Ok he jsut came home this morning and I have everything figured out> He doesnt know too much about r/c but here goes. It wasnt really the engine it was the rear pivot block, and something else. He said the engine b/c these parts are near the engine. (lol, see how i could get scared), and he forgot to tell me a guy up at the track fixed it for him. So i am happy. Maybe if i let him take it again he will blow the engine or somthin.