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I have found that a better alternative to a simple orifice (in most applications) is a larger hole with a section of piano wire in the middle of it. The annulus formed is much less prone to clogging than a single hole. You put the piano wire through and then bend a sharp 90 in both ends to keep it in place. This is the way they construct the damping orifice on high-end laboratory pressure gages.
Bill Dube'
Ben Schneider wrote:
Group...
I am installing my fuel system on my Renesis right now. I seem to remember (correct me if I am wrong) that the consensus was to use a .020 orfice bypass of the regulator to bleed off the pressure in the event of pump prime loss.
My question is, how exactly are some of you going about this? Are you welding an AN fitting shut, then drilling it out to .020? Is there something of this nature commercially available? Suggestions? I have only to run the fuel lines, then wire the engine, a few other little misc. items, and I should be ready for first engine start.
Ben Schneider N713R RV7 Renesis
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