That's great info on the gasket, although mine went in OK, must've got lucky. Gasket = o-ring right?
Hope you sort it bteoh. Sorry, my photo was rubbish at showing the right wire! I used the white one with a thin red stripe (just checked it!), the middle wire of the 3. There was a red one with a yellow stripe too, so make sure you get the right one. Another good reason to disconnect the plug before you insert the pin.