the pitting on this piston is what happens when your bering on the bottom of the conecting rod (cyndrical bearing) goes bad because the metal from the bearing get sucked up into the cylinder as the oil from the fuel mixture lubricates the crank
the pitting on this piston is what happens when your bering on the bottom of the conecting rod (cyndrical bearing) goes bad because the metal from the bearing get sucked up into the cylinder as the oil from the fuel mixture lubricates the crank