Is the Envision equipped with a timing belt or a timing chain?

[BradyLee]

The Envision uses a timing chain. The timing chain and timing belt in a car's engine serve the same purpose. The timing chain is maintenance-free for life, while the timing belt needs to be replaced approximately every 60,000 kilometers. The timing system's transmission components are divided into two types: timing chains and timing belts. Below is some relevant information: 1. Advantages of timing belts: Timing belts have been used in engines for a long time, featuring mature technology, lower costs, and quieter operation. However, they require regular inspection and maintenance, typically needing replacement every 50,000 to 100,000 kilometers. 2. Advantages of timing chains: Timing chains offer significant benefits such as compact structure, high power transmission efficiency, high reliability and wear resistance, and being maintenance-free for life. However, compared to traditional timing belts, they tend to be slightly noisier. If you are unsure about the replacement interval for the timing belt, you can follow the maintenance schedule specified by the car manufacturer.