fuel pressure 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 16 of 548
f
EMISSION
CONTROL
DEVICES
En
ine
model
I
AI4
I
A1S
B310
Non
CaliCor
Non
California
models
Califor
nia
Car
model
California
models
E
cept
for
C
nada
Canada
nia
modeb
models
Except
for
Canada
M
T
M
T
A
T
Ti
ansmiuion
M
T
A
T
Except
A
T
FU
M
T
A
T
Station
Wagon
FU
models
models
models
AIR
CLEAN
I
A
T
C
air
cleaner
I
X
I
X
X
I
X
I
X
I
X
I
X
I
X
X
ER
Idle
compensator
Dual
type
X
I
X
X
I
X
I
X
I
X
I
X
I
X
X
Fresh
air
duct
X
I
X
X
I
X
I
X
I
I
I
X
X
ENGINE
I
Early
fuel
evaporative
system
X
I
X
X
xl
X
I
X
I
X
I
X
X
BASE
Exhaust
gas
type
CARBV
I
P
T
C
auto
choke
X
I
X
X
X
I
X
I
X
I
X
I
X
X
m
RETOR
I
l
Thr
ttle
opener
X
X
X
X
I
I
X
I
X
I
X
X
Q
I
Fuel
shut
off
system
I
X
I
I
I
3
m
ll
i
Dash
po
t
X
X
X
X
I
X
I
X
I
X
I
X
X
N
l
IGNITION
I
H
I
C
ignitor
X
X
X
X
I
X
I
X
I
X
I
X
X
c
SYSTEM
Spark
timing
contra
system
T
e
S
X
X
X
I
I
I
I
l
X
X
I
X
ll
Thermal
vacuum
valve
X
X
X
I
X
I
I
I
I
X
X
c
Vacuum
delay
valve
X
I
X
I
I
I
X
I
0
X
A
I
S
I
Air
pump
Air
pump
air
cleaner
check
valve
I
X
X
I
X
I
X
I
I
I
I
x
X
A
B
valve
Combined
air
control
C
A
C
valve
I
X
X
I
I
I
I
I
I
X
Relief
valve
I
I
X
I
X
I
I
I
I
X
Air
induction
valve
Filter
A
B
valve
I
I
I
I
X
I
X
I
X
E
G
R
I
Exhaust
gas
recirculation
E
G
R
valve
I
X
I
X
I
X
I
X
I
X
I
X
I
X
I
X
X
SYSTEM
Thetmalvacuum
valve
I
X
I
X
I
X
I
X
I
X
I
X
I
X
I
X
X
Back
pressure
transducer
B
P
T
valve
I
X
I
X
I
X
I
X
I
X
I
I
I
X
X
CATALYZER
I
CatalytJc
converter
I
X
I
X
I
I
I
X
I
I
I
X
Newly
equipped
unit
on
1979
models
M
T
Manual
transmission
Remarks
X
Available
A
T
Automatic
transmission
Not
available
A
T
C
Aute
matic
tempeJ
ature
control
P
T
C
POlitive
temperature
coefficient
A
I
S
Air
injection
system
or
Air
induction
system
A
B
valve
Anti
backfire
valve
Page 18 of 548
pl
ice
mter
as
an
assembly
2
When
installing
oil
mter
tighten
by
hand
Note
Do
not
overtighten
oil
filter
lest
leakage
shoUld
occur
CHANGING
ENGINE
COOLANT
PERMANENT
ANTI
FREEZE
COOLANT
Note
The
permanent
anti
freeze
coolant
is
an
ethylene
glya
l
base
product
containing
chemical
in
hibitors
to
protect
the
cooling
system
from
rusting
and
corrosion
The
anti
freeze
does
not
cOntain
any
glycerine
or
ethyl
alcohol
It
will
not
evaporate
or
boil
a
ay
and
can
be
ilsed
with
either
high
or
low
temperature
thermostats
It
flows
freely
transfers
heat
efficiently
and
will
not
clog
the
passages
in
the
cooling
system
The
anti
freeze
must
not
be
mixed
with
other
product
This
coolant
can
be
used
throughout
the
seasons
of
the
year
Whenever
coolant
is
changed
the
cooling
system
must
be
flushed
and
refilled
with
a
new
coolant
Check
the
coolant
level
See
instructions
attached
to
the
anti
freeze
container
for
mixing
ratio
of
anti
freeze
to
water
CHECKING
COOLING
SYSTEM
HOSES
AND
CONNECTIONS
Check
hoses
and
fittings
for
loose
connections
or
deterioration
Re
tighten
or
replace
if
necessary
INSPECTION
OF
RADIATOR
CAP
Apply
reference
pressure
0
9
kgj
cm2
13
psi
to
radiator
cap
by
means
of
a
cap
tester
to
see
if
it
is
satisfactory
