On my 16v the engine makes a very loud whining noise, like a bearing, Its not the alternator as I removed the belt and the noise remained. The weird thing is it has made the noise since I have owned it, then the engine went so I put a another engine in, with new cambelt and tensioner, but still get the noise!
The noise goes with the engine revs, and you can here it when my missus is driving it up the road, over the magnex exhaust!

Any ideas?
Oh and I havent got PAS