Robert E. Leiby and David L. Dunbar Lehigh County C operative Extension Office Many owners of older tractors with engines designed to run on leaded fuel experience problems with spark plug fouling. This problem has coincided with the petroleum industry’s movement toward marketing unleaded fuel without tetraethyl lead in it. By now, most owners of oldei equipment realize that there were two reasons tetraethyl lead was added to gasoline. The main rea son was to increase the octane rat ing of the fuel, enhancing the combustion characteristics of the fuel within the cylinder. The sec ond reason was to provide lead oxide and lead halide by-products of combustion, which acted as a solid lubricant between the valves and the valve seats, preventing the hard valves from grinding their way through the softer seats. One thing owners had not real ized until recently is that unleaded fuel tends to run richer than leaded fuel. As a result, the spark plugs tend to foul with carbon, which makes the plugs misfire. This cre ates more carbon, compounding the problem. The result is spark plugs that fail to perform as desired after as few as 10 to 20 minutes of operation. Fortunately, plug fouling 10% Cash Discount Thru March 30th J PRESSURE * _ WASHERS eco/ SH2SF3OIS 5 HP HONDA ROPE START - 3 GPM, 1500 PSI <£&* _ 2E25F2212 2 HP ELECTRIC-110 VAC, 2.2 GPM, 1200 PSI ALL MODELS FEATURE: Adjustable pressure regulating unloader, to set & maintain system pressure Adjustable down stream chemical injector with inlet hose Shut off gun with plastic insulated lance & quick coupling Variable nozzle, featuring adjustable spray angles & pressure cleaning flexibility 3/8" very flexible Gates Wash Master high pressure hose with swivel ft quick disconnect Safety by-pais thermo valve which minimizes excessive heat build up Standard 2 wheel cart with 10" pneumatic tires Beiler Repair Shop RD #2 BOX 54 Watsontown, Pa. 17777 Martin Saw Shop RR 1 BOX 669 Port Treaverton, Pa. 17864 Aaron S. Groff & Sons 103 Clearvlew Rd. Ephrata, Pa. 17522 717-354-4631 Yoders Air & Hydraulics RD 1 BOX 113 Meyersdale, Pa. 15552 Spark Plugs Fouled By Unleaded Fuel appears to be isolated to tractors built before the mid-’7os, accord ing to Jim Garthe, Penn State agri cultural engineer. Tractors built during the late ’4os and through out the ’sos seem to be particular ly vulnerable, probably because of the 6-volt ignition system, which lacks adequate voltage to help bum off or through the carbon deposits. Garthe says increasing spark plug heat range will not solve the problem, nor will changing the brand name or plug gap. The best solution is to lean out the fuehair mixture slightly and to assure the timing advance is correct by using a timing light or dwell techometer. If these recommendations fail to give both you and your engine renewed vitality, you should con sider probing deeper. Check the compression of all cylinders and make sure they meet specifica tions. Monitor oil consumption and exhaust smoke to see if it is time for new piston rings or valve guide oil seals. Lastly, inspect valve clearances routinely to make sure that valve recession is not occurring due to the unleaded fuel. Conservation Reserve Program Sign-Up The tenth Conservation Reserve Program (CRP) sign-up will be March 4 through March 15. Basically, highly erodiblc land that was cropped in two of the last -5H25F3015-C* S HP HONDA ROPE START-3 GPM, 1500 > 3E25F3014-C* 3 HP electric -220 VAC, • i 3 GPM, V'X»..a Available At: live years (1986-1990) could qualify. However, under new CRP program provisions, bids on eligi ble land will be accepted based on environmental benefits obtained per dollar of cost to USDA’s Commodity Credit Corporation. Producers should not rely on bid amounts which have been accepted in previous years when making their bids. Land eligibility requirements will be expanding from past sign ups to include not only highly erodible land, but also other crop land acres that might impair water