Why is the car clutch pedal hard to press?
1 Answers
The car clutch pedal being hard to press can be attributed to the following 5 reasons: 1. Excessive return spring tension: To ensure the clutch pedal returns quickly and accurately to its standby position when released, a return spring is designed at the pedal. If the pedal becomes heavy after replacing the spring, it may be due to excessive tension in the clutch pedal return spring; 2. Damaged clutch assist cylinder: Most car clutches use an assist system, which normally makes operation easier. However, if the clutch assist cylinder malfunctions, it may result in insufficient assistance, ultimately making the clutch pedal hard to press; 3. Low compressed air pressure: Most of the power driving the clutch assist comes from compressed air in the air reservoir. If the pressure of the compressed air reaching the assist is too low, it can cause insufficient assistance; 4. Insufficient lubrication: The clutch is driven by the assist cylinder through some mechanical structures to separate the pressure plate. There are several points within this structure that require lubrication. If lubrication is insufficient, excessive friction can cause the clutch pedal to become heavy; 5. Overly tight release bearing: If the fit clearance between the release bearing and the guide sleeve is too small, it can cause excessive friction, wasting driving force on the friction between the release bearing and the guide sleeve.
