What are the symptoms of camshaft wear?
2 Answers
Symptoms of camshaft wear mainly include: 1. Increased engine noise due to camshaft damage. 2. Disruption of the valve opening pattern. 3. Reduced valve lift and shortened valve opening and closing overlap time, affecting the accuracy of valve timing. 4. Inadequate air intake and incomplete exhaust emission, making it difficult to adjust the clearance between the valve stem end and the tappet, resulting in weak vehicle performance and increased fuel consumption. Here is some additional information: 1. Introduction: The camshaft is the main driving component in the valve train, used to control the timing of the exhaust valve's opening and closing, and to drive other accessories such as the fuel pump, oil pump, and distributor. 2. Position classification: The camshaft can be positioned in three ways: lower-mounted, mid-mounted, and upper-mounted. In lower-mounted valve trains, the camshaft is located in the crankcase; in mid-mounted valve trains, it is located in the upper part of the engine block; and in upper-mounted valve trains, it is located on the cylinder head.
Symptoms of camshaft wear mainly include increased engine noise, such as rattling or knocking sounds, especially noticeable during acceleration; a significant drop in power, making the car feel sluggish and slow to accelerate; severe shaking at idle, feeling like the whole car is vibrating; and increased fuel consumption due to abnormal valve opening and closing affecting combustion efficiency. Additionally, difficulties in starting or abnormal exhaust may occur, and in severe cases, the engine warning light may come on. It must be said that the camshaft is crucial for controlling the valves, and wear can cause uncoordinated intake and exhaust, leading to greater internal engine damage over time. If you notice these symptoms, don’t delay—get it checked and repaired at a professional shop as soon as possible. Regular oil changes can help prevent wear.
