Check Valve Tool

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colemanchris

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Registered: 12/13/13
Posts: 3
Reply with quote  #1 
I recently bought a 425f Coleman stove off eBay when i got it it pumped hard with no generator output. I removed the plunger from the pump and found someone had painted inside of it. I tried removing the check valve with a large screwdriver but it was very tight and slipped (bad idea on my part) -

Anyone have any thoughts or advise I would appreciate it
colemanchris

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Registered: 12/13/13
Posts: 3
Reply with quote  #2 
I should add I have removed the generator and fuel cap and still had it pump hard with no output
dpatten

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Registered: 01/23/13
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Reply with quote  #3 
There is a tool that you can purchase that makes removing the check valve almost trivial.

Mike at OCP has them, but you can find them on eBay too.

http://www.oldcolemanparts.com/product.php?productid=2179&cat=&page=1

Another trick is to use a large screwdriver with a blade the same thickness as the slot in the checkvalve, I use a ground down wood chisel.  Push the tank into a corner (usually a friend helps here )and use the mechanical advantage that gives you to get it out.

I recommend a tool though..

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dbosch

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Registered: 03/21/09
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Reply with quote  #4 
Chris-
the pump cylinder being painted is no problem, but has the valve itself at the bottom been painted?  If not, try an overnight soak with solvent then see if you can blow out any debris from the bottom of the valve.  You will need an air nozzle with a long tube that will poke directly at the check valve.  If there is a lot of debris in the valve you can try to slip a wire down the tube and try to break up the debris and then soak and blow out.  If that doesn't work, then the valve has to be removed which typically takes a special tool.  A large screwdriver will work but it must fit in the valve tightly and the full width.

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kb0hae

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Reply with quote  #5 
I would try soaking the check valve with carb cleaner, being careful not to get it on the paint outside the pump tube.  Let it sit for a while, then dump it out.  Try pumping again.  if it doesn't work try soaking a few more times.  As a last resort, buy a check valve removal tool, or get the help of someone local who has one.  Sometimes they can be cleaned up when removed, sometimes they need to be replaced.
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Reply with quote  #6 
if your really into gpa and plan on collecting more i recommend just getting the tool. Its 35 bucks which is a little pricey but its built like a tank and will last a lifetime. I can pull a check valve clean it and reinstall it in under 10 minutes.
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colemanchris

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Registered: 12/13/13
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Reply with quote  #7 
thank you all for your advise greatly appreciated
desmobob

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Reply with quote  #8 
A soak in carb cleaner fixed the only check valve problem I've had.  I wanted to use lacquer thinner but didn't have any so I gave it a good dose of carb cleaner and let it sit.  Later, I put a bunch more in the tube and pushed it through with the pump.  Voila!  Perfectly operating check valve!  As a bonus, the carb cleaner really cleaned up that leather pump washer.  It took out all the oil and crud and it looked like new, ready for a fresh oil soak.

Take it easy,
Bob

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Reply with quote  #9 
The check valve tool is money well spent, it'll have ya removing check valves just because you can!
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Bob
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curtludwig

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Registered: 05/28/09
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Reply with quote  #10 
It only takes the frustration of one stripped check valve to pay for the tool...

That said if theres no paint on the CV I'd try the chemical techniques before I worried about the tool.
Jim_l

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Registered: 12/17/08
Posts: 7,339
Reply with quote  #11 
If you have to, you can remove the CV with an easyout.
CV's don't cost that much to replace.
If you're going to be repairing many lanterns or stoves though, the CV tool is a good idea/investment.

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