Sticking Alternator Pulley or not!

I have only tried running the car with both the alternator and power steering belts fitted together. I didnt think you could run it with only one belt fitted. Anyway forget all that why did you ask?

Hi Smoggy it could be that the com end bearing is gone in the alternator causing the rotor to bind against the stator when the belt is on but when the belt is released the rotor centralises and you can freely turn it. if you have the belt off get hold of the pulley in one hand and hold alternator down on the bench with your other hand and see if the pulley moves sideways or possibly you might shake it and see if it rattles,also spin the pulley and see if it make a noise ?
S.B.

Yeah thanks stour boy thats what I did yesterday and it was

So I ordered a recon alternator from my local autoparts and today it arrived, to fit a Vauxhall Cavalier

Ithought £80 was too good to be true. Stupid Gits.