Crank re-balancing ???
I've got a rotating assembly that has been balanced. Found out that I need to go over .030 more (total .060 over). Now my question is I need to go to a different piston and rod. The weight of the "old" piston and rod is 1660 grams. The weight of the new piston and rod is 1650 grams. How far off on the weight can you go without re-balancing the crank ?