Replace
cap
assembly
if
necessary
I
j
ngine
Tune
up
ET012
Fig
ET
3
Testing
Radiator
Cap
COOLING
SYSTEM
PRESSURE
TEST
Witli
radiator
cap
removed
apply
reference
pressure
1
6
kgfcm2
23
psi
to
the
cooling
system
by
means
0
no
Fig
ET
4
Water
capacity
M
Tmodelsl
Without
heater
5
2
liten
5
1f
US
qt
4
Imp
qt
With
heeter
5
9
Iiten
6
4
US
qt
5
Y
Imp
qt
Water
capacity
AfT
modelsl
Without
heater
5
0
liters
5
y
US
qt
4
Imp
qt
With
heater
5
7
liten
6
US
qt
5
Imp
ill
CHECKING
ENGINE
COMPRESSION
Note
a
To
check
cylinder
compression
it
is
essential
to
remove
all
spark
plugs
The
purpose
of
this
test
is
to
ET
4
determine
whether
there
is
exces
sive
leakage
past
piston
rings
head
gasket
etc
To
test
engine
should
be
heated
to
the
operating
t
M
ture
and
throttle
valve
opened
b
Cylinder
compre
on
in
Cylinders
should
not
be
less
than
llO
of
the
highest
reading
Different
compres
sion
in
two
ore
more
cYlinder
usual
ly
indicates
an
improperly
seated
valve
or
broken
piston
ring
c
Low
compression
in
cylinders
am
result
from
worn
piston
rings
This
trouble
may
usuaDy
be
accom
panied
by
ex
ssive
fuel
consump
tion
I
Warm
up
engine
sufficiently
2
Disconnect
aU
spark
plugs
3
Disconnect
anti
dieseling
solenoid
valve
connector
4
Properly
attach
a
compression
tester
to
spark
plug
hole
in
cylinder
being
tested
FiI
ET
S
ET529
Testing
Compre
sion
Pr
s8ure
5
Depress
accelenit6r
pedal
to
open
throttle
and
choke
valves
Note
Do
not
pump
pedal
6
Start
engine
as
quickly
as
pos
sible
Compression
pressllre
kg
cm2
ii
at
rpm
Standard
13
5
192
350
Minimum
12
5
1781
350
If
cylinder
compression
in
o
e
or
more
cylinders
is
low
pour
a
small
quantity
of
engine
oil
into
cylinders
through
the
spark
plug
holes
and
retest
compression
I
If
addingoil
helps
the
compres
Page 19 of 548
sion
pressure
chances
are
that
piston
rings
are
worn
or
damaged
2
If
pressure
stays
low
the
likeli
hood
is
that
valve
is
sticking
or
seating
Engine
Tune
up
improperly
3
If
cylinder
compression
in
any
two
adjacent
cylinders
is
low
and
if
adding
oil
does
not
help
the
compres
sion
there
is
leakage
past
the
gasketed
surface
Oil
and
water
in
combustion
cham
bers
can
result
from
this
problem
IGNITION
AND
FUEL
SYSTEM
CHECKING
BATTERY
I
Remove
six
vent
plugs
and
check
electrolyte
level
in
each
battery
cell
If
necessary
pour
distilled
water
Overflow
Correct
Shortage
t
t
j
t
t
t
EE358
Fig
ET
6
Checking
Electrolyte
Level
2
Measure
the
specific
gravity
of
battery
electrolyte
E
T372
Fig
ET
7
Checking
Specific
Gravity
of
Battery
Electrolyte
Over
1
22
Full
charge
value
at
200C
680F
1
28
1
26
Permissible
value
Frigid
climates
Other
climates
Note
a
Clean
top
of
battery
and
terminals
with
a
solution
of
baking
soda
and
water
Rinse
off
and
dry
with
com
pressed
air
Top
of
battery
must
be
c1
n
to
prevent
current
leakage
between
terminals
and
from
posi
tive
terminal
to
hold
down
clamp
b
In
addition
to
current
leakage
prolonged
accumulation
of
acid
and
dirt
on
top
of
hattery
may
cause
blistering
of
the
material
covering
ronnector
straps
and
rorrosion
of
straps
c
Afte
