X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf24aec.mail.bellsouth.net ([205.152.59.72] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 1009248 for flyrotary@lancaironline.net; Tue, 21 Jun 2005 15:45:46 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.72; envelope-from=atlasyts@bellsouth.net Received: from ibm68aec.bellsouth.net ([68.213.226.209]) by imf24aec.mail.bellsouth.net with ESMTP id <20050621194501.BIIO26489.imf24aec.mail.bellsouth.net@ibm68aec.bellsouth.net> for ; Tue, 21 Jun 2005 15:45:01 -0400 Received: from [192.168.0.104] (really [68.213.226.209]) by ibm68aec.bellsouth.net with ESMTP id <20050621194501.OGGM29052.ibm68aec.bellsouth.net@[192.168.0.104]> for ; Tue, 21 Jun 2005 15:45:01 -0400 User-Agent: Microsoft-Entourage/11.1.0.040913 Date: Tue, 21 Jun 2005 15:44:59 -0400 Subject: Re: [FlyRotary] Re: EFI return fuel testing From: Bulent Aliev To: Rotary motors in aircraft Message-ID: In-Reply-To: Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3202213501_1426664" > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3202213501_1426664 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable On 6/21/05 11:12 AM, "Al Gietzen" wrote: > One of the Velocity builders with a Soob (Wayne =AD something) said he had = so > much foam returning to the sump tank from the pressure regulator that the= foam > would come out of the fuel system vent. He added a small reservoir of som= e > kind in the vent line as a foam/liquid separator. That apparently solved= his > problem. > =20 > In the 4-5 hours of running time I have on my 20B I have not observed any= foam > from the stock venting; nor have I heard of anyone else observing this > phenomenon. Why in one case, I have no idea. But the potential for foam > buildup is there, and it is something to keep in mind when designing your= fuel > system. > =20 > Al First time I hear that? I know diesel is foaming, but gas? Maybe some kid put dish washing soap in his tanks? :) Buly --B_3202213501_1426664 Content-type: text/html; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Re: [FlyRotary] Re: EFI return fuel testing On 6/= 21/05 11:12 AM, "Al Gietzen" <ALVentures@cox.net> wrote:

One of the Velocity builders with a Soob (Wayne –= something) said he had so much foam returning to the sump tank from the pre= ssure regulator that the foam would come out of the fuel system vent. He add= ed a small reservoir of some kind in the vent line as a foam/liquid separato= r.  That apparently solved his problem.
 
In the 4-5 hours of running time I have on my 20B I have not observed any f= oam from the stock venting; nor have I heard of anyone else observing this p= henomenon.  Why in one case, I have no idea.  But the potential fo= r foam buildup is there, and it is something to keep in mind when designing = your fuel system.
 
Al

First time I hear that? I know diesel is foaming, but gas? Maybe some kid p= ut dish washing soap in his tanks? :)
Buly --B_3202213501_1426664--