The studs that hold my cp3 kept working their way out. Replaced then, red locate etc. Then one broke off down in the hole. Tried putting locking nuts on the studs and locktite. Tried going with grade 8 bolts instead of studs. Was planning on putting helicoils in the next day when the fitting (check valve) that connects to the line that runs from the pump to the rail started leaking . Tried to tighten it up, sheared it off. Tried getting it out with an easy out, broke that off too. Any suggestions???