X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop: No license found, only first 5 messages were scanned Return-Path: Received: from imo-m27.mx.aol.com ([64.12.137.8] verified) by logan.com (CommuniGate Pro SMTP 5.1c.1) with ESMTP id 1211484 for flyrotary@lancaironline.net; Thu, 29 Jun 2006 00:45:22 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.8; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m27.mx.aol.com (mail_out_v38_r7.5.) id q.518.244b47c (33856) for ; Thu, 29 Jun 2006 00:44:26 -0400 (EDT) From: WRJJRS@aol.com Message-ID: <518.244b47c.31d49926@aol.com> Date: Wed, 28 Jun 2006 22:47:02 EDT Subject: Re: [FlyRotary] P-Port Water Jacket Seal To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1151549222" X-Mailer: 9.0 SE for Windows sub 5027 X-Spam-Flag: NO -------------------------------1151549222 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 6/28/2006 4:54:11 PM Pacific Standard Time, joeh@pilgrimtech.com writes: If a person was to convert a 13B that happened to be sitting around to P-Port, how does one seal around the P-Port tube that goes into the rotor chamber. The area where the tube goes through the housing is a water passage. I suspect the answer is "JB Weld" or some other epoxy. But will that really hold up in the long run without developing even little cracks that water under pressure won't go through? Thanx, Joe Hull Cozy Mk-IV #991 (In Phase1 Flight Test - 40.2 hrs flown) Redmond (Seattle), Washington Joe, There are several methods. 1 is of course the JB weld method. Many other methods are possible as well. Some people have threaded the area if a round tube is used. Sealler is still advised, but is less likely to leak or fail on the threaded section. A light press fit is another option. Use a minimal amount of sealer just to be sure. I am trying to do a interlocked tube using a shrink fit using liquid nitrogen to cool the tube insert. As many possibilities as people doing the mod I guess! Bill Jepson -------------------------------1151549222 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 6/28/2006 4:54:11 PM Pacific Standard Time,=20 joeh@pilgrimtech.com writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>If a=20 person was to convert a 13B that happened to be sitting around to
P-Por= t,=20 how does one seal around the P-Port tube that goes into the=20 rotor
chamber.  The area where the tube goes through the housing i= s a=20 water
passage.

I suspect the answer is "JB Weld" or some other=20 epoxy. But will that really
hold up in the long run without developing=20= even=20 little cracks that water
under pressure won't go=20 through?

Thanx,
Joe Hull
Cozy Mk-IV #991 (In Phase1 Flight Te= st -=20 40.2 hrs flown)
Redmond (Seattle), Washington
<= /DIV>
Joe,
There are several methods. 1 is of course the JB weld method. Many othe= r=20 methods are possible as well. Some people have threaded the area if a round=20= tube=20 is used. Sealler is still advised, but is less likely to leak or fail on the= =20 threaded section. A light press fit is another option. Use a minimal amount=20= of=20 sealer just to be sure. I am trying to do a interlocked tube using a shrink=20= fit=20 using liquid nitrogen to cool the tube insert. As many possibilities as peop= le=20 doing the mod I guess!
Bill Jepson
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