Crankshaft Balancing:Theory 101 Henson Racing Engines Oklahoma
With inline four and six cylinder engines, and flat horizontally opposed fours and sixes (like Porsche and Subaru), all pistons move back and forth in the same plane and are typically phased 180°apart so crankshaft counterweights are not needed to balance the reciprocating components.
Balance can be achieved by carefully weighing all the pistons, rods, wrist pins, rings and bearings, then equalizing them to the lightest weight
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...hmm, is that true? If so, why are there counter weights on the crankshaft?
ReplyDeleteIf is just the oppossing pistons and rods that are providing the counter weight, then there would be counter-weights.