FUEl
SYSTEM
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
CONTENTS
OESCRI
PTION
Flow
guide
valve
MAINTENANCE
AND
TESTING
Checking
fuel
tank
vapor
liquid
separator
and
vapor
vent
I
ins
EF
25
EF
26
EF
26
EF
26
DESCRIPTION
This
system
consists
of
four
basic
elements
indicated
below
I
Fuel
tank
with
positive
sealing
filler
cap
with
relief
valve
2
Vapor
liquid
separator
3
Vapor
vent
line
4
Flow
guide
valve
The
flow
guide
valve
prevents
blow
by
gas
from
flowing
into
the
fuel
tank
and
guides
fresh
air
into
it
preventing
gasoline
vapor
from
escaping
into
the
carbure
tor
air
cleaner
Fl
me
ester
I
f
Flow
Thev
lve
opens
when
thlp
1l
rO
Inch
Hg
O
Positive
unk
venlI1atlon
PCV
hoe
Checking
fuel
tank
vacuum
relief
valve
operation
Checking
flow
guide
valve
EF
27
EF
27
Flow
guide
valve
operates
and
blow
by
gas
and
gasoline
vapor
flow
as
follows
When
the
engine
is
not
running
the
vapor
vent
line
vapor
liquid
separator
and
fuel
tank
are
filled
with
gasoline
vapor
produced
in
the
sealed
type
fuel
tank
A
flow
guide
valve
opens
when
the
gas
pressure
is
above
IOromHg
0
4
in
Hg
The
gas
passed
through
the
flow
guide
valve
2
is
accumulated
in
the
crankcase
Once
the
engine
starts
evaporates
in
the
crankcase
manifold
and
carburetor
air
cleaner
is
sucked
into
the
manifold
for
combustion
When
the
pressure
of
the
sealed
type
fuel
tank
vapor
liquid
separator
and
vapor
vent
line
becomes
negative
by
decreasing
the
fuel
the
flow
guide
valve
I
opens
to
send
fresh
air
from
the
carburetor
air
cleaner
to
the
fuel
tank
lill
K
riquidllepilrflOr
T
VilPOl
vent
line
Positiveteilling
lillercap
Fig
EF
37
Evaporative
emission
control
system
EF
25
ENGINE
ElECTRICAL
SYSTEM
SPECIFICATIONS
Make
and
type
Primary
voltage
v
Spark
gap
mm
in
Primary
resistance
at
200C
680
F
n
Secondary
resistance
at
200C
680F
Kn
External
resistor
at
200C
680
F
n
Applied
resistor
HANSHIN
HITACHI
H5
15
2
C6R
601
12
12
more
than
7
more
than
7
0
28
0
28
1
17
to
I
43
l
l
7
to
I
43
11
2
to
16
8
11
2
to
16
8
l
3tol7
l
3tol7
RC
15
5560R
151O
SPARK
PLUG
CONTENTS
DESCRIPTION
INSPECTION
CLEANING
AND
REGAP
EE
37
EE
37
EE
38
DESCRIPTION
The
spark
plugs
are
of
the
resister
type
having
14
mm
0
551
in
threads
and
0
8
to
0
9
mm
0
031
to
0
Q35
in
gap
Note
All
spark
plugs
installed
on
an
engine
must
be
of
the
same
brand
and
number
of
heat
range
INSPECTION
1
Remove
spark
plug
wire
by
pulling
on
boot
not
on
wire
itself
2
Remove
spark
plugs
3
Check
electrodes
and
inner
and
outer
porcelains
of
plugs
noting
the
type
of
deposits
and
the
degree
of
electrode
erosion
Refer
to
Figure
EE
74
Normal
Brown
to
grayish
tan
deposits
and
slight
elec
trode
wear
indicate
correct
spark
plug
heat
range
SPECIFICATIONS
AND
SERVICE
DATA
TROUBLE
DIAGNOSES
AND
CORRECTIONS
EE
38
EE
39
Carbon
fouled
Dry
fluffy
carbon
deposits
on
the
insula
tor
and
electrode
were
mostly
caused
by
slow
speed
driving
in
city
weak
ignition
too
rich
fuel
mixture
dirty
air
cleaner
etc
H
is
advisable
to
replace
with
plugs
having
hotter
heat
range
Oil
fouled
Wet
black
deposits
show
excessive
oil
en
trance
into
combustion
chamber
through
worn
rings
and
pistons
or
excessive
clearance
between
valve
guides
and
stems
If
the
same
condition
remains
after
repair
use
a
hotter
plug
Overheating
White
or
light
gray
insulator
with
black
or
gray
brown
spots
and
bluish
burnt
electrodes
indicate
engine
overheating
Moreover
the
appearance
results
from
incorrect
ignition
timing
loose
spark
plugs
low
fuel
pump
pressure
wrong
selection
of
fuel
a
hotter
plug
etc
H
is
advisable
to
replace
with
plugs
having
colder
heat
range
EE
37
