Crankcase breathers play a big role in reducing diesel engine emissions by recirculating blow-by gases back into the engine.

But one of the less-talked-about components of a diesel engine like the Cummins, is the CCV filter system. A CCV filter, or crankcase ventilation filter, isn't unique to the 6.7-liter Cummins ...

PCV systems are among the earliest emissions controls installed on our engines, and they can significantly reduce hydrocarbon emissions. For our high-performance engines, they also serve a few ...

Think of an oil catch can as a tiny quarantine ward spliced into your engine's positive crankcase ventilation (PCV) hose. Every time a piston fires, a wisp of combustion sneaks past the rings, ...

It can also contaminate the lubricating oil, ultimately creating sludge deposits within the engine. And if crankcase pressure isn't sufficiently relieved, oil will soon push past the gaskets and ...

One of the most common components in an engine’s emissions control system is the positive crankcase ventilation valve, or PCV valve. Its job is to allow the air and fuel vapor that gets past ...

QUESTION: I have a boat powered with a 5.7 liter V-8 inboard engine. The crankcase hoses that go from the top of the valve covers and vent into the carburetor are always blowing steam. The engine ...