my alternator tensioner on my 1995 esc cos wont stop squeeking i have changed the belt changed the tensioner for a good second hand one then bought two new beerings and they all get noisey within 5 minutes of running i have run out of ideas now and need help as i am getting some very strange looks when sat in traffic as it is so loud i have taken the air-cn belt off and that makes no differents to the noise and i have bought a snap on stephoscope which i have put on the alternator/waterpump and the power steering pump and they all run quite so the noise is deffinatly comming from this pulley any ideas much appriesiated as i have run out of ideas now cheers