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Old 01-20-2010, 06:13 PM   #1 (permalink)
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Velocity Bouncing Around

Hey all,

Noticed my velocity with reballs is bouncing around in my micromag with a classic valve. Any specific reason for this? It has all new orings everywhere. Spiking velocity is due to something in the reg, so I stupidly took apart the piston today, but I put it back together properly (I think?), and screwed in the screw that holds in the piston spring and guts with teflon tape (No loctite on hand).

Did I mess up the piston by taking it apart, or is it possible that crappy sized reballs are the cause?
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Old 01-20-2010, 06:19 PM   #2 (permalink)
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What kind of spikes are we taking about? 5-15 should be normal.
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Old 01-20-2010, 06:27 PM   #3 (permalink)
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Old 01-20-2010, 06:54 PM   #4 (permalink)
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Are you referring to the velocity adjuster on the back? To the best of my knowledge, that does not need any sort of thread locker or sealer.
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Old 01-20-2010, 07:21 PM   #5 (permalink)
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No sorry, I mean the screw inside the piston. It's like a thin screw that you can stick a large allen key in. So in the brass piston body, I put the rubber plate, then the metal plate, then the spring, then the screw to hold it all in. The mag was leaking out of the velocity adjuster until I teflon taped that screw, then it stopped, but the velocity spikes are still there.

Other than the piston, I don't think anything else would cause inconsistent velocity. But I am a mag noob.
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Old 01-20-2010, 07:51 PM   #6 (permalink)
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If it's leaking out the back the pressure is too high. That hole is pressure relief.

That's a pretty big fluxuation. What kind of output does your tank have?
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Velcor is within all of us, you need not go looking for him. He sayeth, "wherever two or more of you are gathered, there shall I be." He is my solid bunker for me to hide behind from the incoming fire of mine enemies, He is the functioning regulator which keepeth my shots consistent, and He is my keen eye guiding my fire towards my hidden enemies. Yea, whosoever shall believeth in Him shall be guided by His right hand towards the flag, and whosoever denieth Him shall reside for all eternity in the Deadbox of Life.
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Old 01-20-2010, 08:40 PM   #7 (permalink)
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Its a ninja hpa tank. I suppose about 800psi output. Supposed to be fairly consistent air pressure output.

Yeah I thought it was a pressure relief hole, there is no air leakage out of it anymore, just the velocity spikes.
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Old 01-20-2010, 09:56 PM   #8 (permalink)
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Check the spring pack, it should be clean and lubed with a light grease. Oil the Valve, check it with Paint, could be the Reballs maybe?
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Old 01-20-2010, 10:00 PM   #9 (permalink)
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Thanks. I greased the spring pack today. I wiped off the old grease and put a lithium based grease on it. I've oiled all orings possible, don't know what else I could oil.
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Old 01-20-2010, 10:09 PM   #10 (permalink)
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All I can suggest is shooting some oil through the asa (non petrol based of course) and testing with paint.
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Quote:
Originally Posted by Usagi Tetsu
Velcor is within all of us, you need not go looking for him. He sayeth, "wherever two or more of you are gathered, there shall I be." He is my solid bunker for me to hide behind from the incoming fire of mine enemies, He is the functioning regulator which keepeth my shots consistent, and He is my keen eye guiding my fire towards my hidden enemies. Yea, whosoever shall believeth in Him shall be guided by His right hand towards the flag, and whosoever denieth Him shall reside for all eternity in the Deadbox of Life.
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