Does the MG ZS use a timing belt or a timing chain?
1 Answers
It uses a timing chain. Although the basic functions of timing belts and timing chains are the same, there are certain differences in their working principles. Working principle of timing belts: The inner side of a timing belt has many rubber teeth. The timing belt uses these rubber teeth to mesh with the grooves on the corresponding rotating components (such as the camshaft and water pump), enabling the engine crankshaft to drive other moving parts and maintain synchronized operation of the driven components. A timing belt can be figuratively seen as a soft gear. Additionally, timing belts require the cooperation of accessories such as tensioners (automatic or manual adjustment of tightness) and idler pulleys (guiding the belt's direction) during operation. Working principle of timing chains: Timing chains operate by using high-strength metal chains to connect the sprockets of components like the crankshaft and camshaft, keeping them synchronized. Due to the high-speed movement between metal parts, which causes rapid wear and high temperatures, corresponding lubrication systems must be designed for cooling and lubrication. Moreover, engines designed with timing chains also face the issue of friction noise between metal parts. To address this, manufacturers need to take various measures, such as designing optimized chains. Solving these problems inevitably increases the design and manufacturing costs of the engine.
