How to Determine Engine Cylinder Scoring When Engine Oil Is Completely Leaked?

[McHarper]

When engine oil is completely leaked, the symptoms of engine cylinder scoring mainly include the following: 1. Decreased cylinder compression pressure and reduced power; 2. Abnormal engine noise; 3. Oil entering the combustion chamber causing oil burning, with severe smoke from the exhaust pipe; 4. Engine malfunction or even stalling. Extended content: 1. Engine cylinder scoring refers to the damage to the cylinder caused by dry friction between the piston, piston rings, and cylinder liner surface due to the loss of oil lubrication, generating high temperatures that melt the metal and cause mutual pulling. 2. Prevention of cylinder scoring: (1) Maintain normal coolant temperature between 70~95 degrees Celsius to avoid engine overheating. Preheating measures should be taken before starting in winter; (2) Correctly select the clearance between the piston skirt and cylinder liner, as well as the opening and edge clearances of the piston rings; (3) Strengthen the maintenance of the air filter to prevent dust from being sucked into the cylinder; (4) Use high-quality engine oil products and ensure adequate oil levels.