Hello All First, Season's Greetings to everybody! - And then, the trouble: A good friend of mine borrowed a Px 821 for a coupple of days to lighten and cosy up his Christmas-tree sales stand. SMS comes in: Lamp is quickly loosing pressure after pre-heating and will not burn for very long, but no leakage of fuel. No drama, the lamp is one of my "daily Bread and butter" lamps, been working like a clock for umpteen years, but with dents and scratches all over. First: Change rubber seal in tank lid - still loosing pressure, but no leaking of fuel. Into the water it goes, and, at the connection between the tank and where the lower part of the vaporizer, air is coming out in measures. As you can see on the picture, small balls of solder have formed around the tube. This tells me that he lamp must have been overly heated, which was confirmed by a look at the glass. Apparently, the lamp has been run for a time without the mantle (which was confirmed by the borrower), this has probably melted the solder between tank and tube. Q: Is it realistic to re-solder the connection - and if yes, how? Can I use ordinary soft solder or should it be silver? I do have bad experiences with myself soldering cookers. Another option is to save whatever can be saved and find another fount. All the best Bent
Well you can easily oslder it again. BUT you need some skills. Biggest isue is getting it clean for soldering and making sure it doesn't fall inside.
@Bent Jensen That should be fixable with a good quality electrical solder, maybe with a small (4%) of silver. Lanterns, as you know, weren’t built to run with the mantle removed, so it is highly unlikely that a repair will de-solder in normal operation. Cheers Tony
Superglue it! A couple coats of it won't cost you hardly anything and it seems to work great for me for small leaks in that area.