Re: Why do Valves Stick?

Posted by Owen_Dyneto On 2013/7/8 20:36:42

Pierce-Arrow used a relatively primitive but I suspect effective crankcase ventilation system in their engines of the late 20s/early 30s era. These were updraft carbureted engines and they essentially routed what would have been the road draft tube to the air filter or flame arrestor, essentially drawing off the crankcase vapors and recombusting them. The advantage over the simple road draft tube is that the system functionrd whether or not the car was in motion, as long as the engine was running.