overheating CHEVROLET CORVAIR 1965 2.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine TOWING
• Place selector lever in neutral.
• If transmission or axle are malfunctioning, tow with
rear wheels raised.
• When towing any vehicle on its front wheels, the
steering wheel should be secured to maintain a
straight forward position .
• Never tow faster than 50 mph.
ROCKING CAR
When stuck in mud, sand or snow, you may rock
the car by depressing the accelerator slightly and shift­
ing the selector lever between Rand D. Avoid excessive
engine speed while performing this operation.
PARKING CAR
It is important that when your Corvair is parked the
parking brake be fully engaged. Do not count on the
transmission to hold the car. Always engage the parking
brake when parked.
POWERGLIDE DRIVING CAUTIONS
• Always engage parking brake when parked.
• Do not accelerate engine in L, 0, or R with
the brakes engaged. This can cause damage
by overheating transmission.
• Do not hold car on an upgrade by accelerat­
ing engine. Use brakes.
• Use low position for hard pulls at low
speed, climbing or descending steep grades
and for push starting.
• Always stop car before shifting to reverse.
DRIVING WITH POSITRACTION REAR AXLE
The Positraction rear axle gives you constant driv­
ing force on both r~ar wheels; especially helpful in the
winter and during other slippery driving conditions.
In normal use, light throttle application will supply
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maximum traction. When starting with one rear wheel
on an excessively slippery surface, slight application of
the parking brake may be necessary to gain maximum
traction.

Downloaded from www.Manualslib.com manuals search engine YOUR CORVAIR CORSA INSTRUMENT PANEL
We feel that you, as owner of the Cor-
vair Corsa, will be more interested in a
constant check on
engine operation than
would the average driver. Therefore the
following instruments have been provided
for your use and information.
Tachometer-with a range of 6000 rpm.
Upshifts can
be made up to 5300 rpm.
Downshift as desired provided engine speed
in
new gear does not exceed 5300 rpm. The
red
line at 5500 rpm indicates maximum rec­
ommencled
engine speed.
Speedometer -maximum reading of 140
mph. Odometers are provided for both trip and cumu­
lative mileage. Set the trip odometer by means of the
knob located beneath the instrument panel and to the
left of the steering column.
Temp-Press and Gen-Fan Indicators-operate in the
same
manner as on other Corvairs. In addition, a warn­
ing buzzer connected to the temperature light will oper­
ate if engine temperature reaches the danger point.
Under extreme operating conditions, momentary engine
overheating may occur. Should the Temp-Press light
23
lEFT TURN HIGH BEAM INDICATOR INDICATOR
GAUGE PRESSURE
RIGHT TURN INDICATOR
come on, release the throttle and, if the light stays on,
follow the instructions presented on Page 9 .
Manifold Pressure Gauge-tells when the supercharger
is functioning. Positive readings indicate that the super­
charger is building up pressure for more power. Neg­
ative readings indicate normally aspirated engine
operation.
Cylinder Head Temperature Gauge-indicates cylin­
der head temperature to warn of approaching overheat
condition.

Downloaded from www.Manualslib.com manuals search engine you use an oil which, according to the label on the can
is (1) intended for service MS and (2) passes car makers'
tests or meets General Motors Standard GM 4745-M .
Oils conforming to these types contain detergent addi­
tives. Your serviceman will be pleased to assist you in
selecting the proper oil for your car.
Check the oil level (with the engine hot) on the dip­
stick frequently. Keep oil level between the FULL and
ADD marks, by adding oil when level is at or below
ADD mark. Do not overfill. Poor performance and pos­
sible engine damage may result if the crankcase is
overfilled. Drain and refill the crankcase very 60 days
or 6000 miles, whichever occurs first.
For vehicles
in heavy duty operation involving con­
tinuous stop-
start or prolonged idling, engine oil should
be changed after 2500-3000 miles of operation.
NOTE: When checking or adding oil, be care­
ful to avoid spilling or dropping oil onto the
engine shrouding.
LOWEST RECOMMENDED SAE VISCOSITY OIL ANTICIPATED TEMP. SINGLE VISCOSITY MULTI-VISCOSITY
32° F. SAE-30 SAE-l0W-30
10° F. SAE-l0W SAE-l0W-30
Below -10° F. SAE-5W SAE-5W-20
33
COOLING SYSTEM CARE
The engine fan belt should be checked for tightness
at regular intervals. When a new belt is needed use only
the approved premium belt available from your Chev­
rolet dealer. If any other belt is installed, replace with
recommended belt when possible .
Watch the TEMP-PRESS and GEN-FAN indicators on
the instrument panel for signs of overheating.
Air inlet louvers, located in the panel below the rear
window on Corvair models, or in the Corvair Greenbrier
upper rear quarter panels, supply air for engine combus­
tion
and cooling and for the Direct Air Heater. Make
sure the louvers are never sealed or blocked.
BATTERY CARE
Check fluid level frequently. Keep filled with distilled
water to level of split ring in vent tube.

Downloaded from www.Manualslib.com manuals search engine cup at the end of the spark plug
wire
and the tubular metal con­
nector inside of it. If the spark
plug wire is wet or oily, wipe it
dry. Wrap a dry handkerchief or
facial tissue, folded several thick­
nesses, around the wire at least
three inches back from the end
and grasp wire at this point. Hold the bare wire about 1,4 inch
from the.
bare tip of the spark
plug from which you removed the
wir,e. When the engine is "turned Checking 'or Spark
over" a spark should jump across the 1,4 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 when the OIL LEVEL falls danger­
ouslylow. Check the oil level as a malter of course.
CAUTION: Never drive the car when the TEMP-PRESS indicator in
the instrument panel is lighted. (See Page 9.)
50
(M) Check the air intake louvers . Clean them if they are plugged
with leaves or other foreign material.
(N) Condition of the FAN BELT
is very important, not only for en­
gine cooling but
also for proper
generator operation. Check the
condit ion of the belt. Replace
it
if it is worn or frayed. Loosen the
idler
bracket bolts and move the
bracket toward the engine to
remove and replace the belt.
Tighten the belt, whether new or
old, by loosening the idler bracket nuts, prying with a bar on the Checking Fan Bel' Tension
bracket until the belt is tensioned properly, then retighten the
bracket bolts. Proper belt tension is such that, when belt is de­
flected downward with moderate thumb pressure at a point midway
between the
generator and fan pulleys, the belt will deflect about
%" to X6". Do not overtighten the belt.
(0) Another cause of engine overheating may be an inoperative
COOLING SYSTEM THERMOSTAT. If the thermostat should fail
i n the closed position, it will not permit
air to circulate through the
engine. See your Authorized Chevrolet Dealer.