Mailing List lml@lancaironline.net Message #34845
From: Mark Ravinski <mjrav@comcast.net>
Sender: <marv@lancaironline.net>
Subject: Re: Boost pump location
Date: Wed, 08 Mar 2006 00:55:44 -0500
To: <lml@lancaironline.net>
A while ago I reworked my fuel system in the course of chasing a non-related engine problem.
One test I did was to measure the gravity fuel flow rate at the gascolator.  With the gascolator valve open, fuel would drain from the header tank at about 5 gal per hour.  Now, this is only 1/4 of the full throttle fuel flow and makes it obvious that wherever the first pump in the system is - it has to suck fuel from the tank.
I elected to mount the boost pump as close to the shutoff valve as I could and it is at the top of the passenger foot well.
Now it works fine for pumping fuel but it makes about as much noise as the engine while on the ground.
I find that I'm always reaching for the switch to kill the noise when halfway through rollout.
Low, and forward of the firewall is probably a better spot.
 
Mark Ravinski
N360KB  1365 hrs.
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