Thread: Dropped a piston

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if the rings turn free in the ring lands and the skirts are not bad size etc file off the hi spot run it . new pistons can and do have a weight dif that is why you bal the mass so all the pistons /rods are the same to 1 gram or less new pistons can be off more then 3 grams to a set of new pistons if this is a forged pistons they take take alot when made . if cast look for cracks by the oil ring land this would be the back side webbing that holds the piston skirts to the piston the oil ring on a cast is wide open and this makes them weak