Downloaded from www.Manualslib.com manuals search engine some air through defroster outlets.
Temperature may be adjusted
as
required. This position is recom
mended for most winter driving.
BI-LEVEL-Outside air is delivered
from the heater lower outlet and
the defroster duct and upper out
lets to provide comfort and keep
the windshield and side glass clear
under low fogging conditions.
DEF -Outside air is delivered
mainly through the defroster out
lets. Temperature and blower
speeds may be adjusted as required.
This position
is recommended for
conditions of severe fogging and
icing only.
Operating tip: When driving in
,snow , if defrost or defog is not re
quired to keep the windshield from
fogging, it
is recommended that the
"Heater" position be used. This keeps
the windshield cold so that
snow will not stick and melt and
will provide a cleaner view.
Four Season System
Air Outlets
The twin barrel type center out
lets may be rotated or vanes turned
to direct air flow ( or regulate
volume of air) in direction desired.
The outlets at each end of the
instrument panel may be rotated
33
or vanes adjusted as desired.
For additional air flow lap cool
ers
(2) are provided under the
steering column and glove box.
They have vertical air control vane
outlets and are aimed at the driver
and passenger.
To direct cool air to the floor
(driver's side only), open the outlet
(by pulling tab toward you) be
neath the lap cooler shown on the
illustration.
FLOOR OUTLET
Downloaded from www.Manualslib.com manuals search engine as each spark plug cable for
tightness.
(K) If the co r will still not sta rt, check for spark at the spark plugs in the following manner:
Pull one of the spark plug
wires off its spark plug. Insert a
short piece of bare wire (such as a bobby pin) between the rubber
cup
at the end of the spark plug
wire
and the tubular metal connector inside of it. If the spark
plug wire is wet or oily, wipe it Checking Spark
dry. Wrap a dry handkerchief or facial tissue, folded several
thicknesses, around the wire at least three inches back from the
end and grasp the wire at this point. Hold the bare wire about 1f ..
inch from the bare tip of the spark plug from which you removed the
wire. When the engine is "turned over" a spark should jump across
the
~ inch space, indicating ample current supply. If no spark
jumps, the difficulty
is probably caused by a defective ignition part
and should be corrected by your Authorized Chevrolet Dealer.
COOLING SYSTEM
When the car will run but evidences serious overheating on the
temperature gauge in the instrument panel, there are several items
which may be checked.
(L) Engine overheating will occur whim the OIL LEVEL falls dangerously low. Check the oil level as a matter of course.
69
(M) Low COOLANT LEVEL will, of co~rse, cause engine over
heating. Determine the cause of the low coolant level and have
it corrected if necessary.
(N) Check the RADIATOR CORE. Clean it if it is plugged with
bugs, leaves or other foreign material.
(0) Condition of the FAN BELT is very impartant, not only for engine cooling but also for proper generator operation. Check the
condition of the belt. Replace it if it is worn or frayed. Loosen the generator toward the engine to remove and replace the belt. Tighten the belt, whether new or old, by loosening the generator bolts, prying with a bar on the generator until the belt is tensioned properly, then retighten
the generator bolts.
(P) Another cause of engine
overheating may be an inopera
tive COOLING SYSTEM THERMOSTAT. If the thermostat should fail in the closed position, it will not
permit coolant to circulate through
the system. In such on emergency
the thermostat may be removed but should be replaced with a
properly functioning thermostat
as soon as possible.
Fan 8e/f Tension
ThermoS/of Insfallafion