r
tightening
terminals
coat
them
with
petrolatum
vaseline
to
protect
them
from
corrosion
CAUTION
If
the
battery
cables
are
disconnected
they
should
be
tightly
clamped
to
the
battery
terminals
to
secure
a
good
contact
Over
I
20
CHECKING
AND
ADJUSTING
IGNITION
TIMING
Check
spark
plugs
for
condition
2
Thoroughly
remove
dirt
and
dust
from
crank
pulley
at
timing
mark
location
and
front
cover
at
timing
indicator
3
Warm
up
engine
sufficiently
4
Connect
engine
tachometer
and
timing
light
in
their
proper
positions
5
Adjust
idling
speed
to
the
specifi
ed
value
Idling
speed
Manual
transmission
700
pm
Automatic
transmission
6S0
rpm
in
0
position
ET
S
WARNING
When
selector
lever
is
shifted
to
0
position
apply
parking
brake
and
block
both
front
and
rear
wheels
with
chocks
Note
a
On
FU
models
set
idling
speed
with
distributor
vacuum
hose
dis
connected
b
Disconnect
distributor
vacuum
hose
at
distributor
diaphragm
side
and
plug
hose
with
blind
plug
See
Fig
ET
8
ET501
Fig
ET
B
Disconnecting
Distributor
Vacuum
Hose
6
Check
ignition
timing
with
a
timing
light
to
ensure
that
it
is
adjust
ed
to
specifications
indicated
below
Ignition
timing
Manual
transmission
SO
B
T
0
C
f700
rpm
California
FU
models
100
B
T
0
C
f700
pm
Non
California
Canada
models
Automatic
transmission
SO
B
T
0
C
f6S0
rpm
California
models
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 29 of 548
IBnition
and
fuel
system
Ignition
timing
Manual
transmission
models
Automatic
transmission
models
in
D
position
1
Spark
plug
Gap
U
s
A
models
Canada
models
FU
models
High
tension
cable
resistance
CO
percentage
at
idling
speed
No
air
Manual
transmission
models
Automatic
transmission
models
f
in
D
position
Evaporatlv
emission
control
system
Supplied
pressure
l
Pressure
variation
TIGHTENING
TORQUE
Valve
rocker
adjusting
nut
Spark
plug
Engine
Tune
up
degree
rpm
degree
rpm
mm
in
mm
in
mm
in
ohm
rpm
rpm
mmH29
inH20
mmH20
inHP
kg
m
ft
lb
kg
m
ft
lb
ET1S
SO
B
T
D
C
j700
rpm
California
FU
models
T
D
CJ700
i
m
r
Non
California
Canada
models
SO
B
T
D
C
j6S0
rpm
California
models
80
B
T
D
C
j6S0
rpm
Non
California
models
ex
cept
Canada
100
B
T
D
C
j6S0
rpm
Canada
models
1
0
to
l
l
0
039
to
0
043
0
8
to
0
9
0
031
to
0
035
LI
to
1
3
0
043
to
O
OSI
an
3O
OOO
2
r
1
700
2
r
1
6S0
400
IS
7S
less
than
2S
0
98
I
f
r
1
6
to
2
2
12
to
16
1
5
to
2
0
11
to
14
jf
0
Page 34 of 548
Condition
Othen
NOISY
ENGINE
Cor
knockillll
M8chanicol
knocking
Crankshaft
bearing
knocking
Connecting
rod
bearing
knocking
Piston
and
cylinder
noise
Piston
pin
noise
Water
pump
noise
Air
pump
noise
Others
Engine
Tune
up
Probable
cause
Improper
octane
fuel
Improper
tire
pressure
Dragging
brake
Dutch
slipping
Overloaded
engine
Carbon
knocking
Timing
knocking
Fuel
knocking
Preignition
miswing
of
spark
plug
This
strong
dull
noise
increases
when
engine
is
occelerated
To
locate
the
place
cause
a
misfire
on
each
cylinder
If
the
noise
stops
by
the
misfire
this
cylinder
generates
the
noise
This
is
a
little
higher
pitched
noise
than
the
crankshaft
knocking
and
also
increases
