What Causes Crankcase Pressure High?

What Causes Crankcase Pressure High? When you combine a large cylinder bore, high cylinder pressure through turbocharging, many hours of use and marginal maintenance, excessive blowby is the result. The leakage of any combustion gases, air, or pressure into the engine’s crankcase is considered blowby. What causes vacuum in crankcase? Excessive crankcase under-pressure, (vacuum) can … Continue reading What Causes Crankcase Pressure High?