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Date: Thu, 7 Jun 2012 11:46:49 -0400
Message-ID: <CAA9qwZuhHQLHQnTM2q9BhYTOOQeRnyMhjY__9hUwrvPUKSBPnA@mail.gmail.com>
Subject: Re: [FlyRotary] EGT
From: Tracy <rwstracy@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Possible it may be going open (thermocouple sensors are normally a shorted
junction) but also possible you are picking up noise on the leads from some
source.  These are millivolt level signals so it doesn't take much noise to
make a wild reading.  Keep leads away from high tension wires (spark plug
leads)  and lines with a lot of switching current (injector, ignition coil
power, etc).

Tracy

On Wed, Jun 6, 2012 at 11:01 PM, <hoursaway1@comcast.net> wrote:

> Info needed about EGT sensors, on my RWS EM2 #2 EGT about every 10 seconds
> will come up as 4000 deg. F. or so.  Is the sensor going open or shorted
> intermittently.  Have not checked it yet, just removed break-in oil after
> 24 hrs. run time & went with 20w50w full synthetic, getting ready for first
> flight ( got delayed last year by coolant & oil temp readings in-op.,
> solved & my youngest daughter grad. EMU, Meagan & Cody moved to Bloomington
> Illinois for Cody's new job, with dad as one of the movers ).    David R.
> Cook  RV6A Rotary  Lansing MI.
>

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Possible it may be going open (thermocouple sensors are normally a shorted =
junction) but also possible you are picking up noise on the leads from some=
 source.=A0 These are millivolt level signals so it doesn&#39;t take much n=
oise to make a wild reading.=A0 Keep leads away from high tension wires (sp=
ark plug leads)=A0 and lines with a lot of switching current (injector, ign=
ition coil power, etc).<br>
<br>Tracy<br><br><div class=3D"gmail_quote">On Wed, Jun 6, 2012 at 11:01 PM=
,  <span dir=3D"ltr">&lt;<a href=3D"mailto:hoursaway1@comcast.net" target=
=3D"_blank">hoursaway1@comcast.net</a>&gt;</span> wrote:<br><blockquote cla=
ss=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;pa=
dding-left:1ex">
<div><div style=3D"font-size:12pt;font-family:Arial"><p>Info needed about E=
GT sensors, on my RWS EM2 #2 EGT about every 10 seconds will come up as 400=
0 deg. F. or so.=A0 Is the sensor going open or shorted intermittently.=A0 =
Have not checked it yet, just removed break-in oil after 24 hrs. run time &=
amp; went with 20w50w full synthetic, getting ready for first flight ( got =
delayed last year by coolant &amp; oil temp readings in-op., solved=A0&amp;=
 my youngest daughter grad. EMU,=A0Meagan &amp;=A0Cody moved to Bloomington=
 Illinois for Cody&#39;s new job, with dad as one of the movers ).=A0=A0=A0=
 David R. Cook=A0 RV6A Rotary=A0 Lansing MI.=A0</p>
</div></div></blockquote></div><br>

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