Hi everyone-ihave a 93 sc, and i have a belt ?-it seems as if th main serp belt on my car is physically touching itself-the area where the belt contacts the water pump puley is contacting the top of the belt where it goes above the pulley if that makes sense-why is this, and what are the diameters of the stock pulleys-wondering if the car has underdrives b/c ive read they cause close tolerances. mike.