Read the first post (the one I responded to).
Bob
On 2/3/2012 6:59 AM, warthodson@aol.com wrote:
> How does a backfire in the header ignite fumes in the crankcase? They are not
>connected.
> Gary Hodson
>
>
> -----Original Message-----
> From: Bob Spidell <bspidell@comcast.net>
> To: Ed O'Neal <ed@wadsworth-eng.com>
> Cc: healeys <healeys@autox.team.net>
> Sent: Fri, Feb 3, 2012 8:26 am
> Subject: Re: [Healeys] PCV valve
>
> A backfire in the header could cause the crankcase fumes to ignite.
>
> PCV valves prevent this (from this
>site:http://autorepair.about.com/library/a/1h/bl616h.htm):
>
> "*In case of a backfire in the intake manifold*: the valve closes, stopping
>the
> back flow and preventing ignition of
> fumes in the crankcase."
>
>
> Bob
>
>
>
> On 2/3/2012 5:12 AM, Ed O'Neal wrote:
> > I'll step into this discussion. An old racing tip. Weld a small tube
> > (3/8"-1/2") into one of the exhaust header pipes inclined 45 deg to the
> > exhaust flow. The other end of the tube is connected )via some route) to
>the
> > crankcase cavity. The connection at the exhaust hearer will act as a
>venture,
> > drawing blowby gases from the crankcase, achieving a slight negative
>pressure
> > therein and reducing oil leaks.
> >
> > Any thoughts?
> >
> > Red Flash
> > _______________________________________________
> >
> >
> >
>
>
> --
> *******************************************************************
> Bob Spidell San Jose, CAbspidell@comcast.net
><mailto:bspidell@comcast.net>
>
> *******************************************************************
> _______________________________________________
> Support Team.Nethttp://www.team.net/donate.html
> Suggested annual donation $12.75
> Archive:http://www.team.net/archive
> Forums:http://www.team.net/forums
>
> Healeys@autox.team.net <mailto:Healeys@autox.team.net>
> http://autox.team.net/mailman/listinfo/healeys
>
>
>Unsubscribe/Manage:http://autox.team.net/mailman/options/healeys/warthodson@aol.com
>
--
*******************************************************************
Bob Spidell San Jose, CA bspidell@comcast.net
*******************************************************************
_______________________________________________
Support Team.Net http://www.team.net/donate.html
Suggested annual donation $12.75
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
|