blowby

Example:The engine's piston rings were leaking, causing a blowby condition.

Definition:A small failure of a seal or covering, permitting fluid, gas, air, etc., to escape or to enter, or the process of escaping or entering, as in an oil or gas leak.

Example:The leakage from the blowout preventer needed to be sealed to prevent any gas blowby.

Definition:The escape or passage of a liquid or gas from a pipe, tank, vessel, etc., through a leak.

Example:An exhaust leak could be detected by the smell of burnt fuel at the engine bay that is a sign of blowby.

Definition:A leak of exhaust gases, typically from the wrong part of the system, to the wrong area of the vehicle, causing an increase in pollutants and a likely decrease in performance.