It doesn't have to be. For the "tightest" oil control you would plug the
valve cover or do what I did putting the crankcase at a vacuum. You can
also put a filter on either the valve cover or the timing cover, putting
the crankcase at essentially atmospheric with some flow thru the system. I
went for maximum oil control, and figured I'd work my way towards
atmospheric from there.
----------
> From: Ulix Goettsch <ulix@u.washington.edu>
> To: Ron Soave <redlotus@spacey.net>
> Cc: Scott & Glenda Meyers <autox@earthlink.net>; spridgets@autox.team.net
> Subject: Re: PCV Valve/Drippy 1275
> Date: Monday, December 14, 1998 12:31 PM
>
> Ron,
>
> isn't the valve cover usually the INLET for the carankcase ventilation?
> Where is air entering your crancase? A vented oil cap?
>
> Ulix
>
> On Sun, 13 Dec 1998, Ron Soave wrote:
>
> > > For those of us who only 'kinda' paid attention to the other posts,
would
> > you
> > > mid sharing in some detail how you hooked this up to your 1275?
> >
> > Personally, I routed two hoses, one from the valve cover spigot and one
> > from the timing cover into a "Y" fitting. The "y" is then routed into
the
> > valve, which I am using inline in heater hose (it is not an inline
valve,
> > I'm just using it that way, it has pipe thread on one end, and a hose
bead
> > on the other, 1/4 inch or 3/8 if memory serves, and it'll have to serve
> > since I'm too lazy to walk 9 feet to the garage). From the PCV valve,
it's
> > more heater hose into a 1/4" pipe-to-hose adapter fitting (90 angle)
into
> > the intake of my Cannon manifold (no hole provided on the intake, just
a
> > flat; drill and tap it yourself). I did it this way for max PCV, and
> > routed it for esthetics. It is very low profile, and I wire brushed
and
> > clearcoted all the fittings to give a polished look. Actually on my
car, I
> > was pulling a bit too much vacuum with this valve on throttle lift, and
was
> > seeing puffs of smoke, never on power or under load, just at "vacuum"
> > situations. I feared it was guides (although they are new), but
jetting
> > down the PCV with orifices has worked well.
> >
>
> Ulix __/__,__
> .......................................................... (_o____o_)....
> '67 Sprite
>
|