Why Does the Clutch of a Manual Transmission Car Become Heavier?

[Olivia]

Possible reasons include excessive tension of the return spring, damage to the clutch booster cylinder, low compressed air pressure, insufficient lubrication, or an overly tight release bearing. Below are the reasons why the clutch of a manual transmission car becomes increasingly heavier: 1. To ensure that the clutch pedal returns quickly and accurately to its standby position when released, a return spring is designed at the pedal. If the heavy pedal phenomenon occurs after replacing a new spring, it is likely that the tension of the clutch pedal return spring is too high. 2. Many car clutches are equipped with a booster system, which normally makes operation easier. However, if the clutch booster cylinder malfunctions, it may result in insufficient boost, ultimately making the clutch pedal very heavy when pressed. 3. Most of the power driving the clutch booster comes from the compressed air in the air reservoir. If the compressed air pressure leading to the booster is too low, it will cause insufficient boost. Therefore, when such a fault occurs, the compressed air pressure leading to the clutch booster should be checked first.