RTI RTI P3 slow leak

Hi all,

My P3 was losing air overnight with the reg and bottle equalizing and steadily dropping.

I bled the air, disassembled the reg, polished the washers, greased the o-rings, reassembled and filled it up. Shot a few mags through to settle it. Balanced reg/hs. Works awesome - 5.3 spread, 1.7 sd!

Felt pretty good, so I filled to 250bar and watched it.

In the past 12 hours it has held the reg pressure steady (great improvement, it used to creep up by 15 bar then dump air with the bottle) but the bottle pressure has dropped by about 10-15 bar.

For those who have worked on RTI’s any obvious places to look? I did notice that there is a little more noise coming from the block, could the o-ring on the screw covering the area above the transfer port?

Thanks in advance, I love the resources in this forum. Combed through a lot of posts, but forgive me if I missed one that addresses this issue.
 
I've not had to do more than pull the barrel on mine so can't help with leaks yet. This guy had several vids on the P-3 one of which dealt with where to look for leaks but looks like he's moved them to a Patreon or something? This one still shows the workings and part placement in the rear block so may be of some help.
Thanks for sharing. I devoured all Gregory’s videos before the gun arrived. I noticed that he hasn’t done the full break down of the P3 like he did with the previous models.

I think with the Mora coming out the P3 became the middle child of the RTI lineup. But, Michael Jordan was also the middle child,..
 
Thanks for sharing. I devoured all Gregory’s videos before the gun arrived. I noticed that he hasn’t done the full break down of the P3 like he did with the previous models.

I think with the Mora coming out the P3 became the middle child of the RTI lineup. But, Michael Jordan was also the middle child,..
He did have a full series on the P-3 just like the others. I haven't looked at his video list in a while and was taken aback by how much content isn't there now.