that's the evacupan system. popular with the V8 crowd for years.
chuck
----- Original Message -----
From "David N Waldmann" <david at vermonthardwoods.com>
> David Vizard details exhaust extraction for ventilating the crankcase. It
> uses the flow of exhaust gasses past a tube inserted just after the header
> and requires an anti-backfire valve to prevent explosions, as well as a
free
> flowing exhaust system to be effective.
>
> He has a name for the idea, but I can't remember what it is.
> > My 1275 vents through the breather can on the timing chain cover and
> > (I guess) through the oil cap orifices. Doesn't seem like a whole lot
> > of venting. I've read about adding a crankcase vent at the unused
> > mechanical fuel pump spot. Is that worthwhile? Also seems that a
> > substantial vent in the valve cover would also help reduce pressures
> > that push oil past the crankshaft scroll "seal."
> >
> > Comments?
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