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Three Basic Adjustments Furnish Keys to Converting Average Car for Cleaner Operation *• By DAVID L. WALKER Director, Technical Services, Champion Spark Plug Company Good things -- or bad things -- come in "threes." Three is the number of key tune-up adjustments that can convert an average car from a polluter to a relatively pollution-free vehicle. The basic steps in reducing air pollution involve correcting spark plug misfire, maintaining correct fuel/air mixture and making sure timing is set correctly. Through a series of Cleaner Air Clinics, Champion Spark Plug Company is instructing auto technicians throughout the nation in how to recognize and correct these laws. The clinics will reach more than 60,000 technicians with the latest information on con­ trolling air polution from automobiles. 'Certified Car Care' Experts Plan Launched A private industry pro­ gram to certify automobile technicians was announced by Henry Sor- enson, Presi­ dent of the In­ dependent Ga- rage Owners o f A m e r i c a (IGOA). IGOA, along with the Auto­ motive Service Industry Asso­ ciation and the Henry Sorenson National Con­ gress of Petroleum Retailers, have formed the National Automotive Technicians Cer­ tifications Board (NATCB). To receive certification, a technician must have at least tw6 years' experience in his specialty. He must also pass an examination in one or more of 15 categories of car components. Mr. Sorenson believes this system of certifying mechan­ ics preferable to government certification. Said Mr. Soren­ son, "This industry knows better than anyone else what the needed requirements for a mechanic are and we alone should establish them. I be­ lieve this is our industry's responsibility and I know we accept it." The NATCB certification plan is based on one begun by the Independent Garage Owners of Arizona. When your car's PCV valve is clogged, harmful emissions from the engine can increase by 200rr, according to Cham­ pion Spark Plug Company. MIRRORS Condition, mounting. HORN Good operation. WIND­ SHIELD Y. IPERS Condition of Blades, motor, washer. GLASS Condition, operation LIGHTS Front, rear l ight operation. Headlight alignment. Directional signals. TIRES Wear, cracks, pressure, alignment cambre. STEERING Linkage wear, play. Tie rods. Springs, absorbers. - BRAKES Fluid tevel; leaks. Foot and hand brake. Brake linings. EXHAUST SYSTEM Exhaust manifold. Muffler Condition. SPARK PLUG MISFIRE -- A two percent rate of mis­ fire can more than double the amount of unburned hy­ drocarbons. The two percent misfire is critical since the average rtiotorist cannot detect that his engine is acting up with that rate of malfunction. So he is not aware there's any­ thing wrong, let alone the fact that his car is polluting excessively. Causes of spark plug misfire include worn out spark plugs, deficiencies in other ignition components, such as points, distributor caps, rotors or cables. * . * * OVER RICH FUEL SUP­ PLY -- The function of the carburetor is to mix the gaso­ line with air. and feed the mixture to the combustion chamber. An overrich mix­ ture can result in 200 to 300 percent increased unburned hydrocarbons. , '• Typical causes of an over- rich fuel mixture include clogged air filters restricting the supply of air, improperly adjusted idle mixture and a carburetor in need of serv­ icing. * * * TIMING -- With the new anti-pollution devices on cars, some motorists complain about loss of power. * * * Some auto service techni­ cians will try to compensate for this condition by advanc­ ing the timing settings be­ yond what car makers rec­ ommend. As a result the pro­ duction of unburned hydro­ carbons can increase from 10 to 30 percent. In addition, the over advanced timing can shorten spark plug life and damage the engine, tl is in­ creasing pollution evei fur­ ther. + » » Other incidents of neglect­ ed maintenance can increase air dilution. These include "SHOCKS? CLOGGED CLEANER , A clogged air cleaner can help cause a 75 percent in­ crease in hydrocarbon emis­ sions from a car's engine. using spark plugs of incor­ rect heat range, use of im­ proper fuel for the engine and failure to keep anti-pol­ lution devices in good work­ ing condition. GOODYEAR I Tires BEAT THE SNOW AND v BUY NOW Why Get Caught in The Big Rush? You can buy your snow tires now at these LOW PRICES. We'll mount them on your wheels And put them in your trunk-When the snow flies •.. we'll mount them on your car FREE - BUY NOW I BEAT THE RUSH 600-13 BLACKWALL PLUS 1.60 EXCISE TAX FAMOUS GOODYEAR SURE GRIP IV 4-PLY NYLON | GOOD/YEAR^ MCHENRY 4400 W. Rte. 120 e 815-385-7300 Open Daily 8:30 A.M.-6:00 P.M.fc MARKET Blackwall E x c i s e T a x 600-13 2 For $32.00 $3 .20 700-13 2 For 36.00 3 .90 775-14 2 For 46.00 4 .28 825-14 2 For 50.00 4 .64 560-15 2 For 33.00 3 .48 685-15 2 For 37.00 3 .82 775-15 2 For 48.00 4 .32 825-15 2 For 50.00 4 .74 855-15 2 For 54.00 6 .08 Add. $6.00 Per Pai r For Whitewall. ACT NOW - TAKE ADVANTAGE OF THIS OFFER