(1) Phenomenon: clutch rattling occurs in the process of clutch engagement or disengagement and speed changes. For example, when the clutch is just engaged, sometimes there will be "sand, sand, sand" sound, engagement, separation or sudden changes in speed there will be "kla, kla" sound, and so on. Clutch rattling is due to some parts of the abnormal friction and impact caused by the different sounds according to the rattling sound and the conditions can be judged to produce rattling parts and causes, in order to take the corresponding maintenance approach.

(2) Causes and treatment.

(1) The clutch pedal has no free travel or the free travel is too small, at this time the release lever is always in contact with the release bearing, even if the car is stopped, there will be a noise. The free travel of the clutch pedal should be adjusted.

After the clutch friction lining is worn out, the clutch is often in half-engaged state. When the car is in motion, the clutch release bearing rotates and causes a noise. This situation can be eliminated by adjusting the free travel of the clutch pedal. If it cannot be eliminated by adjusting the first travel, the clutch lining should be riveted again.