Mailing List flyrotary@lancaironline.net Message #53505
From: Steven W. Boese <SBoese@uwyo.edu>
Subject: RE: [FlyRotary] Re: GM Coil Comparison
Date: Wed, 5 Jan 2011 15:32:23 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Dennis,

 

I have not had a random misfire in steady state cruise that I ever noticed.  This has been the case with the stock Mazda coils and the D585 coils.  I’m usually running about 19-20” MAP.

 

Steve Boese

 

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dennis Havarlah
Sent: Wednesday, January 05, 2011 1:33 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: GM Coil Comparison

 

Steve

 

On run-up I get about 50 rpm change from both to leading or trailing.  I normally do the check at about 3200 rpm. 

 

Now that you mention it, I would guess that the occasional misfire is "probably" a total misfire of one rotor face.  Don't really know though! 

 

Do you ever have a similar event?

 

Dennis H.

 

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