What Causes Abnormal Noise When Accelerating the Engine?
1 Answers
Engine abnormal noise when accelerating may be caused by: 1. Excessive cam wear causing tappet jumping during operation; 2. Impact between the rocker arm head of overhead valves and valve top; 3. Excessive carbon buildup in valve guides; 4. Detachment of valve spring seats; 5. Damage to hydraulic tappets or tappet cylinders; 6. Aging or loosening of engine mounts. Engine maintenance methods include: 1. Regularly changing engine oil and filters; 2. Using appropriate quality grade lubricants; 3. Periodic cleaning of the radiator; 4. Regular replacement of air filters, oil filters, and fuel filters; 5. Maintaining good crankcase ventilation with regular cleaning; 6. Periodic cleaning of the fuel system.