I've looked around the forum, on google, in my manual, and I can't seem to get the answer I need.

I noticed today that the assembly that holds the tensioner pulley looks like it may need to be tightened. It's possible the bearings are just worn, and it needs to be replaced. It uses a pretty big allen wrench, bigger then anything I have. Does anyone know the exact size so I can pick one up when I go to town again?

It doesn't seem to be affecting the belt at all even though it's at an angle. It's not squealing or looking worn on one side of the belt. I even accelerated and watched it to see if anything looked really bad, and it's riding okay for now.

I know it needs to be looked at, but I need the allen wrench to try to tighten it, and even pull it off later if it needs to be replaced.

The biggest allen wrench I have, I use for changing the brakes out on the front of Chevy's. It's no where close to the size I need.

__________________


86 Mercedes 300SDL - 400k+ miles