So, I was working with my buddy on his new PP750, porting etc.
I had seen in a video or read that the regulator feet port from the cylinder is so small that it takes 20 to 30 seconds for the (small plenum to refill between shots. I removed the adjuster screw and drilled the tiny wire drill size out with a drill about 30-40% bigger in diameter.
In retrospect I realize this is not something I have seen talked about much if at all. The reason I questioned doing that is that his ES went to crap, in fact the gun was acting unregulated with a steadily climbing shot string. I finally got him to take it apart yesterday and he found the large (main) reg. oring torn up and with tiny brass chips embedded in it. Obviously the reg was not cleaned thoroughly enough after reinstallation.
The oring was replaced and the drill site cleaned again of chips and reinstalled. Better but still a mess. I suspect there are chips in the spring stack.
At any rate, is it bad practice to increase the size of the port which feeds the regulator from the tube or tank?
I had seen in a video or read that the regulator feet port from the cylinder is so small that it takes 20 to 30 seconds for the (small plenum to refill between shots. I removed the adjuster screw and drilled the tiny wire drill size out with a drill about 30-40% bigger in diameter.
In retrospect I realize this is not something I have seen talked about much if at all. The reason I questioned doing that is that his ES went to crap, in fact the gun was acting unregulated with a steadily climbing shot string. I finally got him to take it apart yesterday and he found the large (main) reg. oring torn up and with tiny brass chips embedded in it. Obviously the reg was not cleaned thoroughly enough after reinstallation.
The oring was replaced and the drill site cleaned again of chips and reinstalled. Better but still a mess. I suspect there are chips in the spring stack.
At any rate, is it bad practice to increase the size of the port which feeds the regulator from the tube or tank?