Re: Loose balancer
Ok, do this okie field repair.
Stick your balancer on about halfway. Find a round piece of scrap metal that fits the ID of the balancer so-so. A pipe reducer, collar, socket, something. Drill a hole in the center of it if you need to. You need it to have a hole in the center that fitrs your drill. This will help you keep your drill straight. Then drill the crank about an inch deep and tap it to 7/16 fine(try to get an inch of threads in there). Peen the snout of the crank lightly(snout can bend believe it or not) and buy a new balancer(may require a speedi sleeve, seperate subject). Put a little blue loctite on the crank when you assemble(blue not red dammit), a little oil or wd40 on the OD of the balancer for the seal, and antisleeze on a grade 8 bolt with a genuine balancer washer, 2 bops with a 1/2" impact maybe 3 if yours is weak.
Size the bolt length so that you have at least a diameter's worth of thread length gripping in the crank(over 7/16).Grade 5 works ok too. An extra washer to make a too long bolt work out is ok also.