What Causes the Resonance Hum at 2000 RPM in the Engine?
1 Answers
Resonance occurs when the engine's vibration frequency matches the vehicle's natural frequency. Since the engine's vibration frequency is solely related to its RPM, the issue does not lie with the engine itself. The vehicle's body design inherently ensures that its natural frequency differs from the engine's frequency. However, factors such as wear and tear from prolonged use can alter the vehicle's natural frequency, leading to resonance at a new speed. Below are some maintenance recommendations: 1. Engine Oil and Oil Filter: Primarily focuses on the lubrication system's maintenance. The lubrication system's key role is to effectively lubricate various components of the car engine to prevent excessive wear. The oil filter's function is to remove impurities from the oil, ensuring the lubrication system operates normally. The oil filter should be replaced along with the oil during an oil change. 2. Air Filter: The air filter's role is to filter the air before it enters the cylinders, removing impurities such as dust, sand, and other foreign particles. The cleaning and maintenance of the air filter depend on the usage environment. The gasoline filter typically needs replacement after driving 20,000-25,000 km. 3. Spark Plugs: Spark plugs are consumable items and should be replaced every 20,000 km.
