X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qmta11.emeryville.ca.mail.comcast.net ([76.96.27.211] verified) by logan.com (CommuniGate Pro SMTP 5.4c2a) with ESMTP id 4834886 for flyrotary@lancaironline.net; Tue, 01 Feb 2011 21:23:25 -0500 Received-SPF: pass receiver=logan.com; client-ip=76.96.27.211; envelope-from=hoursaway1@comcast.net Received: from omta06.emeryville.ca.mail.comcast.net ([76.96.30.51]) by qmta11.emeryville.ca.mail.comcast.net with comcast id 2q7m1g00116AWCUABqNots; Wed, 02 Feb 2011 02:22:48 +0000 Received: from sz0081.ev.mail.comcast.net ([76.96.26.137]) by omta06.emeryville.ca.mail.comcast.net with comcast id 2qNn1g00x2xV6SL8SqNnFj; Wed, 02 Feb 2011 02:22:48 +0000 Date: Wed, 2 Feb 2011 02:22:47 +0000 (UTC) From: hoursaway1@comcast.net To: Rotary motors in aircraft Message-ID: <150457092.2221928.1296613367655.JavaMail.root@sz0081a.emeryville.ca.mail.comcast.net> In-Reply-To: Subject: Re: [FlyRotary] Re: Tension Bolt Extracted ... what a relief! MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_2221926_1846193084.1296613367653" X-Originating-IP: [68.61.190.35] X-Mailer: Zimbra 6.0.5_GA_2431.RHEL5_64 (ZimbraWebClient - IE8 (Win)/6.0.5_GA_2427.RHEL4) ------=_Part_2221926_1846193084.1296613367653 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Check with Lynn I think you are to use the larger bolts ONLY, maybe can rep= lace one at a time & not dissturb anything, I do know that the larger bolts= were used on the eng. that Bruce built.=C2=A0=C2=A0 David R. Cook=C2=A0 RV= 6A=C2=A0=20 ----- Original Message -----=20 From: "Jeff Whaley" =20 To: "Rotary motors in aircraft" =20 Sent: Tuesday, February 1, 2011 3:21:53 PM=20 Subject: [FlyRotary] Re: Tension Bolt Extracted ... what a relief!=20 Hmmm =E2=80=A6 that=E2=80=99s a scary thought, as there are 15 other bolts = in question.=C2=A0 Either this one was lighter coated, lighter tensioned th= an the rest or the others are also in jeopardy.=20 I put a heavier spiral on the replacement bolt, which is also larger in dia= meter.=20 Jeff=20 From: =09 Tracy =20 Sender: =09 rwstracy@gmail.com=20 Subject: =09 Re: [FlyRotary] Tension Bolt Extracted ... what a relief!=20 Date: =09 Tue, 1 Feb 2011 12:47:16 -0500=20 To: =09 Rotary motors in aircraft =20 =09=09 Message Header Undecoded Message Looks like you needed to be much more generous with the RTV when installing= . =C2=A0 It should look a LOT messier than what yours looked like. =C2=A0 T= here needs to be enough to smear off on the housings when installing.=20 Tracy=20 On Mon, Jan 31, 2011 at 12:26 PM, Jeff Whaley < jwhaley@datacast.com > wrot= e:=20 We were minutes away from an engine tear-down, when we tried one more time = to extract the broken tension bolt.=C2=A0 The bore scope allowed us to see = exactly where the pilot hole was drilled into the broken piece; the left-ha= nd drill bits would not grab on and extract the part but did help in enlarg= ing the hole and perhaps loosening the threads a little.=C2=A0 Ultimately I= was able to start an easy-out with light tapping and it grabbed on =E2=80= =93 the result is in the attached photo.=C2=A0 The easy-out is welded to th= e end of the original broken bolt and you can see that a spiral of RTV was = applied to the length of the bolt between the threads and the bolt head.=20 Jeff=20 Jeff Whaley=20 Manager, Test and Repair=20 International Datacasting Corp.=20 Tele: 613-596-4120 (ext: 2295)=20 Fax:=C2=A0 613-596-9208=20 www.datacast.com=20 __________ Information from ESET NOD32 Antivirus, version of virus signatur= e database 5838 (20110201) __________=20 The message was checked by ESET NOD32 Antivirus.=20 http://www.eset.com=20 This message, and the documents attached hereto, is intended only for the a= ddressee and may contain privileged or confidential information. Any unauth= orized disclosure is strictly prohibited. If you have received this message= in error, please notify us immediately so that we may correct our internal= records. Please then delete the original message. Thank you.=20 ------=_Part_2221926_1846193084.1296613367653 Content-Type: multipart/related; boundary="----=_Part_2221927_2123430932.1296613367653" ------=_Part_2221927_2123430932.1296613367653 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <= div style=3D'font-family: Arial; font-size: 12pt; color: #000000'>Check wit= h Lynn I think you are to use the larger bolts ONLY, maybe can replace one = at a time & not dissturb anything, I do know that the larger bolts were= used on the eng. that Bruce built.   David R. Cook  RV6A&nb= sp;
----- Original Message -----
From: "Jeff Whaley" <jwhaley@dat= acast.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironlin= e.net>
Sent: Tuesday, February 1, 2011 3:21:53 PM
Subject: [FlyRot= ary] Re: Tension Bolt Extracted ... what a relief!

Hmmm =E2=80=A6 that=E2=80=99s a scary thought, as ther= e are 15 other bolts in question.  Either this one was lighter coated,= lighter tensioned than the rest or the others are also in jeopardy.

I put a heavier spiral on the replacement bolt, which = is also larger in diameter.

Jeff

 

=

From:

Tracy <tracy@rotaryaviation.com>

Sender:

rwstracy@gmail.com

Subject:

Re: [FlyRotary] Tension Bolt Extracted ... what a relief!

Date:

Tue, 1 Feb 2011 12:47:16 -0500

To:

Rotary motors in aircraft <flyrotary@lancaironline.net>=



3D"Undecoded= =

Looks like you needed to be much more generous with the RTV w= hen installing.   It should look a LOT messier than what yours looked = like.   There needs to be enough to smear off on the housings when ins= talling.

 

Tracy

On Mon, Jan 31, 2011 at 12:26 PM, Jeff Whaley <jwhaley@datacast.com> wrote:

We were minutes away from an engine tear-down, when we tried one = more time to extract the broken tension bolt.  The bore scope allowed = us to see exactly where the pilot hole was drilled into the broken piece; t= he left-hand drill bits would not grab on and extract the part but did help= in enlarging the hole and perhaps loosening the threads a little.  Ul= timately I was able to start an easy-out with light tapping and it grabbed = on =E2=80=93 the result is in the attached photo.  The easy-out is wel= ded to the end of the original broken bolt and you can see that a spiral of= RTV was applied to the length of the bolt between the threads and the bolt= head.

Jeff

 

 

Jeff Whaley<= /B>
Manager, Test and= Repair

International Datac= asting Corp.

w= ww.datacast.com

 



__________ Information from ES= ET NOD32 Antivirus, version of virus signature database 5838 (20110201) ___= _______

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com
This message, and the documents = attached hereto, is intended only for the addressee and may contain privile= ged or confidential information. Any unauthorized disclosure is strictly pr= ohibited. If you have received this message in error, please notify us imme= diately so that we may correct our internal records. Please then delete the= original message. Thank you.
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