X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [97.64.187.24] (HELO dsmdc-mail-smtp.mcomdc.com) by logan.com (CommuniGate Pro SMTP 5.4.6) with ESMTP id 5621753 for flyrotary@lancaironline.net; Fri, 22 Jun 2012 20:20:25 -0400 Received-SPF: pass receiver=logan.com; client-ip=97.64.187.24; envelope-from=btilley@mchsi.com Received: from [192.168.199.127] ([208.62.154.8]) by dsmdc-mail-omta-03 with bizsmtp id RcKj1j0020B8AfC01cKnfy; Fri, 22 Jun 2012 19:19:49 -0500 X-Authority-Analysis: v=2.0 cv=UL1f7Vjy c=1 sm=1 a=OhEgEtyC8ATSOsblvChphw==: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=M4MKkUdw2Lk8ogaTQscA:9 a=CjuIK1q_8ugA:10 a=Qa1je4BO31QA:10 a=U8Ie8EnqySEA:10 a=fgaDyQ9hHf4A:10 a=eJojReuL3h0A:10 a=tM-3RLCYSJ5rWWG-:21 a=_R3-yh3Ov_kT8ftD:21 a=_H4AYA9usbuVgnBsOLUA:9 a=QEXdDO2ut3YA:10 a=_W_S_7VecoQA:10 a=OhEgEtyC8ATSOsblvChphw==:117 Subject: Re: [FlyRotary] Re: EGT problem found! References: From: Bob Tilley Content-Type: multipart/alternative; boundary=Apple-Mail-F3A07728-118B-4194-B503-342D1D4D9C62 X-Mailer: iPhone Mail (9B206) In-Reply-To: Message-Id: <5640BC55-066B-4F7D-BA18-4B0297C5B422@mchsi.com> Date: Fri, 22 Jun 2012 19:19:42 -0500 To: Rotary motors in aircraft Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-F3A07728-118B-4194-B503-342D1D4D9C62 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Bungs welded in a position that will allow easy and safe installation. Where= the wiring will not be consumed by heat or interference. Not at home where p= art #s are.=20 Any info on tickets for Osh? Bob On Jun 22, 2012, at 6:05 PM, CozyGirrrl@aol.com wrote: > Thanks Bob, > Welded bungs? top, bottom, side mounted? Sensor part #? > =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 3:40:18 P.M. Central Daylight Time, btilley@m= chsi.com writes: > Chrissi >=20 > I have 2 three inches from flange and another three inches from turbo exit= >=20 > Bob >=20 >=20 >=20 > On Jun 22, 2012, at 3:22 PM, CozyGirrrl@aol.com wrote: >=20 >> Speaking of EGT sensors, where would be the best place to put them on a t= urbo 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, bbradbur= ry@bellsouth.net writes: >> Tracy and others, >>=20 >> I had a problem with the #2 EGT going erratically up to over 2K. I could= n'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 th= at >> if I moved the probe back and forth along the exhaust manifold, the outpu= t >> of the probe would change up to into the 40s milivolt. At first I though= t >> 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 th= e >> wires without causing a short and so that it doesn't cause an error in th= e >> 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/Lis= t.html --Apple-Mail-F3A07728-118B-4194-B503-342D1D4D9C62 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=utf-8

Bungs welded in a position that will allow easy and safe installation. Where the wiring will not be consumed by heat or interference. Not at home where part #s are.

Any info on tickets for Osh?

Bob

On Jun 22, 2012, at 6:05 PM, CozyGirrrl@aol.com wrote:

Thanks Bob,

Welded bungs? top, bottom, side mounted? Sensor part #?

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

In a message dated 6/22/2012 3:40:18 P.M. Central Daylight Time, btilley@mchsi.com writes:

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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