flyrotary@lancaironline.net Mailing List Archive

Thomas, my installation is "Plugs Up" - and as far as I know, I am the only (one of the few?) that run their 13B almost exclusively on 100LL. I get 20 -25 hours.

----- Original Message -----

From: Thomas Phy

To: Rotary motors in aircraft

Sent: Friday, January 20, 2006 2:43 PM

Subject: [FlyRotary] Re: Spark Plug Fouling

Any difference with the "plugs up" operators?

I believe that most of us understood that leaded gasoline can lead to spark plug fouling. It turns out even with the "Scavenger" compounds it apparently will still happened. See article below:

I also read one report that address aircraft engine effect. It basically said that if the CHT is not kept over 350F the scavenger effectiveness is minimal. So this may be why aircraft sparkplugs do not seem to foul as often as the auto plugs (higher CHT).