REICHLE, CHRISTOPHER wrote:
>
> I've seen the vent pipe routed to inside the air cleaner where crank case
> fumes would get recycled and no contaminates can enter the crank through the
> vent pipe. Another option is to put a small length of hose about 3" on the
> pipe and attach a K&N mini filter to it. Looks like a small cylinder 1.5"
> dia X 2". You could even connect a pvc valve in between
> Chris Reichle
> ----------
> From: mgs-owner
> To: mgs
> Subject: Desmogging a 'B'
> Date: Thursday,May 29,1997 5:13PM
>
> >
> > If you do all the following to your engine, what system is left to control
> > crankcase ventilation?
> >
> > John Middlesworth
> >
> > On Mon, 26 May 1997, pbailey wrote:
> >
> > > Has anyone desmogged a later B? Taking the pump gulp valve off ,plugging
> > > the air holes ,running the vacuum advance directly to the distributer
> > > ,as described in Porter's DIY restoration guide?I know this isn't QUITE
> > > legal but what if any would be the benifits of doing this it looks like
> > > an easy job according to the book...Pat
> >
> To control crankcase ventilation, Bob at Brit-Tek recommended the
> following to me: take a length of appropriate-size hose, and run it
> from the riser on the engine side cover straight down so that it
> terminates in the airstream below the car. Then cut off the end of
> the hose on a slant, so the opening in the end of the hose is
> oval-shaped, and facing towards the rear of the car. At driving
> speed, this will pull the gases out of the crankcase. I knew exactly
> what Bob was talking about, because this is the same setup we have to
> draw off gas fumes on our T-34 aircraft at work. Lousy ASCII art
> follows:
> | |
> | | <----hose from engine side cover
> | |
> | |
> | /
> | / <----Slant-cut tip rear of car------>>
> | / below car in
> |/ airstream
>
> Hope this helps,
>
> Scott Gardner
> gardner@lwcomm.com
> www.lwcomm.com/~gardner
Chris, Soctt, others:
I discussed this breather pipe with the guys at Britek. Their opinion
is that although routing the crankcase breather into the air cleaner is
better environmentally, it is bad for the carb, as you are drawing a lot
of "crap" through the intake. The K&N filter idea is O.K., but the tube
idea that Scott Gardner talks about does a better job of scavenging the
crankcase gasses.
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