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Old 02-26-2012, 08:59 AM   #7671 (permalink)
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His thumper is a freak of nature dude.
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Old 02-26-2012, 09:47 AM   #7672 (permalink)
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Mine works fine, but reading this thread makes me wonder if it should have stayed Blight.
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Old 02-26-2012, 12:12 PM   #7673 (permalink)
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Okay guys so I sprung a leak yesterday. It would only leak after a shot then when I recocked the leak would stop. I tried putting a little vaseline through it but no change. I disassembled and seen I had a cut oring on the piston, I think it was the one closest to the front. After I replaced the oring (from an old vice kit I had) I dabbed a small amount of vaseline on the piston orings and a little on the bolt oring. I reassembled everything and now the gun shoots great. I also noticed that the chuffing sound is a lot less than it was before. I can barely hear it now. Overall the gun seems to go so much smoother now. And again this thing shoots so freakin straight! I love it.
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Old 02-26-2012, 02:39 PM   #7674 (permalink)
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Can Metadyne beadblast my Thumper? I gots $$$
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Old 02-26-2012, 04:09 PM   #7675 (permalink)
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So I finally got to play with mine yesterday in the field. To be fair, it wasnt the best weather, just after a snow storm, the temperature was about -5C and I was running on 4oz CO2 (didn't have a bottom line setup). It feels awesome in my hand. I never want to pump the "conventional" way again. I noticed 1 strange thing. Although I could hear no leaks, if I cocked it and waited a good 5 minutes and then tried to take a shot, nothing happened. I had to re-cock again, making me think there's a tiny leak somewhere. I got to play 3 good games with it but it was freezing up bad if I shot fast (again probably the air source combined with the cold temps). Then i left it with someone to go clean up and they said it just dumped all the air. im thinking it was held at an angle and some liquid made its way inside the gun. I'll know better tonight when i take it apart.
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With all the drama, whining, superiority complex, and "you can't play here newbie" attitude I wonder if scenario paintball is attempting to take a lesson from tournament paintball on how to decrease interest.
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I don't particularly have any respect for players using a pump gun.
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Old 02-27-2012, 02:12 PM   #7676 (permalink)
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Just installed my V3 piston last night ... my V1 wasn't bent at the threads like others ... the bend was at the first oring boss where it necked down.

I'm not sure if it's been clarified, but I have seen reference to the 'setscrew' on the side of the main body ... this is not a setscrew per se, it's more a stop screw. When replacing the regulator piston, insert it until it's flush with the front of the body, then push it back about 1/8" (if you look into the hole the screw goes in, you'll see where the piston needs to be), then replace that screw and snug it up (it seals on an o-ring and doesn't need to be monkey-fisted in). It's purpose is to stop the reg piston from travelling too far, and when properly assembled, it should stop ~1/8" from flush with the front face of the main block. I just kept seeing reference to having it (the reg piston) flush or protruding out when installing the set screw ... which would pin the reg's piston in place and eliminate the ability to adjust velocity (if the marker works at all).
Maybe I was just reading the info wrong but there seemed to be some confusion about how it goes together. I'm no expert but the looking at the design it's fairly self explanitory.
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Old 02-28-2012, 01:19 PM   #7677 (permalink)
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ok so since getting it back with the new upgrades, i am going to try and do the external reg to adjust input pressure and try and keep the internal reg turned up for hpa. i know someone on here said they shimmed their internal reg with 2 small washers and kept it toward the max then adjusted the velocity with an external reg. i think what i will try and do is get the external reg sweet spotted which will be time consuming since i am using a stock WGP older reg with internal adjustment, then see how it functions and whether i should use the internal for velocity adjustment. i am just hoping the gun gets to field speed with hpa since it was having trouble on it's own doing that with stock internals. i know as you turn the internal velocity up the pump stroke turns to crap and the marker really doesn't like to work. i messed with it to test for leaks with co2 and i am sure it is shooting hot. got to get my tanks filled this weekend and see what happens.

i may also cut off the rubber detent since i don't think it does much. mine feels really hard and i think it is causing some breaks with really brittle paint. tight bore barrels are going to keep it from going forward anyways.
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Old 02-28-2012, 04:10 PM   #7678 (permalink)
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i may also cut off the rubber detent since i don't think it does much. mine feels really hard and i think it is causing some breaks with really brittle paint. tight bore barrels are going to keep it from going forward anyways.
all of it sounds good, xcept where the detente is concerned.
When loaded and awaiting a trigger pull?, the detente is under the barrel.
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THE-SHOOTIST Anyone chubbin' like me for this?
mailmanmike Since Monday! That's more than 4 hours though, so according to those cialis ads I should see my doctor.
tlane77 I think for a non-chemical chubby it's 6 hours before its time to see a doctor. So you should be good for another couple hours.
splattttttt I wasn't goin to google "chubbin" because I assumed it had to do with fat. The lard type, not the fun stuff. But what ever feelings Jeff's experiencing, then they must be of the fun like stuff...
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Old 02-28-2012, 07:03 PM   #7679 (permalink)
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@ LS... By now, you must have chosen to upgrade your Thumper with the latest piston and hammer also. Or if you haven't? There must be something terribly wrong with the rest of us LOL.
I actually hadn't for a long time, I was still using the V1 piston when he went to the stronger aluminum, then mild steel versions of the piston. I picked up the latest version of the piston just recently, and only then did I have problems with the V1 (maybe it got jealous?)

Brian also told me that some of the hammers are fine the way they are, and I believe mine was one of those, but I went ahead and had him put the new one in it. I didn't have any velocity changes going to the new hammer, it was still shooting ~245 +/- 3FPS. It did make the pump stroke smoother, and I definitely recommend it, even if you aren't having problems with the hammer.

So, for a long time, no, I hadn't upgraded mine, just to see how long I could make it run, and run it did.

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His thumper is a freak of nature dude.
I like to think so

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Originally Posted by rick_516 View Post
I dabbed a small amount of vaseline on the piston orings and a little on the bolt oring. I reassembled everything and now the gun shoots great.
I recommend doing this after each day of play, that's what's kept mine running well. Or even a day or so before going out to play again.

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all of it sounds good, xcept where the detente is concerned.
When loaded and awaiting a trigger pull?, the detente is under the barrel.
QTF
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Old 02-28-2012, 08:24 PM   #7680 (permalink)
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Just got an e-mail from Metadyne:
  • Replaced hammer with steel hammer
  • Replaced old piston with V-3 piston
  • Lubed marker with MagnaLube G
(MagnaLube G is the superior lube recommended by Metadyne Industries although Vaseline is still ok) Magnalube, Inc. - Industrial Grease and Lubricants Manufacturer for Bearings, Seals, Valves, Gears, and Many Other Applications

Woot! I should get it by the end of this week. But has anyone used MagnaLube before? Depending how she runs, I may have to pick up a tube.
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