hissing sound

[iFurio]

The belt near the alternator is hissing really badly. Sounds like a really bad blow in the exhaust. I bought some belt slip spray and that if anything makes the hissing worse. What could be causing the hissing?

[iFurio]

You can actually hear the hissing in the video I posted in another thread about a whining noise. I want these sorted as you can hear them really badly :(
Saxo engine noise whining - YouTube

[wadoryu]

What the alternator belt or the cam belt?

[scottie_436]

Sure its not the alternator bearings?

Take belt off an spin it by hand

[iFurio]

What the alternator belt or the cam belt?

Pretty sure it's the alternator belt :)