Re: How to add a PCV Valve to a 1949 Packard

Posted by Owen_Dyneto On 2015/11/14 14:48:46

Another option to positive crankcase ventilation would be to run a line from the draft tube connection to the air cleaner

That's what Pierce-Arrow did in 1931, though that engine really didn't have an air filter, it was just a flame arrestor; also updraft carburetion. The tube was perhaps 1 inch in ID. I believe the carburetor (UU2-R) was re-jetted to compensate.