Chevrolet 1986 Corvair Owner's Manual page 41

Also, all hoses, fittings and the inlet air filter should be
inspected, cleaned and replciced if necessary.
NOTE: If the positive crankcase ventilator valve should
become dogged, the engine idle will be adversely
affect~d.
Therefore, if the engine idle becomes too slow
or rough, the ventilator valve should be checked before
any carburetor ad;ustments are made to compensate for
the trouble.
AIR INJECTION REACTOR (A.I.R.l
The Air Injection Reactor system is designed to re-
duce .air pollution caused by exhaust emissions. It is
entirely separate from the Positive Crankcase Ventilating
system. The Air Injection Reactor system operates by
oxidizing (or burning) the hydrocarbons and carbon
monoxide as they are expelled from the combustion
chamber into the exhaust. A positive displacement air
pump, driven by the engine, compresses clean frltered
air, which is distributed and injected at the exhaust part
of each cylinder. This fresh air mixes with the hot exhaust
gases and promotes further oxidation (or burning) of
both hydrocarbons and carbon monoxide by converting
some of them to carbon dioxide and water. This does not
reduce the danger of inhaling carbon monoxide in con-
frned areas. See page 7 for carbon monoxide warning.
Supplementing the air pump a special carburetor and
distributor plus related components are required.
The Air Injection Reactor system should have the
A.I.R. pump filter serviced and the drive belt inspected
for wear and tension every 12 months or 12,000 miles,
38
whichever occurs frrst. In addition, complete effectiveness
of the system, as well as full power and performance,
depends upon idle speed, ignition timing, and idle fuel
mixture being set according to specifrcation. A quality
tune-up which includes these adjustments should be per-
formed periodically to assure normal engine efficiency,
operation and performance.
STEERING GEAR
Every 36,000 miles - Re-
move frller plug and
check lubricant level.
If
necessary, add water
resistant EP chassis lu-
bricant which meets
General Motors Specifr-
cation GM 6031 M to
bring to level of frller
plug hole.
FAN BELT
Every 6000 miles-check condition of belt. Check belt
guide to belt clearance. Belt guide ciearance should
be approximately 1/16" after belt is tensioned.
(See page 49). Retensioning a belt unnecessarily
may result in premature belt fciilure.
ENGINE OIL CHANGE INTERVAL
Change engine oil each 4 months. If more than
6000 miles are driven in a 4-month period, change oil