Mailing List flyrotary@lancaironline.net Message #53501
From: Dennis Havarlah <clouduster@austin.rr.com>
Subject: Re: [FlyRotary] Re: GM Coil Comparison
Date: Wed, 5 Jan 2011 14:32:55 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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.
----- Original Message -----
Sent: Wednesday, January 05, 2011 11:14 AM
Subject: [FlyRotary] Re: GM Coil Comparison

Dennis,

 

When you check the coils with the coil disable function on runup, is there enough of a change that you would expect to notice one plug intermittently not firing in cruise?

 

Steve Boese

 

 

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dennis Havarlah
Sent: Wednesday, January 05, 2011 10:00 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: GM Coil Comparison

 

Mark - You are not alone with your occasional intermittent misfire.  I also have the miss as you described - I only notice it in cruise.  It happens once every 15 to 30 minutes!  I wonder if it is one plug not firing instead of a complete miss of the cylinder.   I'm using the Renesis RX-8 coils and RX-8 Iridium plugs with Tracy's EC-2.  Most of the time I use mogas. 

 

Dennis H.

Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster