Originally Posted by sergman89
I got a 5/16 heli coil, and the drill bit for it cracked the drill hole wall going into the piston...
When I look at crank cases they are 35 bucks without any insides. Is there something that can tell me how to take apart this engine crank case correctly and put it into the other?
best wishes buddy.... if you don't have an impact whrech the odds of you getting the internals out and sprockets and gears off are next to nun....
your best bet may be to just buy a new lower, put your cylinder and piston on it and start fresh, Thatsdax sells a very good lower assembly for 69.99 + shipping, there are others also but these lowers make for some really nice running engines in my opinion.