Let me correct myself. The squeal DOES change pitch as engine speed changes. (I should have proof read my earlier post..oops!).

 

this may sound stupid but try it 1 st Check your moter mounts make sure there tight. Then jaust let it start to squeak then move the moter side to side see if that gets rid of the noise if it does it may need a clutch alingment your belt is running on one side of the inner sheave. No gauratees but it is worth looking at.