What are the causes of cylinder scuffing in car engines?

1 Answers
StLila
07/30/25 8:49am
The causes of cylinder scuffing in car engines are: 1. Engine overheating due to leaks or lack of coolant in the cooling system that is not replenished in time; 2. Insufficient engine oil level, leading to loss of cylinder sealing and lubrication function; 3. Piston ring breakage, scratching the cylinder wall; 4. Piston pin retainer ring detachment, scratching the cylinder wall; 5. Piston rings getting stuck in the ring grooves due to carbon deposits, losing their sealing effect; 6. Piston pin protrusion, scratching the cylinder wall; 7. Excessive clearance between the piston and cylinder wall. Cylinder scuffing refers to deep grooves being formed on the inner wall of the cylinder, causing loss of sealing when the piston, piston rings, and cylinder wall rub against each other, resulting in reduced cylinder compression pressure and loss of power.
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