2000 Infiniti I30 6 cyl Front Wheel Drive Automatic 135k miles
noises from surpentine belt can't isolate sounds like bearings rattling however no play in any of the pulleys noises stops when a/c turned on, am I damaging compressor if not fixed? Is it the compressor?
If the noise stops when you turn on the AC, the idler bearing on the AC clutch is probably the culprit. You should be able to tell by removing the belt from the compressor and spinning the pulley by hand. If it makes any noise at all, you've found your problem.