Originally Posted by corgi1
I don't think its so much how much they leak as it is when they leak(and they do/will) at 100 lb pressure pushing past the rings,and then the return pressure back the other way is less pressure and the so pressure builds in the crankcase like an air-compressor starting up,,,,,the larger the breathing vent/tube the less the oil is forced out by the pressure through a small opening,it has space to run back into the engine as air passes out rather than be squirted out like a fire hose,
Ohhhh I see, says the blind man. I'm going right down to my basement and putting a proper breather on this thing if it takes me all night!!
Well, maybe tomorrow, but I get it! Do you realize the trajectory of that steam spray from the filler plug? Not good.