vintagemotif

I'm I doing this correctly? Here are a couple of photos of what I have encountered.
I thought I was cleaning the oil off the machine. The one area was covered with oil (top where there are numerous oiling spots). I did see the oil lift off and the black japan start to shine through. But there was only a little bit of the japan showing. I thought was I looking at metal, had the japan worn away. I would wipe this area clean and it would be cloudy again. But I continued to use the GoJo and elbow grease to clean it. I'm starting to see more of the shiny japan, but a lot of elbow grease is need for that to happen. The entire machine has this cloudy look of dirt. I'm now thinking should I just use the TR3 for this type of work. Help! In the past, the previous machines were easier to clean. I'm I cleaning the glaze off? I hope not. Billy, I'm I doing this correctly?