OK folks, my first time doing a guide. The Briskoda community has provided me a load of help over the years, so I thought I'd give something back.     The crank case one way breather valve attaches to the crank case at the upper right hand side of the engine. It connects to a rubber pipe which runs to the underside of, and connects to the air intake hose. From what I understand, its purpose is to provide ventilation to the crank case to remove unwanted gasses which can build up. T