Paul,
Your reasoning sounds OK, I plan on not using one unless persuaded
differently. Will put drain cock on sump which will be the lowest tank or
catch basin in my setup. At present still want to use out of tank pumps.
Need to find a good strainer, probably an in-line one.
Wendell
Hi, Wendell....I use the gascolator for a couple
of reasons. I cannot check my aluminum sump tank. It is
sealed. Since the EFI pumps are located lower than the sump tank, it
would be more logical to check for water at the lowest point in the fuel
system. The fuel goes from the sump tank to the gascolator, which is the
lowest point in the fuel system. I like the gascolator because it has a
screen to catch debris that might have found it's way to the EFI pumps, and
the gascolator has a fuel drain on the bottom of it so that I can check
for water at the lowest point in the system. I don't think the sump
would catch the water, as the outlet from the sump is on the bottom of
the sump, and water should go right on through the sump tank to the gascolator
and EFI pumps, which are the lowest point in the fuel system. I thought
this was the best way to design a gravity fed fuel system....everything
downhill and a fuel drain at the lowest point. Please correct me if I
am in error. Paul looking for a Cessna
Conner
----- Original Message -----
Sent: Thursday, February 17, 2005 10:59
AM
Subject: [FlyRotary] Re: Vapor
Lock
Paul,
Why use a gasolator if you have a sump tank with the outlet a couple
inches off the bottom of the sump? Won't the sump tank catch the water and a
strainer stop the big stuff. The sump is checked before each flight and a
gasolator isn't. Go straight to the FP then thru a fuel filter and then the
fuel rail. Eliminates the restriction, weight and connections to leak.
I am beginning to lean towards in-tank pumps with built in
strainer since all this has come to light.
Wendell
Hi, Kelly....the efi pumps are the last item
before the fuel rail and fuel pressure regulator. Here is the basic
system... The fuel in the main tanks goes downhill to the fuel
selector. Fuel then goes downhill again through the Facet pump into the
top of the sump tank. Fuel then comes out of the bottom of the sump tank
through the gascolator into the EFI pump(s), then to the fuel rail with
fuel pressure regulator attached, then that returned fuel goes back into
the top of the sump tank. That is the complete system. Take care.
Paul Conner
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