People Now I must once again start with the phrase " I know this is not a Coleman board but....". So there, I said it. Now the question I have never before removed a Coleman NRV from the tank. However, I recently acquired a damaged tank from a Coleman 530 stove and decided to salvage the NRV. I found a 1/2 inch drive socket that would fit onto the pump opening. Then I ground a large square shafted screwdrive till the tip fit the NRV slot. By slipping the screwdriver thru the socket, I had a means of stabilizing the screwdriver. Then with a wrench applied to the square shafted screwdriver, I was able to unscrew the NRV valve. First time, ever, for me, anyway. I was pleasantly surprised to find that it was an all brass affair with what appears to be a stainless steel checkvalve. This brought up the following question How often is it necessary to replace these things ? I would think that a puff of penetrating oil would clean any crud from the mating surfaces eliminating need to replace it in many instances. Are all of the check valves of the same basic design, meaning stainless steel ball in a brass holder ? Are they all the same physical size ? Is there interchangeability between the various models of Coleman products. And last, do lanterns use the same NRV as stoves ? Any help would be appreciated. Thanks, Ken H.
By accounts one must be prepared to use a drill and easy out Tool sounds as good as it can get. I read there are 2 sizes of nrv's The big old ones and the smaller new ones that fit everything else. Most likely wrong though. Thought the ball was steel an prone to rusting as well. There you go my total knowledge on coleman stuff. Barra Like the valve bleed tube/ locking set up. If they only put the control on the burner side so it shut off clean then I think they'd be better. But I ain't got one yet. That and something besides a rusting steel tank!! Never mind can't have it all. Barra
Hi Ken . . . you really don't need to . . . . there is plenty of Coleman discussed here, if it fits the bill of being stove related, then it's welcome. Cheers
Hello, Checkvalves should be replaced when it will not seal anymore. Give the stove several pumps and put finger over the hole. If the stem rises then the valve is leaking. Sometimes a spray of carb cleaner in the pump shaft and letting it sit for a few minutes, empty it out and picking at it with a long (not too sharp) tool and sometimes it will clean the checkvalve enough to seal again. Be careful using the carb cleaner, if it gets on the fount it can mess up the paint or leave marks on the nickel. Since you took out the checkvalve let it soak in a cup with carb cleaner. Most Coleman lanterns and stove checkvalves are the same, although I'm not sure of the size of the 530 stove. Mike
A stove or lantern can still operate on a leaky checkvalve--once you turn and lock the valve stem it closes it and air usually does not leak out anymore. I like to change my checkvalves on all my lanterns and stoves if they leak and cannot be repaired. Mike
Mike You wrote that " I like to change my checkvalves on all my lanterns and stoves if they leak and cannot be repaired. " This brings back the questions 1. How many different sizes have you seen ? 2. Do stoves have the same NRV as lanterns ? 3. How do you repair them ? A snort of penetrating oil, or what . Also, it has been stated that there is a difference between Canadian and US manufacturers, I wonder what the difference is ? Thanks, Ken H. Thanks, Ken H.
Hi Ken, I do know that the Peak 1 Coleman 222 lantern has a smaller checkvalve than regular sized lanterns and it's possible that the 530 has a smaller one as well. If fact, it's possible that the Coleman 400 and 442 stoves have smaller sized checkvalves like the 530 and 222 lantern. I'm mostly a Coleman lantern collector, but am starting to build my stove collection as well. The Coleman 500, 501 and 502 stoves and the suitcase style stoves have the same size checkvalve as most older model Coleman lanterns. I don't dabble too much with the newer lanterns (90's and up), so I don't know if the checkvalve sizes differ from the older Colemans. Over time in a check valve the check ball can become corroded and pitted and it won't seal anymore. I suppose one can pry open the little feet and replace the old check ball, but it does seem to be a lot of work. Other times when I've been successful with the carb cleaner it is because the ball is stuck due to fuel, debri or whatever else and the carb cleaner cleans things right up. The only Canadian model I have is the 222 lantern. I can't help there. I hope I have been of some help. Mike
