Molnar crank on balancer

abdywgn said

Are most cranks drilled during balancing because it is less expensive or that they do not have the machinery to cut the OD down? Seems to me the later is the prefered method. Thanks for sharing info and pictures.

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It takes less time to drill holes. Also the cranks are very hard and take carbide cutters to cut them. Cutting the OD also cuts down on windage. . That crank was taken out of the balancer 8 times and put in the lathe 8 times and its not done. You can see on the graph in the first post the change with every cut up to 8. I'll repost the the rest of the balance and cuts. I just walked down and he was closing up for the day at 7:30 pm.