Oval engine

Back in the days in Sweden the engine of my oval must been rebuild, but instead of marking the cilinders with a point detonating they drilled little holes in the engine case. The result of all this is a little hole in top of the case nearby cilinder number 3. Last saterday i've removed the engine of the oval and placed it on the bench. Ofter cleaning the engine and let it run for about 1 min the oil came true one of the 3 little holes nearby cilinder 3. Result i've took the engine to a welder to weld the little holes that they dont cause anymore further problems. And that we can drive without a problem to Hessisch Oldendorf.