Clutch and Flywheel Assembly (Cut-away) When replacing a clutch assembly always resurface the flywheel. As the clutch wears it can cause the flywheel surface to become un-even, much like a worn brake rotor. If a new clutch disc is installed on and old flywheel it can cause the clutch to chatter. If the flywheel is dual stepped (example shown) it must be machined the same way or the clutch clamping pressure will be incorrect causing the clutch to slip or not disengaged. Visit - Clutch replacement and Visit - Clutch failure
Clutch Pressure Plate, Disc and Throw-out Bearing
Typical Clutch Fork
Standard Transmission When a throwout bearing starts to fail it can make a chirping noise that is audible when the clutch pedal is depressed or released. If the chirping noise stops or starts suspect this bearing.
Throwout Bearing Helpful Information When cars were first invented the only option for a transmission was manual (standard.) This gear box was just that a box filled with gears that rotated together while engaging particular gears to different gear ratios. This operation would not be possible without the use of a clutch assembly. Common Problems
- Clutch slip, which occurs when the clutch disc has worn out and replacement is required.
- Clutch chatter, this occurs when the pressure plate has failed not producing the correct amount of pressure to hold the disc securely.