Today I noticed that my '97 Sephia is leaking oil around the distributer and the radiator hose under it is greasy. Now I am not sure if the valve cover area on top of it is the culprit or no, because that area is oily anyways. The rest of the valve cover seems fine. I wanted to know if anybody has any experience with this. Also want to know how involved is the gasket change for the valve cover and the distributer? I don't have a repair manual. Any help is appreciated; it is the 1.8 engine with a standard tranny.