Sorry for not replying sooner ... had computer trouble that did not allow me to connect...
Thanks for all the information you gave me [sm=thumbup.gif]- I will try as many of your suggestions as I can over this weekend and let you know the results.

There is still one question in my mind on which I would like some more feedback:[sm=confused.gif]

Assuming the engine did overheat in these first 3 flights, what damage could have been done? (would it affect the metallographic composition of the piston/sleeve/ring, etc..? Should I be able to measure any distortion on the internal parts? Other?) - As I said, the engine lloks as good as new on the inside as well as on the outside....