when
engine
is
accelerated
Cause
a
misfire
on
each
cylinder
and
if
the
noise
diminishes
almost
completely
this
crankshaft
bearing
generates
the
noise
When
you
hear
an
overlapping
metalic
noise
which
increases
its
magnitude
with
the
revolution
of
engine
and
which
decreases
as
engil
e
is
warmed
up
this
noise
is
caused
by
piston
and
cylinder
To
locate
the
place
cause
a
misfire
on
each
cylinder
This
noise
is
heared
at
each
highest
and
lowest
dead
end
of
piston
To
locate
the
place
cause
a
misfire
on
each
cylinder
This
noise
may
be
caused
by
worn
or
damaged
b
arings
or
by
the
uneven
surface
of
sliding
parts
Damaged
air
pump
Except
Canada
and
FU
models
An
improper
adjustment
of
valve
clearance
Noise
of
timing
chain
An
excessive
end
play
on
crankshaft
Noisy
E
F
E
valve
shaft
H20
Corrective
action
Replace
with
specified
octane
fuel
Inflate
to
sptcifled
pressure
Adjust
Adjwt
Use
right
gear
in
driving
Disassemble
cylinder
head
and
remove
carbon
Adjust
ignition
timing
Use
specified
octane
fuel
Use
specified
spark
plug
This
is
caused
by
worn
or
damaged
bearings
or
unevenly
worn
crankshaft
Renew
bearings
and
adjust
or
change
crankshaft
Check
lubrication
system
Same
as
the
case
of
crankshaft
bearings
This
may
cause
an
abnormal
wearing
of
cylinder
and
lower
compression
which
in
turn
will
cause
a
lower
out
put
power
and
excess
ive
consumption
of
oil
Overhaul
engine
This
may
cause
a
wear
on
piston
pin
or
piston
pin
hole
Renew
piston
and
piston
pin
assembly
Replace
water
pump
with
a
new
one
Repair
or
replace
Adjust
Adjust
the
tension
of
chain
Disassemble
engine
and
new
main
beaung
Repair
Page 35 of 548
Condition
ABNORMAL
COMBUSTION
backfire
afterfire
run
on
etc
Improper
ignition
timing
Fuel
system
out
of
order
Feulty
cylinder
heed
etc
Others
EXCESSIVE
OIL
CONSUMPTION
Oilleek8111
Engine
Tune
up
Probable
cause
Surging
A
T
C
air
cleaner
vacuum
motor
Note
This
noise
will
be
hmnl
when
clutch
iI
disengaged
We
r
on
clutch
pilot
bushing
Not
e
This
noise
will
be
heared
when
utch
iI
disengaged
Improper
ignition
timing
Improper
heal
range
of
spark
plugs
Damaged
carburetor
or
manifold
gasket
backfire
aftedire
Clogged
carburetor
jet
Improper
function
of
the
float
Uneven
idling
Run
on
Improperly
adjusted
T
O
C
S
set
pressure
Except
FU
models
Malfunction
of
anti
dieseling
solenoid
valve
Malfunction
of
fuel
shut
off
system
FU
models
Malfunction
or
auto
hoke
Improper
y
adjusted
valve
clearance
Excess
carbon
in
combustion
chamber
Da
laged
alve
spring
backfire
after
he
Malfunction
of
A
T
C
air
cleaner
Inoperative
anti4lackfire
valve
Loose
oil
tain
plUI
ose
or
damaged
oil
pan
gasket
Loose
or
damaled
chain
cover
gasket
Wom
oil
seal
in
front
and
rear
of
crankshaft
Loo
or
damaged
locker
cover
gasket
Improper
lilhtening
of
oU
filter
Loose
or
damaled
oil
pressure
switch
ET
21
Corrective
action
Repair
or
replace
Renew
bush
and
adjust
drive
shaft
Adjust
ignition
liming
Use
specified
spark
plugs
Replace
them
with
new
parts
Disassemble
carburetor
and
check
it
Adjust
the
level
and
check
needle
valve
Adjust
