Is there a way to control the crankcase pressure?
The original equipment system, especially on supercharged, or any modified engine is often inadequate. In nearly every case, there are advantages to properly controlling the vapors and oil that normally escapes back to the engine via the factory PCV (Positive Crankcase Ventilation) system.
What happens when the crankcase is entered into the engine?
Once entered into the crankcase, the atmospheric pressure begins to build. This superheats the air and oil – far faster than what the engine was designed to withhold, consequently boiling the oil into a miasma of oil mist and fuel vapor.
Can a high crankcase pressure cause an oil leak?
Manuals can be found at the manufacturers website.** An abnormally high crankcase pressure can cause oil leaks. The engine crankcase is designed to operate below atmospheric pressure, and the breather valve or pcv (positive crankcase ventilation) valve is the device used to keep crankcase pressure below atmospheric pressure.
What to do if your engine crankcase is blowing oil out?
The engine crankcase is building up air pressure and blowing oil out onto the engine. Try replacing the PCV valve. Cheap fix, and I replace mine every time I change the spark plugs.
The original equipment system, especially on supercharged, or any modified engine is often inadequate. In nearly every case, there are advantages to properly controlling the vapors and oil that normally escapes back to the engine via the factory PCV (Positive Crankcase Ventilation) system.
Manuals can be found at the manufacturers website.** An abnormally high crankcase pressure can cause oil leaks. The engine crankcase is designed to operate below atmospheric pressure, and the breather valve or pcv (positive crankcase ventilation) valve is the device used to keep crankcase pressure below atmospheric pressure.
The engine crankcase is building up air pressure and blowing oil out onto the engine. Try replacing the PCV valve. Cheap fix, and I replace mine every time I change the spark plugs.
Once entered into the crankcase, the atmospheric pressure begins to build. This superheats the air and oil – far faster than what the engine was designed to withhold, consequently boiling the oil into a miasma of oil mist and fuel vapor.