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Old 12-07-2006, 06:24 PM   #1 (permalink)
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My VM is a pain in the ***...

The thing blows a cup seal every fifty shots? Is there something wrong with the valves on these things?

I know the most recent one was using straight liquid through it, but it took 10 shots for it to start leaking again.

Anyone have any insight? Am I not installing the valve correctly?
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Old 12-07-2006, 06:27 PM   #2 (permalink)
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Have you changed the valve o-rings at all yet? Are you using the correct cupseal? Is the cupseal shaft sliding smoothly in the valve body?
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Old 12-07-2006, 06:31 PM   #3 (permalink)
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I haven't changed the valve body o-rings, the cup seal is a little short, and it's from a Raptor, it sealed, but it was a little short, though I got it up to field velocity running a siphon tank. It slides plenty smooth in the valve body.
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Old 12-07-2006, 06:32 PM   #4 (permalink)
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The cupseal might be too short and getting hung up on the brass insert on the valve body.Also if the valve body o-rings are worn it'll leak around the valve.
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Old 12-07-2006, 06:54 PM   #5 (permalink)
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Try a cocker cupseal instead.
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Old 12-07-2006, 06:59 PM   #6 (permalink)
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Cocker cup seals are just as big a pain in the *** to come by locally. The three nearest paintball shops don't carry parts for guns made prior to 2003 anymore.
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Love how the thread got de-railed to incestuous relations and soldering brass tubes together. Classic MCB at it's finest.
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Old 12-07-2006, 07:03 PM   #7 (permalink)
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Did you try PW at all Murph? He might just have what you need
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Old 12-07-2006, 07:04 PM   #8 (permalink)
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Not yet.
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Love how the thread got de-railed to incestuous relations and soldering brass tubes together. Classic MCB at it's finest.
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I'm no hippie, but I do lack any sense of style.
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Old 12-07-2006, 07:07 PM   #9 (permalink)
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Well try PMing him then,He's almost always on
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Old 12-12-2006, 11:58 AM   #10 (permalink)
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Try to find one of the nylon exhaust valves that are around. The urethane seat of the stock ones becomes stiff from the cold liquid Co2 and tears easily.
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