What is the abnormal noise of tensioning wheel

Generally speaking, for example, the abnormal buzzing or squeaking noise may be the failure of the tensioner.

The tensioner acts on the timing belt or timing chain of the engine to guide and tighten it, so that it is always in the best tightening state. It is generally divided into two modes: oil pressure and machinery, which can automatically adjust the tension of timing belt and timing chain.

Driven by the timing belt or timing chain, the camshaft drives the valve to open and close at the right time, and cooperates with the piston to complete the four processes of intake, compression, work and exhaust.

The timing belt and timing chain will jump during medium and high speed operation, and the timing belt will be elongated, deformed and jump teeth due to the material and stress of the belt during long-term use, resulting in inaccurate valve timing, resulting in vehicle fuel consumption, weakness, detonation, etc.

The tensioner provides pressure to the belt or chain. The tensioner pulley is in direct contact with the timing belt, while the guide rail is in direct contact with the timing chain. They apply the pressure provided by the tensioner to it while running with the belt or chain to keep them in proper tension.