Mailing List lml@lancaironline.net Message #39778
From: Mark Ravinski <mjrav@comcast.net>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Fuel Delivery
Date: Thu, 01 Feb 2007 20:03:10 -0500
To: <lml>
Scott,
Sometime, put a bucket under your gascolator, open the drain and time for a minute.  See how many gallons you get. (GPM gravity feed) 
I'll bet you're sucking fuel out of your tanks anytime you have more throttle in than say- low cruise.
 
Mark Ravinski
N360KB  1398 hrs ( almost all of it sucking fuel)
----- Original Message -----
 
 
In other words, the engine pump can draw fuel from below itself - like out of very low wings.  Hmmmmm... I wonder.  If the pump is actually sucking on the fuel line does that lower fluid pressure allow it to vaporize more easily?  Especially, can this occur if the path to the pump or the pump itself is heated somewhat?  Does this set up pump cavitation?  Certainly a boost pump could maintain a positive pressure at the engine pump inlet. 
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