Isn the KrankVent just an expensive PCV valve?
A2. There is a difference. The KrankVent has been granted a Patent for a PCV valve for any internal combustion engine, but the similarity ends there. The KrankVent claims include the unique property of releasing crank case pressure and producing, and maintaining, a vacuum in the crank case. This is done with a unique Flow Controlled One-Way Valve that uses aerodynamic principles to move the valve in and out of position. Conventional PCV valves use reed, flapper, umbrella, ball-check, springs, etc., to close and restrain the valve. These valves soon fatigue and fail as they get cycled 50 to 100 times a second at 3000 RPM plus. Go to any auto store and try conventional PCV valves for yourself. If the valves do work in the beginning, they soon fail. This is true for the umbrella valves in the heads of Harley Davidsons as well as other imitation “KrankVents”.
