Engine Guys,

 

I know the engine doesn't cool very evenly when on the ground.  And we only measure CHT at one spot on the bottom of the cylinder.  Is it possible that some areas of our cylinders are getting much warmer, or staying much cooler than the probe is reading?  I'm assuming that, in flight, that the cylinder temp is more even in all areas due to the increased air flow.  Could baffling (good or bad) send a high amount of air to where the probe is, not necessarily cooling the entire cylinder, and make your number look good on your monitor, but really be cooking your cylinder?

 

Mike Easley

Listening and Wondering