Got it at a yard-sale for $5 and I've had this 1952 Army stove for at least 20 years, but never used it beyond a test-firing just to see if it worked. There was a problem with sputtering and low pressure, so it went back into it's case and sat on the shelf. For liquid gas I already had my SVEA 123, no need for an alternative. Fast Forward and I just wondered if I could get it to work and there were all sorts of things wrong. For starters I couldn't fill it because the outer pump cylinder that you have to pull out to fill the tank was corroded and stuck solidly to the fuel-tank opening. I made a tool from a piece of hardwood whittled into a long tapered cone that fit into the stuck cylinder so it could be jiggled around, twisted and finally pulled out. It was filthy and black. Cleaning with one of those abrasive scrubbers got it all shiny and if fit easily again. Some Coleman fuel and almost lighting but that leak prevented ever reaching any operating pressure. Also there was a little fire around the pump-housing, so that's where the pressure leak is. I made a leather gasket that didn't quite work, but I think the problem might be in the threads of that outer gnurled ring that the pump tightens into... wrench marks on it and it might not fit right. JB Weld will probably solve that. But a larger problem showed itself as I looked into the tank with my flashlight, it looked like heavy Diesel-Fuel inside, but shaking it around I saw it was the nice clean Coleman fuel mixed with ROCKS and MUD! Maybe this was someone's idea of a joke, or maybe they were just "paying some guy back." It doesn't matter, because it all comes out as a big problem Many Years Later!!! The plan is to tear it all down and try to empty the fuel tank through the top hole where the burner pipe threads in. The Job for this morning. It would certainly be easier if the filler-collar inside the tank could either be removed or just didn't go so far into the tank so NOTHING comes OUT that way... (to be continued!).