1939 Six crankcase ventilation

Posted by jwblazek On 2016/4/12 21:54:14

Working on an exhaust manifold leak, had to remove the intake and exhaust manifold. To get clearance, had to remove the crankcase ventilation tube located on the right side into the base of the carburetor manifold. In series with the steel pipe is an unusual fitting, a check valve?, followed by a series of kluged up brass fittings.
Any idea what that item may be? Only an orifice now, maybe .125 dia.