1971 CHEVROLET CAMARO maintenance

Downloaded from www.Manualslib.com manuals search engine under the proper conditions, they react with other
gases to form photochemical smog, which
is so prev­
alent in Los Angeles.
In addition, carbon monoxide emissions have been
reduced by about 65 percent compared with 1960
model cars without controls. Although carbon mon­
oxide does not enter into the complex photochemical
smog reaction, it
is toxic at high concentrations and
thus, has been controlled to prevent high atmospheric
concentrations.
Recent Developments
Another important advancement in air pollution
control has been the removal of lead from gasoline.
(Certain lead compounds have been used for many
years
as additives to increase octane ratings.) All
1971 General Motors cars including your Camaro
are designed
to operate on unleaded or low-lead
(zero to
0.5 grams per gallon) gasolines. However,
any gasoline with
91 Research Octane Number or
42
higher will satisfy your engine's octane requirements.
Use of unleaded or low-lead gasoline will keep your
engine running efficiently and play an important part
in reducing exhaust emissions of hydrocarbons and
particulates.
Your Role In Controlling Air Pollution
1. Use Unleaded or Low-Lead Fuels-To obtain
maximum results
In the reduction of automotive
emissions, use an unleaded gasoline.
If such gaso­
line
is not available, you may use a leaded regu­
lar grade gasoline.
2. Have The Air Pollution Control Systems on Your
Car Serviced Regularly -
The following pages of
this section describe the emission control systems
on Chevrolet vehicles and provide information
on their proper maintenance. By following these
recommended maintenance services you will help
assure cleaner air and provide a better running,
longer lasting engine and greater all around satis­
faction, economy and performance.

Downloaded from www.Manualslib.com manuals search engine POSITIVE CRANKCASE
VENTILATION (PCV)
~F"'FILnREDAIR --+ B = BLOW BY GASES :lI." HB ~COMBUSTlBlEMIXTURE
pey
VALVE
OPERATION: All General Motors gasoline engine
powered vehicles are equipped with Positive
Crank­
case Ventilation-a system which permits no crank­
case emissions to be discharged into the atmosphere.
To function properly, the system depends on the
43
PCV Valve which returns blow-by gases to the com­
bustion chamber where they are burned.
MAINTENANCE: This valve must be clean in
order to maintain efficient engine operation.
An
inspection of the ventilation filter should be
made at the first oil change
(4 months or 6,000
miles, whichever occurs first). At each subse­
quent oil change, the ventilation filter
should
be inspected and replaced if necessary. Re­
place filter at least every 24,000 miles. Under
normal driving conditions, the PCV Valve should
be replaced every 24 months or 24,000 miles,
whichever occurs first, and
all hoses and fit·
tings
should be inspected and cleaned or re­
placed, as necessary. Replace the PCV Valve
and inspect related parts every 12 months or
12,000 miles when the vehicle is used in a ser­
vice requiring more frequent engine oil change
as covered on page 53.
NOTE: Emission control systems in this section are Illustrated on V-8 engines; systems on 4 and 6 cylinder engines are similar.

Downloaded from www.Manualslib.com manuals search engine CONTROLLED COMBUSTION
SYSTEM
(CCS)
NEW CARBURETOR LEAN MIXTURES, ENGINE IDLE INCREASED
..... HEAlEDUNDEIiHODDAIR q UND£RHOODAJR
@HOTEXHAUST
I THERMOSTATICALLY CONTROLLED INTAKE AIR
HEAT EXCHANGED FROM EXHAUST MANIFOLD TO UNDERHOOD AIR FLOW
44
OPERATION: The Controlled Combustion System
is entirely separate from the Positive Crankcase Ven­
tilation
Sys tem and is designed to reduce pollutants
in the exhau st by altering the combustion process,
CCS is a combination of design features including a
special air cleaner which incorporates thermostatic
control of heated air to the carburetor, a special
calibrated carburetor and distributor and a modified
combustion chamber design,
MAINTENANCE: Complete effectiveness of the
system,
as well as full power and performance,
depend
upon engine idle speed, ignition tim­
ing,
and dwell being set according to the spec­
ifications
shown on a label under the hood.
These adjustments should be checked at the
first oil change
(4 months or 6,000 miles,
whichever comes first). Subsequent checks
should be made at
12 month or 12,000 mile
intervals, whichever comes first. These adjust­
ments are also included
as part of the quality
tune-up recommended at
the same intervals.

