X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost02.isp.att.net ([204.127.217.102] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2550922 for flyrotary@lancaironline.net; Sat, 01 Dec 2007 12:38:42 -0500 Received-SPF: pass receiver=logan.com; client-ip=204.127.217.102; envelope-from=bbradburry@bellsouth.net Received: from arptk8ng400 (adsl-146-126-12.mco.bellsouth.net[72.146.126.12]) by isp.att.net (frfwmhc02) with SMTP id <20071201173804H0200apk8ce>; Sat, 1 Dec 2007 17:38:04 +0000 X-Originating-IP: [72.146.126.12] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: Need some advise.. Date: Sat, 1 Dec 2007 12:38:03 -0500 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0036_01C83417.04C3EBA0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: Acg0PDyi0T94sLggR7iEk+7D4epBlAAA4aSA X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16545 This is a multi-part message in MIME format. ------=_NextPart_000_0036_01C83417.04C3EBA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I just removed my exhaust to have some welding done on it. When I replaced it, I added some anti-seize compound on the two EGT thermocouples and also the O2 sensor boss. When I started the engine, the O2 sensor worked for a few minutes, then stopped working. I assume that it did not like the anti-seize compound??? My question is.will it come back after a while? If I need to replace the O2 sensor, should I try and remove all the compound from the thermocouples as well? (they are ahead of the O2 sensor) Should I run the engine for a while after I remove the compound to try and burn it out of the pipe or should I clean out the pipe? How bad is my situation? What to do..What to do??? Thanks for the help! Bill B ------=_NextPart_000_0036_01C83417.04C3EBA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

I just removed my exhaust to have some welding done on it.  = When I replaced it, I added some anti-seize compound on the two EGT = thermocouples and also the O2 sensor boss.

When I started the engine, the O2 sensor worked for a few = minutes, then stopped working.  I assume that it did not like the anti-seize = compound???

My question is…will it come back after a while?  If I = need to replace the O2 sensor, should I try and remove all the compound from = the thermocouples as well? (they are ahead of the O2 sensor)  Should I = run the engine for a while after I remove the compound to try and burn it out of = the pipe or should I clean out the pipe?

 

How bad is my situation?  What to do….What to = do???

 

Thanks for the help!

 

Bill B 

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