X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-iy0-f180.google.com ([209.85.210.180] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTPS id 5040867 for flyrotary@lancaironline.net; Sat, 02 Jul 2011 22:50:22 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.210.180; envelope-from=rwstracy@gmail.com Received: by iyh42 with SMTP id 42so6285502iyh.25 for ; Sat, 02 Jul 2011 19:49:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=subject:references:from:content-type:x-mailer:in-reply-to :message-id:date:to:content-transfer-encoding:mime-version; bh=/f2GaP0TtOea/abtoSkj37+qeExR6limsA3BxJV0H4c=; b=f0Zli10x14WmJe91D4mSdWxmokcbLqMj0vpBbwpM/ek1eXVG565Ink7L+QRjqQfuit QLv/wL+FRsvJC17ef1cYnaA04ZHFSNJu7qXNqW4OqTfJwB5PST7p7sqrEpafIAnUzny9 TGE52wIO//kqle5Q/0Rl3VEPVJ901+3UYitMs= Received: by 10.42.8.10 with SMTP id g10mr5722328icg.137.1309661385438; Sat, 02 Jul 2011 19:49:45 -0700 (PDT) Return-Path: Received: from [10.0.1.3] (99-197-145-127.cust.wildblue.net [99.197.145.127]) by mx.google.com with ESMTPS id j7sm4974369icq.14.2011.07.02.19.49.37 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 02 Jul 2011 19:49:44 -0700 (PDT) Subject: Re: [FlyRotary] EGT and EM2 References: From: Tracy Content-Type: multipart/alternative; boundary=Apple-Mail-1-641695288 X-Mailer: iPad Mail (8F191) In-Reply-To: Message-Id: <95A330BC-4C39-4CCA-A6D0-6B6587895C73@gmail.com> Date: Sat, 2 Jul 2011 22:49:21 -0400 To: Rotary motors in aircraft Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (iPad Mail 8F191) --Apple-Mail-1-641695288 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Thought I had commented on this before. This symptom is most likely caused= by impulse noise from routing the EGT lines too close to ignition leads or o= ther high noise Sources. The thermocouples generate low level signals in th= e millivolt range so it doesn't take much to spike the reading. =20 Tracy Sent from my iPad On Jul 2, 2011, at 9:22 PM, Chris Barber wrote: > I have written about this before but continue to have issues.=20 >=20 > =20 >=20 > My EGT readings are inconsitant. They seem to give what would seem to be a= correct reading but then seem to cycles to much higher readings. So, it ma= y show 1500 but then jump to 3000, then 6500 then 7200 (or whatever) and the= n start from what seems to be low to high. >=20 > =20 >=20 > I have not been sitting on my hands fretting. I had sent the unit back to= Tracy and mentioned it and he found nothing amiss. Since then I have repla= ced all connections to the EM2, new thermalwire, new connectors and now new s= ensors from "thesensorconnnection" all to no avail. While not flight essent= ial, I hate that I can't solve the problem. I tire of throwing money and ti= me at it. I have looked at grounds, redid connections and tried a few diffe= rent connections methods (where I connect the thermal wire from the EM2 to t= he thermalwire from the actual EGT connector. >=20 > =20 >=20 > This is becomeing a real annoyance. I am currently finishing up my A/C in= stall (95% done) and them I am back to my first squawk list...quite short no= w) before I have a squawk "party...yeah, yall are all invited....not time, j= ust show up, I will do what I can to make it a party ;-)) before I pay a DAR= . >=20 > =20 >=20 > Ya'll's input is appreciated. >=20 > =20 >=20 > Chris Barber >=20 > Velocity N17010 >=20 > Houston, Texas >=20 > 13b Turbo/Mistral Intake --Apple-Mail-1-641695288 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=utf-8

Thought I had commented on this before. This symptom is most likely caused by impulse noise from routing the EGT lines too close to ignition leads or other high noise Sources. The thermocouples generate low level signals in the millivolt range so it doesn't take much to spike the reading.

Tracy

Sent from my iPad

On Jul 2, 2011, at 9:22 PM, Chris Barber <cbarber@texasattorney.net> wrote:

I have written about this before but continue to have issues.

My EGT readings are inconsitant . They seem to give what would seem to be a correct reading but then seem to cycles to much higher readings. So, it may show 1500 but then jump to 3000, then 6500 then 7200 (or whatever) and then start from what seems to be low to high.

I have not been sitting on my hands fretting. I had sent the unit back to Tracy and mentioned it and he found nothing amiss. Since then I have replaced all connections to the EM2 , new thermalwire , new connectors and now new sensors from "thesensorconnnection " all to no avail. While not flight essential, I hate that I can't solve the problem. I tire of throwing money and time at it. I have looked at grounds, redid connections and tried a few different connections methods (where I connect the thermal wire from the EM2 to the thermalwire from the actual EGT connector.

This is becomeing a real annoyance. I am currently finishing up my A/C install (95% done) and them I am back to my first squawk list...quite short now) before I have a squawk "party...yeah, yall are all invited....not time, just show up, I will do what I can to make it a party ;-)) before I pay a DAR.

Ya'll's input is appreciated.

Chris Barber

Velocity N17010

Houston, Texas

13b Turbo/Mistral Intake

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