Techno estoril pipe on a puch.
It worked fine on the stock cilinder, but put on this polini and it's leakin' air.
Super loud, can feel it if I poke around down there, it seems that the back end of where the pipe hooks up isn't sealing with the top, I can make it less-horid if I unscrew the pipe and pull the back end up a bit.
Replaced gasket, still bad.
Two gaskets? Torch/bend the pipe?
It feels like it should seat better.
Sorry for making a new post for the sameish problem, but finding out what the problem was was mainly a solo experience on my own post, and now I've got it mostly narrowed down.