wear between the cylinder wall and the piston ring
- **Poor lubrication**: Insufficient or poor quality lubricant is one of the common causes of scuffing. If the engine lacks sufficient lubricant, or the lubricant used does not meet the manufacturer’s specifications, it may lead to a lack of necessary lubrication between the piston and the cylinder wall, causing wear.
- **Overheating**: Overheating of the engine can accelerate the expansion of metal parts, resulting in a smaller gap between the piston and the cylinder wall, increasing the chance of direct contact between the two, which in turn causes wear. Overheating can be caused by reasons such as cooling system failure, poor heat dissipation, or long-term overload operation.
- **Improper assembly**: During engine assembly or repair, if the piston, piston ring or cylinder liner is improperly installed, such as mismatched size, insufficient cleanliness, etc., it may also cause scuffing.
- **Improper use**: For example, frequent cold starts followed by full-load operation or long-term idling may place additional burden on the internal parts of the engine and increase the risk of cylinder scuffing.
- **Fuel quality issues**: Using diesel with too much impurities or water will not only affect combustion efficiency, but may also produce carbon deposits and increase wear on the piston and cylinder wall.
- **Improper maintenance**: Failure to regularly change the oil and filter, and failure to inspect and maintain according to the manufacturer’s recommended maintenance cycle will also increase the possibility of engine cylinder scuffing.
To avoid cylinder scuffing in diesel engines, it is very important to perform regular professional maintenance, use qualified lubricants, ensure the normal operation of the cooling system, and follow correct operating procedures. If you find signs of abnormal engine noise, increased fuel consumption, or reduced power, you should stop the engine immediately for inspection and seek help from professionals if necessary.
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