Make sure the oring to the left in your reg pin pic actually fits over that brass piece. If it does not it is the wrong oring.
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Regulator valve pin is now placed and looks significantly better.
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I’ve also swapped the blue bumper from the Classic valve rebuilt kit with and clear one for the RT kit and replaced the spring.
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Alrighty, I’m continuing to blindly stumble along this mag rebuild, so thank you to those providing helpful tips! I’ve removed the oring and placed in what I believe is the nose of the reg housing. I really should learn what each piece is actually called….
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Aired it up and…. Still leaks. Mostly out the rear of the reg but after pulling the trigger leaks worse. I believe I had not properly headed @superman’s suggestion and switched an oring that will fit around the bottom of the crown piece on the valve stem.
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One one more little o-ring swap:
Moving the wrong o-ring on the valve pin and replacing it with the black o-ring on my on off.
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And success! Well mostly success. Still have a slight leak from the valve but marker seems to fire without issue. Thanks for all the help and hopefully my blind fumbling helps someone else in the future.Comment
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And after the brief glimmer of hope, went to shoot a couple balls and trigger is dead. It airs up and moves forward, but trigger no longer shoots or resets.
fixed - reg pressure was too low. Cranked it and would shoot but need to troubleshoot the reg leaks as I am bleeding all my air.Comment
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You'll probably need a new reg piston too, I had to replace mine after rebuilding everything else in the valve. They like to cause leaks out the back of the adjuster.
https://airgundesigns.shop/product/r...yle/#iLightbox[]/0
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The valve is designed to leak from various areas to indicate where there's a problem, so where exactly is the air leaking from?
No, the reg piston is not the same as a Classic.
The reg piston is made to vent air out the back velocity adjuster when when the valve is over pressurized. The only reason you would need to replace it is if you are chronoed correctly and air is still venting out the adjuster.
But dont forget that there is an oring that needs serviced on the reg piston, if its bad it will also leak.reg piston oring.jpgComment
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Mag was shooting 286 over the chrono. And leaks seems to be coming from around the sides of the bolt as opposed to from the adjustment hole so will look at swapping o-rings.
Update: replaced the orings and still leaks.Last edited by Cdn_Cuda; 08-24-2026, 12:32 AM.Comment
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You will have to determine exactly where the leak is coming from if you want help. Guessing where the leak is will only leave you chasing your tail. Bust out the spray bottle with soap and water or air up the marker and dunk it in water. Do whatever it takes to pinpoint the leak, that will tell us where the problem is.
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Following LukeAO’s advice, I filled out the wash in and turn out it was not leaking from the reg, but down the body. I have the wrong side o-ring in the valve body, so it was leaking down the body and not the reg, but hard to tell without the stuffing it in bucket o’ water. Swapped out to an 017 ring and the leak has gone way. Sadly almost all my air has been used up… but might find one with enough air to shoot.
I do note that that was not an o-ring that came with my rebuild kit.
Again, thanks for all the help! Hopefully be able to post a shooting video soon.Comment
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I decide to hook up my warp feed and quickly realized why AGD invented the Lvl10 bolt. I sprayed paint out of every hole when I got the RT going. So now I’m taking a good hard look at adding a Lvl10 bolt.Comment
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StaticShocked I shot about 6 balls before things turned to moosh in a spectacular fashion. Good news I am very good at taking a mag apart now.
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