as i understand it the crankcase vents into the intake, the intake pulls vacuum which sucks the blowby gasses (from the crankcase) into the intake to reburn, if the crankcase vent tube fills with oil it starts to siphon the oil from the crankcase, so a siphon break is a device which prevents the siphoning action OR NOT!!!???:twist1:
the videos are awesome, makes it all very clear, i ended up just putting a filter at the end of the stock vent hose, no catch can. so far it has worked just fine but i may add a catch can later. thanks for the help!