MSD distributor, can this be cleaned up

I have used those distributors for many years. At some point I had two in a row do that so I contacted MSD and they explained that this was the result of a design error regarding the plating of internal parts and that the new ones didn't do that any more. I told them that this explanation did not help me with the products that I already bought from them. They offered if I would send the distributors back to them, they would completely test and rebuild the distributors with the new plated parts. I think it cost about $130 for both distributors including my shipping costs. They found issues with both the distributors that they also fixed with new parts and that was part of the cost. This was all maybe 6 or 7 years ago.

By the way, you can clean them up, but they will just rust like that again...