Why Does the Supercharger Keep Making Noise?
2 Answers
The supercharger keeps making noise because the supporting copper sleeve is worn, which can cause abnormal sounds. The second reason is damage to the turbine blades. Reasons for Copper Sleeve Wear: During normal use, copper sleeves are often discarded due to excessive wear and looseness, ultimately affecting performance. There are two main reasons for copper sleeve wear: first, constant load, and second, insufficient lubrication, which can also lead to wear. Reasons for Turbine Blade Damage: Using low-quality engine oil: Turbocharged engines do not necessarily require full synthetic oil, but it is highly recommended. Full synthetic oil can achieve high shear resistance with relatively low viscosity. Low-viscosity oil has less resistance and flows faster, while the high temperature of the turbocharger requires efficient heat dissipation. The low viscosity of full synthetic oil can improve the heat dissipation efficiency of the oil, which is significant for the turbocharger. Aggressive acceleration with a cold engine: Rapid acceleration when the engine is cold can cause the turbocharger speed to rise quickly. Although the engine is cold, the exhaust gas temperature may not be low, leading to high-speed rotation of the turbine and a sharp increase in turbocharger temperature. Due to low oil temperature and poor circulation, the temperature cannot be reduced in time, resulting in turbocharger burn.
I've driven many turbocharged cars before, and the constant noise from the turbocharger is usually due to severe bearing wear inside. Over time, the shaft doesn't rotate smoothly and starts making noise, or it could be caused by clogged oil passages leading to insufficient lubrication. Too little or dirty engine oil can also cause this issue. Another possibility is poor sealing of the intake or exhaust pipes, with cracks causing air leaks. Abnormal airflow can generate noise, and if not addressed promptly, it might damage the entire turbocharger system, making repairs more expensive. When I encounter this situation, I immediately check the engine oil level and oil passage cleanliness. If that doesn't help, I take it to a mechanic to check for loose parts or components that need replacement—don't wait until it gets worse. Regular maintenance, such as paying attention to turbocharger care and changing the oil filter periodically, can effectively prevent such noise issues.
