Hi everyone, I've been working on a Coleman 550 B stove. Troubleshooting was a bit annoying, as one defect was compensating another. It looked like it was a running on a nearly empty tank. Only fumes and air passing through. When shook, it picked up fuel and was burning on for several seconds. But the tank was full. Problem was the outer tube (I don't know, if there is an official part name for that) of the fuel pick up was clogged at the bottom and had a small crack at the top. So it only picked up fumes and no gas. Now about repairing it: First option would be to remove the outer cracked tube. So the inner tube will pick up fuel at the bottom. Risks I'm thinking about: the diameter of the inner tube is not restricted anymore. This could lead to increase of power or irregular combustion. On the other hand, small particles might get picked up and clog the valve/generator. I'm okay with both. But I'm quite unsure if the outer tube serves another purpose: Maybe some kind of protection against the flame burning through the generator and back into the tank. This could only happen, if you're running on fumes and low/no pressure. That's what I would like to avoid. I guess Coleman wouldn't implement this part, if it wasn't necessary. Second option would be to solder the crack. But I'm unsure if this will work out, as it needs to be airtight. Any opinions to this? Or anybody experienced this before? Attached are some images. Thank you very much, Jake
I believe you change the startup procedure, just guessing. Would need to use a torch to preheat the generator quite a bit or likely the stove would never settle down to a blue flame. Duane