Downloaded from www.Manualslib.com manuals search engine AIR INJECTION REACTOR (AIR)
KEY TO HR. SYSTEM CJ F1LTEREDAIR
.... ~!~:~~A:~~~~I:E ~ TREATED EXHAUST ~(TOUMOS'HERE THMOUGHHHAlIST'II'E)
OPERATION: The Air Injection Reactor system,
(used on vehicles not equipped with
CCS) is de­
signed to reduce air pollution by oxidizing (burning)
the hydrocarbons and carbon monoxide after they
45
leave the combustion chamber. A positive displace­
ment air pump, driven by the engine, compresses
filtered air which
is injected at the exhaust port of
each cylinder. This air mixes with the exhaust gases
and promotes further oxidation of both hydro­
carbons and carbon monoxide. The
AIR system also
includes a specially calibrated carburetor and dis­
tributor.
MAINTENANCE: Complete effectiveness of this
system
is dependent on the engine idle speed,
ignition timing and
dwell being set according
to specifications as indicated on a label under
the hood. These adjustments should be
checked at the first oil change (4 months or
6,000 miles, whichever comes first). Subse­
quent checks should be made at 12 months or
12,000 mile intervals, whichever comes first.
These adjustments are
also included as part of
the
quality tune-up recommended at the same
intervals. In addition, all hoses and fittings
should be inspected to make sure they are
properly connected, and the drive belt in­
spected for wear
and tension on the 12 month
or
12,000 mile schedule.

Downloaded from www.Manualslib.com manuals search engine EVAPORATION CONTROL SYSTEM
LIQUID/VAPOR SEPARATOR
OPERATION: All General Motors passenger cars
and light trucks are equipped with an Evaporation
Control
System. This system is designed to minimize
the escape of fuel vapors to the atmosphere. Included
in the system are a special fuel tank, liquid-vapor
separator, carbon canister, canister purge hoses, and
carburetor modifications. Fuel vapors which would
otherwise escape to the atmosphere are directed into
the carbon canister. The carbon adsorbs the vapors
and stores them. The vapor
is removed from the
46
canister during periods of engine operation as mani­
fold vacuum draws the vapors into the engine and
burns them.
NOTE: Th. G.n.r.' Motora E".por.tlon Control Sy.t.m I. de­.'gn.d to control ."aporatlon 10 •••• trom your c.r und.r normal condition. u.'ng 9 lb. R.ld Vapor Pr ••• ur. tu.' .p.cltl.d by F.d.r.' .nd C.lltorn/a t •• t r.qulr.m.nt •. How.".r, It 'Iou .hould u.. tu.' ot .bnorm.lly high "o/.tlllty tor .x/.tlnll t.mperatur.
condition., you may d.t.ct • ga.olln. odor during or att.r dr/,,· Ing In h •• "y tr.mc. It 'Iou find thl. obJ.ctlonabl., you may pr.t.r to u ••• low.r "o/atlllty tu.'.
MAINTENANCE: For proper system perform­
ance, periodic canister tllter servicing II re­
quired. Every
12 months or 12,000 miles, which­
ever comes first (more often under dusty con­
ditions) the filter
In the base of the can liter
should be replaced and the canister Inspected.
NOTE: Should It .".r b. n.c •••• ry to r.pl.c. the tu.' tank cap, u •• only the .peclfl.d c.p.
NOTE: For your convenience, all of the recom­
mended services for air pollution control systems
previously discussed are summarized
by time and
mileage intervals in the Maintenance Schedule of
this manual.

Downloaded from www.Manualslib.com manuals search engine SERVICE AND MAINTENANCE
The time or mileage intervals on
the following pages are intended
as
a guide for establishing regular
maintenance and lubrication
periods for your car. Sustained
Fuel
Requirements
Your Camaro is designed to
operate efficiently on fuel of
ap­
proximately 91 Research Octane
Number or higher, commonly sold
in the United
States and Canada.
Use of a fuel which is too low in
anti-knock quality will result in
"spark knock" and/or "after-run."
Since
the anti-knock quality of all
gasoline
is not the same and factors
such
as altitude, terrain, and air
temperature affect operating
effi-
heavy duty or high speed operations
or operation under adverse condi­
tions may necessitate more frequent
servicing. To determine specific
recommendations for conditions
ciency, knocking
and/or after-run
may result even though you are
using the fuel recommended.
If
these conditions persist consult
your authorized Chevrolet Dealer.
In any case, continuous or
ex­
cessive knocking may result in en­
gine damage and constitutes mis­
use of the engine for which Chev­
rolet Division is not responsible
under the terms of the New Vehicle
Warranty.
NOTE: Read page 42 regarding
the importance
of using unleaded
or
low lead gasolines.
51
under which you use your car, con­
sult your Authorized Chevrolet
Dealer.
Gas Cap-The fuel tank filler cap
has a new two-step removal and
installation procedure plus a
pres­
sure-vacuum safety relief valve. It
is equipped with a double set of
locking tangs.
To remove:
• Rotate cap one-half turn coun­
terclockwise to clear the first set
of tangs from the slots inside the
filler neck. This will allow any
residual pressure to escape.
• Pull the cap outward and rotate
one-quarter turn counterclock­
wise to clear second set of tangs
and remove the cap.
• To install, reverse this procedure.

