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Date: Tue, 06 Dec 2005 18:53:58 -0500
From: Chad Robinson <crj@lucubration.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: fuel system issues
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al p wick wrote:
> I certainly agree. It seems reasonable to assume that the return line
> always deposits bubbles into the tank. I'm told sock is effective at
> removing them, obviously returning fuel some distance from inlet is
> valuable. I have 2 gallon header, vented. Unable to get it close to vapor
> lock. Only exception was brief moment on restart of overheated engine
> (during my test phase years ago). That was only after 5 minute heat soak.
> Pretty clear that was due to the 6" of tubing in engine compartment
> getting too hot.

Where is your header tank located?

How is the system plumbed to your tank? Do you have a fuel selector valve to 
select what feeds it, or do you gravity-drain to it?

Where does the vent for your header tank go? Does it go to a main tank, or 
directly outside?

Regards,
Chad