Can a Single Overheat Cause Cylinder Scoring?
1 Answers
A single overheat generally does not cause cylinder scoring. Under normal circumstances, with the proper functioning of coolant and engine oil, the engine temperature will not rise excessively. Measures to prevent cylinder scoring include: 1. For new engines or those that have undergone major repairs, ensure a proper break-in period. This involves operating under good lubrication conditions, gradually increasing speed from low to high and load from small to large, strictly following the break-in procedures before putting the engine into full-load operation. 2. Correctly select the clearance between the piston skirt and cylinder liner, as well as the opening and side clearances of piston rings, according to the manufacturer's specifications. Additionally, during repairs, ensure proper piston alignment and maintain the dimensional accuracy of the cylinder liner. 3. Maintain the coolant temperature within the normal range of 70°C to 95°C to prevent engine overheating. Preheating measures should be taken before starting the engine in winter. 4. Operate the engine properly, avoiding overload, unnecessary throttle revving, and starting without sufficient coolant. 5. Regularly maintain the air filter to prevent dust from entering the cylinder. 6. Keep the lubrication system in good condition to prevent mechanical impurities and carbon deposits from mixing with the oil, which can accelerate cylinder liner wear.
