Cleaning the blades of an am tuner.

[Brett a]

So, I think I might have made my first mistake in my newly developed obsession of working on really old equipment. I sprayed the tuning blades of my '46 Zenith tabletop with Deoxit. It worked pretty good before I did anything to it, but i couldn't resist trying to make it better (next time, I'll resist)

After I sprayed it, it no longer tuned at all, just static. Now that it has dried overnight I'd say it has about 60% of its ability back.
What should i do now?
What should I have done? (Leave it alone would be a good guess)