maintenance DATSUN 210 1979 Service Manual
[x] Cancel search | Manufacturer: DATSUN, Model Year: 1979, Model line: 210, Model: DATSUN 210 1979Pages: 548, PDF Size: 28.66 MB
Page 4 of 548
FO
REWO
RD
TJili
service
manual
has
been
prepared
for
the
purpose
of
assisting
service
personnel
of
authorized
NISSAN
DATSUN
dealerS
in
providing
effective
service
and
maintenance
of
the
1979
DATSU
II210
Since
proper
maintenance
and
service
are
absolutely
essential
in
satisfying
the
DATSUN
owners
this
manu31
should
be
kept
in
a
handy
place
for
ready
reference
and
should
be
carefully
studied
t
This
manual
includes
procedures
for
maintenance
adjustments
minor
service
operations
removal
and
instaUation
and
for
rli
mblyand
assembly
of
components
Some
of
these
service
opemtions
require
the
of
Special
Tools
especially
designed
for
effective
performance
of
service
operations
The
special
tools
are
presented
at
the
end
of
each
section
As
you
read
through
the
l
lIintenance
procedures
inthis
service
m3
lual
y
lu
w
ll
occasionally
come
across
paragraphs
headed
NOTE
CAUTION
or
WARNING
A
NOTE
is
supplemental
information
that
is
important
to
a
particular
procedure
CAUTION
and
WARNING
warn
of
steps
that
must
be
fonowed
to
prevent
damage
to
some
part
of
the
car
and
or
personal
injury
The
Quick
Reference
Index
on
the
first
page
enables
the
user
to
quickly
locate
the
desired
section
At
the
beginning
of
each
individual
section
is
a
table
of
contents
which
gives
the
page
mimber
on
which
each
major
subject
begins
An
information
illustrations
and
specifications
contained
in
this
manual
are
based
on
the
latest
product
information
available
at
the
time
of
publication
approval
If
your
DATSUN
model
differs
from
the
specificationS
contained
in
this
manual
consult
your
NISSAN
DA
TSUN
dealer
for
information
Rights
for
alteration
at
any
time
of
specifications
and
methods
are
reserved
liability
for
any
personal
injury
or
property
damage
occasioned
by
the
use
of
this
service
manual
in
effecting
maintenance
or
repair
of
Y
1
r
DATSUN
is
in
no
way
assumed
by
Nissan
Motor
Co
td
Accordingly
anyone
using
a
service
procedure
or
tool
which
is
not
specifically
recommended
by
NISSAN
must
first
completely
satisfy
himself
that
neither
his
safety
nor
the
car
s
safety
will
be
jeopaiiliiedby
the
service
method
selected
NISSAN
MOTOR
Co
lTD
17
1
G11ZlI6
chomo
chuD
kil
TokyO
l04
J
n
@
1978
N1SSAN
MOTOR
CO
LTD
Printed
in
Japan
Not
to
be
reproduced
in
whole
or
in
part
without
the
prior
writtenpermisUon
of
Nissan
Motor
Company
Ltd
Tokyo
Japan
Page 5 of 548
DATSUN
210
Model
8310
Series
SECTIONGI
GENERAL
INFORMATION
CONTENTS
MODEL
VARIATION
IDENTIFICATION
NUMBERS
CAR
IDENTIFICATION
PLATE
CAR
SERIAL
NUMBER
IDENTIFICATION
NUMBER
PLATE
ENGINE
SERIAL
NUMBER
COLOR
CODE
NUMBER
LABEL
M
V
S
S
CERTIFICATION
LABEL
EMISSION
CONTROL
INFORMATION
LABE
L
MANUAL
TRf
NSMISSION
NUMBER
AUTOMATIC
TRANSMISSION
NUMBER
APPROXIMATE
REFILL
CAPACITIES
GI
2
GI
3
GI
3
GI
3
GI
4
GI
4
GI
4
GI
4
GI
4
GI
4
GI
4
GI
5
RECOMMENDED
FuEL
