X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 03 Apr 2012 10:21:24 -0400 Message-ID: X-Original-Return-Path: Received: from nm17.bullet.mail.gq1.yahoo.com ([98.137.176.59] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with SMTP id 5466044 for lml@lancaironline.net; Mon, 02 Apr 2012 22:56:34 -0400 Received-SPF: neutral receiver=logan.com; client-ip=98.137.176.59; envelope-from=browncc1@verizon.net Received: from [98.137.12.61] by nm17.bullet.mail.gq1.yahoo.com with NNFMP; 03 Apr 2012 02:55:59 -0000 Received: from [68.142.200.225] by tm6.bullet.mail.gq1.yahoo.com with NNFMP; 03 Apr 2012 02:55:59 -0000 Received: from [66.94.237.111] by t6.bullet.mud.yahoo.com with NNFMP; 03 Apr 2012 02:55:59 -0000 Received: from [127.0.0.1] by omp1016.access.mail.mud.yahoo.com with NNFMP; 03 Apr 2012 02:55:59 -0000 X-Yahoo-Newman-Id: 113981.43591.bm@omp1016.access.mail.mud.yahoo.com Received: (qmail 34552 invoked from network); 3 Apr 2012 02:55:58 -0000 X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: Uku6ERsVM1n7FmJERC17N0oiyPUOAM3ZaQpoo0FB0K_aQ5P 4t4EGikEz6msF_X2XNcafl5_Db.02Uex7QxGuhHJ6U4OqweJ5ZpiLC3linuK DqsqeI4EDX5kX_FALloccsYzL1z2CH52EXItn9HCPIvXEVqoxfWAZ2am4F6n 0iA9MICOg_fT04p.YicapKxzBB8E03RFt1MDNbcbBOUVq3IwhvleDOLUTiYi 81ujL3AJXlWewXRRJJ.lc___GXBXTdfb.VzPXpUg6tJGBvEpM.DfTFOgXzEn GsG.SNrYKBfX1GyBZ2L9utGz01BQNIlG1DjUcyifZ2bn.IazGgmgUcItSevp aWWVhqhDUDj1.QqpVNVf6bgVrjZz6dexk2iCOr9xGE6FRDcJqm0oKY_I2Rte ZISjN7eJQ4hzy5d8I56xPw96jVn_Nl.5uknGz0TufNPaYEJlmrm05L0DxGY8 gcYo0ACZQMqBjHg8WssTo8Yb0w6ZJlujuoPVCrsKhycl2YLOYamXZxAiexP1 scUf69GGa471U5_NknpyE.MCNlQaIiWVALZsi_85wZm79acsMKecRHfQo5aw - X-Yahoo-SMTP: F49l9g6swBC0R9n8vJIbm7Tf3P8Xlmia8rHIwTlO__Ml Received: from new-host-2.home (browncc1@72.64.81.165 with plain) by smtp103.vzn.mail.bf1.yahoo.com with SMTP; 02 Apr 2012 19:55:58 -0700 PDT Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1084) Subject: Re: [LML] engine movement From: Charles Brown In-Reply-To: X-Original-Date: Mon, 2 Apr 2012 21:55:57 -0500 Content-Transfer-Encoding: quoted-printable X-Original-Message-Id: <60BB998B-927C-4FC9-8669-6CF9D2D3F324@verizon.net> References: X-Original-To: "Lancair Mailing List" X-Mailer: Apple Mail (2.1084) Paul, great shot, thanks. My engine, at 110 hr total time, is now (at = rest) flush with the cowl; it started out 1/4" high so has sagged 1/4 = inch in 6mo/110 hours. Also, it's now Bug Season in Texas and I have = observed bugs on the upper cowl behind the spinner to a depth of about = 3/8" (and none on the lower cowl). So I conclude that flight loads pull = my spinner down about 3/8". The mounts are standard-issue, whatever = that is (I got the firewall forward fast build) -- look like basic big = ol Lord mounts. But I'm going to shim them and try to de-sag things. On Apr 2, 2012, at 1:59 PM, Paul Miller wrote: This photo demonstrates how much the engine pulls down (and also to the = left) relative to the cowl during normal operation in the Legacy. This = was from a photo shoot at normal power. At rest, the spinner is flush = with the cowl so I estimate at least an inch drop. This corresponds to = what I'm finding with interference on the lower cowl but it is at least = an inch away when I remove the cowl for inspection. My plan is to shim = up the mount at the front two isolators. These are relatively new Berry = mounts, no shims installed. All of the hard hits I previously had on the = upper cowl are now removed. I use a white primer between flights inside = the upper cowl to provide witness marks and the most recent flights have = shown no interference. However, I still get interference during flight = at cruise RPMs that I am starting to identify on the lower cowl. = Hopefully, those are the last. Tight cowling + twisting engines =3D = lot of work. Paul Legacy RG Spruce Creek <_BJV1340c.jpeg>-- For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html