Mailing List flyrotary@lancaironline.net Message #57712
From: Richard Sohn <res12@fairpoint.net>
Subject: Re: [FlyRotary] Re: OMP Plumbing
Date: Sun, 8 Apr 2012 00:04:31 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Yes Mark, that would be the right place.
 
Richard Sohn
N2071U

http://www.fairpoint.net/~res12/home.html
 
Sent: Saturday, April 07, 2012 10:09 PM
Subject: [FlyRotary] Re: OMP Plumbing
 
Richard, 
 
Thanks for the great information.  That supports what instinct was telling me.  So, anywhere upstream of the butterfly should work?  I'm running three 1-barrel throttle-bodies on my p-port 3-rotor.  If I understand you, I should hook the check valve for each rotor upstream of the respective TB butterfly, correct?
 
Mark

On Sat, Apr 7, 2012 at 9:54 PM, Richard Sohn <res12@fairpoint.net> wrote:
Mark,
 
you need the injection check valves hooked up to your intake plenum. The oil intake only works with the pressure difference between the combustion chamber and the plenum during the intake cycle. The check valve prevents oil from being pushed into the vacuum lines by reverse pressure fluctuations.
As far as the control lever is concerned, you have a good plan. You may want to make the lever position adjustable so you can set the oil consumption to a level that makes you and the engine feel good.
FWIW
 
 
Sent: Saturday, April 07, 2012 8:10 PM
Subject: [FlyRotary] OMP Plumbing
 
Is anyone running an oil metering pump (OMP) that can help me figure out how the lines should be connected.  I'm planning on using the Mazda banjo fittings to hook up to the OMP, but what do I do with the check valves.  Do you connect the check valves to a vacuum source or just block them off?  Will the system work properly if I plug the check valves?  I plan on locking the lever in the full open position.  Will this work for a/c use?  I'll be using Richard Sohn's adapter with a 1 gallon reservoir filled with 2-stroke oil.   
 
Mark S.
 
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