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erutangis
First post and thank you all for adding me. 

I have a dear old coleman 414 powerhouse. I bought it new in about 2005 and it's seen a lot of use. My problem with it is it's leaking around the shaft that goes to the tap. It's not leaking past the threads on the nut as I've fixed that. It's bubbling past the shaft. 

Is there any way of fixing that? There are no parts in Australia for these stoves (why??) but you can buy a complete valve/generator assembly from Old Coleman Parts. That's my only idea. Will be tight on time before we go away again but that's all i've got. It's got to be fixed because I can't handle the car smelling of shellite for three weeks. 

Also it has a slight orange to the flame. I think it's probably ok, but I thought you all might know. I've cleaned the generator, manifold, and pulled the burners apart and cleaned them too. This is running on fresh coleman fuel. 

Any ideas appreciated.



coleman_small.jpg
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1hpycmpr
Welcome from Colorado!  The flame doesn’t look bad from what I have seen.  Maybe try a bit less pressure in the fount.  Does it settle down when you light the auxiliary burner?  As for the leak, try tightening the packing nut just a little bit to see if the leak stops.

Edit: I must not have seen the whole video the first time.  Watched it again and saw where you lit the auxiliary burner.  To me, it seems to be overdriving the burners.  
Mark
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zoomkat
There is usually packing around valve stems that the nut compresses to prevent the steam leakage. You probably need new or more packing.
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Mister Wilson
Welcome from Pennsylvania.  Mark has you on the right track. That nut compresses a graphite packing that squishes against the shaft creating a seal. Just a little at a time until the leak stops. 
John
H.C. Lanterns dealer
Coleman 275 Appreciation Syndicate #2001 A Turd's Odyssey
Canadian Blues #028
Coleman Slant Saver #31
Looking for 6-56 and 6-58 Birthday lanterns.
There's been an alarming increase in the number of things I know nothing about.
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erutangis
All, thanks for the prompt replies. It's definitely not leaking past the threads.. it's leaking out the shaft. See I put some ptfe tape around the nut just to confirm it wasn't coming from the threads. You can actually see a bubble forming on the shaft.

I put sealant on the threads, and tightened it to the point where it was hard to turn the knob, and then backed it off about 1/8 of a turn. ðŸ˜

As to the flame.. I think I'd be happy to run with it if I can fix the leak.
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erutangis
Welcome from Pennsylvania.  Mark has you on the right track. That nut compresses a graphite packing that squishes against the shaft creating a seal. Just a little at a time until the leak stops. 

I see, so just a little tighter on the nut. Thank you again.. I'll give it a go tonight. 

Thank you all from Australia!
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zoomkat
You might use the forum search box at the top of the page and search for "valve packing"  and similar to find many discussions on fixing stem leaks. Lots probably have pictures.
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erutangis
All,

So last night I got the special teflon tape, and tightened it all up and put it back together. It's now not leaking at all past the valve and running beautifully - except when it's turned off it's now leaking into the generator. 

I was looking at the valve last night and wondering at those grooves. Should there be an o-ring in there?

Coleman_Valve.jpg 
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Mister Wilson
No o-rings on these. I’m thinking the tapered sealing surface on the end. It looks like yours has a bit of a groove from being turned off forcefully, or just a lot of use. If that’s the case, sometimes you can carefully resurface them (there are threads addressing this). If it’s as deep as what I’m seeing, you may want a different stem if you can’t address it and you think it’s a problem. 
John
H.C. Lanterns dealer
Coleman 275 Appreciation Syndicate #2001 A Turd's Odyssey
Canadian Blues #028
Coleman Slant Saver #31
Looking for 6-56 and 6-58 Birthday lanterns.
There's been an alarming increase in the number of things I know nothing about.
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erutangis
Thank you all for your help. I gave up and just bought a new generator/valve. Hopefully that will sort it for another 10+ years!
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erutangis
Shout out to coleman parts. I ordered the generator/valve from old colemanparts and a pump. It arrived quickly to Australia, and all installed in 10 minutes and it's running like a new one. Hopefully a great deal more happy camping ahead.
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1hpycmpr
Good to hear that the stove is running well again.  Hopefully you get to use it on your holiday!
Mark
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Nightlight for Aliens
The part from oldcolemanparts, It came with new packing?

Isn't there supposed to be some kind of retainer clip / c clip like / in that first deep grove before the threads?
Coleman_Valve.jpg 
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