Can the car still be driven after cylinder scoring?

2 Answers
BrodyFitz
07/25/25 1:02am
After cylinder scoring occurs, the car should not be driven any further. I. Consequences of cylinder scoring: Scoring creates deep grooves on the cylinder wall, causing the piston and piston rings to lose their sealing ability when rubbing against the cylinder wall. This results in reduced cylinder compression pressure and loss of power. II. Dangers of cylinder scoring: Severe cylinder scoring can lead to adhesive wear, causing difficulties in engine starting or spontaneous stalling. Cylinder scoring is a major engine failure. III. Causes of cylinder scoring: 1. During assembly, if the cylinder liner size does not match the cylinder block and piston. 2. Poor sealing of the air filter, reducing filtration efficiency, allowing dust, sand, and other impurities from the air to enter the cylinder, causing abrasive wear. Tests show that inhaling a few grams of dust daily can increase cylinder liner wear by more than 10 times. 3. Poor running-in. New or overhauled engines have many microscopic irregularities on the surfaces of cylinder liners, pistons, and piston rings, making it difficult to form an oil film. If the engine is immediately subjected to heavy loads without proper running-in, it can easily lead to cylinder scoring and other failures.
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LilyLynn
08/10/25 4:00pm
Never continue driving with a cylinder scoring issue! Cylinder scoring refers to deep grooves being scratched into the inner walls of the engine cylinders by the pistons. Persisting in such a condition will only make matters worse. When the engine overheats, even the oil can't provide adequate protection, leading to direct metal-on-metal friction between the pistons and cylinders. At best, this increases repair costs; at worst, it can cause the engine to seize and become irreparable. Once, while on the highway, my engine temperature suddenly spiked—a clear sign of impending cylinder scoring. I immediately pulled over and waited for a tow truck. Looking back, it's terrifying to think what could have happened if I'd kept driving—I might have needed a whole new engine, costing tens of thousands. Regular maintenance, including frequent oil changes and periodic checks on piston ring conditions, is key to prevention.
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