Ok boys I need help. I’m bout at my breaking point with this tractor. 6615 had a bad miss at about 2k and leveled off after that. Replaced all cloth fuel lines, filters, new injectors, then at that came the big boy the injection pump. The pump fixed the missing problem. But about 2 days later...

Hi John Deere experts, I snapped the screw, which I'm pointing to in the photo. It now spurts out diesel when the tractor is running. I can't seem to find much information online about that screw, if I can simply order a new one. Any insight is much appreciated. Also, to note my...