What sound does engine cylinder scoring make?
1 Answers
It may be accompanied by a rattling sound, but cylinder scoring can only be determined by certain symptoms and not solely by engine noise. Methods to determine whether an engine has cylinder scoring: 1. Depending on the severity, cylinder scoring can be divided into three stages: initial, intermediate, and advanced. 2. In the initial stage, the engine noise is not very distinct. The main symptom is smoke escaping from the oil filler port and crankcase ventilation pipe when accelerating or intermittently increasing throttle. The solution is to remove the piston connecting rod assembly for inspection and cleaning, replace the engine oil and oil filter, and clean the oil pan. 2. In the intermediate stage, there will be abnormal noises similar to knocking. Symptoms include poor idle performance, and when the oil filler cap is opened, a large amount of smoke will rhythmically escape. The exhaust pipe emits thick blue smoke. The solution is to polish with an oilstone and replace with pistons of the same model and quality, as well as piston rings of the same specifications. 3. In the advanced stage, there will be more obvious knocking and blow-by sounds, along with a noticeable drop in power. The noise worsens with increased throttle, becomes chaotic, and the engine vibrates. In such cases, the cylinder liner, piston, and piston rings must be replaced as a complete set.
