I have chimed in on a few Threads but have never pulled off the Crankshaft Damper before.
One of My comments is often that the Old Seal may have worn a groove into the Shaft. I can't recall if the Seal rides on the Shaft itself or that Sleeve.
If the Seal rids on the Shaft and it is grooved there is a Speedy Seal that has a sleeve the slides over the grooved Shaft. However, the kit comes with its own Seal.
I also ask a question a while back if anyone used a Vacuum Pump to vent the Crankcase vapors out of the Crankcase. Apparently People that race Cars use them. Since it reduces the Crankcase pressure or negates it altogether the claim is that the Seals cannot easily leak Oil out.
But, no one responded that they had used one so that is an experiment for someone else or for Me at some other time.
Back to the Crank Damper.
My comment on the other thread was something like "what do if you replace the Crank Damper Pins and they still slide in easily"?
And, the other comment was that when I did this sort of thing at work (not on Mercedes; I had worked in a Naval Ship Yard in the Diesel Shop) We drilled the Hole undersized and then used A Reamer to ream the Hole so the hole is straight.
The reason for that is that when you Drill Something by hand the Hole tends to wonder a little.
Another comment was that I the Holes did not look abnormally worn/elongated and the Pins were not I thought the inside and out side diameters could be roughed up and the Pins and holes coated with JB Weld Epoxy. Pins slid in and Damper Torqued down and excess Epoxy wiped off.
But, that is a purely experimental thing.
I also said that Loctite at one time made some sort of Red Jelly in a tube that was used for when you installed stuff on a shaft and it was slightly loose fit. The advantage there was that the Loctite is easy to release the Loctite by heating the Component with a Propane Torch while with the Epoxy it is more difficult to do that.