![Closed Crankcase Ventilation: What is it and what purpose does it serve? | Steve D'Antonio Marine Consulting Closed Crankcase Ventilation: What is it and what purpose does it serve? | Steve D'Antonio Marine Consulting](https://stevedmarineconsulting.com/wp-content/uploads/2013/12/dec_1_image003.jpg)
Closed Crankcase Ventilation: What is it and what purpose does it serve? | Steve D'Antonio Marine Consulting
![Closed Crankcase Ventilation: What is it and what purpose does it serve? | Steve D'Antonio Marine Consulting Closed Crankcase Ventilation: What is it and what purpose does it serve? | Steve D'Antonio Marine Consulting](https://stevedmarineconsulting.com/wp-content/uploads/2014/01/dec_1_image006.jpg)
Closed Crankcase Ventilation: What is it and what purpose does it serve? | Steve D'Antonio Marine Consulting
What's the difference between CCV and PCV? I know a PCV valve is a way valve and boost (if FI) and backfires will not enter the crankcase. I've heard CCV is similar
![File:UT99 AG schematic diagram combustion engine closed crankcase ventilation with oil mist eliminator UPF-CCV.jpg - Wikimedia Commons File:UT99 AG schematic diagram combustion engine closed crankcase ventilation with oil mist eliminator UPF-CCV.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/d/da/UT99_AG_schematic_diagram_combustion_engine_closed_crankcase_ventilation_with_oil_mist_eliminator_UPF-CCV.jpg/935px-UT99_AG_schematic_diagram_combustion_engine_closed_crankcase_ventilation_with_oil_mist_eliminator_UPF-CCV.jpg)