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Old 04-10-2013, 09:39 PM   #1 (permalink)
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Modifying regulator piston for level 10

As per the level 10 teching thread:

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Level 10 bolts require a higher operating pressure to work.

The original regulator piston was set to vent at a pressure that would fire too hot for a level 7 bolt. Since the level 10 bolt requires a higher pressure, the venting pressure of the original regulator piston is too low. You can either adjust the venting pressure if you have a vise and some wood, or you can buy a new regulator piston assembly from AGD or Tunamart.
I was curious if anyone could tell me how to adjust the regulator piston assembly for higher venting pressure. I have full machine shop access I just don't know what needs to be done to modify it for higher pressures for the level 10. Could anyone give me a basic rundown? If it matters it is for an RT pro valve.
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Old 04-10-2013, 10:24 PM   #2 (permalink)
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First, figure out what you need to set it at. It's around here or on AO somewhere. If you have a newer piston somewhere, it should be on the face of the piston.

Then you need a setup with a high pressure reg and an accurate (test) gauge. You run the pressure up until the seal lifts. Then you tighten the set screw in the back a little until the pressure that it lifts at matches the set pressure. There's a thread about taking them apart (can't search right now). The biggest problem may be some loctite and getting a grip on the piston. The seal is urethane iirc, so not too much heat.
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Old 04-11-2013, 05:24 AM   #3 (permalink)
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Just buy a new piston, they are not to be torn apart and messed with, don't go killing yourself. That being said, if your not careful and no not what you're doing, you'll end up destroying the piston anyways.
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Last edited by Ando; 04-11-2013 at 05:31 AM.
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Old 04-11-2013, 12:58 PM   #4 (permalink)
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Originally Posted by Ando View Post
Just buy a new piston, they are not to be torn apart and messed with, don't go killing yourself. That being said, if your not careful and no not what you're doing, you'll end up destroying the piston anyways.
QFT. They're $20 + shipping IIRC.
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Old 04-11-2013, 02:27 PM   #5 (permalink)
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Quote:
Originally Posted by Ando View Post
Just buy a new piston, they are not to be torn apart and messed with, don't go killing yourself. That being said, if your not careful and no not what you're doing, you'll end up destroying the piston anyways.
Agreed. Also I wouldnt want to be shot by paint coming from a Mag that seems ok for the field but ends up shooting random high velocities.
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