After all that, I still have no idea what you did. I don't know if you are pushing the foot at the same time as the new button on dash or if there is some other actual electro magnetic solenoid in the system. No pictures, no words, no part numbers, no explanation. Just a hose clamp filled with solder and a button on the dash. I can guess what you did but I thought it was a tip not a test? Why didn't you just put a new bolt or use the "nub" bolt thru the cable end and into the case with insulator?
Just to be clear, the 180 deg turning was for the "nub" bolt, as you call it, not the contact inside the foot switch, the whole foot switch is easy to replace. That "nub" bolt is sold by a member here who rebuilds starters. It comes off from inside the starter. Contact Post/Stud
I know you are all done with your mod, this stuff is for everyone else who may visit the post after I'm dead.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn