Posted 24 September 2011 - 08:17 PM
I just looked at the servicemotoguzzi site to be shure, it seems they didn't change it to roller tappets, When I look now it is just like the old ones. The parts catalog that everyone refers to, was downloaded from guzzi when bikes weren't even in production, so last minute they changed their minds and kept the old system. Only tappets for all engines from 2008-2011 have a new number: B014603.
Posted 25 September 2011 - 01:07 AM
What do you think that means? Just natural evolution – or did the tappets need a redesign because the current system isn't working or lasting well enough?
Natural evolution, most likely: noise standards putting pressure on MG for compliance, ZDDP being phased out of motor oil to keep catcons functioning. I think Pete has pretty much made clear that flat tappets function just fine, but may not make the regulation compliance goal(s) achievable going forward...
Posted 25 September 2011 - 10:26 AM
Posted 25 September 2011 - 09:18 PM
Maybe something like combined roler/hydraulic tappets. But then don't mention the weight of such parts.
Posted 25 September 2011 - 09:23 PM
Posted 25 September 2011 - 09:39 PM
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