Mailing List flyrotary@lancaironline.net Message #42261
From: George Lendich <lendich@optusnet.com.au>
Subject: Re: [FlyRotary] Re: Oil flow rate
Date: Tue, 8 Apr 2008 08:04:16 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
 
bearings is improved as well, and that is the object of increasing the pressure. But most like the increase to show up more in the bearings than the nozzles, so restrictors are added. Not a big deal at lower RPM. They start out just about .230MM and I have mine down to .180MM with perfect results. We use Weber main fuel jets for restrictors. The balls and springs are removed. I would leave them in for airplane use as the oil pressure with this big leak is dismal at idle, as so many of the street racers find out. 
  
 Lynn,
I'm looking at using 2mm for my single rotor e-shaft, would that also be your recommendation?
 
I have the option of doing it two ways, the first is to drill a hole just past the housing bearing surface ( there's not much room), so it will have to be pretty much a straight hole rather than the angles 2 rotor nozzles.
 
The second option, and I'm not so sure it's a good idea, is to use the bearing lube hole and drill a 2mm hole in the rotor bearing through to the rotor cavity. Apparently this works well for delivering oil to cool the rotor, my concern is it starving the rotor bearing of it much needed lubricant?
George ( down under) 



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