I have an older 235 that has a breather tube with a cap.

When the engine is running, there is no puffing or air discharge from the bottom of the vent tube. I think thats good.

When the engine is running you can see oil leaking from beneath the cap. The oil drips down the outside of the vent tube and marks the floor. The oil escaping is constant.

Maybe the cap gasket needs fixing?

Has anyone ever had this problem?