Is a Car with Cylinder Scoring Still Worth Keeping After Repair?

1 Answers
DelMiguel
07/25/25 6:12am
Engine cylinder scoring can be repaired. The causes of cylinder scoring include the following: 1. Insufficient clearance between the piston and cylinder, poor lubrication between the piston and cylinder, or improper engine oil selection; 2. Piston ring breakage, seizure on the piston, or piston circlip breakage or detachment. The piston and piston ring tilt to one side, pressing tightly against the cylinder wall; 3. Prolonged high-speed or heavy-load operation without proper running-in after an engine overhaul. Poor engine cooling or faults in the engine cooling system; 4. Contaminated engine oil containing a large amount of impurities. Long-term overloading and low-speed driving. Cylinders produced by non-standard manufacturers with low hardness and poor quality. Air filter failure, allowing air impurities to enter the combustion chamber and deposit on the cylinder wall.
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