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They arent the Earls filters but they are a similar type filter. I cant remember where I got them. The 300 GPH probably came from the marketing department rather than engineering. I have not tested them myself. As of this point they seem to do the job and I havent noted any fuel flow issues at max power.
What brand of filter are you using now? do they have -6 fittings or hose barbs?
I flushed out all the hoses after assembly and then blem them out with compressed air. Anyone else using Earls hoses and if so, any problems with ethanol?
I see Earls has a new teflon lined kevlar jacketed hose that is considerably lighter than their standard hose and more flexible as well. Pricey though!
Mike Wills
RV-4 N144MW
----- Original Message ----- From: "John Slade" <sladerj@sbcglobal.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, February 27, 2009 8:41 AM
Subject: [FlyRotary] Re: ethanol
>I use filters between the tank and pumps that have a sintered bronze
element.
Mike, are these the small blue circular Earls filters?
I had problems with these. I would regularly get fuel starvation / low mixture at high throttle settings. I finally traced the problem to the the sintered bronze elements that looked clean but were, in fact, partially blocked by invisible tiny particles. I replace the bronze elements with stainless mesh filters and had no more problems.
John
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