Overhaul

Young good afternoon, I have a doubt, I made an overhaul to a Geo Metro 1000 cc, but from the first day they gave it to me when the RPM passes from 3500 begins to make smoke by the escape and the car remains on but without force. In the carburetor, oil is observed, which I did not have before. Is it obvious that the work is bad but specifically where will the problem be?

Greetings and thanks before hand for your comments.

For a carburetor to be contaminated with oil, it only has two inputs, one is because

This problem that this engine is presenting can be because the PCV is bad is in the breathtake hose as the partner explains.

Kikemec, thanks for the answer, as Edie says was the first thing that was changed to the engine. But the problems persists. Could it be that this bad is the work of the butt or how can I know if it is the work of the block or rings?

Greetings.

Buno estimated friend There are barias tests that can be done among them a test of leaks or erymetic to save if there are compretion leaks can also be checked the valve and guides stamps but it is supposed to be supposed to be repaired.