Also, while you're getting things sorted, check the size of the slot in the alternator pulley. PSD ones have the wrong dimension for the Woodruff Key(at least mine have). They've cut it the same size as the charger pulley when it should be smaller. If yours has this problem then get the slot in the alternator pulley re-cut, the key slot in the alternator shaft opened out, or do a bit of shimming with strips of feeler guage.