Despite all the advice received, my brand new SVEA 123R continues to pulse throughout the time it is lit. I have fitted a "wick" to take more primer, I have double-primed it, I have warmed the base of the stove before priming, I have primed with both meths and white gas, I have run it until the base is almost too hot to touch, still it sounds more like a steam train (slow chuff chuff chuff) than anything else. I hardly ever get the satisfying "purr" sound from it. What's wrong with it ? Could the wick be in bad shape ? or in the wrong place ? Any ideas welcome please.
Have you got water in you fuel also do a check on your fill cap still could not be sealing also check where it sits on the screw part no pits the cleaning could be set wrong take it out then try it then if runs ok put back in at 4 clicks
Greetings, Besides checking your fuel for water, you might want to filter it, before filling your stoves. I do, and have for many years. Also, are you over-filling the tank? Sounds like you might be. The little SVEAs need air, in addition to fuel, in order to work well. If all else fails, and you want to send your little stove to me, I'll be happy to check it out for you, test it completely, and see if I can find the fault, if one does exist. Just send me a PM, if you want me to check it for you, and we can go from there. After checking it out, I'll return it to you, with my test results. Take care, and God Bless! Every Good Wish, Doc
I think Doc is right on. If you are over-filling the tank, it gives very little room for the trapped air, and the pressure may not increase sufficiently enough to give the purr. All self-pressurized stoves must have the fuel tank "hot," in order to run properly, but that is assuming there is a proper amount of air to pressurize. Try with half tank of gas, and see what happens. If this fails, you may have to remove the burner stem, and check for the proper installation of the wick. The wick should be pushed in all the way. Might as well take out the wick and examine it, before you reinstall. Just note the location of the spindle (directly over the number "1" of "123"), and twist in the burner stem to the original depth.
Did you try it with a pot or cup on it? My 123R chugs quite a bit when it's cold outside until I actually put a cup or pot on it and then within a minute or so comes up to a full roar as the bottom of the cup/pot reflects heat back into the burner.
Thanks for all the advice and especially to Doc Mark for the kind offer (long way to send it !) I'll have another fiddle and also remove the burner and look at the wick. It is certainly better with a pot on - maybe that's all there is to it. Thanks to all for the advice
