Don't know when they started putting bike valves and plastic down the tanks of stoves but... Someone explain this to me please. Photo shows the pick up thingo for the Coleman reacently proccured. No control now just on and off. burning a bit red too. Photo shows both sides of the grey "prick up tube thingo" Top pen shows a squareish looking oriface. Bottom pen a smaller oriface. I presume the small one feeds the conrtol bike valve with fuel. And the top feeds air into the valve on start up. But there seems to be no valve or whatever in there so stop the flow of air so whats it doing there?? Do I plug it up with??? and things be right with the world again?? Please explain it to me some one. Was going good but then maybe cleaned the muck out of itself or something. Thanks Coleman users Barra #-o
Thats exactly how my dual fuel lantern looks , I paid hell getting the control valve back together. Also I couldnt figure it mixing air at all. And called coleman. They told me the gas generator tip fan sprays in a cone pattern cold. And air does not mix like the old ones with the flip up valve on startup. After it warms up quickly its gas turns to vapor. Needless to say I dont know the operation of the square vent. And assumed mine was working . After I replaced the generator and it worked fine.
Hey, Guys, We had a discussion about all this, a while back, and the concensus was, if I recall correctly, that Coleman was "cheaping out" by using that bike valve!! Isn't that called a "schader", or "schrager" valve? It was further noted that Coleman had tried this once before, had disasterous results, and went back to their tried and true methods of regulation!! I have exactly ONE Coleman lantern that uses this "new" system, and I will not fire it up anymore! I'd rather use the old system which will still be working in another 50 years, rather than an "el cheapo" system that may well go South on me at the drop of a hat, or the melting of a tiny bit of rubber!!! I'll have to check out my own Feather 442, and if it has this system, it's now officially retired from service, along with any other Coleman products which I find use this crappy system! The old Model 400 stoves were real workhorses, and my original one is still working even though it's many, many years old. No problems, no troubles, and no hassles. Why did Coleman try to "fix" something that was NOT broken???!!! I blame the young accounting-types, who saw a way to save money, and took it....... piss on 'em!!!! Take care, and God Bless! Every Good Wish, Doc
Er, that would be the fuel and air tube, Bruce... I'm a little familiar with these in Coleman lanterns but I assume the same principles apply to stoves. The lower orifice feeds fuel to the burner. The upper orifice takes air (and fuel vapour) from the top of the tank to the burner. There seems to be two distinct ways these operate:- In most Coleman lanterns where you open the valve a quarter of a turn for lighting, in that position fuel and air from the tank is being burned i.e. both orifices are open. Once the lantern's burning steadily, you open the valve fully and in that position, the air orifice is closed so only fuel leaves the tank. However, in some lanterns e.g. later 226 models, fuel and air from the tank is being burned all the time i.e. the tank air orifice isn't closed during normal running. This means that these lanterns lose pressure much more quickly and consequently need to be pumped up at frequent intervals. I haven't a clue why someone thought this was a good idea... As Doc says, some Colemans are fitted with a Schrader tyre valve. I think the Coleman 275 lantern (generally known as the "Coleman turd" - and not only on account of it's sh*tty brown colour, either ) was the first to be so-fitted. A Coleman turd (left) and miniturdette, pictured earlier... No doubt someone will correct me if I'm wrong with any of the above - the miniturdette (Coleman 222) has at least one fan hereabouts...
Hey, David, Yep, you're 100% correct, I love my little "Mini-turd"!!! But, I had no idea that it actually had that same valve in it! So, as soon as I finish sending this, I'm going to smash the glass, beat the lantern flat, with a large hammer, and toss it in the skip! That should teach it....... In truth, my little 222 has never so much as farted in all the years I've owned it. Starts easily, puts out a wonderful light, is very quiet, and requires only minimal pumping. The newer version, the Exponent, is not near as wonderful. It starts OK, but not as well, the light from it is not near as bright, with a sort of "cast" to it, it is MUCH louder, and also needs a maddening amount pumping, to keep putting out light, otherwise the mantles just faaaaaddddddeeeee into limp, worthless, nothing!!!! Just judging from how the two work, side-by-side, I would never have guessed that the pair had the same "guts", and still find it rather hard to believe, actually. In any case, the 222 has more than earned my trust, whilst the Exponent has earned, well, not much of anything, other than a place on the shelf!! Take care, and God Bless! Every Good Wish, Doc
I seems to me there was a quite a discussion over othe oldtown coleman sight about upgrade the coleman shrader valve units about a year ago . It might be worth a look , i believe they had come up with a solution to this problem.One of the fellows out of Vancouver B.C. is a big fan of the famed 275 turd and he was the one working on them.
Thanks my turds silver made in 10 -04 apparently Thanks for the good oil going to rummage around the coleman site to see what I can dig up. THought they were all brown put it down. Tricky buggas got new spray can and fooled me. My initial thoughts are that the air tubey thing forms a venturi effect and picks up a regulated amount of fuel. The wire in the generator works as a flow control vavle thourgh the nipple as well as a pricker. Obviously could be way off the mark Nothing new here. The shrader vavle on and off. Timing of the wire retractiion and valve initiation and all that wonderfull stuff. If and when I find a new gen it may cure all ails but the redding of the flame is probably dure to partial closer of the fuel orfiace. Something like that maybe. Off to get edumecated. Barra
I am not a engineer but I understand the Schrader valve is one of those mechanical wonders that has stood the test of time. It is not just used on car tires (which are more likely to kill me than my stoves) but in the fuel system of some engines. My complaint with the newer Colemans is that, because I like messing with the levers and valves when I use my stove or lantern, there is one less contraption needing my attention.
