Thanks. I have been getting the dreaded timing belt tensior tapping, and plan on changing the belt/tensioner/idler pulley/water pump weekend after next anyway, so maybe I'll push the schedule on that up and do it this weekend. The original owner gave me the receipt for a timing belt change at 70k, but I have seen some nasty worn out pumps in other cars by that time.

Maybe I'll drop a can of cooling system cleaner in and let it circulate this week, and do all the other deferred maintenance this weekend.