Received-SPF: pass
 receiver=logan.com; client-ip=64.12.137.4; envelope-from=Lehanover@aol.com
From: Lehanover@aol.com
Message-ID: <1e4.3830419d.2f7abe37@aol.com>
Date: Tue, 29 Mar 2005 09:20:39 EST
Subject: Re: [FlyRotary] Re: Oil Flow
To: flyrotary@lancaironline.net
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit

In a message dated 3/29/2005 7:17:06 AM Central Standard Time, 
mark.steitle@austin.utexas.edu writes:

<< Didn't Lynn Hanover share with us a "racer's secret" concerning this
 problem?  As I recall, he recommended holding the key in place while
 installing the gear on the oil pump by using a dab of super glue on the
 key.  After installing the gear, check that it is still there using a
 piece of safety wire.  Or, maybe I dreamed this?  
 
  
 Mark S. >>


I remember that also, but it wasn't me. I used a small ball bit to make a 
shallow depression along each side of the keyway. Then with the key installed I 
gave it a light strike with a sharp center punch. Bad idea for the shaft, and 
it is difficult to get the key out ever again. This is not for aircraft use.

It is not a big enough problem to do anything about, other than just be 
careful when assembling. Look along the shaft before installing the nut. You can 
see the key. 

I did that because I had the engines apart far more often than would be 
required for aircraft use.  

I would spin the engine to fill the oiling system. Then install the plugs and 
fire it up.

I every case, with the stock pump or the dry sump pump, oil pressure should 
be solid and holding at the relief pressure within 5 seconds or so. If you have 
a stock idle speed, (not the racing 2,200 RPM idle) it might take a few 
seconds more to show some pressure, and it might not be much, like 40 PSI or so. 
The bearings are so big that running without pressure will not hurt them at all, 
if there is no load. So a fast idle for 30 seconds is fine. Even after 
cranking without the plugs for a long time. The assembly lube is plenty for this 
activity. 

The dry sump pump produces 85 PSI at idle and holds at 100 PSI from just off 
idle through 9,600 RPM. 

Lynn E. Hanover