Mailing List flyrotary@lancaironline.net Message #13122
From: Charlie England <ceengland@bellsouth.net>
Subject: Re: [FlyRotary] Re: Bubbles in fuel line from pump - update
Date: Tue, 23 Nov 2004 15:27:12 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Actually, you do have a vacuum pump. Plug your tank vent & run the fuel pump in short bursts. Watch the tank skins closely for cupping between the ribs & watch the fuel line for bubbles. Try smearing the potential leak points on the valve with heavy grease & see if it makes a difference.

Charlie
(helping Finn avoid spending money)


Finn Lassen wrote:

No, I wish I did have a vacuum pump. But I can make do with what I've got.

Finn

Russell Duffy wrote:

Plan for tomorrow:
Replace line from tank to valve (inspect fuel tank pickup at the same
time) and test.
If no joy, figure out a way to eliminate selector valve (I'm not too
happy at the prospect of not having a fuel shutoff valve, not even for a
bried test flight).

Finn

Sounds like Marvin may be onto something with the selector valve idea.  Do you have one of those hand pump type vacuum testers (mighty-vac or similar)?  If so, how about using it to test the line at various points for leaks.  Good luck,
Rusty (no bubbles that I know of, but then my lines are aluminum)







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