RECOMMENDED
LUBRICANTS
RECOf
lMENDED
LUBRICANTS
RECOMMENDED
SAE
VISCOSITY
NUMBER
LUBRICATION
CHART
MAINTENANCE
SCHEDULE
LIFTING
POINTS
AND
TOWING
PANTOGRAPH
JACK
GARAGE
JA
CK
AND
SAFETY
STAND
TOWING
TIE
DOWN
SPECIAL
TOOLS
j
GI
5
GI
5
GI
5
GI
5
GI
6
Gill
j
9
GI
9
GI
eGI
9
p
G
I
O
Page 12 of 548
MAiNTENANCE
OPERATION
Periodic
maintenance
should
be
performed
at
number
of
kilometers
mila
or
month
whichewr
comes
first
Kilometers
1
000
Mile
x
1
000
M
3nthl
MAINTENANCE
INTERVAL
1
6
I
12
I
24
I
36
I
48
I
60
72
111
117
611
11511122
511
30
1137
5
45
I
6
I
12
r
16
I
24
I
30
36
UNDERHOOD
MAINTENANCE
Gl
The
above
charts
show
the
normal
maintenance
schedule
Dependir
tg
upon
weather
and
atmospheric
conditions
varying
road
surfaces
individual
driving
habits
and
vehicle
usage
additionai
or
more
frequen
maintenance
may
be
required
Abbreviations
A
Adjust
R
Replace
I
Inspe
t
correct
replace
if
necessary
L
Lubricate
NOTE
1
If
vehicle
i
operated
under
evere
conditions
hort
distance
driving
extensive
idling
or
driving
in
du
ty
condition
change
angine
oil
every
5
000
km
3
000
mile
or
3
month
whlchevar
come
first
2
More
frequent
maintenance
if
under
dusty
driving
condition
3
Replace
differential
gear
oile
ery
96
000
km
60
000
mila
or
4
years
whichaver
com
first
4
If
vehicle
i
operated
in
ereas
u
ing
road
alt
or
other
corro
ive
material
inspect
evary
5
000
km
3
000
mile
or
3
months
whichever
comes
first
Page 14 of 548
GI417
Fig
GI
15
Front
Towing
Hook
REAR
SIDE
Rear
towing
hooks
are
provided
on
bot
rear
sides
GI418
Fig
GI
16
Rear
Towing
Hooks
Special
Tools
play
very
important
role
in
the
maintenance
of
cars
These
are
essential
to
the
safe
accurate
and
speedy
servicing
The
working
times
listed
in
the
column
under
FLAT
RATE
TIME
in
FLAT
RATE
SCHEDULE
are
com
puted
based
on
the
use
of
Special
Tools
General
Information
CAUTION
a
Before
towing
make
sure
that
the
transmission
axles
steering
system
and
p
r
train
are
in
good
order
If
any
unit
is
damaged
a
dolly
must
be
used
If
the
transmission
is
inoperative
tow
the
car
with
the
rear
wheels
off
the
ground
or
with
the
propeller
shaft
removed
c
When
the
car
is
towed
with
its
front
wheels
on
the
ground
secure
the
steering
wheel
in
a
straight
ahead
position
with
the
ignition
key
turnedin
OFF
position
d
When
towing
an
automatic
trans
mission
model
on
its
rear
wheels
do
not
exceed
30
km
h
20
MPH
and
a
distance
of30
km
20
miles
e
Release
the
parking
brake
and
set
the
gearshift
lever
in
Neutral
position
before
starting
to
tow
the
car
TIE
DOWN
FRONT
51
DE
Use
front
towing
hooks
for
tie
down
at
the
front
side
SPECIAL
TOOLS
The
identification
code
of
ffi
linte
nance
tools
is
made
up
of
2
alphabeti
calletters
and
8
digital
figures
The
heading
two
letters
roughly
classify
tools
c
equipment
as
STOOOOOOOO
KVOOOOOOOO
Special
Tool
Special
Tool
GI
l0
REAR
SIDE
Use
rear
towing
hooks
for
tie
down
at
the
rear
side
EMOOOOOOOO
GGOOOOOOOO
lMOOOOOOOO
HTOOOOOOOO
Engine
Overhauling
Machine
General
Gauge
Garage
Tool
Hand
Tool
Refer
to
Service
