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Old 09-18-2017, 07:05 AM
Jeff Hagg Jeff Hagg is offline
Join Date: Mar 2011
Location: Indpls. IN
Posts: 35

I install one filter in each wing root on my SRV8 it does two things one it filters, two it protects you selector valve from contaminates. I got this selector valve info from the manufacture that said they received may returned valves with metal chip and cut o-rings.
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Old 09-20-2017, 03:44 PM
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Bubblehead Bubblehead is offline
Join Date: Jul 2007
Location: Keller, TX
Posts: 1,526

I installed one in each root per Danny King's methods because I was fighting getting small chips of something in injectors. I would sump well and bought gas at a busy airport but still it happened more often than I was comfortable with. At condition inspection time I burn the fuel down to about 5 gallons per side and use the electric fuel pump to pump out the rest of the gas. That way when I remove the wing root filters for cleaning I get very little gas spilled. They are (I think) 40 micro filters so significantly tighter mesh than the AFP filter. This condition inspection I got some fuzz from both sides, but nothing in my main filter or the small filter in the FI servo body. Since putting the two root filters in I've not had any injector problems.

To each their own, YMMV, etc.
RV-8 180 hp IO-360 N247TD with 10" SkyView!

VAF Donation Made 7/2017
"Cum omni alio deficiente, ludere mortuis."
(When all else fails, play dead.)
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Old 09-20-2017, 05:32 PM
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Steve Melton Steve Melton is offline
Join Date: Apr 2011
Location: Cincinnati, OH
Posts: 1,664

I have one large filter (78 micron) between the fuel selector and pump. I have never found anything significant in it but that doesn't mean I never will. In my opinion, two filters at the wings are better than one after the fuel selector if you check them regularly and worse if you don't.
Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 600+ for all

Simplicity is the art in design.

see Amanda Melton for

Last edited by Steve Melton : 09-20-2017 at 05:42 PM.
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