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Originally Posted by lrg
Not positive but I think the bike you're thinking of is a Ducati. Not only do they have gear driven cams but the valves have two set of rockers, one that opens and one that closes the valve. No conventional valve springs. As the Brits say, it's a neat bit of kit. In that case though the engine, cams, etc. are quite a bit smaller than on a car so I think it's easier to get away with. Also, bikes don't have to worry about the emissions constraints quite so much.
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It completely eliminates the chance for valve float. Makes the valves difficult to adjust though. I tried it once and couldn't figure it out. It's very easy on my Mercedes however..
Scott
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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)
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