Bulletin
DATSUN
210
fOJ
Special
Tool
List
and
further
information
of
Special
Tools
Page 17 of 548
Engine
Tune
up
BASIC
MECHANICAL
SYSTEM
ADJUSTING
INTAKE
AND
EXHAUST
VAL
fE
CLEARANCE
Note
After
tightening
cYlinder
head
bolts
adjust
intake
and
exhaust
valve
clearances
Valve
clearance
ai
ljustment
cannot
be
made
while
the
engine
is
in
opera
tion
To
adjust
proceed
as
follows
I
Start
engine
and
warm
it
up
uritil
water
temperature
indicator
points
to
the
middle
of
gauge
Then
stop
engine
2
Rotate
crankshaft
to
bring
No
I
cylinder
in
top
dead
center
on
its
compression
stroke
3
Remove
valve
rocker
cover
Adjust
valve
clearance
at
following
four
points
while
engine
is
still
hot
CD
Exhaust
valve
of
No
I
cylinder
@
Intake
valve
of
No
I
cylinder
@
Intake
valve
of
No
2
cylinder
@
Exhaust
valve
of
No
3
cylinder
Note
Numbers
in
circle
agree
with
those
in
accompanying
sketch
tiri
Fig
ET
1
Adjusting
Value
Clearanu
4
Again
rotate
crankshaft
one
turn
so
that
No
4
piston
is
in
top
dead
center
on
its
ompression
stroke
Ad
just
following
valve
s
CID
Exhaust
valve
of
No
2
cylinder
@
Intake
valve
of
No
3
cylinder
j
Intake
valve
of
No
4
cylinder
@
Exhaust
valve
of
No
4
cylinder
Adjustment
should
be
made
while
engine
is
hot
After
all
valves
have
been
adjusted
correctly
tighten
lock
nut
firmly
to
secure
ihe
adjustment
Valve
clearance
Hot
Intake
0
35
mm
0
014
inl
Exhaust
0
35
mm
0
014
in
tJl
Tightening
torque
Valve
rocker
adjusting
nut
1
6
to
2
2
kltm
12
to
16
ft
lb
Alternator
Crankshaft
pulley
Unit
mm
in
Idler
pulley
Fig
ET
2
CHANGING
ENGINE
OIL
1
Check
if
oil
is
diluted
with
water
or
gasoline
Drain
and
refill
oil
if
necessary
Note
a
A
milky
oil
iiulicates
the
presence
of
cooling
water
Isolate
the
cause
and
take
corrective
measure
b
An
oil
with
extremely
low
viscosity
indicates
dilution
with
gasoline
2
Check
oil
level
If
below
the
specified
level
raise
it
up
to
the
H
level
3
Change
engine
oil
in
accordance
with
the
maintenance
schedule
Engine
oil
capacity
A14
With
oil
filter
3
7
liters
3
U
US
qt
3
Yo
Imp
qtl
ET3
CHECKING
AND
ADJUSTING
DRIVE
BELTS
I
Check
for
cracks
or
damage
Re
place
if
necessary
2
Normal
drive
belt
deflection
is
showndI
figure
below
when
moderate
thumb
pressure
is
applied
midway
between
pulleys
Thumb
pressure
10
kg
221bl
Idler
pulley
Compressor
p1
111ey
AC710
Checking
Drive
Belts
for
Deflection
Without
oil
filter
3
2
liters
3
USqt
2
U
ImP
ltl
A15
With
oil
filter
3
3
liters
3
US
qt
2
U
Imp
qd
Without
oil
filter
2
8
liters
3
us
qt
2
Imp
qd
REPLACING
OIL
FILTER
The
oil
filter
is
a
cartridge
type
and
can
be
removed
using
Oil
Filter
Wrench
STl9320000
I
Check
for
oil
leaks
past
gasketed
Oange
If
leakage
is
found
retighten
just
enough
to
stop
leakage
If
reo
tightening
is
no
longer
effective
re
Page 20 of 548
SO
B
T
D
C
l650
rpm
Non
California
models
except
Canada
100
B
T
D
C
650
rpm
Canada
models
Note
On
FU
models
ignition
timing
is
set
under
a
condition
where
distributor
vacuum
hose
is
discon
nected
If
necessary
adjust
ignition
timing
as
follows
