I am having problems lately (but not in the first 2 hours of engine operation) with oil leaks in my rotary valve system. First oil was spitting out the hole in the cap. Then I bought a new cap gasket and sealed the hole. Now I seem to get oil leaking where the tubing is clamped to the reservoir. Should this system have any pressure at all? I am concerned that some seal needs to be repaired to prevent pressure from getting into the oiling system.

The port in the reservoir for return oil is above the oil level as recommended by the Rotax manual.