Coleman one burner Exponent stove

[Larry Meyer]

Anybody know about these? I have had one for 5-6 years (in addition to my 40 year old two burner). The pump is erratic: can’t get a prime 90% of the time. Must I replace the whole pump assembly? It has a little rubber gasket, instead of the leather one found on the old 2 burner.

It’s now very unreliable and aggravating. Works one minute, then no prime the next.

 

[pklonowski]

Should be able to get a new o-ring at Bass Pro, Gander Mtn, Cabela's, etc.

 

[Ed Moses]

Larry,

If you don't find a new gasket try this. Squirt some fairly heavy duty, like 30 weight oil, into the pump assembly(gasket area) and it might just give you the air seal results you're after.

 

[Larry Meyer]

Soon after my first post, after an hour of messing around, it worked fine again. I've oiled it. Perhaps its a quirky problem with the check valve. Thanks for trying to help. I prefer the leather thingie on the 2 burner - it dries out but revives easily with an oiling.