main
and
slow

jets
with

larger
numbers

provide
richer
mixture

the
smaller
numbers
the
leaner
mix

ture

Conversely
the
main

and
slow
air

bleeds

through
which
air

to

passes

make
the
fuel

leaner
if

they
bear

larger

numbers
the
smaller

numbers
the

richer
fuel

Assembly

To
assemble
reverse

the
disassem

bly

procedure
taking
care
to
the

following

I
Thoroughly
wash
all
the

parts

before

assembling

2

Inspect
gaskets
to

see
if

they

appear
hard
or
brittle
or
if

edges
are

torn
or
distorted

If

any
of
such
undesirable
condi

tions
is

noted

they
must
be

replaced

3
Install

jet
and
air

bleed

having
the

Same
size

number
as
that
of

original

one

4

After
reassembling
carburetor

check
each

rotating
portion
or

sliding

portion
for
smooth

operation

a

California
models
Non
california
modeli
Except
Canada
Canada
III
C

A4
A15
A14
AI5
A
4
a

M
T
AfT
AfT
M
T
A
T
M
T
FU
A
r
MfT
AfT
11
1
4

DCH306
61
DCH306
63
DCH306
69
DCH306
60E
DCH306
68
DCH306
67
DCH306
68
DCH306
60
DCH306
12
0
a

Fuel
level
adjustment

Fuel
level
from
top
of
19
0
75
19
0
75
19
0
75
19
0
75
19
0
75
19
0
75
19
0
75
19
0
75
19
0
75

carburetor
body
mm
in

H

Gap
between
vlave
stem
and

float
scat
mm
in
t5
0
59
IS
0
59
IS
0
59
IS
0
59
IS
0
59
IS
0
59
IS
0
59
IS
0
59
IS
0
59

H
1
3
to
1
7
1
3
to
1
7
1
3
to
1
7
1
3
to
1
7
1
3
to
1
7
1
3to17
1
3
to
1
7
1
3
to
1
7
1
3
to
1
7

h
0
051
to
0
051
to
0
051
to
0
051
to
0
051
to
0
051
to
0
051
ro
0
051
to
0
051
to

0
067
0
067
0
067
0
067
0
067
0
067
0
067
0
067
0
067

Bi
metal
setting
Center
of
Center
of
Center
of
Center
of
Center
of
Center
of
Center
of
Center
of
Center
of

Bi
metal
setting
index
mark
index
mark
index
mark
index
mark
index
mark
index
mark
index
mark
index
mark
index
mark

Bi
metal
resistance
3
7
ro
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9
3
7
to
8
9

at
210C
700F
n
m

Fast
idle
adjustment
Fast
idle
0
73
to
0
84
1
00
to
1
14
1
00
to
1
14
0
73
to
0
84
1
00
to
1
14
0
73
to
0
84
1
00
to
1
14
0
73
to
0
84

m
earn
2nd
step
1
00
to
1
14
CO

T1
0
0287
to
0
0394
to
0
0394
to
0
0287
to
0
0394
to
0
0287
to
0
0394
to
0
0287
to
0
0394
to
S

W
Gap
between
throttle
valve
and
0
0331
0
0449
0
0449
0
0331
0
0449
0
0331
0
0449
0
0331
0
0449
Cl

carburetor
body
mm
in

Fast
idle
speed
at
2nd
earn
step
1
900
to
2
700
2
400
to
3
200
2
400
to
3
200
1
900
to
2
700
2
400
to
3
200
1
900
to
2
700
2
400
to
3
200
1
900
to
2
700
2
400
to
3
200
Cl

rpm

Vacuum
break
adjustment
1
80
to
1
98
1
80
to
1
98
1
80
to
1
98
1
80
to
1
98
1
80
to
1
98
1
98
to
2
16
1
80
to
1
98
1
80
to
1
98
1
80
to
1
98

Gap
between
choke
valve
0
0709
to
0
0709
to
0
0709
to
0
0709
to
0
0709
to
0
0780
to
0
0709
to
0
0709
to
0
0709
to

and
carburetor
body
mm
in
0
0780
0
0780
0
0780
0
0780
0
0780
0
0850
0
0780
0
0780
0
0780

Choke
unloader
adjustment

Gap
between
choke
valve
and
2
36
0
0929
2
36
0
0929
2
36
0
0929
2
36
0
0929
2
36
0
0929
2
17
0
0854
2
36
0
0929
2
36
0
0929
2
36
0
0929

carburetor
body
mmOn

Interlock
opening
of
primary
and
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295
5
83
0
2295

secondary
throttle
valves
mm
On

Dash
pot
adjustment
1
900
to
2
100
1
900
to
2
100
1
900
to
2
100
2
300
to
2
500
1
900
to
2
100
1
900
to
2
100
1
900
to
2
100
2
300
to
2
500
1
900
to
2
100

without
loading
rpm

Throttle
opener
operating
pressure
560
20
560
20
560
20
520
20
520
20
520
20
5
0
20
520
20

