I am trying to change the timing belt on an 87 CRX si, but I can not get the crank shaft pulley bolt off. I know that (I think that) the motor turns counter clockwise, does this mean that the bolt is right hand threaded? I have an impact wrench rated at 345 ft Lbs, but she ain't moving. If someone could please let me know which way I need to be cranking on it, I would appreciate it