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Old 01-10-2012, 08:20 PM   #1 (permalink)
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PGP2 Rebuild Issues

Hi guys, new to posting on this forum although I've been visiting it for awhile.

Ok, I have a customers PGP2, when it came to me it had a ton of issues such as, firing randomly, leaking co2, shooting very low speed, and so on. When I tore it down (with help from this forum) I found that the pin in the valve was broke in two and it needed orings of course. I ordered new parts from Palmers for the valve and such, rebuilt it and now the only issue is the low velocity. Any ideas/suggestions on this part? I have played with the spring in the adjuster (but I'll still take any suggestions) and also the tubes on it are as clean as a whistle and lubed.

Thanks for the help guys
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Old 01-10-2012, 10:31 PM   #2 (permalink)
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Paintball to barrel bore match? How much light around ball? Rear velocity adjuster on main spring?
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Old 01-11-2012, 08:07 AM   #3 (permalink)
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Good match on the bore size and yes there is an RVA. I should also mention that it won't pierce a new 12g unless the RVA is almost all the way in.
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Old 01-11-2012, 04:24 PM   #4 (permalink)
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Sounds like a weak main spring. Have you tried adding a ball bearing? Spring, Hammer, Pistol [SHER016] - $4.00 : Palmers Pursuit Shop, Where Custom Still Means Something
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Old 01-11-2012, 06:42 PM   #5 (permalink)
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I remember hearing some folks had issues where the RVA assembly screws too far into the body, interfering with the hammer. Try backing the RVA assembly (not just the rva screw) out slightly.
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Old 01-11-2012, 08:23 PM   #6 (permalink)
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Quote:
Originally Posted by russc View Post
I remember hearing some folks had issues where the RVA assembly screws too far into the body, interfering with the hammer. Try backing the RVA assembly (not just the rva screw) out slightly.
I had this problem. Turned it out (about) one turn and the problem was solved.
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Old 01-11-2012, 11:02 PM   #7 (permalink)
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Over compressing the main spring?
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Last edited by funsi00; 01-11-2012 at 11:03 PM. Reason: spelling
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Old 01-11-2012, 11:42 PM   #8 (permalink)
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Does the sear click twice when you cock it or just once?
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Old 01-12-2012, 02:01 AM   #9 (permalink)
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Use a weaker valve spring, cut a cocker/nelson valve spring down to the right length.

Try backing the RVA out one turn as previously stated.

Make sure the cartridge valve exhaust pot is pointing up.

Just some ideas...
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Old 01-12-2012, 06:31 PM   #10 (permalink)
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Hey guys I appreciate all the feed back, hopefully within the next couple of days I can get back in the shop and give some of these things a try. I'll let you know how I make out. Thanks for all the help so far.
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