X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-pb0-f52.google.com ([209.85.160.52] verified) by logan.com (CommuniGate Pro SMTP 6.0c1) with ESMTPS id 5718879 for flyrotary@lancaironline.net; Sun, 19 Aug 2012 20:49:07 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.160.52; envelope-from=msteitle@gmail.com Received: by pbcxa7 with SMTP id xa7so5817959pbc.25 for ; Sun, 19 Aug 2012 17:48:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=ruzZzfWc9sT2NC76PlqrHJz+tPrtFCol4Lz0KKxYC4M=; b=aCULDNCakdiQnSMpGbBotMWw3C3kkoGb/biBq+MiIu+jznzSDiBmmIkPg4/UdzHFjP 8mY6YSqi7KoyINvwjLFG1K+l+u0O5sm4PHXSzkYaW5534LKC/6awRcZngdJWTCVkuuHF 4astpHTQyjcuTIZyxSwAKjM8yTKlwAWQGg/cWWsM8InnBGWR+YGrk8T/Y0w68imCuqUo e/tPE9h5SHs+5HKbNr1UUE+Ete+uVl24U/v7zSX20bwLe3jS6BcOPVqafbU5iiiLdsm6 oCotTmRuAEpNoielhLeqoqc6n/gS/AtqMfrPr4WKAZzHPO/4lNmeqRJ9fApyrq7/u+9b 9CwQ== MIME-Version: 1.0 Received: by 10.68.217.100 with SMTP id ox4mr29962507pbc.87.1345423711810; Sun, 19 Aug 2012 17:48:31 -0700 (PDT) Received: by 10.66.235.133 with HTTP; Sun, 19 Aug 2012 17:48:31 -0700 (PDT) In-Reply-To: References: Date: Sun, 19 Aug 2012 19:48:31 -0500 Message-ID: Subject: Re: [FlyRotary] Re: EM2 CHT ? From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=e89a8ff245df6a351d04c7a7de7f --e89a8ff245df6a351d04c7a7de7f Content-Type: text/plain; charset=ISO-8859-1 Seems that this will tell you the coolant temp near the plugs, but not the CHT. If you want to measure the CHT, you'll need to locate a thermo-couple down near the steel liner. You can do this by drilling a small hole down into the web adjacent to the leading plug, stopping at the steel liner. Then insert a thermo-couple down into the hole so that it is touching the steel liner. Now you're reading the temps nearest the combustion chamber, closest thing we have to CHT. Mark On Sun, Aug 19, 2012 at 10:02 AM, wrote: > Sounds like a plan to me Ed, should have time Sun. to do. David > > ------------------------------ > *From: *"Ed Anderson" > *To: *"Rotary motors in aircraft" > *Sent: *Saturday, August 18, 2012 6:54:35 AM > *Subject: *[FlyRotary] Re: EM2 CHT ? > > I think I would run the engine at operational rpms (>5000) and watch the > coolant/oil temperatures - when they got to my maximum limit, I would check > the CHT reading and perhaps add 50 degrees for the limit (to start with). > If I got a lot of false alarms at that margin I would try another 50 deg. > Just a WAG. > > Ed > > *From:* hoursaway1@comcast.net > *Sent:* Friday, August 17, 2012 10:20 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] EM2 CHT ? > > What are we using for high temp numbers from the CHT sensors on the 13B > rotary, I have the under the spark plug style sensors bolted to each rotor > housing in some factory threaded holes just above the spark plugs, not > really the hottest spot but the holes were already in place so I KISSed it > & moved on, now I need to set my high temp warning limit & do not know what > to use. Possibly do an eng. run with upper cowl off & check bolt/sensor > temp with a lazer temp gun at about 4000 RPM & go another 50 deg. higher? > Ideas? David R. Cook RV6A Rotary > > > > > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.2197 / Virus Database: 2437/5206 - Release Date: 08/17/12 > --e89a8ff245df6a351d04c7a7de7f Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Seems that this will tell you the coolant temp near the plugs, but not the = CHT. =A0If you want to measure the CHT, you'll need to locate a thermo-= couple down near the steel liner. =A0You can do this by drilling a small ho= le down into the web adjacent to the leading plug, stopping at the steel li= ner. =A0Then insert a thermo-couple down into the hole so that it is touchi= ng the steel liner. =A0Now you're reading the temps nearest the combust= ion chamber, closest thing we have to CHT.

Mark =A0=A0

On Sun, Aug 19= , 2012 at 10:02 AM, <hoursaway1@comcast.net> wrote:
Sounds like a plan to = me Ed, should have time Sun. to do.=A0 David

From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Saturday, August 18, 2012 6:54:35 AM
Subject: [FlyRo= tary] Re: EM2 =A0CHT ?

I think I would run the engine at operational rpm= s (>5000) and watch the coolant/oil temperatures - when they got to my m= aximum limit, I would check the CHT reading and perhaps add 50 degrees for = the limit (to start with).=A0 If I got a lot of false alarms at that margin= I would try another 50 deg.=A0 Just a WAG.
=A0
Ed

Sent: Friday, August 17, 2012 10:20 PM
Subject: [FlyRotary] EM2 CHT ?

What are we using for high temp numbers from the CHT sensors on the 13B = rotary, I have the under the spark plug style sensors bolted to each rotor = housing in some factory threaded holes just above the spark plugs, not real= ly the hottest spot but the holes were already in place so I KISSed it &= ; moved on, now I need to set my high temp warning limit & do not know = what to use.=A0 Possibly do an eng. run with=A0upper cowl off & check b= olt/sensor temp with a lazer temp gun at about 4000 RPM=A0 & go another= 50 deg. higher?=A0 Ideas?=A0 David R. Cook=A0 RV6A Rotary=A0

=A0

=A0

No virus found in this message.
Checked by AVG - www.avg.com
Version: 20= 12.0.2197 / Virus Database: 2437/5206 - Release Date: 08/17/12


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