X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost03.isp.att.net ([204.127.217.103] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with ESMTP id 5544430 for flyrotary@lancaironline.net; Tue, 15 May 2012 23:35:10 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.103; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-74-235-253-90.mco.bellsouth.net[74.235.253.90]) by isp.att.net (frfwmhc03) with SMTP id <20120516033435H0300f3ah5e>; Wed, 16 May 2012 03:34:36 +0000 X-Originating-IP: [74.235.253.90] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] High EGTs Date: Tue, 15 May 2012 23:34:38 -0400 Message-ID: <9C0A2BB7076C4C6091F50FE498B0A2DA@Desktop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0015_01CD32F3.4BDAE1D0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: Ac0zBo4SfmI6MyNCSZ6SHpQ1rHZS9wADU53A X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 This is a multi-part message in MIME format. ------=_NextPart_000_0015_01CD32F3.4BDAE1D0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Brian, When the engine is cold, all my temp sensors read within a couple of degrees of one another. They all read the ambient temp and are probably within 3 degrees. That is two OAT sensors, two oil temp sensors, water temp, two aux air temps, etc. My EGTs seem high as well, but the highest I have seen is 1775. They usually run around 1700. I think 1600 or so is the lowest I have seen. Never in the 15s. I am going to try Bobby's suggestion and crank the rpm back to 1700 on the prop and see what that does for it. Bill _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of bktrub@aol.com Sent: Tuesday, May 15, 2012 9:52 PM To: Rotary motors in aircraft Subject: [FlyRotary] High EGTs My engine is now running just the way it should, temps were 180 or lower on a 75 degree day, but my EGTs have always been high, really high- above 1800 almost all the time. I think it may be a calibration issue. My egt sensors are about 3 inches downstream of the exhaust ports, and I am using Tracy's EM2, calibrated at the stock settings. When the engine is stone cold, the egt's read about 230 degrees, which I assume is normal because the sensors are meant to operate at a much higher temperature. Any thoughts? Brian Trubee ------=_NextPart_000_0015_01CD32F3.4BDAE1D0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Brian,

When the engine is cold, all my = temp sensors read within a couple of degrees of one another.  They all = read the ambient temp and are probably within 3 degrees.  That is two OAT = sensors, two oil temp sensors, water temp, two aux air temps, = etc.

 

My EGTs seem high as well, but the = highest I have seen is 1775.  They usually run around 1700.  I think = 1600 or so is the lowest I have seen.  Never in the 15s.  I am going = to try Bobby’s suggestion and crank the rpm back to 1700 on the prop and = see what that does for it.

 

Bill

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of bktrub@aol.com
Sent: Tuesday, May 15, = 2012 9:52 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] High = EGTs

 

My engine is now running just the = way it should, temps were 180 or lower on a 75 degree day, but my EGTs have = always been high, really high- above 1800 almost all the time. I think it may = be a calibration issue. My egt sensors are about 3 inches downstream of the = exhaust ports, and I am using Tracy's EM2, calibrated at the stock settings. When the engine is stone cold, = the egt's read about 230 degrees, which I assume is normal because the sensors are = meant to operate at a much higher temperature. Any = thoughts?

 

=

Brian = Trubee

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