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X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2120778 for flyrotary@lancaironline.net; Wed, 20 Jun 2007 08:19:39 -0400 Received-SPF: none receiver=logan.com; client-ip=205.152.59.71; envelope-from=rusty@radrotary.com Received: from ibm66aec.bellsouth.net ([65.6.194.9]) by imf23aec.mail.bellsouth.net with ESMTP id <20070620121900.EWBQ22883.imf23aec.mail.bellsouth.net@ibm66aec.bellsouth.net> for ; Wed, 20 Jun 2007 08:19:00 -0400 Received: from rd ([65.6.194.9]) by ibm66aec.bellsouth.net with ESMTP id <20070620121900.WRLF18678.ibm66aec.bellsouth.net@rd> for ; Wed, 20 Jun 2007 08:19:00 -0400 From: "Russell Duffy" To: "'Rotary motors in aircraft'" Subject: PP construction methods Date: Wed, 20 Jun 2007 07:19:00 -0500 Message-ID: <001b01c7b335$2ef25320$6e01a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001C_01C7B30B.461C4B20" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6822 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 Importance: Normal Thread-Index: AcezNS38UCCh/VwASiun7sbvwoE4Ug== This is a multi-part message in MIME format. ------=_NextPart_000_001C_01C7B30B.461C4B20 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Greetings, =20 One of the things that's always bothered me about making a PP housing is leakage. I've heard very experienced folks say that eventually, any PP housing you make will leak, and it's easy for me to imagine that = happening. I don't think I've heard the same thing about factory housings though. = How are the ports installed in the factory PP housing? =20 =20 The other problem with a conversion is the side ports. I know people = fill these with their favorite epoxy, but I'd worry about that coming loose, = and getting into the rotor. How much would it hurt the PP operation if you = just sealed the ports on the outside of the side housings with a plate where = the intake would have been? =20 =20 Cheers, Rusty =20 ------=_NextPart_000_001C_01C7B30B.461C4B20 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message

Greetings,

One of the = things that's=20 always bothered me about making a PP housing is leakage. I've = heard very=20 experienced folks say that eventually, any PP housing you make will = leak, and=20 it's easy for me to imagine that happening. I don't think = I've heard=20 the same thing about factory housings though. How are the ports = installed in the=20 factory PP housing?

The other = problem with a=20 conversion is the side ports. I know people fill these with their = favorite=20 epoxy, but I'd worry about that coming loose, and getting into the = rotor. =20 How much would it hurt the PP operation if you just sealed the = ports on the=20 outside of the side housings with a plate where the intake would have=20 been?

Cheers,

Rusty

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