Mailing List flyrotary@lancaironline.net Message #16027
From: Steve Brooks <prvt_pilot@yahoo.com>
Subject: RE: [FlyRotary] Re: oil analysis results
Date: Tue, 25 Jan 2005 18:35:14 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Has anyone else had oil analysis done on oil changed from a "normal" rotary engine ?  I wouldn't expect any more fuel infiltration on a rotary than a piston engine, but maybe there is more.  Who knows.
 
 
Steve Brooks
 
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Russell Duffy
Sent: Tuesday, January 25, 2005 3:27 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: oil analysis results

Me too.  My rough guestimate was that he was showing about 12 times more fuel polution than he should have; doesn't this make us all worry about viscosity, if that is true ?  Or, did I just misguestimate ?
jofarr 
 
As I mentioned before, I don't think you can put any stock in the fuel content showed, except that it's the only indication of a problem.  The side seals on the bad rotor are smashed into the side of the rotor, so there's NO seal at all.  When compression starts, a portion of the fuel/air mixture is pushed into the crankcase (for lack of a better term).
 
Rusty (It's hard to start a Trane)  
 
 
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