Putting my 1990 Mercury V6 175 carb back together after the rebuild. Decided I wanted to replace the bleed lines with tygon hoses from U.S. Plastic. Have the bleed valve connections diagram and all is good till I come to the valve out of the front of the adapter plate and the one at the top front of the crankcase which according to the diagram has a bleed hose connecting the two. However, the hose from the Air Box check valve which research says is to assist getting rid of gas vapors etc from the crankcase doesn't seem to have a valve to connect too. My thought is from the description of its purpose is to put a tee fitting in to the hose direct to the bleed valve in the front of the adapter plate and combine the two lines with the bleed valve at the top of the crank case and the one at the bottom of the adapter plate. Comments please.
