ENGINE
Caution
lock
the
front
and
rear
wheels
by
fully
pulling
the
parking
brake
lever
before
con
ducting
this
test
Fig
ET
32
Checking
for
operation
of
vacuum
advance
system
If
any
objection
is
found
by
the
check
mentioned
above
either
of
the
following
defects
may
be
the
cause
Poor
connection
or
broken
harness
and
fuse
2
Air
leakage
resulting
from
poor
connection
of
vacu
um
tube
3
Incorrect
operation
of
Top
switch
4
Defective
operation
of
vacuum
cutting
valve
sole
naid
5
Incorrect
operation
of
thermo
switch
Testing
of
Top
switch
1
Make
sure
of
insulation
between
lead
wire
terminal
of
transmission
switch
and
switch
body
2
Disconnect
lead
wires
at
the
switch
and
connect
ohmmeter
to
tenninals
3
Ohmmeter
should
indicate
infmity
co
when
shift
lever
is
in
Top
gear
position
And
it
should
indicate
zero
at
other
gear
position
including
Neutral
posi
tion
4
If
it
does
not
work
properly
in
step
3
replace
the
switch
with
a
new
one
Testing
of
thermo
switch
I
MaJ
e
sure
of
insulation
between
lead
wire
terminal
of
thermo
switch
and
thetmo
switch
body
2
Disconnect
lead
wire
at
switch
and
connect
ohm
meter
to
terminals
Ohmmeter
should
indicate
zero
when
temperature
indicate
the
passenger
compartment
is
above
l30C
550F
4
If
it
does
not
work
properly
in
step
3
replace
thermo
switch
with
a
new
one
AUTOMATIC
TEMPERATURE
CONTROL
AIR
CLEANER
A
T
C
AIR
CLEANER
Replacing
carburetor
air
cleaner
filter
The
paper
element
viscous
type
has
been
specially
treated
to
eliminate
bother
of
cleaning
until
replacement
It
should
be
replaced
with
a
new
one
at
regular
intervals
or
more
often
according
to
the
operating
conditions
Checking
hot
air
control
valve
Inspection
Among
the
possible
troubles
of
this
device
the
most
liable
is
the
permanent
opening
of
valve
This
trouble
is
not
noticed
in
warm
weather
but
in
cold
weather
appears
as
poor
performance
of
engine
such
as
tardy
acceleration
hesitation
or
engine
stall
In
such
case
first
inspect
this
device
before
checking
the
carburetor
Another
trouble
which
might
be
expected
is
that
the
underhood
air
is
kept
closed
by
the
valve
regardless
of
the
temperature
of
suction
air
around
the
sensor
while
the
engine
is
running
This
ttOuble
appears
in
the
form
of
extremely
excessive
fuel
consumption
or
decrease
in
power
The
inspection
of
this
device
should
be
proceeded
as
follows
Fig
ET
33
Correct
position
of
hoses
ET
20
