X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 30 [X] Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 13 May 2007 12:16:02 -0400 Message-ID: X-Original-Return-Path: Received: from outbound-mail.nyc.untd.com ([64.136.20.164] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with SMTP id 2042063 for lml@lancaironline.net; Sun, 13 May 2007 11:05:35 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.136.20.164; envelope-from=glong2@netzero.net Received: from your4dacd0ea75 (dialup-4.228.72.54.Dial1.Denver1.Level3.net [4.228.72.54]) by smtp04.nyc.untd.com with SMTP id AABDEQLJFAZC5FB2 for (sender ); Sun, 13 May 2007 08:04:38 -0700 (PDT) From: "glong2" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] Re: IO-550 fuel injection X-Original-Date: Sun, 13 May 2007 09:04:27 -0600 X-Original-Message-ID: <004601c79570$01b3b9e0$3648e404@your4dacd0ea75> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 Thread-Index: AceUxqsyeOSUDpiVTVqss6bncoaVlwAqAGkg In-Reply-To: X-ContentStamp: 13:6:1856707946 X-MAIL-INFO:5aed2031208de1958d31b5c1313db079a004597169912de92571150c454d4d1100a9b1d5ed40c16db4ed3db5b57dc1e1e1146971ed70b0b0e92439a4b579f9d0d4d4d19934ddc06d1455 X-UNTD-OriginStamp: QLtLkOW1eqYBwH/v5e7EPyZpvmXaupUuNA/cBdLC6ecmDv4ivXKZIw== X-UNTD-Peer-Info: 10.140.24.124|smtp04.nyc.untd.com|smtp04.nyc.untd.com|glong2@netzero.net I fixed the trap problem by shortening the flex tube connecting the NACA scoop tube to the vent tube. Thanks for the input. Eugene Long Lancair Super ES glong2@netzero.net - ----Original Message----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of John Schroeder Sent: Saturday, May 12, 2007 12:52 PM To: lml@lancaironline.net Subject: [LML] Re: IO-550 fuel injection Eugene - You might be able to duplicate the situation per your hypothesis by injecting about a dropper full of water into the NACA duct end of the vent lines. I wouldn't take off with the water in there, but you might be able to detect a slowing of the fuel feed after you go thru your fuel management routine and ground runup. If it does not repeat, you may still be able to catch a negative pressure in the tanks by droppering a little water around the filler and seeing what happens when you slowly open the cap. If the pressure were high enough to suck the water into the tank, you could tell by trying to suck the water out of the trap with a syringe/baster. If none comes out, the hypothesis would weaken (?) I don't believe our wingtip hose/vent line is in the same configuration ie. "p" trap shape. Just some noodling on this one. John PS: On Sat, 12 May 2007 12:28:23 -0400, glong2 wrote: > No I > have not drained the gas filter because I hoped to repeat the problem. Now > that I have a "high probability" solution I will sump the filter. -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html