I have an alfa 156 selespeed which had a similar problem (screeching
starter) but only on cold starting. I booked the car in at Alfa & they
repaired the starter - still didn't sort out the problem. Booked it in
again & they changed the cambelt tensioner & all belts - still didn't sort
out the problem. I instructed them to do as Simon & ppelectron advised
(striping & cleaning) & presto its sorted. All the other work cost approx
$2000. Fortunatley it was time to do the cambelt anyway. The repair &
clean of the starter only cost $100. Thx guys.