I
Loosen
set
screw
until
dis
tributor
c
uJ
be
moved
by
hand
2
Adjust
ignition
timing
to
speci
fications
3
Lock
distributor
set
screw
and
make
sure
that
timing
is
correct
YJ
Fig
T
9
Adjusting
Ignition
Timing
7
On
FU
models
proceed
as
fol
lows
I
Remove
blind
plug
from
dis
tributor
vacuum
hose
and
connect
hose
to
distributor
diaphragm
2
If
engine
speed
varies
in
this
state
set
idling
speed
at
specified
value
with
throttle
adjusting
screw
CHECKING
IGNITION
WIRING
Use
an
ohmmeter
to
check
resist
ance
on
high
tension
cables
1
Disconnect
cables
from
spark
plugs
and
remove
distributor
together
with
high
tension
cables
Note
Do
not
remove
cables
from
cap
Engine
Tune
up
2
Connect
the
ohmmeter
between
cable
terminal
on
the
spark
plug
side
and
the
corresponding
electrode
inside
cap
3
If
the
resistance
is
more
than
30
000
ohms
remove
cable
from
cap
and
check
the
cable
resistance
only
If
resistance
is
still
more
than
30
000
ohms
replace
c3ble
assembly
Fig
ET
IO
Checking
High
Tension
Cable
u
s
A
models
Type
FU
models
Standard
Hot
type
Cold
type
U
S
A
models
Canada
models
r
1g
mm
in
FU
models
Canada
models
Tightening
torque
kg
m
ft
lb
ET
6
Stan
rd
Hot
type
Cold
type
S
aridard
Hot
type
Cold
type
CHECKING
AND
REPLACING
SPARK
PLUGS
I
Remove
and
clean
plugs
in
a
sand
blast
cleaner
Inspect
each
spark
plug
Make
sure
that
they
are
of
the
specifi
ed
heat
range
2
Inspect
insulator
for
cracks
or
chips
Check
both
center
and
ground
electrodes
3
If
they
are
excessively
worn
re
place
with
new
spark
plugs
4
Replace
spark
plugs
in
accordance
with
the
maintenance
schedule
BP
ES
ll
L46PW
l
BP4E
ll
L47PW
ll
BP7ES
ll
BP6ES
ll
L44PW
II
L4
PW
11
BP5
EQ
13
L46PM
13
BP4EQ
13
L47PM
13
BP6EQ
13
L45PM
13
BP7EQ
13
L44PM
13
BPR5ES
BPR4ES
BPR6ES
1
0
to
1
1
LQ39
to
0
043
l
l
to
1
3
0
043
to
0
051
0
8
to
0
9
0
031
to
0
035
1
5
to
i
6
P
to
14
Page 24 of 548
make
sure
throttle
valve
operates
click
sound
is
heard
or
continuity
turns
to
OFF
when
engine
speed
decrease
to
idling
If
not
adjust
throttle
valve
switch
Fig
ET
19
AdjlUting
Throttle
V
ve
Switch
FU
models
If
throttle
valve
switch
g1f1not
be
adjusted
to
specification
replace
Engine
Tune
up
Note
If
it
is
difrlCUlt
to
judge
open
tion
of
throttle
valve
switch
by
hearing
Click
sound
caused
by
microswitch
check
as
follows
1
DiscollI
ecl
throttle
va1ve
switch
ronnector
and
connect
circuit
tester
to
throttle
va1ve
switch
2
Run
engine
under
no
load
Increase
engine
speed
slowly
and
make
sure
it
is
within
the
specified
range
when
throttle
valve
switch
is
turned
on
Then
decrease
engine
speed
slowly
and
make
sure
it
is
within
the
specified
range
when
throttle
va1ve
switch
is
turned
off
If
not
adjust
throttle
valve
switch
3
Make
sure
continuity
of
throttle
vaIve
switch
turns
to
OFF
in
the
operation
desaihed
in
step
6
Engine
operation
Engine
speed
when
throttle
valve
switch
operates
Throttle
valve
switch
continuity
When
engine
speed
increases
1
150
i200
rpm
1
000
1
200
rpm
When
engine
speed
decreases
REPLACING
FUEL
FILTER
I
Check
for
a