Downloaded from www.Manualslib.com manuals search engine the crankcase ventilation valve.
Regular replacement of the PCV
Valve
is recommended at 24-month
or
24,000-mile intervals.
G.M. Evaporation
Control SYltem
The Evaporation Control System
requires only periodic canister filter
servicing.
Every 12 months
or 12,000
miles, whichever occurs first, (more
often under dusty conditions) the
filter in the base of the canister
must be replaced and the canister
inspected.
Drive Beltl
Every 6,000 miles or 4 months­
inspect drive belts for wear, fray­
ing, cracking, and tension. Belts
which are in poor condition should
be replaced immediately.
Check tension by applying
mod­
erate thumb pressure midway be­
tween pUlleys. If the center-to­
center distance between pulleys
is
13 to 16 inches, the belt should
deflect
lh inch. If the center-to­
center distance
is 7 to 10 inches,
the belt should deflect
1;4 inch.
Loose belts should be retensioned
to give the correct deflection.
Air Cleaner
Paper Ellment Type -First
12,000 miles, inspect element for
dust leaks, holes
or other damage,
replace
if necessary. If satisfac­
tory, rotate element
1800 from
originally installed position.
Re­
place element at 24,000, miles.
Element must not be washed,
oiled, tapped or cleaned with an
air hose.
Crankca.e Ventilation Filter
(located within Air Cleaner)­
If so equipped, inspect at every oil
change and replace if necessary.
Replace at least every
24,000
miles; more often under dusty
driving conditions.
Flame Arrester -Every 12,000
55
miles-Clean the arrester (located
in the base of the air cleaner) with
kerosene
or a suitable solvent. Dry
with compressed air.
The engine air cleaner should
be installed at all times unless
temporary removal
is necessary
during repair or maintenance of
the vehicle, because in the absence
of the air cleaner backfiring could
cause
fire in the engine compart­
ment.
For maximum protection spe­
cify an AC Acron air filter ele­
ment.
Fuel Filter
Replace carburetor inlet filter
element every 12 months or
12,000 miles, whichever occurs
first or, if an in-line filter
is also
used, every
24,000 miles.
Replace in-line filter every
24,000 miles.
When replacement
is necessary,
always insist on AC Acron filters.

Downloaded from www.Manualslib.com manuals search engine MAINTENANCE SCHEDULE
This section contains a complete summary of the scheduled maintenance recommended for your vehicle.
Intarval
Every 6,000 mile. or 4 month., which· ever occur. flrat
Service To Be Performed
• Change engine oil (normal passenger car serv­
ice"). Not to exceed 6,000 miles.
•
Lubricate front suspension and steering link­age.
• Check brake lines and hoses.
• Check all lubricant and fluid levels (power
steering pump, brake master cylinder, trans­mission, rear axle, radiator, battery).
• Check Power Steering lines and hoses.
• Hood latch lubrication.
• Check manifold
heat control valve.
•
Lubricate transmission floor shift linkage.
• Check
throttle and parking brake linkage and
body parts.
• Check emission control items at first oil
change (adjust engine idle speed, dwell, igni­tion timing) .
• Check exhaust system for proper mounting , leaks, and missing or damaged parts.
Interval
At first oil change
At first
oil change and
every second
oil change
thereafter
Every
6,000
mlle&
Service To Be Performed
• Check air conditioning system hose connec­tions, refrigerant charge and for refrigerant
leaks.
• Tire and wheel condition inspection.
• Inspect accessory drive belts.
•
Lubricate parking brake pulley, cables and linkage.
Inspect crankcase ventilation filter (located in
air cleaner) and replace if necessary.
• Set idle speed , ignition timing, and dwell to
specifications.
• Change engine oil filter."
•
Rotate ti res • Lubricate parking brake pulley, cables and
linkage .
·Servlce more often during severe operating conditions as outlined under Service and Maintenance.
66