X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost01.isp.att.net ([204.127.217.101] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2385605 for flyrotary@lancaironline.net; Sat, 13 Oct 2007 22:07:09 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.101; envelope-from=rusty@radrotary.com Received: from rad (adsl-065-006-194-009.sip.pns.bellsouth.net[65.6.194.9]) by bellsouth.net (frfwmhc01) with SMTP id <20071014020633H0100a67p1e>; Sun, 14 Oct 2007 02:06:33 +0000 X-Originating-IP: [65.6.194.9] From: "Russell Duffy" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Heater Outlet Threaded? Date: Sat, 13 Oct 2007 21:06:33 -0500 Message-ID: <000001c80e06$d83e66e0$6c01a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C80DDC.EF685EE0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6822 Importance: Normal Thread-Index: AcgN/3waDFBLG4hASmqduLYtdDAmdQABYLvQ In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C80DDC.EF685EE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Is it really screwed into the housing? If so, would it be to much to = hope for it to be 1/2"npt? Any ideas on how to salvage the simple barbed on = hose setup? Hi Scott, =20 I've pulled these out of a few housings, and they've all been pressed = in. My goal was to plug them up, so I measured the remaining hole, and found that a 3/4"-10 tap works perfectly. I use a big allen head bolt, and an o-ring type washer to seal it. =20 I always figured I could drill out one of these bolts, then tap the hole = for a normal size pipe thread, or I could weld a fitting on the drilled out bolt. It's a goofy size thread, so there's no hope of finding something = off the shelf. For the life of me, I can't recall why I didn't drill and = tap it for a normal size, but I have to believe there was a good reason (maybe = not enough material for the next NPT size???). =20 =20 Since it's all together, all this drilling and tapping seems like a bad idea, though Ed's method sounds safe enough. =20 =20 Cheers, Rusty =20 ------=_NextPart_000_0001_01C80DDC.EF685EE0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Is it really screwed into the housing?  If so, = would it be=20 to much to  hope for it to be 1/2"npt? Any ideas on how to salvage = the=20 simple barbed on hose setup?

Hi=20 Scott,
 
I've = pulled these out of=20 a few housings, and they've all been pressed in.  My goal was to = plug them=20 up, so I measured the remaining hole, and found that a 3/4"-10 tap works = perfectly.  I use a big allen head bolt, and an o-ring type washer = to seal=20 it.
 
I always figured I could drill = out one of=20 these bolts, then tap the hole for a normal size pipe thread, or I = could=20 weld a fitting on the drilled out bolt.  It's a goofy size = thread, so=20 there's no hope of finding something off the = shelf.  For the life of me, I can't recall why I = didn't drill=20 and tap it for a normal size, but I have to believe there was a = good reason=20 (maybe not enough material for the next NPT size???).  =
 
Since it's all together, all = this drilling=20 and tapping seems like a bad idea, though Ed's method sounds safe=20 enough.  
 
Cheers,
Rusty
   
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