On Wed, 27 Sep 2006 09:20:12 -0500, Dan Luke wrote:

*Improper* LOP operating technique can harm cylinders, even cause
catastrophic failure by detonation.

Hmm. Detonation, if I follow all this correctly, yields lower EGTs. So
someone leaning by EGT could be fooled into thinking that all is well,
even while cylinders are being damaged. This is exactly the type of idea
I was missing; now I think I see.

But CHT goes up, right? Would it go up enough (ie. beyond 400) to raise a
pilot's concern?

- Andrew