Hello,
I've just replaced the bearings in the alternator and also bought a new drive belt to replace the existing on reassembly. I got the belt from Autolink and is a Goodyear 10AV0613. According to Goodyear's catalogue it is the correct size for a Cappo but it's slightly bigger than the original. There isn't enough adjustment on the alternator bracket to tension the belt so the old one is back on for now.
Before I source a smaller belt, has anyone else come across this? I reckon a 587 or 600mm belt will be nearer the OE belt that is on the car now.