For starters I've read about the o ring inside the QD causing leak. I disconnected the QD for other maintenance. When I reconnected it started leaking. Leak was more when the fuel line was moved in any direction. I disconnected the fuel line and fuel continued to leak. I was able to get it to stop by repeated connect / disconnect of QD. It is now disconnected with no leaks but what good does that do?
Question is could this really be the o ring?

Thanks