quality. CRP bids will be received only for contracts beginning in 1991 and bid acceptance determinations will be made after a nationwide review and evaluation. Fifty percent cost share assis tance will continue to be available to establish needed permanent vegetative cover, including trees, on the accepted acres. Annual rental payments for ten years also will be paid to CRP participants based upon their bid. Contact the Agricultural Stabil ization and Conservation Service Office for more information at 215-395-4161. Featuring SUPER FLOW PUMPS 8H45F4020-C* 8 HP HONDA ROPE START 11H45F4525-C* 11 HP HONDA ELECTRIC START 4.5 GPM, 2500 PSI 5E45F4020-C* 5 HP ELECTRIC MOTOR -220 VAC, 4 GPM 2000 PSI Martin Hardware & Equip. Rt. 501 South of Schaefferstown RD #1 Box 287 Newmanstown Pa. 17073 717-949-6817 Pine Glen Farm Service RD #2 Box 166 Lewistown, Pa. 17044 717-899-7400 Beiler Hydraulics 252 N. Shirk Rd., New Holland, Pa. 717-354-6066 Dealer Inquiries Call 717-354-6066 Agricultural Conservation Easement Deadline Friday, March 15 is the dead line for submitting an application to the Lehigh County Agricultural Land Preservation Board for the first 1991 funding round of the Lehigh County Agricultural Con servation Easement Program. In this farmland preservation program, Lehigh County farmland owners who are in an agricultural security area can apply to sell their development rights to the county and the Commonwealth of Pennsylvania. Five Lehigh County applicants have accepted purchase offers for agricultural conservation case ments from the county board. If the State Agricultural Land Pre servation Board approves all five of these purchases, Lehigh County will soon have more than 650 acres of permanently preserved farmland. Easement values arc deter mined by appraisal. To date, appraised agricultural conserva tion easement values in Lehigh County have ranged from $625 pre acre to $3,400 per acre. For more information on the program and the application pro- JM FISHER’S PAINTING & RESTORATION B ALL TYPES 0F ,NTER,OR & EXTERIOR up i PAINTING ■ SANDBLASTING ■ ROOF COATING ■ RESTORATION & WATERPROOFING ON STONE & BRICK BUILDINGS HOUSES - BARNS - FENCES - FACTORIES - ETC. Specialists in Sand Blasting/Spray Painting Farm Buildings, Feed Mills, Roofs, Tanks, Etc. With Aerial Equipment 4056 A Newport Rd., Kinzers, PA 17535 717-768-3239 On Rt. 772 Across From Pequea Valley School ‘Brush, ‘Rfftt Or Spray ■ ‘We 'tt ‘Do It ‘Either ‘Way for Jobs Large Or Smatt • Our Men ‘Witt Do It Att What Do You Need? Soooo Bucket Elevators Dra B Conveyors ... ,«■ <’V NC We Not Only Give You Whot We Have Bui Whdt You Wont WE CUSTOM MANUFACTURE: Painted, Galvanized, and Stainless Steel Fabrication, Feed Bins, Feeders, Hoppers, Covers, Dump Pits, Augers, and Control Systems to Automate Your Operation All At - ■ ■ automatic farm systems aFs m Lancaster Farming, Saturday, March 16, 1991-C5 cess, call Jeff Zehr at (215) 391-9583 or slop by the Lehigh County Agricultural Center, Suite 105, 4184 Dorncy Park Road, Allentown (South Whitehall Township). Phone (215) 391-9840 for more information about the following events: • Pennsylvania’s Agricultural Economy - Trends, Issues and Prospects. A conference for far mers, managers of ag-rclalcd businesses, members of the agri cultural press, and representatives of government agencies and inter ested environmental and consum er groups. Wednesday and Thurs day, March 20 and 21, J. O. Keller Conference Center, University Park. Registration fee: $75. • Practicing Stewardship and Living a Land Ethic. A conference for natural resource managers and other professionals who work with forests, forest resources, and the public. Tuesday and Wednesday, March 26 and 27, Harrisburg Mar riott, Harrisburg. Registration fee; $65. • Pennsylvania Beef Expo. This (Turn to Pago C 8) GSI Grain Drying Equip. Ofeg^. Aeration & Drying Fans Augers HQNEYVILIE Bucket Elevators 608 Evergreen Rd., Lebanon, PA 17042 (717) 274-5333 More Opportunities To Learn