RTI RTI P3 leak in barrel ?

[dye29]

hi all so I have a RTI P3 and started leaking slowly down the barrel so I changed the ring inside breech block , new valve seat and oring also new valve but when ive installed the air gushes out of barrel now . so I reordered another valve and seat and new orings but same again why is this please .
I just can't get this to seal ok now any tips as all is new .

 

[Carl4E]

It has an air assisted valve. Mine was doing the same thing so I removed the valve and found the spring inside was in several pieces. I got a new spring from AOA after about 4 weeks.

 

[dye29]

hi yes all spring looks fine , ive since tried 3 new valves and seats still can't get it to keep air in any ideas please im really stuck now and Rti don't want to know .

 

[STEVEY]

hi yes all spring looks fine , ive since tried 3 new valves and seats still can't get it to keep air in any ideas please im really stuck now and Rti don't want to know .

Did you ever find the fix for your P-3. My P-3 is doing the same thing. I have about 300 shots through the gun.

 

[KatoKevin454]

Have you tried cocking the gun before filling with air, could be the hammer resting on the poppet shaft.

 

[CoyoteGod]

Have you tried cocking the gun before filling with air, could be the hammer resting on the poppet shaft.

Can you go into this thought a little deeper? Cock the P-3 then fill to 300B and then release hammer manually or dry fire? Does this just need to be done once for his gun or every time? Cool trick just trying to learn. Thank you.

 

[STEVEY]

I tried that ,I also brought my reg down to 0 then slowly brought it up. Once I get to 50 bar, air can be heard coming out the barrel at both ends.

 

[cmatera]

Sounds like a valve issue

 

[Barnamwam]

I would hope that Rok at RTI can help you. Contact him from the RTI web page
He will likely want photos and a description of the problem.

Mike

 

[STEVEY]

Rok reached out to me. He is traveling but will touch base with me as soon as he is back. I post what I find out once repaired.

 

[TimDpcpSniper]

The actual housing for the valve comes out if you undo a little grubscrew, mine had slight machine marks in it changed housing, the inner oring, valve seat, and complete assisted valve and has been perfect for over a year now with many thousands of pellets down range

 

[KatoKevin454]

Can you go into this thought a little deeper? Cock the P-3 then fill to 300B and then release hammer manually or dry fire? Does this just need to be done once for his gun or every time? Cool trick just trying to learn. Thank you.

Yes, On many PCP rifles, if the hammer is "not cocked", they will leak air through the poppet valve and through the barrel, the poppet valve is the main Valve that holds the air back from the barrel chamber, if the hammer is not cocked and resting on the poppet shaft, it might have enough spring tension to hold the Poppet valve open slightly, by cocking the hammer releases the tension on the Poppet shaft and allows the Valve to close allowing the air to be held back filling the guns air cylinder, you can then release the hammer manually by pulling the cocking mechanism back holding it while pulling the trigger and slowly moving the cocking mechanism back to the the closed breach position,
this is only needed when the gun is empty of air pressure,
as I said this happens to many other PCP rifles and is common, backing off the hammer spring tension can reduce this from occurring, but may affect the power output of the gun, tuning the regulator pressure higher may compensate for any power loss.