After a lot of cussing, those stubborn inspection plate screws are finally out. It looks like a dirt dauber had taken up residence at one time as I found its single floor apartment. There is also quite a bit of rust and old grease/oil in the joints. I've heard of some soaking it in a bucket but I'm not sure I'm understanding. Do you mean to just set it in a pan/shallow container and pour the/spray the oil through the parts or actually covering the machine in a bucket of oil?