Return-Path: Received: from imf25aec.mail.bellsouth.net ([205.152.59.73] verified) by logan.com (CommuniGate Pro SMTP 4.2b6) with ESMTP id 230426 for flyrotary@lancaironline.net; Tue, 29 Jun 2004 08:07:16 -0400 Received: from JSLADE ([209.214.14.119]) by imf25aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with SMTP id <20040629120645.ZJIM1781.imf25aec.mail.bellsouth.net@JSLADE> for ; Tue, 29 Jun 2004 08:06:45 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Fuel System Question Date: Tue, 29 Jun 2004 08:06:44 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal >will the facet fuel pump have >enough pressure to over come the returning fuel? I would think that the answer to that question is yes, but I'd suggest you wait for other more informed replies. I have a related question. My return fuel goes via a regulator and a solenoid to the proper tank. The system has been running at about 42PSI and the adjustment screw on the regulator is locked. Yesterday on a ground run I noticed that the fuel pressure was almost 50 PSI. This was the first time I'd run with the tanks almost full. I'm thinking that the return line is below the fuel level for the first time. Could that cause an 8 PSI increase in pressure or should I be looking for something else? John Slade (coming back in from the cold)