Hi All-
Circling back to this thread again. I had pretty good results using all of the above-mentioned methodologies: fine brass brush, fine scotch pad and lastly, the JB Weld (original formula) metal epoxy. The surface is now smooth to the touch, and very few visible signs of rust, which seem to been neutralized with a combination of the sanding and filling. If you look close, you will see there remain small cavities at the site of the corrosion, although I am not sure if its deep enough to be an issue. I will need to take a magnifying glass to it as my eyes aren't what they used to be.
Question: should I worry about the fine micro-scratches on the chromed surface? If so, what is the best way to remove them? I only have Wet/Dry 400 grit on the shelf and I suppose I should step up to something finer, like 600 grit? Also, does it matter whether I am dry or wet sanding, not being sure of context or application of either. NMTR6 suggested clean up with Mother's or Autosol.
With assembly, it was suggested to oil the inner surface of the oil seal and the entire length of the stanchion (just below the triple trees), and every component beneath the oil seal (excluding the bearing nut), or do I have the wrong? Also, Hylomar blue is recommend for the seal holder threads and the threads on the bearing nut that holds the bearing and the shuttle valve in place?
Thanks to all for your great suggestions. I am thrilled that I have been able to salvage this otherwise serviceable part for my rebuild (while leaving me a second set). It never would have occurred to me that chrome could be sanded.