possible butt joint?

Hello, a question about the Board of Curse, after changing it, planning and disconnecting the cooler I have seen (cream) in oil filling plug, I have downloaded the carter, introduced pressure in refrigeration and nothing happens.
Is it possible that it was condensation previously oil and water had been joined in carter, there would be remains)

It is very possible that there are still oil remains in the engine. It would be convenient for you to change the oil and filter after having traveled some km. As long as there have been no symptoms of heating, bubbles in expansion deposit, or increased oil level or thickness of the "cream" in the filling plug.
Luck

He thinks the same, they are generally residue in both the seam of the lid and in some oil ducts. Now if you rectified the qualluta, you would not have a problem and if the temperature does not increase, everything is fine.

The normal temperature but the oil after a while decomposed (I came out cream)

in the end the fault was a microfissura in the shirt No. 1
(mixture of antifreeze with oil)