Mailing List flyrotary@lancaironline.net Message #67220
From: Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: RX-8 oil filter
Date: Sun, 17 Apr 2022 10:30:40 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Caught my attention, too. Did some digging, & found the attached from Steve Boese at our rotary gathering back in 2017, & that triggered the faded memory of how I did the same mod that Finn did (rotating the filter mount 180 degrees). IIRC, I machined the adapter block to allow the oil to feed the secondary bypass regulator at the same time it feeds the filter, as shown in the diagram. IIRC, it was done by routing a path in the bottom of the adapter, connecting the two oil passages that appear on the mounting surface on top  of the rear iron (flywheel end).

Charlie


On 4/17/2022 9:47 AM, Finn Lassen finn.lassen@verizon.net wrote:
Thanks Andrew,

Hadn't thought of that. Now I need to find out what I've done.

I have the standard base mounted on a 3/4" thick adapter plate with the base rotated 180 deg, so top of filter pointed down rather than up.

So I think I have all the oil flowing through the filter :(

Recommendation for a bigger filter that will fit the base?

Finn

On 4/17/2022 9:49 AM, Andrew Martin andrew@martinag.com.au wrote:

Finn. The little filters work fine as long as you have not modified the oil flowpath from the original design.  Most of the pump output bypasses the filter and goes straight back to the sump via the relief valve. It is a smart design in that all pump output goes through the heat exchanger for cooling capacity but only the oil required by the oil gallery is filtered. Some users do modify their system to filter all the pump output, but this requires a much bigger filter and is kind of overkill.
Andrew





On Sun, 17 Apr 2022 at 06:19, Finn Lassen finn.lassen@verizon.net <flyrotary@lancaironline.net> wrote:
Being convinced it's time to change the oil. EM3 reports 60 hours+, but
probably 10-20 hours before that.

Picked up a K&N SO1008 oil filter at Walmart. Looks so tiny.

How come the Renesis can get away with such a tiny filter?

Anyone know the filter number for a filter with same base but longer?

Finn


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