Return-Path: Received: from [65.173.216.72] (HELO mtasmtp2-clev.cle.ms.philips.com) by logan.com (CommuniGate Pro SMTP 4.0.6) with ESMTP id 2046428 for lml@lancair.net; Fri, 07 Mar 2003 15:03:35 -0500 Received: from picker.com ([149.59.192.105]) by mtasmtp2-clev.cle.ms.philips.com (Lotus Domino Release 5.0.11) with SMTP id 2003030715032974:75442 ; Fri, 7 Mar 2003 15:03:29 -0500 Received: from [144.54.52.3] (HELO philips.com) by picker.com (CommuniGate Pro SMTP 3.3b1) with ESMTP id 16386736 for lml@lancair.net; Fri, 07 Mar 2003 15:03:27 -0500 Sender: rob Message-ID: <3E68F976.12A2C553@philips.com> Date: Fri, 07 Mar 2003 14:56:38 -0500 From: Rob Logan Reply-To: Rob@Logan.com X-Mailer: Mozilla 4.75 [en] (X11; U; SunOS 5.5.1 sun4u) X-Accept-Language: en, pdf MIME-Version: 1.0 To: lml@lancair.net Subject: Re: FUEL SURGE X-MIMETrack: Itemize by SMTP Server on mtasmtp2-clev/P/SERVER/PHILIPS-CLE(Release 5.0.11 |July 24, 2002) at 03/07/2003 03:03:29 PM, Serialize by Router on mtasmtp2-clev/P/SERVER/PHILIPS-CLE(Release 5.0.11 |July 24, 2002) at 03/07/2003 03:03:41 PM, Serialize complete at 03/07/2003 03:03:41 PM Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii From: "Sajid Ahmed" Dear Noel, I just read about your problem of the fuel surge. I have flown a Mooney for 2000 hrs and I had this kind of problem. The aircraft total time was 700 hrs with the same engine hrs. The Mooney is not Turbo Charged. I would have the same problem, the engine would run perfectly and then suddenly I would loose power and the fuel pressure and fuel flow would drop to almost nothing and could be rectified with running the Electric fuel pump. The power would come back and there would be no more problems for about seven to eight days and then it would happen again. I suspected the Fuel tanks, cleaning found nothing, checked electric fuel pump for bypass valve nothing. Then one day the Engine driven pump failed and would not come back with the electric pump. This was the day I found out that it was the Engine Driven pump which was giving me the warnings which I could not understand. What was happening actually. The relief valve inside the engine driven fuel pump would open to send the extra fuel back to fuel tanks and this valve would not close and thus the engine would loose fuel flow and fuel pressure and under normal circumstances the electric fuel would push the valve close and the engine would perform normal. I am not sure what is happening to your engine but it is worth looking into it. Mooney's Engine pump failed at only 700 hrs since NEW. I hope this can help you find the problem. I sure would like to know how you fix this problem. I am just about to test flight my Lancair IV-P. Regards. Sajid Ahmed.