X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [97.64.187.22] (HELO dsmdc-mail-smtp.mcomdc.com) by logan.com (CommuniGate Pro SMTP 5.4.6) with ESMTP id 5621619 for flyrotary@lancaironline.net; Fri, 22 Jun 2012 16:40:16 -0400 Received-SPF: pass receiver=logan.com; client-ip=97.64.187.22; envelope-from=btilley@mchsi.com Received: from [10.201.33.85] ([166.147.112.20]) by dsmdc-mail-omta-01 with bizsmtp id RYff1j0070STc9A01YffD6; Fri, 22 Jun 2012 15:39:40 -0500 X-Authority-Analysis: v=2.0 cv=O4q7TWBW c=1 sm=1 a=WV+5DVYesRPuh9YilMvjvA==:17 a=lHMTA0a4jwcA:10 a=BlNAP0SAIawA:10 a=Hd4JvI9PAAAA:8 a=3oc9M9_CAAAA:8 a=V0sYiUSkAAAA:8 a=pedpZTtsAAAA:8 a=7g1VtSJxAAAA:8 a=Ia-xEzejAAAA:8 a=Xf2SESqVIcO3ZdHmvjcA:9 a=CjuIK1q_8ugA:10 a=Qa1je4BO31QA:10 a=U8Ie8EnqySEA:10 a=eJojReuL3h0A:10 a=JsxDFul0ZE3KVuQ1:21 a=E-aeVrrZkb2WsEZt:21 a=2LdG55T7qFgwBWN9F9sA:9 a=QEXdDO2ut3YA:10 a=_W_S_7VecoQA:10 a=WV+5DVYesRPuh9YilMvjvA==:117 Subject: Re: [FlyRotary] Re: EGT problem found! References: From: Bob Tilley Content-Type: multipart/alternative; boundary=Apple-Mail-F810B9C2-4461-4216-A74E-D2F9272219C9 X-Mailer: iPhone Mail (9B206) In-Reply-To: Message-Id: Date: Fri, 22 Jun 2012 15:39:37 -0500 To: Rotary motors in aircraft Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-F810B9C2-4461-4216-A74E-D2F9272219C9 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Chrissi I have 2 three inches from flange and another three inches from turbo exit Bob On Jun 22, 2012, at 3:22 PM, CozyGirrrl@aol.com wrote: > Speaking of EGT sensors, where would be the best place to put them on a tu= rbo engine? > =20 > =20 > Chrissi & Randi > www.CozyGirrrl.com > CG Products, Custom Aircraft Hardware > Chairwomen, Sun-N-Fun Engine Workshop > =20 > In a message dated 6/22/2012 2:54:58 P.M. Central Daylight Time, bbradburr= y@bellsouth.net writes: > Tracy and others, >=20 > I had a problem with the #2 EGT going erratically up to over 2K. I couldn= 't > find anything wrong with the probe, so I sent the EM-2 to Tracy for > evaluation. He didn't find anything wrong with the EM-2 so back to the > drawing board! >=20 > I got my hangar mate to come out and give me an assist. We discovered tha= t > if I moved the probe back and forth along the exhaust manifold, the output= > of the probe would change up to into the 40s milivolt. At first I thought= > that I was somehow getting voltage onto the exhaust manifold and it was > being picked up by the probe. >=20 > Turns out that the probe connects to the thermocouple wire with two ring > connectors and the edges of the ring connectors were cutting thru the > insulation of the adjacent wire causing a short. >=20 > Tracy has sent the EM-2 back and now I need to figure a way to connect the= > wires without causing a short and so that it doesn't cause an error in the= > output. >=20 > Anyone have a suggestion about how to do that?? >=20 > Bill B >=20 >=20 > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List= .html --Apple-Mail-F810B9C2-4461-4216-A74E-D2F9272219C9 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=utf-8

Chrissi

I have 2 three inches from flange and another three inches from turbo exit

Bob

On Jun 22, 2012, at 3:22 PM, CozyGirrrl@aol.com wrote:

Speaking of EGT sensors, where would be the best place to put them on a turbo engine?

Chrissi & Randi
www.CozyGirrrl.com
CG Products, Custom Aircraft Hardware
Chairwomen, Sun-N-Fun Engine Workshop

In a message dated 6/22/2012 2:54:58 P.M. Central Daylight Time, bbradburry@bellsouth.net writes:

Tracy and others,

I had a problem with the #2 EGT going erratically up to over 2K. I couldn't
find anything wrong with the probe, so I sent the EM-2 to Tracy for
evaluation. He didn't find anything wrong with the EM-2 so back to the
drawing board!

I got my hangar mate to come out and give me an assist. We discovered that
if I moved the probe back and forth along the exhaust manifold, the output
of the probe would change up to into the 40s milivolt. At first I thought
that I was somehow getting voltage onto the exhaust manifold and it was
being picked up by the probe.

Turns out that the probe connects to the thermocouple wire with two ring
connectors and the edges of the ring connectors were cutting thru the
insulation of the adjacent wire causing a short.

Tracy has sent the EM-2 back and now I need to figure a way to connect the
wires without causing a short and so that it doesn't cause an error in the
output.

Anyone have a suggestion about how to do that??

Bill B

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