0
m
sea
level
and
760
mmHg
22
05
22
05
22
05
20
47
20
47
20
47
20
47
20
47

29
9
inHg
atmospheric
pressure
0
79
0
79
0
79
0
79
0
79
0
79
0
79
0
79

mmHg
inHg

Emission
Control

System

EARLY
FUEL
EVAPORATIVE
E
FE

SYSTEM

DESCRIPTION

@
jl
D

W

o

0
0
UL
@

1

Intake
manifold

9
Screw

2

Stove

gasket
10

Thermostat

spring

3
Mar
fold
stove
11

Heat
control
valve

4
Heat
shield

plate
12
Control

valve
shaft

5

Snap
ring
13
Exhaust

manifold

6

Countczwcight
14

Cap

7

Key
15

Bushing

8

Stopper
pin
16

Coil
spring

The

early
fuel

evaporative
system
is

provided
with
a
chamber
above
a

manifold
stove
mounted
between
the

intake
and
exhaust

manifolds

During

engine
warming
up
air

fuel
mixture
in

the
carburetor
is

heated
in

the
cham

ber

by
exhaust

gas
This
reuslts
in

improved
evaporation
of
atomized
fuel

droplets
in

the
mixture

and
in

smaller

content
of

hydrocarbons

HC
in
the

exhaust

gas

especially
in
cold
weather

operation

OPERATION

The

counterweight
rotates
counter

clockwise
and

stops
at

the

stopper
pin

mounted
on

the
exhaust
manifold

while
the

engine

temperature
is
low

With
this
condition

the
heat
control

valve
is
in

the

fully
closed

position

obstructing
the
flow

of
exhaust

gas
As

engine

temperature
goes

up
and
the

ambient

temperature
becomes

high

enough
to
actuate

the
thermostat

spring
the

counterweight

begins
to
j

@

l

7

1
1

5

If

@

I

Exhaust
gas
flows

valve
dosed

valve

opened

EC247

Fig
EC

8
Early
Fuel

Eaaporatiae
E
F
E

System

rotate
clockwise
and

again
comes
into

contact

with
the

stopper
pin
With
this

condition
the

heat
control
valve
is
in
the

full

open
position
and
exhaust

gas

passes
through
the

exhaust
manifold

without

heating
the
manifold
stove

REMOVAL
AND
INSTALLATION

1

Snap
ring

2
Lock
bolt

3

Key

4

Counterweight

5
Thermosta
t

spring

6
Coil

spring

7

Heat
controlvalve

EC913
8
Valve
shaft

Fig
EC

9
KF
E

Sy
tem
Component

EC

8

Remove

snap
ring
CD
and
lock
bolt

@
and
the

following

parts
can
be

detached
from
heat

control
valve

shaft

Key

ID

Counterweight

@

Thermostat

spring

@

Coil

spring

@

Note
As

previously
descnbed

heat

control

valve

j
is

welded

to
valve

shaft

@
at

exhaust
manifold

and

cannot
be
disassembled

To
install

reverse
the
removal

procedure

INSPECTION

1
With

engine
stopped
visually

check
the

quick
heat
manifold

system

for
the

following
items

I
Check
heat
control
valve
for

malfunction
due

to
break
of

key
that

locates

counterweight
to
valve
shaft

2
Rotate
heat
control
valve
shaft

with

fingers
and
check
for

binding

between
shaft
and

bushing
in

closing

and

opening
operation
of

heat
control

valve
If

any
binding
is
felt
in

rotating

operation
move
valve
shaft
in
the

rotation

direction
several
times
If
this

operation
does
not
correct

binding

condition
it
is

due
to
seizure
between

shaft
and

bushing
and
exhaust
mani

fold
should

be

replaced
as
an

assem

bly
Emission
Control

System

Counterweight

Heat
control
valve

Stopper
pin

EC249

Fig
EC
IO

Checking
Heat
Control

Valve
Movement

2
Run

engine
and

visually
check

counterweight
to
see
if
it

operates

properly

I
When

engine
speed
is
increased

discharge

pressure
of

exhaust

gases

causes

counterweight
to

move

down

ward

clockwise

2
For

some
time

after

starting

engine
in

cold
weather

counterweight

turns
counterclockwise
until
it

comes

into

contact
with

stopper
pin
installed

to

exhaust
manifold

EC
9
Counterweight
gradually
moves

down

clockwise
as

engine
warms

up

and
ambient

temperature
goes
higher

around
exhaust
manifold

If
it
does
not
move
at
all
check

and

replace
thermostat

spring

AIR

INJECTION

SYSTEM
A

I
S

DESCRIPTION

The
Air

Injection
