I have a 95 XJ Sport, and I'm losing a good bit of oil somewhere. My valve cover gasket has been seeping oil for a while, but I also noticed that the "Fresh Air Inlet" on top of the valve cover has a lot of oil around it all the time now. Will replacing this inlet stop the leak? Also I wouldn't be surprised if I'm burning a bit of oil, I have 215k on the engine, but I'm not seeing any white smoke from the tailpipe. The only smoke I ever see is a bit when I open the oil fill cap after its been running.

I tried to show some pictures of the fresh air inlet and the valve cover, but they aren't great

 

Bump?

 

I'm not sure that it will stop the valve cover leak but I would replace that elbow yes. You can try and very carefully tighten the valve cover bolts a bit and see if that helps but once it starts it's pretty much time to redo it. I always wipe out (carefully) whatever sludge is up there when I do it too.

 

It would be blue, white is coolant.