What Causes Engine Chain Noise?
2 Answers
Engine chain noise is caused by delayed oil changes, damaged oil pumps, lack of tension in the tensioning device, etc. Delayed oil changes: Failure to change engine oil promptly leads to noise. The chain requires oil lubrication, and delayed oil changes will cause chain noise. Replace the oil to resolve the issue. Damaged oil pump: Check for oil pump damage, which can result in insufficient oil supply, preventing timely lubrication of the timing chain and causing noise. Replace or repair the oil pump. Lack of tension in the tensioning device: This can be due to insufficient tension in the chain tensioning device, stretched timing chain, abnormal wear of the guide chain plate, or damaged timing sprockets. Replace the specific mechanical component that is damaged.
I've experienced this issue before. The engine chain is making abnormal noises, sounding like metal friction or ticking, mostly caused by a loose or worn chain. The chain is responsible for the engine's timing movement. If it becomes elongated or the tensioner fails, it will hit the sprocket during operation, creating noise. Common causes include natural aging of the chain, insufficient lubrication leading to lubrication failure, or a weakened tensioner spring. If not addressed promptly, it may cause the chain to skip teeth, leading to severe engine damage, such as piston and valve collision. I recommend first confirming the source of the noise, then checking if the engine oil needs to be changed. However, it's best to go to a professional repair shop for diagnosis as soon as possible and avoid dismantling it yourself, as it involves precise adjustments. Regular maintenance can prevent these problems and save a lot on repair costs.