contaminated
filter
and
water
deposit
0
9
ET011
Fig
ET
20
Fuel
Filter
All
engines
use
a
replaceable
car
tridge
type
fuel
filter
as
an
assembly
2
Replace
fuel
filter
in
accordance
with
maintenance
schedule
OFF
ON
ON
OFF
CHECKING
FUEL
LINES
Hoses
piping
connections
etc
Check
fuel
lines
for
loose
connec
tions
cracks
and
deterioration
Re
tighten
loose
connections
and
replace
any
damaged
or
deformed
parts
REPLACING
AIR
CLEANER
FILTER
Viscous
paper
type
air
cleaner
filter
does
not
require
any
cleaning
opera
tion
until
it
is
replaced
periodically
Sushing
or
blasting
operation
will
cause
clogging
and
result
in
enrich
ment
of
carburetor
mixture
and
should
never
be
conducted
Replace
air
cleaner
filter
in
accord
ance
with
maintenance
schedule
ET
10
CHECKING
AUTOMATIC
TEMPERATURE
CONTROl
AiR
CLEANER
I
Check
that
vacuum
hoses
Intake
manifold
to
3
way
connector
3
way
connector
to
temperature
sensor
3
way
connector
to
idle
compensator
temperature
sensor
to
vacuum
motor
are
securely
connected
in
C9rrect
posi
tion
2
Check
each
hose
for
cracks
or
distortion
3
Check
A
T
C
system
for
function
by
proceeding
as
follows
ConfIrm
that
engine
is
cold
before
starting
test
With
engine
stopp
d
distonnect
fresh
air
duct
Place
a
mirror
at
the
end
of
air
c1eaner
inlet
pipe
as
shown
and
check
to
see
if
air
control
valve
is
in
correct
pOsition
2J
v
7
EF210
Fig
ET
21
Inspecting
Valve
Position
Air
control
va
ve
is
in
correct
posi
tion
if
its
cold
air
inlet
is
open
and
hot
air
inlet
is
closed
4
Start
engine
and
keep
idling
Immediately
after
engine
starting
check
air
control
valve
for
correCt
position
as
described
above
In
this
case
correct
position
of
air
control
valve
is
the
reverse
of
step
3
under
hood
air
inlet
is
closed
and
hot
air
inlet
is
open
5
Check
that
air
control
valve
gradually
opens
to
cold
air
inlet
side
as
engine
warms
up
When
environmental
temperature
around
temperature
sensor
is
low
spend
more
time
for
engine
warning
up
operation
of
facili
tate
smooth
operation
of
air
control
valve
If
the
above
test
reveals
any
prob
lem
in
the
operation
of
air
control
valve
carry
out
the
further
inspection
described
in
Section
EF
Page 26 of 548
R
EPIACING
AIR
PUMP
AIR
CLEANER
FILTER
Except
FU
models
and
Canada
models
When
replacing
air
cleaner
filter
remove
ir
cleane
frO
ho
od
legge
and
detach
lower
body
and
filter
as
an
assembly
ET530
Fig
ET
23
Replacing
Air
Cleaner
Filter
REPI
ACINGAIR
INDUCTION
VALVE
FILTER
FU
models
and
Canada
models
Remove
screw
securirtg
valve
to
air
cleaner
Air
induction
valve
fIlter
can
be
taken
out
easily
Replace
fIlter
periodically
in
accordance
with
main
tenance
schedule
2
C
l
11
l
r
r
EC9
Fig
ET
24
R
pklcing
Air
Induction
Value
Filter
REPLACING
P
C
V
VALVEANb
FILTER
I
Check
P
C
V
valve
as
follows
With
engine
running
at
idle
remove
the
ventilator
hose
from
P
C
V
valve
if
the
valve
is
working
a
hissing
noise
will
be
heard
as
air
passes
through
the
valve
and
a
strong
vacuum
should
be
felt
inunediately
when
a
finger
is
placed
over
valve
inlet
