Mailing List flyrotary@lancaironline.net Message #9379
From: Dean Head <banana@atlantic.net>
Subject: RE: [FlyRotary] Re: remote oil adapter
Date: Fri, 2 Jul 2004 14:00:40 -0400
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>

Al,

Every time I see a picture of your installation I drool. It is a work of art. It is an inspiration.

Dean Head

Cozy #1040

BKV FL

 

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen
Sent: Friday, July 02, 2004 12:49 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: remote oil adapter

 

Subject: [FlyRotary] remote oil adapter

 

I bought this remote oil filter adapter from someone on this list.  I am about to mount it and I'll be damned if I can figure out how this is the same configuration.  all 5 holes on the adapter are common to one another inside, whereas on the original bracket the oil has to pass thru the oil filter membrane in order to reach the other outlet.  it seems to me that with this adapter the oil can easily bypass any filter.  what point am I missing?  which holes go to the remote filter?  which way does the oil pass thru this bracket?  is all the oil filtered all the time?  if not, what are the two circuits?

Kevin Lane  Portland, OR
e-mail-> n3773@comcast.net
web-> http://home.comcast.net/~n3773

Gee; Kevin, thanks a lot.  How could you forget where such a beautiful piece of work came from?

 

It is not an oil filter adapter, it is a filter bypass block; which means that it replaces the filter attachment block on the engine so you came put an adapter and larger filter somewhere upstream.  It is good to put the filter upstream from the cooler to reduce possible sludge buildup in the cooler (assuming we should be so lucky to fly our planes long enough for this to happen).  I got a remote dual filter mount from Racing Beat, but Earl’s sells the same thing.  It comes in either dual or single filter.

 

The bypass block mounts onto the engine in the same manner that the filter block does.  Use the two o-rings in the counterbores on the block.  Two ports go down into the engine; one goes to the oil gallery, the other to the oil pressure control valve bypass and back to the pan.  In the original filter block only the oil going through the filter goes to the gallery, while some bypasses the filter and goes through the pressure control bypass.  In the bypass block those two ports are common, as they should be.  The large port at the front with the fitting is for the incoming oil, the 1/8 NPT ports at the opposite end and at the top are for redrive supply or oil temp or pressure senders.

 

In the attached photo you’ll see the oil line coming from the engine to the filter mount on the firewall, from there to the cooler, from the cooler the bypass block on the engine.  (This happens to be a pusher configuration.)

 

Have fun,

 

Al

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