2002 HPDI 150 has an oil leak. Pulled VST tank found the lower oil injector line going to the crankcase was leaking, clamp had rusted off, also fitting was also rusted pretty bad, while trying to install a tie wrap on hose, the fitting broke, have found the fitting in the parts book. Couple of questions, has anyone ever had to replace one these and if so how do you remove the old one, are they a press fit or threaded? I think this is the correct part 68F-13552-00-00 nozzle also need to replace some of the chech valves part #646-11370-00-00 , in the attached photo you can see the fitting and the hose comes directly from the pump and it is a clear hose not gray. Any help would be appreciated. Here is a photo of the part that I need, you can see the clear hose to the right that connects to it
