dj haf

i noticed that a little bit of oil was ontop of my valve cover, and it seems to be comming from the oil cap... so my first thought was that if i replace the oil cap, the problem will go away. while inspecting the bottom of the car i noticed a drip of oil on the oil filter, and the tubes to the oil cooler were covered with oil. what could be causing this problem? i noticed it right after i got my engine back from having it rebuilt, but if it's nothing major, im not going to bother taking it somewhere, i'd rather fix it myself. thanks guys

IROC-T

Not actually seeing the car and what you describe I would say worst case senierio too much crankcase pressure (bad ring job,bad PCV,etc.),or loose bolts where it seals(valve covers,oil pan etc.),or excessive oil pressure.

Pneumatic_Tire

Maybe someone missed when putting oil in it.

aklim

Run a compression test and see what you have. Best thing of course is to run a leakdown test and see where it is going to but a compression test will be a start.