That's right....I blew it. I broke off a 3/8 24 ta[ in the end of the crank. I was following advice from the board to install a bolt in the end of the crank to hold the harmonic balancer on. There were reports on the board of HBs going thru the radiators. Anyway, I installed the bolt, but now when putting the engine together after a rebuild, I thought I'd deepen and strengthen my bolt hold. I twisted it too hard and it is broken off and very stuck in there with no projecting piece to grab. Has anyone had any luck with carbide drills or tap flute extractors? Next option is to install the HB with loctite. Thanks - Scott
