Hello!

I recently acquired a 1950s-tastic Sterling (Ser. # 5A782367) on the cheap, because the owner described it as having sticky keys.  In reality, the typebasket was completely immobilized from oil and dirt and whatnot, and required an afternoon's worth of TLC to get all the keys moving reliably.  I succeeded, and now it types very nicely, however the ribbon doesn't appear to be ratcheting properly.  When I type, it moves forward and then returns to its original location without ratcheting forward to the next click.  The direction lever switches as it should but it doesn't work any better in the opposite direction.  I tried cleaning all of the linkages I could see, but it didn't appear to have much affect.


The only other SC portable I have is a Speedline-era Clipper that is too dissimilar underneath to inform me on my current situation.  I was wondering if anyone might be able to see what's wrong, if there's any missing/incorrect pieces etc.?  The teeth on the gears seem in good shape, and nothing (obvious to me, at least) seems amiss underneath.  


I cleaned this bit, which I'm thinking may be the culprit, but I'm not really sure at this point.  Is it possible that there's still too much drag elsewhere that is preventing the full range of travel?  Manipulating it with my fingers seemed to generate the same amount of travel as it would when pressing a key.

Any pointers would be greatly appreciated!

Matt