System
A
I
S

is

adopted
on
U
S
A

models

except
FU

models

and

injects
compressed
air

secondary
air

coming
from
the
air

pump
into

the
exhaust

port
of
the

cylinder
head
to
reduce

hydrocarbons

He
and

carbon

monoxide
CO
in

exhaust

gas
through
recombustion

There

are
two

types
of
Air

Injection

System

Fresh
outside
air
is
drawn

by
the
air

pump
through
the

air

pump
air

cleaner

Compressed
air
is

injected
into

the

exhaust

manifold

through
the

check
valve

The
A
B

valve

supplies
air
from
the

carburetor
air
cleaner
to
the

intake

manifold

so
as

to

prevent
after

fire

during
deceleration

The
amount

of

injected
air
is
con

trolled

by
C
A

C
valve

California

models
or
air

relief
valve

Non

California
models

OPERATION

Fuel

vapors
from

the
sealed
fuel

tank
are
led
into
the
carbon
canister

The
canister

is
filled
with
activated

charcoals
to
absorb
the
fuel

vapors

when
the

engine
is

at
rest
or
at

idling

t

Fuel
tank

2

Fuel
filler

cap
with

vacuum

re1ief
va1ve

3
Fuel
check
vslve

4

Vapor
t
line

5
Vacuum

signal
line

6
Canister

purge
line
Emission
Control

System

As

the
throttle
Valve

opens
and
car

speed
increases
vacuum

pressure
in

the
vacuum

signajline
forces
the

purge

control

valve
to

open
and
admits
an

orifice
to

intake
manifold
and
fuel

vapor
is

then
drawn
into
the
intake

manifold

through
the
canister

purge

line

Fuel
vapor

7
Throttle
valve
IZ
Filter

8

Engine
13

Purge
control
valve

9
Carbon

cani5t
14

DiaphraP
spring

10
Activated
carbon
IS

Diaphngm

II
Screen
16
Fixed
orifice

EC785

Fig
EC
JOS

Evaporative
Emiuion
Control

System

Fuel

vapor
flow
when
ngine
is
at
rest
or

running

REMOVAL

AND

INSTALLAtiON

CARBON
CANISTER
FILTER

Check
for
a

contantinated

element

Elemenl
can
be
removed
at
the

bottom
of
canister

installed
on

car

body

EF201

Fig
EC
I06

Replacing
Carbon

Canilttr
Filter
CHECK
VALVE

The
check
valve
is

located
behind
the

luggage
compartment
board
on
the

fuel
tank

Remove

the

luggage

compartment

board
and
disconnect

the

vapor
tube

The
check

valve
can
then
be

taken

out

EC315A

Fig
EC
I07

Removing
Check

Volve

EC
36
INSPECTION

FUEL
TANK

AND

VAPOR
VENT
LINE

1

Check
all
hoses
and
fuel
tank

filler

cap

2

Disconnect
the

vapor
vent
line

connecting
carbon
canister
to

check

valve

3
Connect
a
3
w

y
connector

a

manometer
and
a

cock
or
an

equi

valent
3

way
charge
cock
to
the
end

of
the
vent
line

EC183A

Fig
EC
IOB

Vent
Line

4

Supply
fresh
air
into
the

vapor

vent
line

through
the
cock
little

by

little
until

pressure
becomes
368

mmHZO
14
5

inHZO

S
Shut
the
cock

completely
and

leave
it

unattended

6
After
2
5
minutes
measure
the

height
of
the

liquid
in

the
manometer

7

Variation
in

height
should
remain

with
25

mmHZO
0
98

inH20

8
When
filler

cap
does
not
close

completely
the

height
should

drop
to

zero
in

a
short
time

9
If
the

height
does
not

drop
to

zero
in

a
short
time
when
ruler

cap
is

d
it
is

the
cause
of

a

stuffy

hose

Note

In
case
the
vent
line
is

stuffy

the

breathing
in
fuel
tank
is
not

thoroughly
IIIIIde
thus

causing
in

sufficient

delivery
of
feul
to

engine

or

vapor
lock
It

must
therefore
be

repaired
or

replaced

Engine
Electrical

System

STARTING

MOTOR

STARTING
CIRCUIT

FUSIBLE
LINK
FUSE

lOA

INHIBITOR
SWITCH

LJ

J
IAfT

onlv
I
IGNITION

SWITCH

7
MIT
OnIY

STARTING

I
MOTOR

L
u

l

l

lJ
INHIBITOR
RELAY

IAfT
only
BATTERY

f

1J
INHIBITOR

RELAY

I

I
A
T

onlyl

I

B

l
I

BY
BY

VA

j
M
T

only

I
J

ti

FUSIBLE

LINK

On
IGNITION

SWITCH

BATTERY
YR

L

L

YR
tl

WR

FUSE
BLOCK

c
J

GO

c
J
C
lOA

S
L

BY

p
BL

STARTING

MOTOR

INHIBITOR

SWITCH

IAIT

only

EE741

Fig
EE
5
Circuit

Liagrom
of
Starting
System

EE4