What are the causes and solutions for engine belt noise?
2 Answers
Mostly due to the aging of various belt groups in the engine, the solution is to replace the belt or lightly sand the contact surface between the pulley and the belt with No. 100 sandpaper (light sanding is sufficient). Here is some related information about engines: 1. Concept: An engine (Engine) is a machine capable of converting other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines typically convert chemical energy into mechanical energy. 2. Classification: Internal combustion engines, external combustion engines (where fuel burns outside the engine), gas turbines, and jet engines.
That time when the engine made a squeaking noise while driving really scared me. It turned out the belt was too loose or had aged and developed frayed edges, and there might also have been oil causing it to slip. If it's loose, you can adjust the tension yourself—get a tension gauge to check the sag in the middle section; normally, it's just a few millimeters, and you can fix it by adjusting the screw. If the belt is severely worn or has cracks, it’s more reliable to just replace it with a new one. Remember to choose a good-quality brand and don’t skimp on cost. Noises can also be related to auxiliary components, like worn tensioner pulley bearings or misaligned pulleys. These issues are best checked by a professional shop—don’t wait until the belt snaps and leaves you stranded, as repairs will cost more. Usually, pay attention to changes in engine sounds; addressing small problems early saves hassle.
