
Automobile manufacturers have clearly specified that the timing drive system should generally be replaced every 60,000 kilometers. Consequences of not replacing it in time: Damage to the timing drive system components can cause the vehicle to break down while driving, and in severe cases, it may lead to engine damage. Therefore, the regular replacement of the timing drive system cannot be overlooked. Once the vehicle exceeds 60,000 kilometers, it's time to consider replacement. The latest replacement should not exceed 3 years or 80,000 kilometers to prevent belt aging and breakage. Regular replacement is necessary: The timing belt is a consumable part, and once it breaks, the camshaft will not operate in sync with the timing, which can very likely cause the valves to collide with the pistons, resulting in severe damage. Hence, the timing belt must be replaced according to the mileage or time specified by the manufacturer. The maintenance intervals set by different car manufacturers vary, so the specific replacement cycle should adhere to the manufacturer's requirements.

We van drivers all know that timing belts are nothing to be trifled with. My Wuling has been running for nearly ten years, and I religiously change the belt every 80,000 kilometers. Once, I saw Old Zhang's van go 100,000 kilometers without a change, and the belt snapped, damaging the valves. It cost him over 6,000 yuan to fix the engine. Different models have different requirements—for example, the Changan Star recommends a change at 60,000 kilometers, while the Jinbei Haishi can go up to 90,000. The key is to check your maintenance manual. If you frequently haul heavy loads, it's even more important to inspect the belt early. If you notice cracks or unusual noises, don't push your luck. It's safest to replace it within the 60,000 to 80,000 kilometer range—don't wait until it breaks to regret it.

Mechanics have seen too many cases of timing belt failures. For commercial vehicles like vans, it's safer to replace the timing belt every 60,000 to 80,000 kilometers, along with checking the tensioner pulley and water pump. In actual use, it depends on specific working conditions—if frequently driving on mountain roads with heavy loads, cracks may appear in the belt as early as 50,000 kilometers. In terms of brands, Gates and Continental offer more stable quality. Replacing it costs only about seven to eight hundred yuan, but if it breaks, repairing the engine starts at five thousand yuan—the math is clear. Remember to have the mechanic check the belt condition every 20,000 kilometers.

When running my small supermarket, my Dongfeng Xiaokang was always fully loaded with goods and running around, with the belt replaced promptly at 70,000 kilometers. The engine of a van bears heavy loads, and the belt wears out quickly. Replacing it between 60,000 to 80,000 kilometers is the safest interval. I've seen several vans stranded on the roadside due to broken belts. The exact timing depends on usage intensity; if you often drive on highways, it's advisable to replace it earlier. Always opt for genuine parts when changing the belt, as aftermarket ones won't last beyond 30,000 kilometers. Installation is also crucial; improper tension adjustment can accelerate wear. Keeping a maintenance record is recommended to avoid forgetting.


