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cause malfunction of the crankcase
ventilation PCV valve resulting in
an increase of crankcase emissions
and cause improper engine idle con-
ditions. Regular replacement of the
PCV valve is recommended at
12-month or 12,OOO-mile
intervals.
Always specify an AC PCV valve
at replacement time.
• Belt Adjustments-To assure prop-
erperformance of belt-driven en-
gine components, all belts should be
checked and adjusted periodically.
• Carbon Deposits-A degree of car-
bon buildup is normal in the com-
bustion chambers of any gasoline
engine, depending upon oil and fuel
quality and operating conditions.
For best results follow the fuel and
oil recommendations in this manual.
• Air Conditioner -'- Annual mainte-
nance is necessary to assure proper
performance. Adding of refrigerant
may be necessary from time to time.
• Paint, Chrome, Convertible Top
and Trim-are affected by normal
wear and exposure. Proper main-
tenance and care of these item~ can
add to their appearance and dura-
bility.
B. Replacement Items
• Brake linings-are directly affected
by driving habits and use; the re-
placement of brake linings and the
reconditioning of brake drums
(discs) should be performed when
necessary.
• Spark Plugs and Ignition Points-
49
are subject to wear and/or contam-
ination. They should be inspected
periodically and replaced if
.
neces-
sary for maximum engine perform-
ance and economy.
For maximum performance and
economy for your Chevrolet vehicle
replace with General Motors parts
which are ident-
I
I
UGl
ified by one of
.
GM
0 G
these trademarks.
-
.......
Do!"
• Filters -
perform the important
function of cleaning air, fuel or oil
and should be serviced at recom-
mended intervals.
• Wiper Blades-life is dependent
upon use and climatic conditions
and they should be replaced when
necessary.
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