m50 serpentine belt replacement question

[Russell]

CRC belt conditioner seems to reduce the squeal on a cold start. Spray in on pullies and belts and it seems to stop start up squeal. Not sure how long it lasts. It is a clear thin substance that dried slightly tacky. Advance or Autozone has it for about $3.

[Denton]

CRC belt conditioner seems to reduce the squeal on a cold start. Spray in on pullies and belts and it seems to stop start up squeal. Not sure how long it lasts. It is a clear thin substance that dried slightly tacky. Advance or Autozone has it for about $3.

Thanks, I'll check into this until I can get it looked at.

[bsell]

Wear is the tensioner bearings. They just seem to get nosier over time. The tensioner's surface does not seem to wear out. There are at least two types of sounds I got from mine when worn. First is a squeal when engine is cold. That goes away in 10-20 seconds. The other is a constant background 'sound when bearings are worn.

You say 'constant background noise'. Does that noise change with engine speed?

I swear mine sounds like either the alternator or tensioner bearings. I guess I have to wait until taking delivery in January to see for sure.

[Russell]

does not seem to change with rpm. however, it is added to by other sounds so it it hard to picky out specific sounds. Just seemed quieter when the tensioners were replaced.