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From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [FlyRotary] Bubbles in fuel line from pump
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
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Date: Mon, 22 Nov 2004 08:17:32 -0500
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Finn,

Awhile back some of the Lancair guys were experiencing similar issues.  The 
problem was ultimately traced back to the fuel selector valve.  In these 
instances it was found that with the fuel pumps downstream of the selector 
that air was being sucked past its internal seals and showing up in the fuel 
line.  When the pumps were moved to a position between the tanks and the fuel 
selector, causing the fuel to be pushed through the it rather than sucked 
through it, the problem went away.  FWIW.

   <Marv>



Posted for Finn Lassen <finn.lassen@verizon.net>:

  I'm near wit's end trying to find out why I get bubbles in the line from my
facet pump to my carburators.