Sege Vidal said; Well, the Facet seems to bring quite a flow restriction. Moreover, that restriction is not consistent. It depends on where the pump mechanism sits when you switch off. So, my 2.4 liter won't work at full RPM without the pump on.
Thanks, Serge... I've been following all the reports of people who said their aircraft ran OK with the FACET pump off. Based on my measurements for flow restriction, this couldn't be possible with the two units I have. My plan was to use a pump with the Ellison Carb, which I've sold on the way to "piecing out " the project. The answer is to bypass the pump with a low restriction check valve. Aircraft Spruce p/n 10630. I bought one, and it's a nice job. Since Serge's clue reminded me of the problem, I'll put mine on eBay so one of you can have it. ;o) BTW, you should all at least read to A/S description of the part. I think the right solution is to feed a header tank, if your carb allows gravity feed, and the have a float that runs the pumps to keep it filled and a warning light if the level drops and /or the pump runs for a long time. Ron Freiberger mailto: rfreiber...@swfla.rr.com