Why Does the Clutch Shake?
2 Answers
There are several reasons why the clutch shakes when starting: 1. The driven disc lining is broken, or the clutch compression spring is fractured, causing the clutch to vibrate. 2. Uneven pressure distribution on the car clutch, possibly due to loose or broken springs, or incorrect pressure positioning, leading to clutch instability. 3. The main drive disc is bent, or the clutch lever is caused by uneven separation lever heights. 4. Insufficient lubrication of the release sleeve and release fork shaft, resulting in clutch vibration. 5. The tension of the clutch compression spring is too high, causing the clutch to vibrate. 6. Clutch slippage or clutch disc burn-up.
I've been driving a manual transmission car for ten years, and clutch shudder is common during starts, especially on slopes or under heavy loads. This is mostly due to uneven wear of the clutch disc from prolonged friction, leading to unstable power transmission. If the flywheel surface is dirty or warped, it can also make the shudder more noticeable. Aging pressure plate springs or loose bearings should not be overlooked either. I remember one long trip where the car shook severely, and upon inspection, it was found that misalignment during installation caused the issue. Driving habits are crucial—constantly accelerating in the semi-engaged state accelerates wear. It's advisable to regularly visit a professional shop to check the clutch system and replace parts promptly, ensuring both safety and longevity, and not delaying until the problem worsens.