X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf17aec.mail.bellsouth.net ([205.152.59.65] verified) by logan.com (CommuniGate Pro SMTP 5.1.1) with ESMTP id 1523515 for flyrotary@lancaironline.net; Thu, 02 Nov 2006 19:32:30 -0500 Received-SPF: none receiver=logan.com; client-ip=205.152.59.65; envelope-from=rusty@radrotary.com Received: from ibm57aec.bellsouth.net ([65.6.194.9]) by imf17aec.mail.bellsouth.net with ESMTP id <20061103003154.ESPJ29144.imf17aec.mail.bellsouth.net@ibm57aec.bellsouth.net> for ; Thu, 2 Nov 2006 19:31:54 -0500 Received: from rd ([65.6.194.9]) by ibm57aec.bellsouth.net with ESMTP id <20061103003154.ZHAT3470.ibm57aec.bellsouth.net@rd> for ; Thu, 2 Nov 2006 19:31:54 -0500 From: "Russell Duffy" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: 13b Water Pump: Plugging Bypass Hole Date: Thu, 2 Nov 2006 18:31:52 -0600 Message-ID: <001201c6fedf$76a90bb0$6e01a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0013_01C6FEAD.2C0E9BB0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0013_01C6FEAD.2C0E9BB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I used a NPT tap - it was either 3/8 or 1/2" dia (its been over a = decade). I simply tapped it for a threaded aluminum hex nut plug of that diameter = and screwed it in tightly and its still there after over 10 year of running. Not bad Ed. I'll give you full credit in consideration for your aging = brain :-) =20 BTW, a good log and search engine makes up for that. Imagine how I know this :-) =20 =20 From my log: =20 Tapped the bypass hole in the water pump housing with a =BD=94 NPT tap. = This worked pretty darned well. Installed an aluminum =BD=94 pipe plug, with = just a bit of high temp RTV on the threads.=20 =20 Rusty (DAR inspection scheduled for the 11th, first flight maybe the = 12th) ------=_NextPart_000_0013_01C6FEAD.2C0E9BB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message

I used a NPT tap - it was either 3/8 or 1/2" dia  = (its been=20 over a decade).
I simply tapped it for a threaded aluminum hex nut = plug of=20 that diameter and
screwed it in tightly and its still there after = over 10=20 year of running.

Not bad = Ed.  I'll=20 give you full credit in consideration for your aging brain=20 :-)
 
BTW, a = good log and=20 search engine makes up for that.  Imagine how I know this :-)  =
 
From my=20 log:
 
Tapped=20 the bypass hole in the water pump housing with a =BD” NPT = tap.  This worked pretty darned = well.  Installed an aluminum = =BD” pipe plug, with=20 just a bit of high temp RTV on the threads.
 
Rusty (DAR inspection scheduled = for the 11th,=20 first flight maybe the 12th)




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