ORIGINAL: jason
ORIGINAL: BaldEagel
not having a UAT you don't have a bubble sitting there waiting to get into the fuel line either,
Mike
How's that then? I thought the idea of a UAT was that it trapped the air and stopped bubbles getting to the engine??
Also I don't think them Orbit type filters are too good. I've had one or two and seen loads that although they look clean, over time become restrictive and actually cause fuel pump cavatation followed by flames outs.
Jason
Any air in the UAT has been introduced whilst filling, if you have air in your fuel lines after it has been purged and your clunk is submerged then your plumbing has a leak and is drawing in air.
Like any filter you need to clean them occasionally, if you have a filter clunk and fill from the UAT you are filling on the wrong side of the filter clunk, you should have an additional filling point on your main tank to fill from rather than through the UAT IMO.
I have used the Orbit clunk now for about two years without any problems on 120 size and under, but have heard of some problems with large turbines of 160 size and over, not having that size turbine I can't comment, but what I have tried is drawing fuel out of the tank with my fill station at max speed without any cavitation and the fuel was taken out down to the last few onz, it was very strange to watch fuel being drawn out of the tank from below the top of the Orbit clunk without any air in the line.
Mike