Trevor Boicey wrote:
>
> Tyson Sherman wrote:
> >
> > Ulix Goettsch wrote:
> >
> > > There is a point above which one shouldn't rev, and that is when the
> > > valves loose contact with the cam. This is referred to as valve ______
> >
> > <SNIP>
> > "crash speed" is what you're looking for. Atleast that's what
> > the Bentley manual calls it for a B. It's 6200rpm in that
> > car where redline starts at 6000.
>
> I think he wants "valve float".
>
> They float above the cam, and can cause damage if they hit
> the piston. Usually though you lose so much power from float
> that you don't go much past it.
>
> --
> Trevor Boicey
> Ottawa, Canada
> tboicey@brit.ca
> http://www.brit.ca/~tboicey/
... or valve bounce in the UK. I used to work across the road from a
'garage', and their standard method of diagnosis, tuning and repair
seemed to be to rev the engine up to valve bounce and hold it there for
several seconds at a time.
PaulH.
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