hi all i am trying to tighten up the oil cooler line in the front of the motor. the short line i guess its the return hose. anyway it is lose and oil is driping out of of it pretty good. my question is how. there are two differnt size nuts on the end there. the big one seems to be connected to the line as u cant turn that without turning the line up into the ac pump. so that just leaves the other smaller one. it to seems to be coonected. now are tey seperate and just stuborn or what? cuz i can take the whole assembly as it comes out of the motor and turn it.