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X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from wproxy.gmail.com ([64.233.184.206] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 981132 for flyrotary@lancaironline.net; Sat, 11 Feb 2006 15:06:06 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.233.184.206; envelope-from=russell.duffy@gmail.com Received: by wproxy.gmail.com with SMTP id i11so770027wra for ; Sat, 11 Feb 2006 12:05:23 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:from:to:subject:date:message-id:mime-version:content-type:x-priority:x-msmail-priority:x-mailer:importance:in-reply-to:x-mimeole; b=cKzZOvCZgUMxGq3XKJAOMQP6njjvXMjIEADtSCfFBYT7rvZNGbGLX/SGmQp9tNV7qJmo6aJrHBTPD3lzF+Oz9WS6W/cPPGgqmosT4GAl4lw05nH4ONKCLSmP7plc6FI6CqY9uKd7VfpSMXDfdNqhgw3MdVjbTSe9XE2AaXjVQ+0= Received: by 10.54.109.12 with SMTP id h12mr503564wrc; Sat, 11 Feb 2006 12:05:22 -0800 (PST) Return-Path: Received: from rd ( [65.6.194.9]) by mx.gmail.com with ESMTP id g9sm208969wra.2006.02.11.12.05.22; Sat, 11 Feb 2006 12:05:22 -0800 (PST) From: "Russell Duffy" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Melted Rotor housing Date: Sat, 11 Feb 2006 14:05:22 -0600 Message-ID: <000001c62f46$7dd5fd30$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C62F14.333B8D30" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C62F14.333B8D30 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Here is a picture of the melted rotor housing. Wow! I'd say you got your money's worth out of that one. Damn... As for the blued end housings, I'll be interested to hear what the "seen it all" folks have to say about that. Some dark spots can be considered normal, but knowing what the engine went throught, I'd be reluctant to use them again. After my oil out, I had dark areas that initially looked OK to me, but I think it was Leon who pointed out the likelyhood of cracks from the heat. Sure enough, on close examination, there were some small cracks. That was a different problem, so take the comment for what (little) it's worth. If the rotor housings got crushed as you say, are you sure the rotors weren't scuffing on the side housings? I'd presume that's what caused the overheated areas on the side housings. Did all the rotor seals come out easily, grooves look good, etc? Maybe the rotors are OK. I hate to say it, but you might be better off starting with a fresh engine. Good luck, Rusty ------=_NextPart_000_0001_01C62F14.333B8D30 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Here is a picture of the melted rotor housing.

Wow! =20 I'd say you got your money's worth out of that one. =20 Damn...

As for the=20 blued end housings, I'll be interested to hear what the "seen it all" = folks have=20 to say about that. Some dark spots can be considered normal, but = knowing=20 what the engine went throught, I'd be reluctant to use them = again. =20 After my oil out, I had dark areas that initially looked OK to me, but I = think=20 it was Leon who pointed out the likelyhood of cracks from the = heat. Sure=20 enough, on close examination, there were some small cracks. That = was a=20 different problem, so take the comment for what (little) it's = worth. =20

If the rotor=20 housings got crushed as you say, are you sure the rotors weren't = scuffing=20 on the side housings? I'd presume that's what caused the = overheated areas=20 on the side housings. Did all the rotor seals come out easily, = grooves=20 look good, etc? Maybe the rotors are OK. =

I hate to say=20 it, but you might be better off starting with a fresh engine. =20

Good=20 luck,

Rusty=20

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