Oilman--Point well made. I don't think I would take on doing something like this for someone else. I'll be sure to carefully, carefully check over the whole thing--stuff a drop light inside on a dark night, or something similar, to find any surprise thin spots. Haven't had the cleanout covers off yet, waiting for the oil to work some more. You say that efm had stopped making parts for the older furnaces--are they now available again, or are they still purest unobtanium?
LsFarm--I think I see some nuts and bolts holding on the baffle, but haven't been able to get the outside jacket off the front section yet. Waiting for oil to work on jacket screws, and worm tube setscrew. And time to work on it. O yes, the solvent headaches, I've taken to using a respirator or a fan a lot more than I used to do.
Ha, no worries about staying home at night this time of year. Lots and lots of stuff to do with garden, equipment, and planting all sorts of stuff (from trees to fenceposts.) But I suspect, this might be a little bit more project than a couple weekends will put away. Hey at least now I have an excuse to buy a welder
Thanks much for the tip on Kroil. I had tried some at a neighbor's suggestion on an old truck I was working on a number of years back, as I recall, it had a real distinctive smell and seemed to work pretty well. Will keep in mind if other solutions don't work out.
Side question: if you bought an old air-acetylene torch with a few B cylinders at a garage sale of stuff from an old fellow who passed away, how do you prove cylinder ownership (or lack thereof!) when you go to exchange them?