What are the symptoms of engine cylinder scoring?
1 Answers
Engine cylinder scoring manifests as a significant decrease in air tightness, increased fuel consumption with reduced power, and difficulty starting after stalling. Below is relevant information about engine cylinder scoring: Causes of engine cylinder scoring: Oil issues: Engine oil is the lifeblood of a car. All components in the vehicle require proper lubrication to operate smoothly. The engine oil ensures normal engine operation. If the vehicle isn't maintained on time and the oil isn't changed promptly, friction between engine components will gradually increase. While driving, the piston continuously moves within the cylinder. When the oil loses its effectiveness, the piston will naturally wear down the cylinder wall. Prolonged high-speed operation: The slower the engine piston moves within the cylinder, the less friction it generates. However, during extended high-RPM operation, the engine temperature rises continuously, causing the cooling system to fail. The piston expands due to heat, leading to cylinder scoring. Consequences of engine cylinder scoring: The vehicle's power will noticeably decrease, with some cylinders potentially becoming inoperable. Additionally, oil burning may occur. Repairing cylinder scoring is extremely costly, often requiring replacement or precision machining of piston rings, pistons, and cylinders. Some vehicles have cylinder liners to avoid excessive repair costs from scoring - if damaged, only the liner needs replacement. However, most passenger cars don't have cylinder liners, making repairs extremely complicated and expensive, essentially equivalent to replacing half of the engine.
