So, recently my 01 passat 1.8t AUG has been spewing oil like a white girl spewing on St Patrick's day. I thought my valve cover gasket just gave out until I took off the plastic cover and found that the chain tensioner had ground thru the valve cover itself! I took pics and will try to get them on here so u can see and be as shocked as I am. Now my question is what would of caused this? Would I be able to just get a new valve cover and throw it on with no problems or is it something more serious that would require major engine work? It ran completely fine before and still kinda does minus the low oil pressure. Please help!