X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-iw0-f173.google.com ([209.85.223.173] verified) by logan.com (CommuniGate Pro SMTP 5.3.5) with ESMTP id 4218669 for flyrotary@lancaironline.net; Mon, 12 Apr 2010 12:38:57 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.223.173; envelope-from=msteitle@gmail.com Received: by iwn3 with SMTP id 3so987239iwn.3 for ; Mon, 12 Apr 2010 09:38:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:received:message-id:subject:from:to:content-type; bh=rr2od3gtb6S6rAOWdYOJqHy93S0cm11v5V7u+qiy0MQ=; b=lzVHlBq2LfweU+zF5Zolo0k2Zxf/FCkr8ANs+NQe5OTgg45kJSTYCi/M6/8v8P6/88 G81LAq8GJH+xN6K8uSQ9GbHm60tQNQ0AN9OVsFYoI7/E0lCfbTQu3w5DH7Wyze9o1vWp dWRz3sBifOKyqXIUEcAXgaXwgMEuYrg0plgmE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=teB9LRpbnuFE04t/TqAqM4rSPTVvUgy9lsaQHJwdxaCFNPV6zu+v1O7EFKTZAAuFVv vrbCVpUePcsr1OG2fIVfLbQrzKTpGNQ/TFJ1Lde0CPbLP6SxRLwRAssYg3eo7tHS/RTb cHi/Rb3WkYEUMXEDkeYQTjJj+C3VJyHaY8/vY= MIME-Version: 1.0 Received: by 10.231.183.195 with HTTP; Mon, 12 Apr 2010 09:38:20 -0700 (PDT) In-Reply-To: References: Date: Mon, 12 Apr 2010 11:38:20 -0500 Received: by 10.231.174.142 with SMTP id t14mr1557921ibz.69.1271090300771; Mon, 12 Apr 2010 09:38:20 -0700 (PDT) Message-ID: Subject: Re: [FlyRotary] Re: Fuel Pressure sensor warning From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0016363b8b40dae04304840cc505 --0016363b8b40dae04304840cc505 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Well then, either you're very lucky, or VDO changed materials for their sensors. Mark On Mon, Apr 12, 2010 at 9:52 AM, Al Gietzen wrote: > > > Could the difference be that Tracy runs mo-gas which most likely contains > ethanol? > > Mark S. > > > > I have run mogas more than 95% of the total hours. > > > > Al > > On Mon, Apr 12, 2010 at 12:05 AM, Al Gietzen wrote: > > *SO, I can no longer recommend using the VDO pressure sensors for use on > fuel systems.* Either an isolator must be used or a sensor rated for fue= l > exposure be installed. I've been using one on my -4 for >7 years with no > problems. About 3 years ago VDO started putting a sticker in the pressu= re > sensor package saying not to use them on fuel pressure applications. I > suspect they changed something in the manufacturing process. > > > > I=92ve had my VDO pressure sensor in service on the fuel system since fir= st > engine run in Jan, 2004. Still doing fine. Must be they changed somethi= ng > after that. > > > > Al G > > > --0016363b8b40dae04304840cc505 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
Well then, either you're very lucky, or VDO changed materials for = their sensors.=A0
=A0
Mark

On Mon, Apr 12, 2010 at 9:52 AM, Al Gietzen <ALVentures@cox.net<= /a>> wrote:

=A0

Could the difference be = that Tracy runs mo-gas which most likely contains ethanol?=A0=

=A0Mark S.=

=A0<= /font>

I have run = mogas more than 95% of the total hours.

=A0<= /font>

Al

On Mon, Ap= r 12, 2010 at 12:05 AM, Al Gietzen <ALVentures@cox.net> wrote:

SO,=A0 I can no longer = recommend using the VDO pressure sensors for use on fuel systems.=A0 Either an isolator must be used or a sensor rated for fuel expo= sure be installed.=A0 I've been using one on my -4 for >7 years with= no problems. =A0 About 3 years ago VDO started putting a sticker in the pr= essure sensor package saying not to use them on fuel pressure applications.= =A0 I suspect they changed something in the manufacturing process.=A0

=A0

I=92ve had my VDO pressure sensor in service on the fuel = system since first engine run in Jan, 2004.=A0 Still doing fine. =A0Must be= they changed something after that.

=A0

Al G

=A0


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