Cycle News - Archive Issues - 1980's

Wind (Contin ued from page 19) Lead-Substitute gas additive introduced LONG BEACH , CA ., J AN . i Engi nes designed to run o n leaded gasoli ne can safe ly use unlead ed ga soline with a new fuel add itive, accord ing to the the add itive's man u facturer, Lubrizol Corporation o f Wick liffe, Oh io. Lu brizo l cla ims its n ew P o wer Sh ield addi tive will protect en gines aga ins t va lve sea t wear under severe o pera ti ng co nditions and prevent po tential engine failu res which cou ld occu r as a res ult of red uced lead leve ls in gasoli ne. T he new additive was develo ped to provide the lu bricat in g properties of lead wi th out ca using acco m pa nyi ng poll u tio n problems. T he int rod uct io n o f Po werShield was p ro m p ted by a phaseou t o f lead ed ga soli ne init iat ed by th e U.S. Enviro n men ta l P ro tectio n Age ncy. EP A restric tio ns o n lead level s in gasolin e a llo wed 1.1 gra ms per ga llo n unt il Ju ly I, 1985, a nd 0.5 g ra m per ga llo n unti l J anuar y of th is yea r. Lead co ntent in gasoline so ld in the U ni ted Sta tes wa s reduced to an a ll- time low of 0. 1 gra m -per-ga llo n J anuary I, a nd its use in gasoline probably wi ll be p ha sed ou t co mpletely by 1988. Estimat es indi cat e about iO mil Iion engi nes designed to use lead ed gasoline a re st ill in service. T hese engines are found no t o n ly in motorcycles, but a lso in passenger G U S, truc ks, fa rm tractors, o ther machinery, a nd recreationa l power boats. If these engi nes ar e operated a t hi gh speeds whi le burn in g gasoline co ntaini ng less than 0.5 gram of lead per ga llo n, serious da mage may occ ur to val ve sea ts in cylinder heads. Mot o rcycl e eng ines design ed to operate o n unl eaded gasoli ne have harden ed valve sea ts, or hard a lloy va lve sea t inse rts . In o lder bike eng ines , designed for use wit h leaded gas, va lvesea ts are softer an d unl eaded fuel o ffers n o p rot ect ion aga inst impac t a nd a brasion . Exha ust valve sea ts , in p arti c u la r , ca n ra pid ly becom e worn or recessed u nd er severe ope ra ting co n ditio ns. Perform an ce de teri o rat es, event ua lly lead in g to eng ine fai lu re. T he process inv o lves forma ti on of ha rd , iron o xide d eposit s, or lumps, on th e val ve face , follow ed bv local welding to th e valve sea t, th en sepa ratio n a n d rem o va l o f metal fro m th e valve sea t. As th e cycle repeat s itself, the valve sea t reced es into th ecy li nd er head , result in g in a loss o f co m p ressio n a nd power. PowerSh ieId will help prevent such dam age, acco rd ing to Lubrizol. The co m pa n y claims that at n ormal en g i ne -o pe ra t i n g temper atures . PowerShield chemi stry ac ts as a protective lubricant between ex ha ust valves a n d sea ts - much lik e th e lead in lead ed ga so line - preventin g th e direct met al -to-met al co ntact th at resu lts in h igh wea r. La b tests by Lubrizol indicat e Pow erShield o ffers valve seat pr ot ection eq ua l or superior to tha t provided by lead a nt iknock, wh en added to low-lead fuel s a t the recommended co ncent ra tio n (0.1% weigh t in gas o li ne). Officials a lso claim th e additi ve offers an indi rect benefit by clea n ingt he enure fuel system, "includ in g carburetors a nd fuel injectors. Th e n ew additive is in stock at Lubrizol a nd ready for shipment to refin ers a nd ble nd ers o f gaso lines, and su p p liers of p a ck a ged aftermar ket fuel addi tives. It has been regi stered wit h the EPA as a su p p lemen t fo r lo w-le ad gaso lin e; EPA ap pro va l is pe n ding. • r::)t.'~~ · b~~ Connecticut's Original One and Only ~\G~O~ :\' c; ~~S· RCYCLE £., \)1 0 , C yo~ ~ ~4f~~ w.~ * ~ ~I *~ AND .,.~O FOUR WHEEL DRIVE SHOW ~ For Trade and Consumer ~ Hartford Civic Center ~ SELLING A 80NAN. Hartford, Co nn. JAN. 31st fEB. 1st· 2nd 1986 Z1 SEE ALL THE NEW 1986 MOTORCYCLES & FOUR WHEEL DRIVE VEHICLES SHOW ALL UNDER ONE ROOF, DEALERS ARE SELLING! TIM ES FRI. JAN 31 WITH SHOW SPECIALS, AND BARGINS GALORE! 6PM -1 1 PM * SEE TAMRA JA'NELL - NEW "MISS HARLEY DAVIDSON !" * SAT. FEB. 1 NOON - 11 PM LEATHER FASHION SHOW! * SU N. FEB. 2 * SEE THE PROFESSIONAL BMX TRICK TEAM * NOON - 6 PM * SEE CUSTOM BIKES AND CUSTOM 4x4 TRUCKS * * MOTORCYCLES & 4x4 CLUB & RACING EXHIBITS * '" * CHECK OUT A FULL RANGE OF KID KARS - THEY'RE FOR R E A , " , * WIN A KID KAR FOR FREE, BRING THE KIDS * .' _ ,, ' * WIN A FULL SIZE MOTORCYCLE FOR FREE * * SEE THE INCLUDING GODZlLLA! VIIORLD'S LARGEST MONSTER 4x4 EVERYBODY'S COMING NEW ENGLAND'S 1986 MOTORCYCLE EXPO AND FOUR WHEEL DRIVE SHOW TWO SHOWS FOR THE PRICE OF ONE .(YOU DON'T HAVE TO WAIT IN LINE) Tickets Available Through Ticketron BOX OFACE ~o

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