Greg D from WV
TVWBB Member
Here is my first peace of advice. Since you said you are planing to take it apart, you are going to find one bolt that goes through the firebox and the frame. I'ts the only thing holding in the firebox. That sucker can be a real headache. My advice is, if you get a couple wrenches on it and it fights you for more than a couple minutes grab a dremmel or angle grinder with a cutoff wheel and remove it that way. Same advice I got from someone here (I think Bruce) when I was fighting it. Its also the spot that Bruce mentioned could have rust. I've been lucky enough to not have a problem with most of the other nuts and bolts.
As for cleaning the inside, I wold just use the products already mentioned to get the grime off. Grinding out everything sucks and isn't necessary for something that will look the same after you use it a few times. You mentioned the drip pan but may be surprised how nice the drip pan is after you knock off all the big stuff and take a razor to it. The bars that hold the dip pan in looked pretty bad in your picture but they can be cleaned up or replaced.
Take lots o pictures of your progress to share, and ask any questions you can think of.
I *think* this is the bolt you are talking about? Hard to see in this mass of ...yuk/rust/grease/unidentifiedbrown

You all are more well versed on the layout/orientation but I have the box on it's side so it isn't resting on the drip tray. Thinking you are talking about "10. 1/4-20 keps nut" from the schematic from the owners manual?