Last week Walt and I went to pick up our balanced crankshafts, pressure plates, and flywheels. Although ours were finished when we arrived, the owner of the company, and balancer extraordinaire, showed us how it's done.
First pics are the bob weights attached to the crank.
Next Walt watches as it's done.
Next is crankshaft spinning up to speed.
Fourth is the drill press that removes excess metal to balance the assembly.
Each component is individually balanced and then all bolted together for a final balance.
Last pic shows our two cranks, flywheels and a bag of pistons ready for the trip home. We had to bag them because of rain, and also she polished our crank journals so we didn't want them to get dirty or rusty. I was extremely lucky in that all the weight we removed from the flywheel and all the counterweights added to the crank only required one 5/16 hole about a half an inch deep to balance the assembly.