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Old 03-18-2007   #28 (permalink)
RallyBob
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Location: Pleasant Valley, CT
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Real Name: Bob Legere
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Originally Posted by hrcollinsjr View Post
Bob,

I didn't realize one could just hand grind the counterweights by hand and have it rebalanced. I figured it had to be a little more precise than that. I may have to try it sometime. It is my understanding that the tear drop shaping of the counterweights is preferred over knife edging.

Harold
The more precise you are with your layout and your grinding, the less work the machine-shop will have to re-balance the crank afterwards. I also weld- up the factory drilled balancing holes at the ends of the counterweights in order to reduce the chances of oil getting trapped in the holes and creating more windage. Takes more time, but it looks cleaner and hopefully works better.

Bob
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