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Old 10-28-2006, 06:23 AM   #1 (permalink)
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Old King Cobra

Well, I just got a BE king Cobra, and it leaks down the barrel. I'm guessing that it's the valve that's not seating. The leak isn't just a small leak, it leaks a lot on the back and front of the valve. I've tried lubing, taking it apart, etc.
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Old 10-28-2006, 01:52 PM   #2 (permalink)
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Replace the Orings first off, also flip the cup seal over that might help
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Old 10-29-2006, 04:31 PM   #3 (permalink)
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Here's a picture of the valve assembly.

I found out that I do need to replace the o-rings around the valve, but I don't think that's where it was leaking the most if at all. I'm pretty sure it's on one side or the other of the cup seal pin. Might I need to replace the seal on the inside (where the pin slides into)?
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Old 10-29-2006, 04:47 PM   #4 (permalink)
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you can get new valve seal kit from scracecrow, in fact i just ordered one today

hope that helps
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Old 10-29-2006, 05:07 PM   #5 (permalink)
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Hoo-Ra! That's exactly what I needed. Thanks! I think all the seals are dead. I think there might be some hope yet! I'll order them tomarrow!
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Old 10-29-2006, 06:29 PM   #6 (permalink)
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B. E. Tips.

My kit doesn't contain the O-rings on the outside of the valve body. Suitable replacements can be found at larger hardware and plumbing stores. One thing to watch for on those is the body of the marker itself. There are several places where the body is tapped for various fasteners. Those places tend to have sharp ridges inside. Those sharp ridges nick the o-rings when the valve is installed and removed resulting in a leak. I recommend picking up a piece of wooden dowel, cutting a slit into the end and putting a bit of fine sandpaper into it. Use this to sand away the ridges inside the body. Maybe finish up with OOOO steel wool. This will save you a lot of trouble on those valve body O-rings. Avoid overtightening those fasteners in the future, if they are loose a little blue threadlocker will do the trick.

Title of this post sounds like a Nursury rhyme for paintball babies. . .

Old King Cobra
Hadly ever sober. . . : )
B.P.S.: Unit of measure for the absence of Skill
Restoration and Custom work for vintage Pump Markers.
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Old 10-29-2006, 06:45 PM   #7 (permalink)
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Well, my hardware store has quite a few o-rings, so I will look around for something for the outside of the valve. The problem was that the o-rings I think are just really old not really broken. Thanks for the help everyone. I hope I can solve the problem soon here!
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