X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost04.isp.att.net ([207.115.11.54] verified) by logan.com (CommuniGate Pro SMTP 5.3.10) with ESMTP id 4597810 for flyrotary@lancaironline.net; Tue, 30 Nov 2010 19:36:48 -0500 Received-SPF: none receiver=logan.com; client-ip=207.115.11.54; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-85-148-241.mco.bellsouth.net[98.85.148.241]) by isp.att.net (frfwmhc04) with SMTP id <20101201003611H0400oc634e>; Wed, 1 Dec 2010 00:36:12 +0000 X-Originating-IP: [98.85.148.241] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Help - O2 sensor removal Date: Tue, 30 Nov 2010 19:36:15 -0500 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001E_01CB90C5.DB138E00" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcuQ34Qvbr2+UHwkT26degI0a0T7MQAD7i2A X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_001E_01CB90C5.DB138E00 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Al, The best penetrating oil as discussed previously on the list is ATF mixed 50/50 with acetone. Apply this and while it soaks, put ice on the O2 sensor, then heat the exhaust with a torch. Cut the wire off the O2 sensor and use a long impact socket and driver to remove the sensor. Next time use antiseize on the threads. Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen Sent: Tuesday, November 30, 2010 5:40 PM To: Rotary motors in aircraft Subject: [FlyRotary] Help - O2 sensor removal After about 130 hrs my O2 sensor seemed to be getting a little sluggish; so I decided to replace it. I put a wrench on it and unable to budge it. A bigger wrench and still no luck - getting worried about cracking the weld around the bung, or some other damage. Any ideas about getting that thing loose? I didn't put anything on the threads when I put it in - perhaps next time; but what? ------=_NextPart_000_001E_01CB90C5.DB138E00 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Al,

The best penetrating oil as = discussed previously on the list is ATF mixed 50/50 with = acetone.

 

Apply this and while it soaks, put ice on the O2 = sensor, then heat the exhaust with a torch.

Cut the wire off the O2 sensor and use a long impact = socket and driver to remove the sensor.  Next time use antiseize on the = threads.

 

Bill B

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al = Gietzen
Sent: Tuesday, November = 30, 2010 5:40 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Help = - O2 sensor removal

 

After about 130 hrs my O2 sensor seemed to be = getting a little sluggish; so I decided to replace it. I put a wrench on it and = unable to budge it.  A bigger wrench and still no luck – getting = worried about cracking the weld around the bung, or some other damage.  Any ideas = about getting that thing loose?

 

I didn’t put anything on the threads when I = put it in – perhaps next time; but what?

 

 

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