X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp104.sbc.mail.ac4.yahoo.com ([76.13.13.243] verified) by logan.com (CommuniGate Pro SMTP 5.3.4) with SMTP id 4181102 for flyrotary@lancaironline.net; Sat, 27 Mar 2010 20:37:07 -0400 Received-SPF: none receiver=logan.com; client-ip=76.13.13.243; envelope-from=downing.j@sbcglobal.net Received: (qmail 9982 invoked from network); 28 Mar 2010 00:36:32 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=ZQ3SycV8jiGjXWWCfB6/leFKEmpq4iqvOXl8VBgKc6FyDSpDOCa+eutDSTat9QkjaCPVkIePlS1nZmHz9yV2yc8sG5WJXjTX4Ufhdl1v6FBs3WnskhohuUtXVF4rnxukMEoxqQAFTuCKpI1slMlh+pP1dvVAFv2dUw2XO+VmzP8= ; Received: from adsl-69-209-99-72.dsl.klmzmi.ameritech.net (downing.j@69.209.99.72 with login) by smtp104.sbc.mail.ac4.yahoo.com with SMTP; 27 Mar 2010 17:36:31 -0700 PDT X-Yahoo-SMTP: 4Ss7WYSswBAR3ULsDHPw5yIFKkoakpn6PCJcwuPp3izwMVSl X-YMail-OSG: Ygn7OkYVM1lj2Md3aXth.Bc7BStgwMplqkdQUfkqJC30nHFwMTZ1c.u_tNcVFFDSiKhwQX32V59M0jNMuwzJlgeUqKTKuzRgu61BR0xGbmYFIN87AsiQUG0bR6cKEs5H72C1lB9ILjPMZeIB22Ae8cxgWUEEt0GuS8niGN2goz6g8z8nGtiZcYwzriyNhTpYTuHoQg1kYebBdyxzaUnCnTiUYidog..PN375RxNduLDMNJ.NcMP8FQInYKqrFWcCuO1Hmmlad99idmPtV7m7pCinoDkBNCGHKu_w2uVcbZGCv4ggORF_.Lop X-Yahoo-Newman-Property: ymail-3 Message-ID: <3C7B6CDFA8584263B33B281548CA8171@JohnPC> From: "John" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Adaptor plate rivets - Al' 20B Date: Sat, 27 Mar 2010 20:36:42 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_005A_01CACDED.3570AB40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18005 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18005 This is a multi-part message in MIME format. ------=_NextPart_000_005A_01CACDED.3570AB40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Al, I haven't tried it on JB Weld, but doesn't it loosen with heat like = epoxy and Lock-tite. JohnD ----- Original Message -----=20 From: Al Gietzen=20 To: Rotary motors in aircraft=20 Sent: Saturday, March 27, 2010 12:12 PM Subject: [FlyRotary] Re: Adaptor plate rivets - Al' 20B Good report Al. It is interesting that there are streaks from only = the back side. Is it possible that you have cleaned the front side but = due to accessibility, didn't clean the back side?=20 No; never did any cleaning of the plate. I received my close tolerance bolts and swapped out the AN-6A bolts. = The close tolerance bolts were definitely snugger in the holes, but all = could be installed by hand without needing to be tapped or driven in = with a hammer. That's true; certainly not a press fit - but I don't think it matters. = With the 20 bolts torqued to about 20 in-lbs - beyond the torque needed = to turn the lock nuts - (I think that's about the right number for these = bolts; I'd have to double check) the clamping force between the flange = and the plate is so high as to eliminate much in the way of shear forces = on the bolts. If you're concerned, a thin film of JB weld on the bolts = before putting them in would eliminate any clearance - and make it = impossible to ever remove them. Al=20 ------=_NextPart_000_005A_01CACDED.3570AB40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Al, I haven't tried it on JB Weld, but = doesn't it=20 loosen with heat like epoxy and Lock-tite.  JohnD
----- Original Message -----
From:=20 Al = Gietzen=20
Sent: Saturday, March 27, 2010 = 12:12=20 PM
Subject: [FlyRotary] Re: = Adaptor plate=20 rivets - Al' 20B

 

Good report = Al.  It=20 is interesting that there are streaks from only the back side. =  Is it=20 possible that you have cleaned the front side but due to = accessibility, didn't=20 clean the back side?

No; never = did any=20 cleaning of the plate.

 

I received my = close=20 tolerance bolts and swapped out the AN-6A bolts.  The close = tolerance=20 bolts were definitely snugger in the holes, but all could be installed = by hand=20 without needing to be tapped or driven in with a = hammer.

That=92s = true;=20 certainly not a press fit =96 but I don=92t think it matters.  = With the 20=20 bolts torqued to about 20 in-lbs =96 beyond the torque needed to turn = the lock=20 nuts =96 (I think that=92s about the right number for these bolts; = I=92d have to=20 double check) the clamping force between the flange and the plate is = so high=20 as to eliminate much in the way of shear forces on the bolts.  If = you=92re=20 concerned, a thin film of JB weld on the bolts before putting them in = would=20 eliminate any clearance =96 and=20 make it impossible to ever remove them.

 

Al=20

 

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