Mailing List flyrotary@lancaironline.net Message #50854
From: Mark Steitle <msteitle@gmail.com>
Subject: Re: [FlyRotary] Re: Fuel Pressure sensor warning
Date: Mon, 12 Apr 2010 07:19:58 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Al,
 
Could the difference be that Tracy runs mo-gas which most likely contains ethanol? 
 
Mark S.

On Mon, Apr 12, 2010 at 12:05 AM, Al Gietzen <ALVentures@cox.net> 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 fuel 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 pressure sensor package saying not to use them on fuel pressure applications.   I suspect they changed something in the manufacturing process. 

 

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

 

Al G


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