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Old 11-26-2005, 01:44 PM #1
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O3X leak in chamber

Hey I have a leak in the chamber of my gun. I'm not sure what's going on. I've checked the o-rings on the bolt, all connections and all that. I'm running out of ideas. My suspicion is starting to creep towards the cupseal or valve but I have no idea how to get to those and how I would find replacements.

Any help would be greatly appreciated. Thanks.
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Old 11-26-2005, 02:19 PM #2
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Usually it's because of too much pressure. when i had my O3e that's what i ran into. try lowering your pressure first before you go deep into your gun
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Old 11-26-2005, 03:42 PM #3
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The valve isnt deep into you gun and its prolly just a oring on the valve. Don't know what you are talking about oring on the bolt though. Possibly you mean ram. First put your pressure at 300 the put your lpr in until it leaks then back it out 1/4 turn. If this doesn't stop the leak take out your ram and lpr. Slide out the valve. You have to take off the grip frame and undo a small set screw.
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Old 11-26-2005, 04:18 PM #4
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i know its not the pressure because i dont go near 300 psi. i usually set it between 270-280. i did exactly what you said g_cookie before this. the funny thing is, it worked perfectly yesterday, and the only thing i did to it afterwards was completely take it apart and relube it. i'm thinking i may have damaged the valve in this process.

to go into more detail, the air escapes out of the barrel. when i push the bolt in and out with my finger while it's aired up, it makes kind of a swooshing noise like the bolt is passing over the leak. and how do you not kno about oring on the bolt. the bolt has two orings on it... you kno.. the delrin bolt..
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Old 11-26-2005, 04:22 PM #5
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hmm, last time i check O3 bolts didn't use o-rings... what kind of bolt do you have?
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Old 11-26-2005, 04:36 PM #6
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it's the stock bolt that came with the O3X
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Old 11-26-2005, 06:09 PM #7
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I think its the valve i have an 02 and i took apart and lubed ect..then put back together and it was doing the same thing as yours(was working perfectly before). then i took out the valve, cleaned and lubed it again .. and it stopped the leak. wierd
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Old 11-26-2005, 07:11 PM #8
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i just took apart and lubed the valve about 4 times. still the same leak. i really think it's the cup seal.
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Old 11-27-2005, 02:30 PM #9
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It's most likely your Valve/Cupseal. I've had tons of guns leak out of the barrel, cockers, spyders, my bros Torid X. Every time it's the Cup seal or valve oring on the front. Take apart the entire gun, including the valve and relube the Valve o-rings with some Dow55. Put it back together and if it still leaks, then you probably need a new cupseal.
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Old 11-27-2005, 03:18 PM #10
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Actually my guess is what happened is when you put your valve back in you sliced an oring. This can easily happen on a 03 because the ram cap is threaded. It is rough on the o-rings sliding them in. So I would check that. But did you back your lpr all the way out then start over. Sometimes after lubing the lpr you may put it back together and the rear retaining screw can but screwed in further so it is pressing the spring toghether, thus raising pressure. So the normal position you have your lpr at could actually be higher than before.
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Old 11-27-2005, 05:12 PM #11
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I didn't lube the lpr because i couldn't get anything out. The screw or grub screw that is visible on the outside was backed out all the way out before I adjusted it. (by the way, this screw has a hole in it, is this normal) The lpr screw that is not visible when attached to the gun was loctited in or something. I could not adjust that screw at all.

About the valve o-rings, yea, the sound they made coming out was harsh, but I inspected them for tears and there were none.
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Old 11-27-2005, 05:28 PM #12
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Ok ya they do gob the loctite on that screw and it is normal for it to have a whole in it so no worries there. Ok when you took out you vavle did you make sure to tighten down the cupseal.
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Old 11-27-2005, 09:47 PM #13
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Tighten the cup seal? I just thought that the leak was because I had an imperfect cup seal. I was wondering how it could create a seal tho, seeing as how the seal is created by two hard objects contacting each other (kno wut i mean?) I didn't know you could tighten the cup seal. And I don't know how to either.
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Old 11-28-2005, 02:20 PM #14
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It does create a seal. Ok you have the metal stem part and then plastic tip part. You have to twist the plastic part on tighter.
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Old 12-02-2005, 05:11 PM #15
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Ok I fixed the leak. It turns out it was that the metal stem part and the plastic "doughnut", not the plastic tip, were not creating a seal.

Anyways, lots of thanks to all you guys that hepled me.
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Old 12-02-2005, 06:04 PM #16
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So what did you do get a new stem?
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Old 12-02-2005, 06:58 PM #17
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No, I kinda banged the plastic doughnut with my allen wrench so that the edges kinda turned in and were tight up against the metal stem. Then I put some lube on the stem.
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