Need Translation ????

blowby is the term used for combustion chamber gases that get around the piston rings. There is always some blowby (which is why crankcases are ventilated), but too much usually means the piston rings are worn.

 

Blowby is compressed air, in the combustion chambers of the engine, getting past the piston rings into the crankcase and out the road draft (blowby) tube.

 

Most truck engines have an open rubber hose hanging down near the oil pan. This is the crankcase ventilation hose. Any blow-by will come out of this hose. My Detroit has a minimal but steady fog coming out at idle.

 

Blowby is an archaic term used to describe a "b a s t a r d" child or one born out of wedlock or by accident. Not much used anymore and I have no idea why it would be in a trucker magazine. Maybe they are saying the truck is a real honest to goodness one and not a fake like those fake high end bodies built on a VW Beetle chassis.

Yes YES I do get it, this is a joke!!

 

I was told not to buy a freightliner with lots of blowby a while back, I did it anyways because thats all I could afford then. the truck had 620k miles and drove it till 1.4 million miles with out an over haul.. maybe I just got lucky.. dont know