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Date:         Tue, 26 Jun 2007 11:40:33 -0400
Reply-To:     Benny boy <huotb@VIDEOTRON.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Benny boy <huotb@VIDEOTRON.CA>
Subject:      Re: Gear driven, timing belts, chains, etc. NVC
Comments: To: Karl Mullendore <groups@WESTYVENTURES.COM>

Ducati need frequent (3k to 5k miles) adj. They are nice exotic V-Twin bike... period.

My Suzuki SV1000S V-Twin goes a 20k miles between valve adj. produce way more power and torque for the same amounth of CC.

The RC51 is also an awsome V-Twin, sadly, it's run way to hot for the legs.

They all use T-Chain, but i fitted mine with an external T-Belt :-), a Subi one...

Ben

On Tue, 26 Jun 2007 00:46:58 -0400, Karl Mullendore <groups@WESTYVENTURES.COM> wrote:

>What rock have you guys been sleeping under? :-) Ducati has been continually >using desmodromic valvetrain for years. Some kinda linkage?? How about two >rocker arms, one opens, one closes, both running on the same camshaft, so >they can't possibly get out of sync. And they still use this today, works >great. BTW, the bevel-gear shaft? Gone, MANY years ago, like the early >'80's, replaced by a wonderfully reliable two-belt system. Something about >Italian metallurgy, but my 1992 907ie has always had the valves spot-on >every time I've checked them in the past 30,000 miles. In fact, the bike has >not needed anything other than oil changes, tires, and a chain, in addition >to the regular tune-ups and belts. > >On Tue, 26 Jun 2007 14:01:11 +1200, Andrew Grebneff ><andrew.grebneff@STONEBOW.OTAGO.AC.NZ> wrote: > >>> Ducatti had a desmodromic valve train..One tower shaft driven gear >>> between the cylinders with some kinda linkage to both open and close >>> each valve...no springs.. >> >>Yep. Imagine what happens ig the open & close cam settings interfere with >>one another... no wonder Ducatis are normally buggered before the warranty >>period runs out (a local used-bike importer refiuses to touch 'em for this >>reason). I wonder why Ducati dropped desmos...

Ducati


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