So I just finished a rebuild on a 16hp Kohler, CV460S. Everything went fine until I snapped the crankshaft bolt on the flywheel side....bad...about 3/4" deep. There is no getting the bolt out. Replacing the crank is not an option, the engine just isn't worth it. Are there any options? Could I drill and tap the top 3/4" inch of the shaft and put another bolt in? Any ideas? I have nothing to lose at this point.