Mailing List lml@lancaironline.net Message #50777
From: <Sky2high@aol.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Fuel selector Valve question
Date: Sun, 22 Mar 2009 16:13:36 -0400
To: <lml@lancaironline.net>
Bryan,
 
Why?
 
If you connect the wings thru a simple T, unbalanced pressurization, mismanaged filling or a tilted ramp will cause the fuel to move from one wing to the other with unintended consequences.
 
A standard built 320 fuel system does not have slosh compartments with flapper doors built into the wings.  Thus, a wing with a low fuel quantity could easily be un-ported and allow air to be introduced into the fuel lines.  I think you know the result of that happening.
 
Good Luck,
 
Scott Krueger AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)

Pilot not TSO'd, Certificated score only > 70%.
 
In a message dated 3/20/2009 10:43:51 A.M. Central Daylight Time, vonjet@gmail.com writes:
I want to run this idea I have past the group.

My current set-up is 1/4" lines coming from my wing tanks to the my header.  Then a 3/8" line feeds my engine.  In this configuration I can only feed the engine from Header only. This is the stock Lancair 320 fuel system.

I would like to be able to run my engine off my wing tanks if needed but I don't want to re-plumb the wings with 3/8" lines.  Can I connect the 1/4" wing tank lines into a "T" with a 3/8" exit and run the line to the selector valve?  Essentially the wings would not be able to be selected but they would feed at the same time equally. 
Would this idea work?  And if so what type of Andair valve would I need?  One with just a Left/Right/OFF  And I would have them custom engrave the bezel to read Wings/Header/OFF

Thanks
Bryan
 


A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster