thanks shoestringracer for the info. you answered my questions well. I will hold off on the sealing, I am use to sealing the heck out of my hpi savage engine to keep it from leaking. I have read the article on the link you suggested...very good.

I got the specified engine mounts for the O.S. 18 to go on the MT2 and I think I have something wrong here. With the flywheel and cb on the engine, the chassis holes do not line up with the engine mount holes. I am going o post some pictures if I can get them resized.