You should be able to run without the AC belt since the AC compressor is the only thing it runs. The noise however is either coming from the AC compressor pulley or the pulley where the jack screw is located in this diagram.
To replace that belt:
1. Loosen adjusting lock-nut, then turn jack-screw, Fig. 27, counterclockwise to reduce belt tension and remove belt.
2. When reinstalling belt, adjust belt tension to 5/16 inch deflection between pulleys.
Image (Click to make bigger)
Tuesday, May 29th, 2018 AT 8:21 AM