[Werner]

Hello everybody,

I thought again. (Last night, the whole day ...) I can not believe that the breakthrough was "just hit somewhere" inside. Because then the correct height of the overflow for the oil pipe is at the wrong (too low) level.

I measured it.

1) The lowest overflow edge from the return opening in the valve cover.

2) The lower edge of the breakthrough. I have marked marks outside. (see picture)

It can be clearly seen that the lower edge of the break hole is about 1/4 inch below the discharge edge of the return pipe.

Then the return pipe would make no sense, because the oil level does not reach the return opening.