Downloaded from www.Manualslib.com manuals search engine All driving instruments are grouped in the instrument
cluster which
is located immediately in front of the driver
to provide quick
reading and maximum convenience and
accessibility. The TEMP-PRESS and GEN-FAN indicators
provide important information concerning the condition
of the engine and should be observed regularly during
operation of the car. The information on these pages
will help you understand the operation of these instru
ments . The illustrations
here and on page 14 will ac
quaint you with the instrument cluster and the instrument
panel as a whole.
FUEL GAUGE
This electrically operated
gauge indicates the amount
of fuel in the fuel tank only
when the ignition switch is
in the ON position. When
the ignition is "off", the in
dicator pointer
will not nec
essarily return to the empty
IE) mark, but may stop at
I
13
INSTRUMENTS
any point on the gauge. Therefore, always be sure that
the ignition switch is "on" when reading the fuel gauge.
SPEEDOMETER
Conveniently located in the instrument cluster di
rectly ahead of the driver, the speedometer shows at a
glance the speed of the car in miles per hour. The
odometer, encircled within the speedometer dial, reg
isters accumulated vehicle
mileage.
TEMP-PRESS AND GEN-FAN INDICATORS
These indicators provide a check on the operating
condition of the engine and the generator. Both indi
cators
should light with the ignition switch ON before
starting the engine and should go out after the engine
is started. The lights should remain out while engine is
Downloaded from www.Manualslib.com manuals search engine PERIODIC MAINTENANCE AND LUBRICATION
The time or mileage intervals on the following pages
are intended as a general guide for establishing regular
maintenance and lubrication periods for your Corvair.
Sustained heavy duty or high speed operations or oper-
A WORD ABOUT VEHICLE EMISSIONS
All new 1968 Corvairs are certified by the United States Department of Health, Education and Welfare as
conforming to the requirements of the regulations for
the Control of Air Pollution from New Motor Vehicles
and New Motor Vehicle Engines.
General Motors has developed control systems which
are highly effective in reducing undesirable crankcase
and exhaust emissions. It is very important that the owner make certain that the engine is serviced regularly
in order to maintain its efficiency and to keep emissions
below maximum allowable limits.
The emission control system on
your 1968 Corvair is
relatively easy to maintain, requiring only specific serv
ices as recommended by Chevrolet. To function properly,
this system must be inspected periodically and engine
tune-up performed at specified intervals by qualified
repairmen. For ready reference, pertinent information regarding ignition timing and idle speed and fuel mix
ture specifications is shown on a sticker affixed under
the hood of your vehicle. Following the prescribed main-
37
ation under adverse conditions may necessitate more
frequent servicing. For specific recommendations for con
ditions under which you use your vehicle, consult your
authorized Chevrolet Dealer.
tenance services
will help assure cleaner air and will
provide better running, longer lasting engines for greater
all-around satisfaction, economy and performance.
POSITIVE CRANKCASE VENTILATION (P.C.V')
The Positive Crankcase Ventilation system, which is
standard equipment on your vehicle, prevents emission
of gases from the crankcase. The P .C.V. system connects
the crankcase and intake manifold of the engine and
crankcase gases are returned through this system to the
combustion
chamber where they are burned. Periodic
inspection
and required servicing of your P.C.V. system
assures a cleaner, better-performing, longer-lasting
engine. A plugged P.C.V. system results in a loss of
crankcase ventilation which can cause condensation of
blow-by gases in the crankcase, resulting in the forma
tion of acids, sludge build-up and oil dilution. This also
results in
an increase in exhaust emissions due to car
buretor enrichment. Every 12,000 miles or 12 months,
whichever occurs first, the PCV valve should be replaced.
