Common Faults and Troubleshooting Methods of Car Clutches
When starting the vehicle, the vehicle still struggles to move even after the clutch pedal is fully released. While driving, the vehicle speed fails to increase with the engine speed, and the driver feels a lack of power. In cases of severe slippage, a burning smell from the clutch friction plate can be detected.
Causes of Car Clutch Malfunctions & Corresponding Solutions
1. Excessive wear of the driven disc friction plate, which causes the pressure plate to move forward and reduces the spring elasticity. → Solution: Replace the friction plate of the driven disc or the entire driven disc assembly.
2. Improper clutch assembly, leading to reduced pressure exerted by the pressure plate on the driven plate. → Solution: Reassemble the clutch carefully in accordance with the specifications.
3. Broken or weakened pressure springs. → Solution: Replace the springs or check whether springs of different colors are installed in the correct positions.
4. Warpage of the clutch pressure plate or clutch cover due to improper assembly. → Solution: Reassemble the components; if necessary, straighten or surface-grind the warped pressure plate or clutch cover.
5. Contamination of the driven disc friction plate by oil. → Solution: Check if excessive grease has been applied to the front and rear clutch bearings and splines; thoroughly clean the oil-contaminated friction plate with gasoline and dry it completely.
6. Ablation of the pressure plate and friction plate caused by overheating. → Solution: Surface-grind the clutch pressure plate or replace the friction plate.
7. No clearance in the master cylinder pushrod. → Solution: Readjust the pushrod to ensure proper clearance.
8. Excessive grinding of the pressure plate, resulting in a thinned working surface. → Solution: Inspect the pressure plate after surface grinding; replace it if the thickness is below the allowable limit.