drive belt and more?

[stateofidleness]

might be a bad bearing in one of the pulleys (idler pulley, water pump, etc.)
the fact that it was slipping off means something isn't as "tight" as it should be. im guessing it's a bad bearing allowing the pulley to "wobble" letting the belt slip.

let us know what it turns out to be

[hucqym]

yup! nice guess. It does look like the bearing on the cooland pump drive pulley is gone. I removed the belt and felt it by hand. It seems to wobble a lot. Bearing right?
Thanks for the suggestion!

Also can someone let me know what the part number is. I hope I dont have to change the whole water pump part #996-106-011-55
I would need to work from underside as well I presume? which would mean lifting and hence I cant work on it myself?