X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from elasmtp-junco.atl.sa.earthlink.net ([209.86.89.63] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2131444 for flyrotary@lancaironline.net; Thu, 21 Jun 2007 09:12:15 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.63; envelope-from=jerryhey@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=CCcMUrAbR/MZRQOdSI6u7pQvsiDrd+0Ih3u/9Hh1jsElJS5HUwQgvXTFPY6aSF2f; h=Received:Mime-Version:In-Reply-To:References:Content-Type:Message-Id:From:Subject:Date:To:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [71.49.148.26] (helo=[192.168.0.101]) by elasmtp-junco.atl.sa.earthlink.net with asmtp (Exim 4.34) id 1I1MRm-0002uv-6t for flyrotary@lancaironline.net; Thu, 21 Jun 2007 09:11:38 -0400 Mime-Version: 1.0 (Apple Message framework v752.3) In-Reply-To: References: Content-Type: multipart/alternative; boundary=Apple-Mail-6-113348025 Message-Id: <988DA1E6-A0E7-42CC-9088-9EC48003F45D@earthlink.net> From: Jerry Hey Subject: Re: [FlyRotary] Re: PP construction methods Date: Thu, 21 Jun 2007 09:11:34 -0400 To: "Rotary motors in aircraft" X-Mailer: Apple Mail (2.752.3) X-ELNK-Trace: 8104856d7830ec6b1aa676d7e74259b7b3291a7d08dfec797b9ae6ba8be5a3901e704b68205b0ca2350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 71.49.148.26 --Apple-Mail-6-113348025 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=ISO-8859-1; delsp=yes; format=flowed Thanks, I made two of them about two years ago. Now that I am =20 building a single rotor, I have the luxury of having a back up =20 housing. A 1.5" i.d. port is not so small when you look at it in =20 real life. Its size guarantees an easy life for the tip seals. =20 Because of the thick wall I was able to put in several deep grooves =20 before pouring in the epoxy. A word on epoxy. I totally disagree =20 with using JB weld. There are epoxies designed for this type =20 application. One is Duralco 4525. It is intended for high temp =20 (500=BA), high performance bonding. Expensive but worth the piece of =20= mind. In application, it is extremely thin and very slow curing and =20 thus will flow completely to fill the cavity around the insert. =20 Mine took an entire day to set up. Google Duralco 4525 if =20 interested. Jerry On Jun 21, 2007, at 8:39 AM, Ed Anderson wrote: > Nice looking P port, Jerry. > > Ed > ----- Original Message ----- > From: Jerry Hey > To: Rotary motors in aircraft > Sent: Thursday, June 21, 2007 8:09 AM > Subject: [FlyRotary] Re: PP construction methods > > > On Jun 21, 2007, at 7:28 AM, Lehanover@aol.com wrote: > >> In a message dated 6/21/2007 3:12:48 A.M. Eastern Daylight Time, =20 >> lendich@optusnet.com.au writes: >> George, >> ??? Let me get this straight.........Steel tube TIG welded to =20 >> steel insert.......Then aluminum >> insert with O-ring (s) to seal to the steel tube.......? A sketch =20 >> would be worth a thousand >> words for the engineering challenged........ >> -- >> Kelly Troyer >> I would advise against welding anything to the liner. The housings =20= >> are actually very flexible, >> and will soon warp in favor of the weld beads. A thick walled =20 >> aluminum tube in a very light press fit through the inner wall.?=20 >> Same through the outer wall, but not tight through the outer wall =20 >> is also fine. The inner wall needs good support to prevent chrome =20 >> cracking when you torque up the stack. >> ? >> Lynn E. Hanover? >> > > Lynn,? similar to this?? My inserts(throttle bodies).? They are =20 > 2.25 o.d. and 1.5 i.d.? 6061 T6 ? ?Jerry > > <001c01c7b401$31f0a550$2402a8c0> > >> >> >> See what's free at AOL.com. > > --Apple-Mail-6-113348025 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1 Thanks,=A0 I made two of them = about two years ago.=A0 Now that I am building a single rotor, I have = the luxury of having a back up housing.=A0 =A0A 1.5" i.d. port is not so = small when you look at it in real life.=A0 Its size guarantees an easy = life for the tip seals.=A0 Because of the thick wall I was able to put = in several deep grooves before pouring in the epoxy.=A0 =A0A word on = epoxy.=A0 I totally disagree with using JB weld.=A0 There are epoxies = designed for this type application.=A0 One is Duralco 4525.=A0 =A0It is = intended for high temp (500=BA), high performance bonding.=A0 Expensive = but worth the piece of mind.=A0 In application, it is extremely thin and = very slow curing and thus will flow completely to fill the=A0cavity = around the insert.=A0 =A0Mine took an entire day to set up.=A0 =A0Google = Duralco 4525 if interested.=A0 =A0=A0 =A0Jerry =A0




On Jun 21, = 2007, at 8:39 AM, Ed Anderson wrote:

Nice looking P port, Jerry.
=A0
----- Original = Message -----
Sent: Thursday, June 21, 2007 8:09 AM
Subject: [FlyRotary] Re: PP construction = methods


On Jun 21, 2007, at = 7:28 AM,=A0Lehanover@aol.com=A0wrote:



Lynn,? similar to this?? My = inserts(throttle bodies).? They are 2.25 o.d. and 1.5 i.d.? 6061 T6 ? = ?Jerry




= --Apple-Mail-6-113348025--