X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Received: from ms-smtp-02.southeast.rr.com ([24.25.9.101] verified) by logan.com (CommuniGate Pro SMTP 5.1.5) with ESMTP id 1789354 for flyrotary@lancaironline.net; Thu, 25 Jan 2007 07:37:43 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.101; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-100-190.carolina.res.rr.com [24.74.100.190]) by ms-smtp-02.southeast.rr.com (8.13.6/8.13.6) with SMTP id l0PCaeUM002887 for ; Thu, 25 Jan 2007 07:36:41 -0500 (EST) Message-ID: <000701c7407d$7786a170$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Exhaust flange gaskets Date: Thu, 25 Jan 2007 07:36:41 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0004_01C74053.8E538550" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0004_01C74053.8E538550 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I'm not certain, George. However, I do know that Tracy Crook has been = following Lynn's suggestion using Red Silicon (high temp stuff) for = sealing his exhaust flange and has reported no problems (after several = years) with his air/fuel indicator running off the O2 sensor.=20 It may be like the reports that a few seconds of leaded gasoline = causing O2 sensor not to work. While it does appear to adversely affect = their intended use in emission control circuitry, it has no discernable = effect in using the O2 sensor as an air/fuel ratio indicator. I get = about 150 hours on an O2 sensor using 100LL just about 100% of the time. = The O2 sensor appears to slowly lose sensitivity during the last 20 = hours or so over that period of time. FWIW Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html ----- Original Message -----=20 From: Lehanover@aol.com=20 To: Rotary motors in aircraft=20 Sent: Thursday, January 25, 2007 7:20 AM Subject: [FlyRotary] Re: Exhaust flange gaskets In a message dated 1/25/2007 2:11:11 A.M. Eastern Standard Time, = lendich@optusnet.com.au writes: Lynn, Someone told me that Silicone destroys 02 sensors - is that true? George ( down under) I don't know about that. I tune by EGT only. Lynn E. Hanover ------=_NextPart_000_0004_01C74053.8E538550 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I'm not certain, George.  However, I do know that Tracy Crook = has been=20 following  Lynn's suggestion using Red Silicon (high temp stuff) = for=20 sealing his exhaust flange and has reported no problems (after several = years)=20 with his air/fuel indicator running off the O2 sensor. 
 
 It may be like the reports that a few seconds of leaded = gasoline=20 causing O2 sensor not to work.  While it does appear to adversely = affect=20 their intended use in emission control circuitry, it has no discernable = effect=20 in using the O2 sensor as an air/fuel ratio indicator. I get about 150 = hours on=20 an O2 sensor using 100LL just about 100% of the time.  The O2 = sensor=20 appears to  slowly  lose sensitivity during the last 20 hours = or so=20 over that period of time.
 
FWIW
 
Ed
 
Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.comhttp:/= /members.cox.net/rogersda/rotary/configs.htm#N494BW
http://www.dmack.net/mazda= /index.html
----- Original Message -----
From:=20 Lehanover@aol.com
Sent: Thursday, January 25, = 2007 7:20=20 AM
Subject: [FlyRotary] Re: = Exhaust flange=20 gaskets

In a message dated 1/25/2007 2:11:11 A.M. Eastern Standard Time, = lendich@optusnet.com.au=20 writes:
Lynn,
Someone told me that Silicone destroys 02 sensors - is that = true?
George ( down under)
I don't know about that. I tune by EGT only.
 
Lynn E. Hanover
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