An article in Sport Aviation several months ago (which I just
got around to reading; unusual to find useful info there) talked about
Rotax's recommendations for spark plugs in their engines. One thing they
require, in addition to using the correct heat range, was the use of
thermal conducting paste (similar to what you'd put on a power transistor
or computer CPU heat sink) to provide better/faster heat transfer from the
plug threads to the head. Now, I've been messing with IC engines for
around 50 years, and while I use anti seize religiously on my Lyc plugs,
and occasionally on other stuff, I've never thought about using thermal
paste. Must have missed a memo at some point in my past.
Recent and recurring discussions about needing colder plugs in high
duty cycle rotaries, including Steve Boese's research several years ago,
got me thinking about connecting the two dots.
Since I'm not flying yet, is there anyone out there who's flying a
lot who thinks it might be worth a shot to see if it will extend the life
of their already cold plugs?
Charlie