Return-Path: Received: from fed1rmmtao12.cox.net ([68.230.241.27] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 384643 for flyrotary@lancaironline.net; Mon, 30 Aug 2004 10:40:09 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.27; envelope-from=ALVentures@cox.net Received: from BigAl ([68.107.116.221]) by fed1rmmtao12.cox.net (InterMail vM.6.01.03.02.01 201-2131-111-104-103-20040709) with ESMTP id <20040830143934.ZSRV23684.fed1rmmtao12.cox.net@BigAl> for ; Mon, 30 Aug 2004 10:39:34 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: O2 sensor Date: Mon, 30 Aug 2004 07:39:49 -0700 Message-ID: <000501c48e9f$33f89590$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01C48E64.8799BD90" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C48E64.8799BD90 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 Tried to check the O2 sensor output using a flame from a propane torch. Nothing. I'll probably try again to get a voltage reading at the sensor when I can run again. It still gives close to full scale reading no = matter what mixture setting. Oops. Still getting to know the EM2 display. I guess I was looking at = the fuel pressure bar thinking it was the mixture bar; which means I was = getting no (zero) reading on the mixture because there was no bar there. At = least that's consistent with the reading I got on the voltmeter. =20 Al, It takes a while for the O2 sensor to put out a reliable reading. I = don't get a stable reading on mine until about 1-1/2 to 2 minutes. You will probably get some sort of reading after a few seconds, but I wouldn't = put much faith in its' accuracy. Mine shows a very, very lean mixture while warming up. =20 Regards, Steve =20 I'm using a heated sensor which should give readings very quickly. I = have relocated the O2 bung, and have a Bosch 11027 unheated sensor (Thanks = Dave) to give that a try when I get up and running again. =20 Al ------=_NextPart_000_0006_01C48E64.8799BD90 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

Tried to check the O2 sensor output using a flame from a propane torch.  Nothing.  I’ll probably try again to get a voltage reading at = the sensor when I can run again.  It still gives close to full scale = reading no matter what mixture setting.

Oops.  Still getting to know = the EM2 display.  I guess I was looking at the fuel pressure bar thinking = it was the mixture bar; which means I was getting no (zero) reading on the = mixture because there was no bar there.  At least that’s consistent = with the reading I got on the voltmeter.

 

Al,

It = takes a while for the O2 sensor to put out a reliable reading.  I don’t get = a stable reading on mine until about 1-1/2 to 2 minutes.  You will = probably get some sort of reading after a few seconds, but I wouldn’t put = much faith in its’ accuracy.  Mine shows a very, very lean mixture = while warming up.

 

Regards,

Steve

 <= /font>

I’m using a heated sensor = which should give readings very quickly.  I have relocated the O2 bung, = and have a Bosch 11027 unheated sensor (Thanks Dave) to give that a try when I = get up and running again.

 

Al

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