I have not used my stove purchased early 80's since late 80's. It still had white gas in it (not much) after 25 years of not touching it. It has the rubber pump cap on the plunger and the plunger rod was still oiled. I pressurized the system (have not lit it yet) and had white gas exit the on off valve. Dismantled and noted the blue o ring which appears to be intact. I re assembled without putting the metal stay or the knob on and have been pressuring the system a few times and then turning the on off knob to determine if there is gas or pressure escaping that o ring. It now seems to hold as while it is pushed out a little due to interior pressure it is holding even without the metal catch and the knob being in. I realize a new o ring puts to rest (or should) any potential leaks am I foolish to re assemble and light it? I am not familiar with the material characteristics of an o ring ie if it "swells" in response to fuel/vapour passing by it or has re seated itself by having been removed, re inserted together with allowing vapour pass from the tank once pressurized .
I have a Peak 1 lantern and it has the same valve as your stove has and mine leaked just like yours. I first tried putting some lube on shaft because it looked like it was lubed at one time. I needed to replace O ring to get it to stop. Mine would not hold enough pressure to light. Best to not try lighting until you fix leak, we have enough wild fires already Stay safe
I have been pressurizing it all afternoon and it is holding pressure and there are no leaks of gas and no sound of air escaping..so far...will continue to test with pressure
My lantern did the same thing, held pressure with no leaks so I put a match to it and it ran fine. Repeated several times with no problems. Took it camping and it leaked!. I replaced O ring and tested several times and no leaks. I feel I have fixed the leak but this lantern will never be in my house if the power goes out. Always need to make safety first, I try not to ever turn my back to a fuel stove and never use them indoors. When I am cooking always right there anyway. Never had a problem and want to keep it that way. This is the O ring set I have that has saved ordering parts or running all over town tracking them down. Stay Safe
I believe Coleman Canada used fluorosilicon o-rings at the time. Blue coloured. I'll have to check the sizes - think 005 and 009. In any event, due for a replacement. I'll PM you later and I can mail a few out to you.
I am tempted to buy new (yes I know the 505b is a bit of a tank in comparison to MSR, primus, etc white gas stove (and I did pick up a Primus ETA lite with a 500 integrated mug as a backup) and was quite impressed by an older primus express lander that I am on the lookout for as a gas stove but there is something "comforting" about the coleman as long as it does not become an incendiary device.
And thanks to Giri back in all its glory....by the way....fired up first time following 25 years of non use.
Hi, I have a similar 505B that I am resurrecting with the same leaking o-ring on the on-off valve were you able to find the size? Also, that is a neat windscreen! Is that homemade or was that an option? Thanks Trailraat
@trailraat I can send you up some o-rings as well. I'll private message you for your address. The windscreen pictured above is from a SIGG set I think.
@trailraat @Giri That style wind screen was supplied with the Peak 1 Sigg kit and was also offered from other sellers in US when the Peak 1 stoves were sold. Came with different cut out configurations but all fit the small Coleman size burner with the '+' style stove grate. Also sold small cook/storage case at that time that will hold the skinny tank stoves.
Thanks Giri for helping me out! I put that o-ring in and fired up the stove and no leaks! It was the 009 Size Ring that I used.
Hiya, you might want to check that the rubber tubing on the pot handle isn't getting scorched by the flame of your super powerful Coleman 505B. I discovered this problem with an Optimus cook set. The gas stove was too powerful for the pot. I have a Coleman 505A, a great stove, lots of power and superb simmering control. Cheers Simon Foxxx
I just picked up a 505A for twenty dollars CAD, and was told it was always losing pressure. Checked the pump cup and it was bone dry, so I rubbed some Uncle Tommy's on it and brought back the suppleness, then decided to fire some carb cleaner at the check valve. Now I am worrying about O-rings...where can I find them around Calgary?
@BrianP On my 222a lantern fuel leaked from stem as soon as you opened it to lite. Should not be a mystery if you need new O-rings. Not sure what shipping charges are to Canada from OLD Coleman Parts. Real shame Coleman modernized the 505A had a real winner with the 505. Red on/off, black clean/light lever and excellent flame control. BTW $5 stove case different story. Sunny SoCal
Now THAT just made me hungry! This is my first experience with a 505A, and the previous owner must have really put it through the wringer. I will have to do some judicious straightening on the pot stand, it doesn't sit right and exposes the whole regulator so any pot just contacts it, making a heat sink. The burner box assembly seems to have been pushed downward at one time. At at any rate, it will be fun doing this one after just working on two and three burner stoves. Maybe OLDcoleman parts can get me what's in that pan, too.
Gasoline resistant o rings can be found in any auto parts store. You might have to ask the clerk for them but that should not be a problem. Take the part, or the whole stove, in with you so you get the right size. Llance
I have an old Coleman 505B that I used regularly until about a year ago. It's too heavy for backpacking, but it's great for picnics or car camping when I don't want to bring a lot of stuff. I just fired it up and it lit fine, but it won't hold pressure. I'd like to get a gasket set for it and will try Old Coleman Parts as per this thread, but if someone can provide a list of the o-rings used in the 505, I might be able to pick them up locally.
Got a super-fast response from Old Coleman Parts, and just ordered an o-ring set and fuel filler cap gasket for the stove. I'm looking forward to having it back in operation.
