What Is A Clutch?
The clutch in a modern vehicle sits between the engine and gearbox. A clutches primary function is to transmit or prevent transmission of drive from the engine to the gearbox. On most cars a clutch consists of 3 main parts; the pressure plate, the friction plate and the thrust bearing. The pressure plate is bolted to the engine flywheel. The friction plate sits between the engine flywheel and the clutch pressure plate. Typically the clutch is either hydraulic fluid or cable operated.
Hydraulic Clutch Operation
As you press your clutch pedal this operates the clutch master cylinder plunger inwards forcing fluid through pipe. The slave cylinder located next to the clutch is operated from the pressurised fluid forcing the clutch fork forwards. The other end of the clutch fork now forces the clutch thrust bearing against the clutch pressure plate diaphramn. The clutch plate which is splined to the gearbox input shaft is now free and drive is disengaged.
Cable Clutch Operation
As you may expect the drivers clutch pedal is connected to the clutch fork via the clutch cable which pulls the clutch fork when the clutch pedal is operated. This forces the clutch thrust bearing against the clutch diaphragm allowing the clutch plate to spin freely disconnecting drive to the gearbox
The clutch fork rests against the clutch thrust bearing. A simple but essential component the clutch fork is attached to either a cable or a slave cylinder depending on the method of operation. When the clutch pedal is pressed the clutch fork moves. ue to a fixed pivot point.
While most new car clutch linkages are self-adjusting, there are some tell-tale signs that will tell you if adjustment or replacement is required. For instance, if the clutch engages and disengages and the pedal is close to the floor of the car or the transmission "grinds" when changing gear, your clutch probably needs attention. For a free clutch check or a free quote telephone us on: 0114 2363617