Hello, how are you ... it is a lie that these engines suffer from that problem. In general, when it occurs, it is due to a bad operation of the technician, in order to give you a help I understand that the engine has not intervened, I mean not to be rectified its bench circle, if the ropTura is presented in the outside where the Damper is mounted, it must be checked that the damper protrudes from the tip of the crankshaft and that the screw tightens on the damper In false this screws carries 134lb-ft applied fat in the thread and especially between the head of the screw and the arendla Check in a rectifier and look that this does not turn outside its own axis, that it is not crooked even though some of these crankshafts have not been beaten and tend to twist what is overwhelmed to break, quant me more about this problem, I think you can be able to hire you ,,