How often should the car engine pulley be replaced?

[DiGemma]

Generally, the timing belt should be replaced every 60,000 kilometers for most cars. However, in actual conditions, this figure may vary significantly. If the vehicle is used in harsh environments, such as areas with heavy sandstorms or high temperatures, it may need replacement around 50,000 kilometers. Below are specific situations for replacing the car engine pulley: 1. When inspecting the belt, if defects such as core breakage or groove section cracking are found, immediate replacement is required. 2. The belt must be replaced if the cover layer and cord separate or if the cord frays. 3. When the belt is placed on the pulley, there should be a gap between the inner diameter of the belt and the bottom of the pulley groove. If there is no gap, the belt must also be replaced.

[McBrandon]

I just went through this last year! The engine pulley on my car was replaced at around 70,000 kilometers. Actually, many owner's manuals recommend inspection at 50,000-80,000 kilometers or every 4 years. You really can't wait until it breaks to replace it. It's best to have the mechanic listen for unusual sounds during regular maintenance. Once I heard a 'creaking' noise from the engine compartment, which was a clear sign of belt aging. The replacement isn't expensive - for an ordinary car, it's about 300-400 yuan including labor and parts. But if it suddenly breaks on the highway, it can instantly damage the alternator and water pump, and the towing plus repair costs will hurt your wallet for days.

[DeBrady]

Having worked in car repairs for over a decade, I've seen countless vehicles towed in due to broken belts. It's generally recommended to thoroughly inspect the belt pulley condition around 60,000 kilometers, especially for vehicles frequently used for long-distance travel. The inspection is actually quite simple: after turning off the engine, use a flashlight to check the belt surface for cracks—fine lines like nail scratches are warning signs. Rubber materials harden over time; if the side wears into a frayed edge, it's time for replacement. By the way, if the belt pulley bearing feels sticky when rotating, it should be replaced together, otherwise the new belt won't last long either.

[IrisMarie]

Last time I went for maintenance, the 4S shop reminded me it was time to replace the belt pulley, at 60,000 kilometers. The mechanic said the current belt lifespan is generally between 50,000 to 100,000 kilometers, but it depends on driving habits. My friend's old Japanese car had the belt replaced at 80,000 kilometers, and the inner side of the belt was cracked into a jagged shape. I suggest ladies proactively ask the mechanic about the belt condition during maintenance. The aging of rubber parts can be judged visually. Don't hesitate to spend a few hundred bucks; it's better than having the belt break on the road and needing rescue, especially when taking kids to extracurricular classes at night—that's the last situation you'd want to encounter.