I took this e50 engine off of a barn find. Top end not included. Cleaned it to find a hole in the case in transfer area exposing the case screw. My question, is this garbage? Is it fixable? Do I need to take the whole thing apart? I’m not a mechanic but I’ve put together a few mopeds, so my skill level is that of a novice for sure. Do I need mad skills and special fancy tools to fix it, that is if it can and should be fixed? Any advice would be appreciated I hate to put time into something that’s not gonna work. Thanks folks!