Quote:
Originally Posted by kerry
Blowby refers to gasses that pass by the piston on the compression and power strokes and enter the crankcase. These gases build pressure in the crankcase and need to escape. The hose from the valve cover to the air filter (pcv=positive crankcase ventilation) allows these gases to escape. Very high pressures will cause oil to escape along with the gases. With the oil fill cap removed and the engine running it is easy to get a sense of how much blowby an engine has.
Gasoline engines have blowby also but since diesels run on higher compression, there tends to be more blowby in a diesel engine.
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Once again thanks for prompt reply.
I did a youtube search for blowby after I posted the previous post. I did check the blowby the same way the video did and in my opinion, there is not much gas coming out, atleast way less than the video had. As soon as I get a chance, I will shoot the video and upload to youtube, in a day or two, and post the link here.
Meanwhile I have attached the picture of what my mechanic refer as oil recover unit ( I don't remember exact wording he used).