i've got a stripped screw on the bottom of my mt 2 that holds the engine down. i've gotten a screw extractor......didn't work......i've tried using a chizel to knock a slit in the top of the screw for a flat head....didn't work. it turned, but the whole engine moved too. i'm out of ideas, and i dont have a dremel tool. i've been doing this for the past two hours. what should i do to get this screw out?