Mailing List flyrotary@lancaironline.net Message #1859
From: Ernest Christley <echristley@nc.rr.com>
Subject: Re: [FlyRotary] Re: air filters?
Date: Thu, 05 Jun 2003 14:47:50 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Marko Bewersdorff wrote:

          So keep those filters from collapsing.
           I was concerned about this, so I built a vacuum relief valve,
          which is an integral part of my filter box. In the unlikely
          event of a filter plug due to dirt or more likely ice, it will
          simply overcome the spring pressure and allow unfiltered air
          from inside the cowl to flow. I probably won't even know if it
          has opened.



Todd, rig a micro switch to light a LED on the panel when the spring opens.  That'll be a good indication of when the filter needs cleaning.  If the filter never clogs, that will indicate that a filter is nothing more than an unecessary airflow restriction (no clog == no dirt == why have a filter?)

--
----Because I can----
http://www.ernest.isa-geek.org/
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