To be honest, the reg is probably the hardest part of the gun to work on. Even on a recent re-seal I always replace any 'o' rings I come across as a matter of routine. I am just building another Impact from parts and have pulled it down to every component part that has an "o" ring....it's cheap insurance. That dowty washer is probably one of the only ones I have rarely replaced. Having gone to the effort of finding thr correct size, I probably have 49 of the 50 I bought still in the box.
Yeeeees, Now its tight.
It wasn't the washer. It was the Ø2x1 oring for the brass cavity bore plug underneath.
As soon as I replaced it it stopped leaking...........from the tube. But found yet another leakage so I hosed the gun with GL4 leakage spray.
and the other Ø2x1 oring for the plug on the back side of the pistol grip was also leaking. luckily I bought 4 orings.
Both 2x1 orings and also the cavity oring in the regulator The difficult bastard deep down. All of them were hard like sun burnt plastic. Had to crush them to remove. They never become like that in hydraulics ........I'm guessing hydrolys occurs with high air pressure and age.
Probably going to find more similar in the future on the pressure side before regulator
This was my third regulator service, even distributed since 2017. first two times it was extrusion of the valve piston seal. And this last one was aging of the cavity oring (didnt change that bastard the first two times)
Also my pump broke exactly the same time. Its difficult to troubleshoot when 3things occurs at the same time. I almost thougt I had become retarded or something
Thanks from Sweden
Before the setup was 100bar and 850fps.
Now I think Im gonna tune it to same speed because that was the sweet spot, but this time with 115-125 bar and less hammer
