X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from relay02.roc.ny.frontiernet.net ([66.133.182.165] verified) by logan.com (CommuniGate Pro SMTP 4.3.6) with ESMTP id 613221 for flyrotary@lancaironline.net; Sun, 24 Jul 2005 00:56:00 -0400 Received-SPF: pass receiver=logan.com; client-ip=66.133.182.165; envelope-from=canarder@frontiernet.net Received: from filter05.roc.ny.frontiernet.net (filter05.roc.ny.frontiernet.net [66.133.183.72]) by relay02.roc.ny.frontiernet.net (Postfix) with ESMTP id A12CE370117 for ; Sun, 24 Jul 2005 04:55:13 +0000 (UTC) Received: from relay02.roc.ny.frontiernet.net ([66.133.182.165]) by filter05.roc.ny.frontiernet.net (filter05.roc.ny.frontiernet.net [66.133.183.72]) (amavisd-new, port 10024) with LMTP id 19885-02-35 for ; Sun, 24 Jul 2005 04:55:13 +0000 (UTC) Received: from [127.0.0.1] (67-137-84-116.dsl2.cok.tn.frontiernet.net [67.137.84.116]) by relay02.roc.ny.frontiernet.net (Postfix) with ESMTP id 38247370104 for ; Sun, 24 Jul 2005 04:55:12 +0000 (UTC) Message-ID: <42E31F25.5050106@frontiernet.net> Date: Sat, 23 Jul 2005 23:55:01 -0500 From: Jim Sower User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040514 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Lycoming debugging test - -HELP! References: In-Reply-To: Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit X-Antivirus: avast! (VPS 0529-2, 07/21/2005), Outbound message X-Antivirus-Status: Clean X-Virus-Scanned: by amavisd-new-2.2.1 (20041222) at filter05.roc.ny.frontiernet.net Russell Duffy wrote:

Message
my local RV group is totally worthless ("I find the carnauba wax doesn't show fingerprints as much as the....")(except Mike!) the on-field mechanics are sick of me coming by.

LOL! OK, here's my guess- do you possibly have a crack in one of your exhaust pipes, probably near the cylinder, or perhaps a bad gasket? I've hear this story plenty of times on 2-smoke engines, but I would expect it to be worse on those due to the tuned exhaust. Often times the crack is almost invisible, and pretty well sealed until the pipes really heat up, then it opens up enough to cause problems.

What kind of problems? How would a [small enough to be hard to detect] exhaust leak cause such a massive power failure? What kind of failure might that be? At 2100 rpm the plane is just barely capable of level flight.

Good luck,

Rusty (no need to wax 20 year old primer)