X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 913726 for flyrotary@lancaironline.net; Mon, 25 Apr 2005 08:56:36 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.71; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf23aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050425125549.QYIP2467.imf23aec.mail.bellsouth.net@rd> for ; Mon, 25 Apr 2005 08:55:49 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Soft Seals Sloppy slots S^4 Date: Mon, 25 Apr 2005 07:55:56 -0500 Message-ID: <00fe01c54996$1f3d4bc0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00FF_01C5496C.366743C0" 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 V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_00FF_01C5496C.366743C0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit If the seals were soft either by design for failure in the manufacturing process, then the wear and lost of material in a critical area of the seal combined with side forces due to the worn slot were probably not a combination due for long life. Has anyone heard what sort of reputation the Hurley's have in RX-7's? I'm sure we're stressing them more overall than what the average car does, but you would still think people would report early failures if the seals were too soft. Some of the RX-7's are putting out big HP numbers, but of course you can't do that for long on the street without ending up dead or in jail. In fact, I sold my FD to avoid the inevitable outcome :-) Add my congrats to your engine restoration. I wish you had better weather to install it, but we take what we can get. I didn't fly at all this weekend, partly because of the strong (cross) winds, and partly because the Navy was stinking up "my" airspace trying to catch up on training lost due to the hail damaged aircraft. Good luck, Rusty ------=_NextPart_000_00FF_01C5496C.366743C0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message

If the seals were soft either by design for failure in = the=20 manufacturing
process, then the wear and lost of material in a = critical area=20 of the seal
combined with side forces due to the worn slot were = probably=20 not  a
combination  due for long life.

 
Has = anyone heard what=20 sort of reputation the Hurley's have in RX-7's?  I'm sure we're = stressing=20 them more overall than what the average car does, but you would = still think=20 people would report early failures if the seals were too soft.  = Some of the=20 RX-7's are putting out big HP numbers, but of course you can't do that = for long=20 on the street without ending up dead or in jail.  In fact, I sold = my FD to=20 avoid the inevitable outcome :-)
 
Add my = congrats to your=20 engine restoration.  I wish you had better weather to install it, = but we=20 take what we can get.  I didn't fly at all this weekend, partly = because of=20 the strong (cross) winds, and partly because the Navy was stinking up = "my"=20 airspace trying to catch up on training lost due to the hail damaged=20 aircraft. 
 
Good=20 luck,
Rusty
 




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