Ok fellows, I cannot help myself from jumping into this discussion. It baffles me why this engine break-in procedure keeps coming up with a new idea of re-inventing the wheel. The basis for any engineering discussion starts out from the review of engine experts, and goes from there to form some logical conclusions. Let's start out by reviewing what is in Dave Gierke's publications "Radio Control AIRPLANE ENGINE GUIDE", "2-Stroke GLOW ENGINES FOR R/C AIRCRAFT volume 1",and critique what he has to say about model engines besides what Dar has on the RCU site. Can someone explain to me why there is so much effort being exerted to see how fast a new engine can be sent into the air out of its' box? Is it the cost of fuel, or the time it takes to follow someone elses rules? I have spent a good portion of my life working on full size aircraft following manufactures instructions completely in order to make it a safe machine to be transported in. Why is it so difficult to follow manufactures instructions after purchasing a model engine? It really comes down to deciding whether you want to do it your way, and if promoting your way in print and someone ruins their engine, are you going to buy then a new engine? I sure would not get into a pond of crocodiles in suggesting someone follow my new method of breaking in an engine if I had to replace it.

I suggest that the Gierke books be read and digested while comparing what Dar says, and then argue the engineering facts about these small 2 and 4 stoke model engines. If anyone wants to page through these books with me, my e-mail address is: [email protected]