Boundary Waters Quetico Forum :: Gear Forum :: Is there a Coleman 508 mechanic in the house?
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HighPlainsDrifter |
I have 2 Coleman 508 stoves (Sportster II's). These were the style of stoves having 2 valves. One valve is for the gas supply (on/off). the other valve is to adjust the flame and for cleaning. They were made in 1988 and 1989. I bought new generators through OldTownYucca. They are original Coleman parts ( http://www.oldtownyucca.com/coleman/) I replaced the generator on the 1989 stove. After replacement, I found I could not throttle the flame down for a very low simmer. Before the replacement, the stove was temperamental but controllable. The stove burns hot and clean but will not throttle down. Anyone have a clue about what might be going on? In the 2 photos, the 1989 stove (new generator) is on left and 1988 stove on right. Both have been throttled down to the lowest flame. |
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wetcanoedog |
my best guess is that the tiny hook that connects the controling wire inside the generator is not attached to the lever..??.. |
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Rapid Runner |
John LeBlanc philmontjohn@yahoo.com http://www.lns.cornell.edu/~seb/philmont-coleman.html he helped me out. hope he can help you. |
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HighPlainsDrifter |
WCD my thoughts also. I checked that. The controlling wire does pass in and out of the orifice when I work the lever. Also the flame will pick up when I move the lever to High. It will not get any lower than that shown in the picture. I also tried exchanging the orifice on the new generator with that from the old. That had no effect |
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HighPlainsDrifter |
Rapid Runner Welcome aboard Thank you for the suggestion (and made on your first post too?) |
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HighPlainsDrifter |
Full flame is not a problem on either stove. The simmer setting is. I use a "BakePacker" for omelets, breads, biscuits, and chocolate cake. With that cooking method I need the "simmer flame" to maintain a very low boil for 20-30 minutes. For the above pictures, both stoves were fully heated up. Both stoves had the gas valve on full. Both stoves were adjusted to their lowest flame and the pictures were taken. When turned to high both stoves will roar and the flames look the same (nice clean blue and uniform) Can I turn down the main on/off valve? Yes. I tried that, but the setting is very "iffy" and it looks like the stove will die. Modification of the generator? Maybe. I have another generator and I might try that this weekend. |
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Rapid Runner |
I have been browsing for ideas for my next entry in May 2009. Soaking up useful information on gear and tactics, happened upon the thread and got post happy. That generator looks pretty simple i am sure you could Mod it to "throttle it down" fairly easy to make the amount of gas flowing to the burner to be less than normal. |
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Rapid Runner |
Do you have a fuel valve and a generator valve? Do you have the fuel valve wide open and the generator valve turned down all the way? Have you tried adjusting your fuel valve with your generator valve to get a "simmer"? |
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Rapid Runner |
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Bannock |
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bdavid1157 |
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cmk033 |
Try tightening the nut little at a time and compare the flame sizes at simmer. Let us know how that works. |
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Rapid Runner |
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