X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 14 Jan 2006 12:47:25 -0500 Message-ID: X-Original-Return-Path: Received: from mail3.centurytel.net ([209.142.136.99] verified) by logan.com (CommuniGate Pro SMTP 5.0.6) with ESMTP id 926494 for lml@lancaironline.net; Sat, 14 Jan 2006 11:11:29 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.142.136.99; envelope-from=rsmiley@centurytel.net Received: from rogue.centurytel.net (rogue.centurytel.net [10.10.1.30]) by mail3.centurytel.net (8.12.10/8.12.10) with ESMTP id k0EGAYxv003131 for ; Sat, 14 Jan 2006 10:10:34 -0600 (CST) Received: from gambit.centurytel.net (gambit.centurytel.net [10.10.1.16]) by rogue.centurytel.net (8.12.10/8.12.10) with ESMTP id k0EFiPf4081483 for ; Sat, 14 Jan 2006 09:45:29 -0600 (CST) X-Original-Message-ID: <5331616.1137255032410.JavaMail.root@gambit.centurytel.net> X-Original-Date: Sat, 14 Jan 2006 10:10:32 -0600 (CST) From: rsmiley@centurytel.net X-Original-To: Lancair Mailing List Subject: Re: [LML] UNEXPLAINED VIBRATION-LNC2 Mime-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Mailer: ColdFusion MX Application Server Is your engine counterweighted? Is there any rpm limitations on your prop engine combination? What is the configuration of your air intake system and does the descent procedure change the relative air flow around the intake in an unusual manner? Are you on mags or Electronic Ignition? If mags are they in good condition ie no arching evidence inside the caps, plugs normally dry or wet, stuff like that? Unusual bends in fuel line going into the carburator? These are some ideas to explore. Bob Smiley N94RJ