Return-Path: Received: from mail.viclink.com ([206.212.237.11] verified) by logan.com (CommuniGate Pro SMTP 4.3c1) with ESMTP id 726112 for flyrotary@lancaironline.net; Sat, 12 Feb 2005 09:16:03 -0500 Received-SPF: none receiver=logan.com; client-ip=206.212.237.11; envelope-from=pjmick@mail.viclink.com Received: from mail.viclink.com (pt67-76.onlinemac.com [198.92.67.76]) (authenticated bits=0) by mail.viclink.com (8.13.2/8.13.2) with ESMTP id j1CEFFHm079895 for ; Sat, 12 Feb 2005 06:15:16 -0800 (PST) Message-ID: <420E0EDF.6080205@mail.viclink.com> Date: Sat, 12 Feb 2005 06:12:47 -0800 From: Perry Mick User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Fly Rotary Subject: Vapor Lock Content-Type: multipart/alternative; boundary="------------080204030604000307060601" --------------080204030604000307060601 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Hi, Perry....One question....Does your unburned fuel (from the fuel rail) go back into your sump tank also? Or do you return the unused fuel to one of your fuel tanks? If I were returning fuel to one of the main tanks, I would think that venting the sump would be appropriate, but since I am sending fuel undere pressure back into the sump tank, I am concerned that once the sump tank is full, the additional fuel pumped back into the sump tank would take the path of least resistance....out the vent instead of back up the fuel line into the tank? Thanks for your input. Paul Conner One other comment Paul: the fuel return from the fuel rail is not pressurized. The pressure regulator maintains HP on the fuel rail side, but the fuel return output back to the sump is not under high pressure. --------------080204030604000307060601 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Hi, Perry....One question....Does your unburned fuel (from the fuel rail) go back into your sump tank also? Or do you return the unused fuel to one of your fuel tanks? If I were returning fuel to one of the main tanks, I would think that venting the sump would be appropriate, but since I am sending fuel undere pressure back into the sump tank, I am concerned that once the sump tank is full, the additional fuel pumped back into the sump tank would take the path of least resistance....out the vent instead of back up the fuel line into the tank? Thanks for your input. Paul Conner

One other comment Paul: the fuel return from the fuel rail is not pressurized. The pressure regulator maintains HP on the fuel rail side, but the fuel return output back to the sump is not under high pressure.
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