My air pump on my 87 makes the most annoying sound in the world, especially wen cold. It's a dull wwwwrrrrrr sound. Can i just remove it and get shorter belt? I thought it was the waterpump, but once the belt was removed for my valve cover(s) removal, i turned all pulleys back and forth and side to side, and the air pump made the typical worn out bearing sound, like a grinding feel sound. So, could someone explain to me wat i should do, or can do. Thanks.