Ok the other day I was changing the transmission drive belt on my old Toro walk behind, and the bracket that keeps the electric clutch from spinning had to be removed to get the belt around the engine pulley. the bolt holding the bracket also serves as a engine mount bolt. Unlike Kawasaki engines there is no nut holding the bolt, it is threaded into the engine block itself. Well when reinstalling it, it never tightened back up, the threads are stripped out. What would be my best solution in this case, tap it to a larger size, some kind of threaded insert? Any help would be appreciated.