Quote Originally Posted by zchandran View Post
I don't understand why you want to keep the pulleys. You have to remove the pulleys anyway to get to the water pump, so why not just change them while you're in there? I'd rather bet on a brand new plastic pulley with fresh bearings, than a steel pulley with tens of thousands of miles of known bearing wear.I'm getting ready to change my timing belt again. I put in a ContiTech kit at 50K miles, and I'm now at 130K, so I'll just get the same thing again.
The reason I would like to replace he plastic pulleys is because I have seen multiple stories of aveo owners losing an engine because the plastic pulleys failed. Not the belt itself. Plastic is just not a good choice for this application. With all of the intense heat and stress from the belt tension, I'm suprised they don't fail sooner.