Adjust
Check
or
replace
Check
fuel
shut
off
system
Adjust
or
re
place
necessary
Adjust
Adjust
Remove
head
and
get
rid
of
carbon
Replace
it
wit
a
new
one
Check
for
loose
vacuum
hoses
Replace
if
necessary
Replace
Tighten
it
Renew
lasket
or
tighten
iI
Renew
gasket
or
lighten
it
Renew
oil
seal
Renew
gasket
r
lighten
it
but
not
too
much
Renew
gasket
and
tighten
it
with
the
proper
torque
Renew
oil
pressure
switch
or
tighten
it
Page 36 of 548
Condition
Ex
iv
oil
consumption
Odlen
POOR
FUEL
ECONOMY
See
the
explanation
oI
thtI
power
cIec
01hen
PROBLEM
IN
OTHER
FUNCTIONS
t
1
oil
pre
E
eronthe
lIiding
par1J
Scuffing
oIlliding
par1J
Engine
Tune
up
Probable
cause
Cylinder
and
piston
wear
Improper
lOcation
of
pi5ton
ring
gap
or
reversely
assembled
piston
ring
Damage
pi5ton
r
gs
Wom
pilton
ring
groove
and
ring
Fatigue
of
valve
oil
seal
lip
Worn
valv
stem
Inadequate
qUality
of
engine
oil
Engine
overheat
Exceeding
idling
revolution
Inoperative
acceleration
covel
Fuelleakage
Malfunction
of
T
O
C
S
Except
FU
mod
els
Malfunction
of
A
T
C
air
cleaner
Inadequate
oil
quality
Overheat
Worn
oil
pump
regulator
valve
Functional
deterioration
of
oil
pump
Blocked
oil
filter
Increased
clearanCe
in
various
sliding
parts
Blocked
oil
strainer
Inoperative
oil
gauge
pressure
switch
Oil
pressure
decreases
Improper
quality
or
contamination
of
oil
Damaged
air
cleaner
Overheat
or
overcool
Improper
fuel
nUxture
Decrease
of
oil
presSure
Insufficient
clearances
ET
22
Corrective
action
Overhaul
cylinder
and
renew
piston
Remount
piston
rings
Renew
rings
Repair
or
renew
piston
and
cylinder
Renew
piston
and
piston
ring
Replace
seal
lip
with
a
new
one
Renew
valve
or
guide
Us
the
designated
ou
Previously
mentioned
Adjust
it
to
the
designated
rpm
Adjust
it
Repair
or
lighten
the
connection
of
fuel
pipes
Adjust
Check
and
replace
Use
the
designated
oil
Previously
mentioned
Disassemble
oil
pump
and
repair
or
renew
it
Ref4ir
or
replace
it
with
I
new
one
Renew
i
t
Disassemble
and
replace
the
worn
parts
with
n
w
of
es
Clean
it
Replace
it
with
a
new
one
Previously
mentioned
Exchange
the
oil
with
proper
one
and
change
element
Otange
element
Previously
mentioned
Oteck
the
fuel
system
Previously
mentione
d
Readjust
to
the
designated
clearances
Page 90 of 548
its
spring
force
to
close
within
30
seconds
replace
vacuum
motor
as
an
assembly
since
this
may
be
resulted
from
air
leak
at
vacuum
motor
dia
phragm
TEMPERATURE
SENSOR
If
tests
indicate
that
A
T
C
system
is
malfunctioning
and
motor
is
func
tioning
properly
check
temperature
sensor
for
proper
operation
Confirm
that
engine
is
cold
before
starting
tests
Start
engine
and
keep
idling
Immediately
after
starting
engine
disconnect
vacuum
motor
inlet
vacu
um
hose
and
make
suce
that
intake
vacuum
is
present
at
end
of
vacuum
DESCRIPTION
The
idle
compensator
is
basically
a
thermostatic
valve
which
functions
to
introduce
the
air
directly
from
the
air
cleaner
to
the
intake
manifold
to
compensate
for
abnormal
enrichmerit
of
mixture
in
high
idle
temperature
The
bi
metal
attached
to
