Coleman stove pump - Homesteading Today
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  #1  
Old 02/14/10, 06:55 PM
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Join Date: Sep 2006
Posts: 13,900
Coleman stove pump

Ok I've got something that I haven't had before. When I pump up my Coleman stove the pressure will leak back out of the tank if I take my thumb off the pump. If I screw the valve close with my thumb on it it holes pressure.

Before I try taking anything apart anyone else had this problem and/or know what's going on?
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  #2  
Old 02/14/10, 07:48 PM
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Join Date: Jul 2006
Location: Eastern North Carolina
Posts: 33,412
Sounds like the valve is worn out.
You can buy replacement pumps and kits to rebuild them
They used to use leather washers, so it's possible you could take it out and put a little oil on it to see if it will soften up
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Last edited by Bearfootfarm; 02/14/10 at 07:51 PM.
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  #3  
Old 02/15/10, 12:31 PM
 
Join Date: Jan 2010
Location: Levittown, Bucks, Pennsylvania
Posts: 576
Try a drop or two of oil on the little hole in the chrome collar. If that does not work, buy a re-build kit.
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  #4  
Old 02/15/10, 01:41 PM
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Join Date: Jun 2002
Location: central idaho republic
Posts: 1,843
the valve is opened by turning the pump one direction and closed by turning the opposite.... adding a few drops of olive oil in the "oil here" hole will help the leathers from drying up, one or two drops at a time or take the pump out and add the oil direct to it. then once every year or two add a drop of oil and that keeps those leathers all nice and pliable.

The design is awesome, it has stood the test of time for over 50 years and old Army kitchens used a version of it only LARGER after WW2 up to the Viet Nam war [yes it was a war, people were not just "arrested"] Sail boats use a version of the pump for alcohol stoves [you can find those at old salvage yards for sale from time to time too]

For reference sake i have my dads single burner he bought in the late 1960's, 2- double burner pumpers, plus a couple of tanks that people tossed out into the garbage cause they wouldnt pump, my main camp stove is a triple burner pumper i bought used from an outfitter in 1988 when he upgraded to all propane and it was not new then, I last uesd it up in mining camp last fall...... it sits on my back porch ready for a winter power outage for cookin in the moonlight or whatever. As a kid my folks used one in the late summer-early fall to can applesauce outside to keep the heat down in the house... they are workhorses in my book.

And if you come by the old pumper lanterns, they have similar pumps and are more useful in that they will heat up a cold chicken coop once in awhile during a bad cold spell, just got to use common sense and not allow it to be able to be knocked over or fall off a nail [use a carabiner or snap latch to keep them secure] those old tools were built to last a couple lifetimes if properly cared for.

William
Idaho
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  #5  
Old 02/16/10, 07:48 AM
 
Join Date: Dec 2002
Location: East TN
Posts: 6,977
I always thought you had to screw the valve closed while keeping your thumb on the hole.
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  #6  
Old 02/16/10, 12:07 PM
 
Join Date: Dec 2008
Location: north Alabama
Posts: 10,714
Yeah, sounds like normal operation to me too? Thumb on hole, screw down, release thumb, pressure holds.
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  #7  
Old 02/16/10, 08:23 PM
 
Join Date: Jun 2009
Posts: 115
When pumping up your stove you should NOT get a constant airflow from the pump area, just a short burst as you take your thumb away from the hole (note this is before you tighten the pump plunger). If you get continuous pressure leakage it indicates the check valve is leaking or stuck open. You could pull the pump piston and clean out the check valve that is in the bottom of the cylinder with spray cleaner as in Carb cleaner and then blow dry with air.
If it continues to leak you will need to remove/replace the check valve. This is very hard to do if you don’t a have check valve removal tool. If you don’t have a tool you can use an easy out to remove it but it will destroy it. Parts are available at http://oldtownyucca.websitetoolbox.com/ The forum is also a great place to get the info you need also.

Hope this helps

Bluecometk
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