First, remove the timing belt of the Peugeot 408. Then, align the marks on the two large gears at the outer end of the camshaft. There is a mark at the twelve o'clock position. After alignment, there is a scale on the plastic housing at the crankshaft end below. Rotate the crankshaft to align it with the zero scale. Once the timing is aligned, reinstall the belt. Below is more information about the timing belt: 1. The timing belt is a crucial component of the engine's valve system. It connects to the crankshaft and ensures accurate intake and exhaust timing with a specific transmission ratio. Clearly, the belt's lifespan is shorter than that of metal gears, so it must be replaced regularly. Belts are used instead of gears for transmission because they produce less noise, have minimal self-variation, and are easier to compensate. 2. Different vehicle models have different methods for aligning the timing belt. Generally, there are marks on the camshaft gear disk and crankshaft gear disk that need to be aligned. However, it is recommended to refer to the vehicle's repair manual for specific alignment methods. 3. The timing belt connects the camshaft and crankshaft, controlling the opening and closing of valves and the rotation of the crankshaft and the up-and-down movement of pistons. If the timing belt is not aligned correctly, it can lead to incorrect valve timing and piston movement. Minor misalignment may cause insufficient power and vehicle shaking, while severe misalignment can result in valves and pistons colliding, damaging both components. In such cases, the engine will fail to operate and require major repairs.
