Originally Posted by c32bnz
Thanks everyone...........pulley, bolt and front seal ordered. The bolt is tight so my gut tells me there is an issue w/ the rubber/harmonic balancer. Going to replace all of it, $260 will give me some pretty cheap peace of mind. Of course my mind starts wandering towards.........."Hey this is a good time to install a Eurocharged 185mm pulley........LOL". But right now the extra power is not important. Merry Christmas!
I think you have it covered. It looks like the pulley. If you compare your pulley (in post #1) to Howard's (in post #23) you can see difference (visible separation). Your crank/key is probably fine.
A 3/4" impact is good for taking it off (you will need to remove your fan).
As 32Krazy! suggested, one more item you may want to get is the tool for locking the pulley (when re-torquing it) . Since you are using a stock pulley, you can use the mercedes tool
Mercedes Harmonic Balancer Holder Tool Crank Pulley,E320,ML320,E430,ML430,C280 | eBay
or you can use the style that temporarily goes in place of the starter (locking the flywheel).
Chris
P.s. some will tell you to oil the seal. but my motor builder insists that this is the dry-type