Rocker cover seal? You mean the valve cover gasket? (google seems to suggest they are equivalent terms for the same thing). The valve cover gasket was changed quite recently. I don't see any oil leaking from the top of the engine. Looking into the pulley area, I don't see any oil at all, so I suspect it's coming from the underside of the crankshaft. From underneath, it seems to be coming from above the oil pan gasket. It's all so close together, so it's hard to see exactly.


As for my smoking issue, is there a problem with taking the oil filter housing OFF, while running, so I can get a better look at the source?