A while ago I replaced the drive belt, tensioner and idler pulley on my 02 Saturn SL2.
One thing that worried me was that the pulley on the new tensioner is way bigger in diameter and thickness (the area where the belt rests) in comparison to the pulley on the old tensioner. Both tensioners look different too, but the mounting holes are the same.
This is the ACDelco tensioner the store carries but it costs way too much for me, it looks identical to the one I had in the car. I am not sure if it was ever replaced though:
This is the new tensioner I installed:
Because of the differences in the tensioners, I popped the hood to check on the drive belt and tensioner with the engine running. There are no funny noises, but I can see the belt moving side to side in the tensioner pulley.
While checking the belt, I noticed the crankshaft pulley was wobbling. Is this caused by the new tensioner? Maybe the crankshaft pulley was wobbling before and I didn’t notice it.
Please help! thanks!