I noticed yesterday my car started making a pulley noise squeaking, light clacking and I pop my hood and the crank pulley is wobbling. I checked the bolt it was not loose and the pulley was not either. It seems like maybe the balancer broke off of the inside or something. anyways it happened suddenly and the pulley is tight on there but wobbling I am going to take it off today I've heard of JZ crank pulleys breaking before I think Yes?