Engine
Tune
up
2
Replace
P
C
V
Valve
and
filter
in
accord
with
maintenance
schedul
ET531
Fig
ET
25
Replacing
P
C
V
Value
and
Filter
CHECKING
VENTILATION
HOSES
I
Check
hoses
and
hose
connec
tions
for
leaks
2
Disconnect
all
hoses
and
clean
with
compressed
air
If
any
hose
cannot
be
free
of
obstructions
replace
Confirm
that
flame
arrester
is
locat
ed
correctly
in
hose
between
rocker
cover
and
air
cleaner
ET277
Fig
ET
26
Cleaning
Ventilation
Hose
ET
12
CHECKING
VAPOR
LINES
I
Check
all
hoses
and
fuel
tank
flller
cap
2
Disconnect
vapor
vent
line
con
necting
carbon
canister
to
fuel
tank
3
Connect
3
way
connector
mana
meter
and
cock
or
equivalent
3
w
y
charge
cock
to
end
of
vent
line
ET532
Fig
ET
27
Vent
Line
4
Supply
fresh
air
into
vapor
vent
line
through
cock
little
by
little
until
pressure
become
400
mmH20
is
75
inH20
5
Shut
cock
completely
and
leave
it
unatiended
6
After
2
5
minutes
measure
height
of
liquid
in
manometer
7
Varilllion
in
height
should
remain
with
25
mmHp
0
98
inH20
8
When
filler
cap
does
not
close
completely
height
should
drop
to
zero
ih
a
short
time
9
If
height
does
not
drop
to
zero
in
a
short
time
when
filler
cap
is
re
moved
it
is
cause
of
a
stuffy
hose
Note
In
case
vent
tine
B
stuffy
breathing
in
fuel
tank
is
not
thoroughly
made
thlis
caming
in
sufficient
delivery
of
fuel
to
engine
or
vapor
lock
It
must
tberefore
be
repaired
or
replaced
Page 27 of 548
3
way
connector
ck
Air
Manometer
@
Carbon
canister
Engine
Tune
up
400
mmH20
15
75
in
H20
Check
valve
r
F
uel
filler
cap
with
vacuum
relief
valve
1
Fig
ET
28
Checking
Evaporatiue
Emiuion
Control
System
EC091A
CHECKING
FUEL
TANK
VACUUM
RELIEF
VALVE
Remove
fuel
filler
cap
and
see
it
functions
properly
I
Wipe
clean
valve
housing
and
have
it
in
your
mouth
2
Inhale
air
A
slight
resistance
ac
companied
by
valve
indicates
that
valve
is
in
good
mechanical
condition
Note
also
that
by
further
inhaling
air
the
resistance
should
be
disappeared
with
valve
c
ks
3
If
valve
is
clogged
or
if
no
resist
ance
is
felt
replace
cap
as
an
assem
bled
unit
ET
j3
D
o
0
o
0
o
0
ET500
Fig
ET
29
Fuel
Filler
Cap
with
Vacuum
Relief
Value
REPLACING
CARBON
CANISTER
FILTER
Check
for
a
contaminated
fJlter
Filter
can
be
removed
at
the
bot
tom
of
canister
installed
on
car
body
2
Replace
fJlter
in
accordance
with
maintenance
chedule
EF201
Fig
ET
30
Repfucing
Carbon
Canister
Filter
Page 89 of 548
TEMPERATURE
SENSOR
Removal
I
Using
pliers
flatten
clip
con
necting
vacuum
hose
to
sensor
vacuum
tube
1
Pipe
2
Catch
3
Fixed
with
adhesive
4
Hose
5
Tab
6
Clip
7
Gasket
EC019
Fig
EF
7
Removing
Seruor
2
Disconnect
hose
from
sensor
3
Take
off
clip
from
sensor
vacuum
tube
and
dismount
sensor
body
from
air
cleaner
Note
The
gasket
between
sensor
and
air
cleaner
is
bonded
to
the
air
cleaner
side
and
should
not
be
removed
Installation
Mount
sensor
on
the
specified
position
2
Insert
clip
into
vacuum
tube
of
sensor
After
installing
each
vacuum
hose
secure
hose
with
the
clip
Note
Be
sure
to
install
vacUl
11n
hose
correctly
