May be not rats, but mice can sometimes carry acorns into the timing belt covers and I have seen pieces of acorn shell in there. A piece of acorn shell on the belt can certainly cause a slip at the crank. Perhaps the lack of oil leaks from your blocked tensioner has removed the mouse deterrent that the Alfa engineers had so thoughtfully incorporated into their design!
I found it a good idea to set some mouse traps and check them regularly to keep the mouse population under control and your Alfas out of harm's way. "Richard C. Wagner" <[email protected]> wrote: [alfa] Rats Joe: I'm very sorry to hear that your belt slipped. We'll all keep our collective fingers crossed for you. Would you do us all a favor? When you remove the belt, go over it very carefully with a magnifying glass. -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]

