| One of my rockers perforated the cylinder head cover!
Guys, today I am an unhappy man:
Yesterday I was doing an evening session at BH (with simon748 - ciao simon) when I heard a noise from the engine and the bike shut down.
Today I stripped everything down and had an ugly surprise:
One of the valve rockers in the horizontal cylinder snapped and, after causing all sorts of damage inside the desmodromic distribution system, actually perforated the cylinder head cover!
I just do not know if the stuck valve (because of the broken rocker) also damaged the piston and the rings...
Three questions:
I had the timing belts replaced less than two months ago and when I saw them today, the tension seemed a bit too loose (approx. 10mm belt swing, measured between the two front/head timing rollers). Is the gap/swing too much? Could that have caused one of the rollers' teeth to "slip" and therefore throw everything off?
Can a rocker brake for no apparent reason?
Can you comment on Pro Team (or Twin?) as the potential workshop to do this work?
Any other comments are obviously welcome...
Ciao, Mario
[Edited on 23-6-2005 by MarioP]
[Edited on 23-6-2005 by MarioP]  |