Correct
position
is
R
H
side
to
Ntisan
mark
at
the
top
face
of
sensor
for
intake
manifold
L
H
side
for
Deuum
motor
VACUUM
MOTOR
1
Remove
screws
securing
vacuum
motor
to
air
cleaner
2
Disconnect
valve
shaft
attached
to
vacuum
motor
diaphragm
from
air
control
valve
and
remove
vacuum
motor
assembly
from
air
cleaner
3
To
install
reverse
the
removal
procedures
Engine
Fuel
Fig
EF
8
Removing
Vacuum
Motor
INSPECTION
AIR
CLEANER
FILTER
Viscous
paper
type
air
cleaner
filter
does
o
ot
rt
quire
any
cleaning
opera
tion
until
it
is
replaced
periodically
Brushing
or
blasting
operation
will
cause
clogging
and
result
in
enrich
ment
of
carburetor
mixture
and
should
never
be
conducted
For
reo
placement
interval
of
air
cleaner
filter
refer
to
Maintenance
Schedule
AUTOMATIC
TEMPERATURE
CONTROL
SYSTEM
Engine
failures
resulting
from
a
malfunctioning
A
T
C
system
are
manifest
during
cold
weather
opera
tion
Such
failures
include
Engine
stall
or
hesitation
Increase
in
fuel
consumption
Lack
of
power
If
these
phenomena
should
occur
check
A
T
e
system
as
described
in
the
following
before
carrying
out
inspection
of
carburetor
I
Check
that
vacuum
hoses
are
se
l
urely
connected
in
correct
position
2
Check
each
hose
for
cracks
or
distortion
3
Check
A
T
C
system
for
proper
function
as
follo
ys
Confirm
that
engine
is
cold
before
starting
test
With
engine
topped
disconnect
fresh
air
duct
if
so
equipped
Place
a
mirror
at
the
end
of
air
cleaner
inlet
pipe
as
shown
and
check
to
see
if
air
control
valve
is
in
correct
position
EF
4
Fig
EF
9
Inspecting
Valve
Po
man
Air
control
valve
is
in
correct
posi
tion
if
its
cold
air
inlet
is
open
and
hot
air
inlet
is
closed
4
Start
engine
and
keep
idling
Immediately
after
engine
starting
check
air
control
valve
for
correct
position
as
described
above
In
this
case
correct
position
of
air
control
valve
is
the
reverse
of
step
3
under
hood
air
inlet
is
closed
and
hot
air
inlet
is
open
S
Check
that
air
control
valve
grad
ually
opens
to
cold
air
inlet
side
as
engine
warms
up
When
environmental
temperature
around
temperature
sen
sor
is
low
spend
more
time
for
engine
warming
up
operation
to
facilitate
smooth
operation
of
air
control
valve
If
the
above
test
reveals
any
prob
lem
in
the
opera
ion
of
air
control
valve
carry
out
the
following
test
VACUUM
MOTOR
I
With
engine
stopped
confirm
that
cold
air
inlet
is
open
and
hot
air
inlet
is
c1
Sed
If
not
check
air
control
valve
link
age
for
proper
operation
2
DiscoJln
ct
ac
um
motor
inlet
vacuum
hose
and
connect
another
hose
to
the
inlet
to
apply
vacuum
to
vacuum
motor
Vacuum
can
be
appli
d
by
breathing
in
tile
hos
e
end
as
shown
Then
confirm
that
the
air
control
valve
moves
3
With
hot
air
inlet
in
open
posi
tion
as
described
in
step
2
above
pinch
vacuum
hose
with
fingers
and
cut
off
air
from
vacuum
hose
In
this
condition
check
that
air
control
valve
maintains
the
condition
described
in
step
2
for
more
than
30
seconds
and
that
hot
air
inlet
is
open
If
diaphragm
spring
actuates
the
air
control
valve
by