Return-Path: Received: from out003.verizon.net ([206.46.170.103] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2910139 for flyrotary@lancaironline.net; Mon, 29 Dec 2003 22:29:44 -0500 Received: from netzero.net ([4.11.53.59]) by out003.verizon.net (InterMail vM.5.01.06.06 201-253-122-130-106-20030910) with ESMTP id <20031230032939.MTMG20713.out003.verizon.net@netzero.net> for ; Mon, 29 Dec 2003 21:29:39 -0600 Message-ID: <3FF0F11A.1070109@netzero.net> Date: Mon, 29 Dec 2003 22:29:30 -0500 From: Finn Lassen User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax; PROMO) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: aluminum hose bungs/fittings References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------030306090207010804090508" X-Authentication-Info: Submitted using SMTP AUTH at out003.verizon.net from [4.11.53.59] at Mon, 29 Dec 2003 21:29:38 -0600 This is a multi-part message in MIME format. --------------030306090207010804090508 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Russell Duffy wrote: > I'm now wondering if I couldn't just put about a dozen 1/8" pop > rivets, rather than welding the angle. I have to admit, that I'm > thinking about easy of replacement if one ever gets damaged away from > home. Assuming I keep a spare core with two AN12 fittings welded to > it, all I'd have to do to replace a core is drill out the > rivets, then drill and pop rivet the new core. That's the way I did it (but also JB-Weld inbetween the angles and the cores - probably not needed). Well, actually I do have two 1/4 threaded rods on the outside of the cores connecting the upper and lower angles. However, both Tracy and Ed have rubber spacing - basically clamping the cores between their mounts. Tracy's comment was that my installation would never make it in a Lycoming environment (vibrations). I never fully understood that - if cores are solidly mounted to the engine there should be no realtive motion... Finn --------------030306090207010804090508 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Russell Duffy wrote:

Message

I'm now wondering if I couldn't just put about a dozen 1/8" pop rivets, rather than welding the angle. I have to admit, that I'm thinking about easy of replacement if one ever gets damaged away from home. Assuming I keep a spare core with two AN12 fittings welded to it, all I'd have to do to replace a core is drill out the rivets, then drill and pop rivet the new core.

That's the way I did it (but also JB-Weld inbetween the angles and the cores - probably not needed). Well, actually I do have two 1/4 threaded rods on the outside of the cores connecting the upper and lower angles.
However, both Tracy and Ed have rubber spacing - basically clamping the cores between their mounts.
Tracy's comment was that my installation would never make it in a Lycoming environment (vibrations).
I never fully understood that - if cores are solidly mounted to the engine there should be no realtive motion...

Finn
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