Abnormal noise at the engine belt bearing
1. In most cases, the abnormal noise of the belt is due to the belt being loose. It is best to go to the repair shop to adjust the belt tension in this situation, as the belt slipping will produce a scream. Once the belt slips, it will be further stretched due to friction and high temperature, causing more serious slipping and entering a vicious cycle. So timely adjustment of belt tension is crucial.
2. Abnormal noise only exists during idle or low speed operation. The reasons for the noise include: excessive clearance between the piston and cylinder wall; The piston pin assembly is too tight or the connecting rod bearing assembly is too tight; Excessive clearance between the tappet and its guide hole; Worn contour of the valve cam; Sometimes, the starting grip becomes loose and causes the pulley to make a noise (noticeable when the speed changes).
3. In most cases, the abnormal noise of the belt is that the belt is loose. When this situation occurs, it is best to go to the repair shop to adjust the belt tension, as the belt slips and screams. Once the belt slips, due to the high temperature of friction, the belt will further lengthen and the slipping will become more severe, leading to a vicious cycle. Therefore, timely adjustment of belt tension is crucial.

What is the reason for the abnormal noise from the car belt
1. This is because the joint surface of the belt and pulley is relatively smooth. It usually occurs when the engine speed changes rapidly, and sometimes the load of belt driven accessories increases, which can also cause the belt to spin. Belt squeaking usually means that the friction coefficient on the surface of the belt has been greatly reduced and has been excessively worn.
2. The squeaking sound emitted by car belts is due to the belt being too loose, aging, or the tensioning wheel being ineffective.
3. What is the cause of abnormal noise in car belts? In most cases, the belt is loose. It is best to go to a repair shop to adjust the tension of the belt in this situation, as slipping will cause a scream. Once the belt slips, it will be further stretched due to friction and high temperature, causing more serious slipping and entering a vicious cycle.

What is the reason for the abnormal noise of the engine belt?
1. It may be due to the belt slipping on the generator, causing severe friction and vibration between the belt and pulley, resulting in a certain frequency of noise.
2. This is because the joint surface of the belt and pulley is relatively smooth. It usually occurs when the engine speed changes rapidly, and sometimes the load of belt driven accessories increases, which can also cause the belt to spin. Belt squeaking usually means that the friction coefficient on the surface of the belt has been greatly reduced and has been excessively worn.
3. In most cases, the abnormal noise of the belt is due to the belt being loose. It is best to go to the repair shop to adjust the belt tension in this situation, as the belt slipping will produce a scream. Once the belt slips, it will be further stretched due to friction and high temperature, causing more serious slipping and entering a vicious cycle. So timely adjustment of belt tension is crucial.
4. The reasons for abnormal engine noise are as follows: the joint surface between the belt and pulley is relatively smooth, and abnormal noise usually occurs when the engine speed changes rapidly. Sometimes, the noise also occurs when the load of accessories driven by the belt increases.
5. Abnormal noise occurs when the engine accelerates rapidly, and the sound still exists when maintaining high-speed operation. The reasons for the noise include: loose connecting rod bearings, burnt bearing shells, or rotation due to size mismatch; Loose crankshaft bearings or burnt bearing shells; The piston pin is broken; The crankshaft is broken. The method to determine the abnormal noise of the engine belt is to first check the engine belt.

What is the reason for the abnormal noise of the engine belt?
It may be due to the belt slipping on the generator, causing severe friction and vibration between the belt and pulley, resulting in a certain frequency of noise.
In most cases, the abnormal noise of the belt is due to the belt being loose. It is best to go to the repair shop to adjust the belt tension in this situation, as the belt slipping will produce a scream. Once the belt slips, it will be further stretched due to friction and high temperature, causing more serious slipping and entering a vicious cycle. So timely adjustment of belt tension is crucial.
This is because the joint surface of the belt and pulley is relatively smooth. It usually occurs when the engine speed changes rapidly, and sometimes the load of belt driven accessories increases, which can also cause the belt to spin. Belt squeaking usually means that the friction coefficient on the surface of the belt has been greatly reduced and has been excessively worn.