the
idle
compensator
detects
the
temperature
of
intake
air
and
opens
or
closes
the
valve
Two
idle
compensators
having
different
temperature
characteristics
are
installed
one
opens
at
an
intake
air
temperature
of
60
to
700C
140
to
IS80F
and
the
other
at
70
to
800C
158
to
1760
F
EF222
1
Orifice
2
Bi
metal
3
Rubber
valve
Fig
EF
ll
Idle
Compensator
Engine
Fuel
hose
If
vacuum
is
weak
or
is
not
present
at
all
check
vacuum
hoses
for
leakage
Replace
temperature
sensor
if
vacuum
hoses
are
in
good
order
EF978
Fig
EF
l0
Checking
for
Pressure
of
Intake
Vacuum
IDLE
COMPENSATOR
INSPECTION
I
Check
that
valve
is
in
closed
position
when
bi
metal
temperature
is
lower
than
operating
temperature
To
check
breathe
air
into
tube
or
suck
air
If
excessive
air
leakage
is
found
at
the
valve
replace
idle
compensator
as
an
assembly
Note
that
two
idle
com
pensators
are
mounted
to
air
cleaner
and
that
it
is
ne
essary
to
plug
the
valve
of
one
of
these
idle
compensa
tors
so
as
to
prevent
air
leak
while
checking
the
other
one
I
t
I
I
Orifice
2
Rubber
valve
EF225
Fig
EF
12
Checking
Idle
Compensator
Note
When
checking
idle
compensa
tor
on
car
disconnect
hose
leading
EF
5
2
Reconnect
vacuum
hose
to
vacu
um
motor
and
warm
up
engine
3
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
air
control
valve
does
not
open
check
air
control
valve
linkage
for
binding
Replace
temperature
sensor
if
air
control
valve
linkage
is
functioning
properly
to
idle
compensator
and
connect
other
hose
then
carry
out
check
as
described
above
2
Warm
up
engine
completely
3
Open
engine
hood
and
remove
air
cleaner
cover
4
Direct
warm
air
to
idle
compensa
tor
with
a
heat
gun
And
measure
operating
temperature
of
idle
compensator
EF043A
Fig
EF
13
Checking
Idle
Compemator
for
Op
ration
Note
Locate
stick
temperature
gauge
as
close
to
sensor
as
possible
so
that
warm
air
from
dryer
is
directed
to
these
parts
evenly
Page 91 of 548
Engine
Fuel
S
Idle
compensator
is
ill
good
order
if
a
hissing
sound
is
heard
when
its
temperature
reaches
operating
tern
perature
If
not
replace
idle
compensator
ldlerompensator
l
b
l
r
I
No
1
60
to
700C
140
to
15
Of
No
2
70
to
800C
158
to
1760F
FUEL
FILTER
DESCRIPTION
t
t
I
J
i
l
The
fuel
filter
is
a
cartridge
type
It
useS
a
paper
element
1
Body
2
Paper
element
3
Cover
EFOOS
Fig
EF
14
Sectional
View
of
Cartridge
Type
FuelFilte
FUEL
PUMP
t
j
f
EC132
Fig
EF
15
Schematic
View
of
Fuel
Pump
EF
6
OPERATING
TEST
Note
When
disconnecting
fuel
hoses
me
a
container
to
receive
fuel
remaining
in
fuel
hoses
STATIC
PRESSURE
TEST
The
static
pressure
test
should
be
conducted
as
follows
I
Disconnect
fuel
hose
between
car
buretor
and
fuel
pump
2
Connect
a
rubber
hose
to
each
open
end
of
aT
connector
and
con
nect
this
connector
hose
assembly
be
tween
carburetor
and
fuel
pump
Note
Locate
this
T
eonnector
as
close
to
carburetor
as
possible
3
Connect
a
suitable
pressure
gauge
to
the
opening
of
T
connector
and
fasten
the
hose
between
carburetor
and
T
connector
secUrely
with
a
clip
4
Start
and
run
the
engine
at
various
speeds