Joe Curry wrote:
> > If you have the vent hose from the valve cover,
> > then you can block off the vent pipe at the
> > fuel pump opening. Then you have a working closed
> > system.
> Yes, YOu will have a closed system that will blow oil out the Dipstick
You blow oil out of the dipstick hole if your engine
has no venting at all, because there is nowhere for
the pressure to go, and it finds someplace.
When you have a proper vent hose from the valve
cover (as stated above) then that is where the pressure
is safely released.
Excess pressure in the crankcase is drawn out of here
by the vacuum in the carb body, then pulled through the
carbs and through the engine.
That's what it's for, it all works just fine.
Trevor Boicey, P. Eng.
Ottawa, Canada, firstname.lastname@example.org
ICQ #17432933 http://www.brit.ca/~tboicey/
Currently sentenced to a no-pucks practice.