I would like to polish up the 3 coin return buttons that are very rusty on my Bally Campus Queen, but they are held in place with a ring clip - anyone got a trick on how to remove?
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I removed one before on another game, but it was easier to get to (I just mangled it with plies, then replaced with one of those more normal E clips).

I'd prefer not to have to take the mechanism apart to repeat the "mangle with pliers" approach - so wondering if someone has a secret trick?

thanks

Doh! Ok so the coin stuff just in clips and lifts out, leaving two small screws. Once they are out the button can slide out and I can easily get clip off with mole grips.
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Thought I would post this in case anyone else is ever as dumb as me and needed a hint

Completed the door.

Started like this:
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First had to strip all that horrible green paint off:
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Primed, finished with Hammered Silver, buttons and larger bolts polished by placing in drill and pressed into Scotch brite heavy duty pads, then steel wool, then my favorite metal polish; Maas.*
Set of smaller bolts from Jeff Warwick, the gent that sells the back-glass lift channels.
New lock from PBR.
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*Disclaimer - all these things learnt from others on Pinside over the past 2 years

I've ummed and ahhed about that, but I don't think so this time. Its faded, but original. Always tricky decision. I painted a K&Q as it had been burnt, no brainer for me, but I always struggle with removing that original paint. Anyway, plan is to clean up playfield as best I can, (touch up pop caps as pbr do not make the replacements), plus, and this may seem at odds to my statement about the cab, I've ordered a new glass from BGResto as the original was super flaky. Will post pics when all done.