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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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