Mailing List flyrotary@lancaironline.net Message #30730
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: sag solution ??
Date: Tue, 14 Mar 2006 11:24:24 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Yes, Paul "experiments" sometimes leaves me puzzled as well.
 
  But, no I have not tried iridium plugs.  My analysis indicates that its formation of lead deposit on the ceramic  cone leading to "flash over" as the spark pulse starts to ramp up to discharge levels.  The plugs are not worn.    I understand that CD type ignition systems frequently do well in combating fouling as the pulse rise is so fast as to reach levels to jump the gap before sufficient potential is leaked off.  But, not inclined to go to that type of system for SAG.  Besides, I have not yet tried the hydrogen peroxide and vinegar yet {:>)
 
Ed
 
 
----- Original Message -----
From: Al Gietzen
Sent: Tuesday, March 14, 2006 10:19 AM
Subject: [FlyRotary] Re: sag solution ??

Jesse, as best I recall, Tracy Crook has always mixed Mystery Oil with his gasoline.  Perhaps that is why he gets such a long run on plugs rather than just his use of auto gas.  Interesting indeed, would sure beat trying to replace/clean plugs every 20 hours using AvGAs.

 

Ran into SAG on way home from Texas, so going to replace the plugs this week.  I think I'll get some MMO and mix it in the gasoline and see if it makes any different in the TBR I get on plugs.

 

Ed

 

PL’s opinion – FWIW.  If Tracy has been adding it he would know.  I don’t see that baking it at 500F in a cat food can translates to running it through a rotary mixed with the gas.  

Have you tried iridium plugs?     Al

 

If you use it in the fuel it breaks down and leaves a lot of crud on the rotor.

 

Put a tea spoon worth in a small cat food can and bake it in the oven for one half hour at 500F. Do the same with 2 cycle oil and see the difference.

 

For sag try the iridium plugs used in the RX8 engine.

 

Paul Lamar

 

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