Does a Newly Replaced Pulley Need a Break-in Period?

[BrooklynMarie]

Newly replaced pulleys require a break-in period. Pulley Structure: In the transmission system, the belt connects two discs: the outer disc is the fixed disc, and the inner disc is the pulley (also known as the movable disc, which can move axially). Introduction to Pulley Weights: The pulley weights (also known as movable weights, which can move radially) are components inside the pulley. There are six weights, each installed in a sliding groove, and they are affected by the engine's RPM. Function of the Pulley Weights: If the pulley weights are heavy, the car's acceleration performance is not very good, resulting in sluggish speed increases and a longer time to reach high speeds. However, when the weights slide to the end of the pulley, the inertia is greater, and the engine's RPM becomes lower during operation. This makes the car more fuel-efficient during prolonged high-speed driving.