What Causes the Abnormal Noise in the Clutch Spring of a Car?
1 Answers
Possible reasons for abnormal noise in the clutch spring of a car include: insufficient lubricant in the release bearing; no clearance between the release bearing and the inner end of the release lever; severe oil contamination or dust accumulation between the release bearing sleeve and the guide tube; excessive looseness in the spline hole of the driven plate and its spline shaft; annealing fatigue or breakage of the driven plate damping spring; loose rivets or exposed rivet heads on the driven plate friction disc; and excessive wear in the drive pins of a double-disc clutch and the pin holes in the intermediate pressure plate and pressure plate. The diagnostic and troubleshooting methods for abnormal noise in the clutch spring are as follows: 1. Slightly depress the clutch pedal to make the release bearing contact the release lever. If a 'rustling' sound is heard, it indicates abnormal noise from the bearing. If the noise persists after lubrication, it means the bearing is excessively worn or damaged and should be replaced. 2. Depress and release the clutch pedal. If intermittent collision sounds occur, it indicates axial movement of the release bearing, and the return spring of the release bearing should be replaced. 3. Continuously depress the pedal. If noise occurs when the clutch is just engaged or disengaged, it indicates loose or exposed rivets on the driven plate, and the driven plate should be replaced.
