X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [67.8.183.189] (account marv@lancaironline.net) by logan.com (CommuniGate Pro WebUser 5.0.9) with HTTP id 1117624 for lml@lancaironline.net; Wed, 17 May 2006 17:42:45 -0400 From: "Marvin Kaye" Subject: Re: [LML] Lycoming 360 A1A durability question - piston pin plug wear To: lml X-Mailer: CommuniGate Pro WebUser v5.0.9 Date: Wed, 17 May 2006 17:42:45 -0400 Message-ID: In-Reply-To: <0cfb01c67967$2468acf0$0a01a8c0@bruce1> References: <0cfb01c67967$2468acf0$0a01a8c0@bruce1> X-Priority: 3 MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format="flowed" Content-Transfer-Encoding: 8bit Posted for "Bruce Gray" : What you're seeing is piston pin CAP ware. Lycoming has known about this issue for almost 10 years and has yet to do anything about it. Both Superior and ECI make piston caps that have a better longevity than Lycoming. Bruce www.glasair.org -----Original Message----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Clark Baker """ Last week, at 370hrs SMOH (the second one) I discovered material amounts of aluminum material in the filter. I discovered that I had excessive piston pin plug wear. It turns out Lycoming issued Service Instruction 1492C, which addressed problems with excessive piston pin plug wear. Lycoming addressed this by extending the warranty for Lycoming new or Lycoming factory rebuilt engines from 1year to 3. I spoke to my Engine shop manager and they said "it is just one of those things" and they don't have a good answer. I spoke to Lycoming and the technician could not offer any advice other than replace the parts and try again. """