I have this boxcar with 2 small problems.
1— looking at the boxcar door, there is some grayish spotting on the metal ( I assume the door is metal). How can I remove that. Can I brush it off with a Drexel tool?
2— once I operate the car with my RCS track, the plunger stays down, and usually causes a derail or a short of some type a little after the car continues on. I have lubricated the plunger many times. It does not stick. How do I get that plunger to retract?