There is a oil hose going to a tube that goes through the rockerbox into the head that i cant remove. Tried to un screw but it seems to be twisting the whole pipe. Cant take the head or rockerbox off until it is removed here are some pics!!!!!!!!

 

remove the high pressure oil pump, that cast iron housing in the back center , thos lines go there, disconnect then you can pull it out, looks like you got a 03 or o4 motor// great time to upgrade the HPOP, check out dieselsite.com

 

there is a disconnect tool that will take the line off of the tube then you can use a socket to take the tube out and remove the rocker box and head