Help with valve gear working?

So this is specifically asking for help with Breckland Bricks' valve gear pieces all fitting together and working as intended A little bit ago I posted a 3.0 Remaster of a Gordon the Big Engine MOC and I had given him the valve gear pieces from Breckland Bricks because I thought it would be neat. But when I posted it, somebody commented that what I had built would not work in practice. So after looking up a couple pictures of the valve gear pieces correctly connected, I edited what I had to...