Oil on top of my engine.

[maytag]

Originally Posted by blvsmith

OK that means it's the oil filler tube side. Could used oil actually come out of that?

I'm actually chasing a "leak" in that location as well. It's more of a "weep", really, as I can't see anything dripping, but everything gets oily there, and it's finding its way down the side of my motor, across the coil-packs, etc.
On mine, I'm of the opinion it's the Crankcase vent hose. This is the "accordion" hose that connects the left-side camshaft housing to the AOS on the right side. It snakes around across the top of the right-side camshaft housing. Mine is wet with oil all along that length. It didn't smoke when I smoked the engine, but it'd have to get through the AOS or a check-valve to do so.

the Oil Fill tube is further towards the center of the motor, as opposed to the crankcase vent line. I don't think it's my culprit.