Bill - thanks, I appreciate it.
Dave - the crank is machined steel, and looks to be Nickel plated. For some background, I'm a design engineer for an electronics manufacturer where we turn and mill our own parts. Soldering to steel or nickel plated anything is a little rough, but not off the table in this case. I'm considering modeling the crank up in CAD to get quotes for it to be 3D printed in a metal, or machined. I need to remove the chain of parts its riveted to first, which ultimately requires a 3 mm socket (on the way). For loctites I'd be looking at a blue loctite - can be removed if necessary, and more importantly here it comes is more viscous varieties.
Chris - I freed up all the other parts already, including the one that I think caused this damage in the first place. As I wrote already, considering useing blue loctite, or have a new part printed. My only qualm with printing a new crank is needing to rivet it back to the eccentric pin.
Thanks everyone for the advice and options - bouncing ideas around helps a lot.
-Chris
