PGP2 Rebuild Issues

mnomarker · 01-10-2012, 08:20 PM

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

funsi00 · 01-10-2012, 10:31 PM

Paintball to barrel bore match? How much light around ball? Rear velocity adjuster on main spring?

mnomarker · 01-11-2012, 08:07 AM

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.

funsi00 · 01-11-2012, 04:24 PM

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

russc · 01-11-2012, 06:42 PM

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.

Chaz · 01-11-2012, 08:23 PM

Quote:

Originally Posted by russc

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.

funsi00 · 01-11-2012, 11:02 PM

Over compressing the main spring?

MaD · 01-11-2012, 11:42 PM

Does the sear click twice when you cock it or just once?

the_chemist · 01-12-2012, 02:01 AM

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...

mnomarker · 01-12-2012, 06:31 PM

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.

01-10-2012, 08:20 PM	#1 (permalink)
mnomarker Experienced air smith Join Date: Jan 2012 Location: Nova Scotia, Canada	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

01-10-2012, 10:31 PM	#2 (permalink)
funsi00 MCB Member Join Date: Jul 2006 Location: Cleveland, Ohio	Paintball to barrel bore match? How much light around ball? Rear velocity adjuster on main spring? __________________ My feedback on MCB : http://www.mcarterbrown.com/forums/f...-feedback.html Brass Mafia - team status S4

01-11-2012, 04:24 PM	#4 (permalink)
funsi00 MCB Member Join Date: Jul 2006 Location: Cleveland, Ohio	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 __________________ My feedback on MCB : http://www.mcarterbrown.com/forums/f...-feedback.html Brass Mafia - team status S4

01-11-2012, 11:02 PM	#7 (permalink)
funsi00 MCB Member Join Date: Jul 2006 Location: Cleveland, Ohio	Over compressing the main spring? __________________ My feedback on MCB : http://www.mcarterbrown.com/forums/f...-feedback.html Brass Mafia - team status S4 Last edited by funsi00; 01-11-2012 at 11:03 PM. Reason: spelling

01-11-2012, 11:42 PM	#8 (permalink)
MaD MCB Member Join Date: Oct 2007 Location: A2, Michigan	Does the sear click twice when you cock it or just once? __________________ -= MaD =- Sheridan Seals and Parts Feedback DIY Paintball Stuff! Note: While I would love to take credit for his work, I am not associated with Mad Customs! You can contact BigMatt-MadCustoms in his MCB forum

01-11-2012, 08:07 AM	#3 (permalink)
mnomarker Experienced air smith Join Date: Jan 2012 Location: Nova Scotia, Canada	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.

01-12-2012, 02:01 AM	#9 (permalink)
the_chemist Post Whore Join Date: Jan 2010 Location: San Fran now	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... __________________ feedback

01-12-2012, 06:31 PM	#10 (permalink)
mnomarker Experienced air smith Join Date: Jan 2012 Location: Nova Scotia, Canada	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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