Return-Path: Sender: (Marvin Kaye) To: lml Date: Thu, 31 Oct 2002 20:55:36 -0500 Message-ID: X-Original-Return-Path: Received: from pop3.olsusa.com ([209.26.218.2] verified) by logan.com (CommuniGate Pro SMTP 4.0) with ESMTP id 1849987 for lml@lancaironline.net; Thu, 31 Oct 2002 20:39:15 -0500 Received: from pintail.mail.pas.earthlink.net ([207.217.120.122]) by pop3.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-71866U8000L800S0V35) with ESMTP id com for ; Thu, 31 Oct 2002 20:29:22 -0500 Received: from sdn-ap-007watacop0068.dialsprint.net ([65.176.64.68] helo=f3g6s4) by pintail.mail.pas.earthlink.net with smtp (Exim 3.33 #1) id 187Qlq-0000qg-00 for lancair.list@olsusa.com; Thu, 31 Oct 2002 17:38:46 -0800 X-Original-Message-ID: <000201c28147$34cb6040$4440b041@f3g6s4> Reply-To: "Dan Schaefer" From: "Dan Schaefer" X-Original-To: "Lancair list" Subject: Re: LNC2. GM28 replacement X-Original-Date: Thu, 31 Oct 2002 12:09:36 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Rick: These are "gas struts", i.e., the force is provided by pressurized gas, hopefully captured by the various seals in the unit. An inescapable law of physics states (paraphrased) that gas pressure varies with it's temperature - pressure rises as the temperature rises and vice versa. This MAY be the source of your temperature dependent gear extension. I say "MAY" only because there could be other explanations (bushings binding, lubrication thickening due to low temperature, etc.) since the total volume of gas in a strut is quite small and may not see a large variation in force with the temperature changes you mention. A simple gear test on jacks while alternately heating and cooling the strut could be instructive. Dan Schaefer