Know Your Clutch System 

By November 20, 2018Auto Services

Purpose of a clutch 

The purpose of a clutch disc is to transmit the force from the engine to the manual transmission. When driving, the clutch is engaged with the gears so that transmits the power from the engine to the transmission. When the gear is changed, clutch is disengaged from the gears, which allows the shifting of the gear. Once the gear is shifted, the clutch is engaged back to the gears to transmit the force from the engine. The clutch plate often goes bad due to excessive usage. It has a defined period of life after which, it needs to be replaced. However, some clutch plates do need to be replaced earlier than usual because of excessive usage such as for one living in an area with dense traffic. Similarly, some clutch plates can last more than the expected lifetime.  

Clutch Assembly 

The clutch is more than just a plate for transmission. It contains a set of components that make the functioning of the system possible. Following are the main components of clutch plate. There might be fewer or some extra components in the clutch system of your vehicle, depending on the model. Nevertheless, following are the basic components of a clutch system.  

  • The clutch disc 
  • Cables 
  • Linkages 
  • Pressure plates 
  • Bearings 
  • Clutch fork 
  • Hydraulic mechanism 
  • Flywheel 

All of these components work together to make the functioning of the clutch possible. Although they are designed to last a long life, they do worn out with time. This depends on the usage of the car and more importantly, the traffic. The frequency of pulling and pressing the clutch and the overall usage determines the lifetime of the components. When a malfunction finally occurs, the inclusion of so many components makes it difficult to spot the cause of the failure. However, there are signs that you can use to diagnose the cause of the problem. Being familiar with these signs will save you from replacing a perfectly fine component.

Common S Clutch problems and their signs 

The engine races, but the car doesn’t go with it 

This is usually the result of a worn out clutch plate. This problem is known as clutch slippage. In this problem, the car accelerates but the vehicle moves very slowly. The worn out clutch plate has less surface to grip the flywheel and pressure make, which results in slipping motion, hence the name ‘clutch slippage’.  While the worn out clutch is the most common cause of clutch slippage, it is not the only possible cause of it. There could be issue with linkage adjustment, pressure plate or any cable.  

Difficulty in shifting the reverse gear 

Difficulty in shifting into reverse gear can be a result of linkage problem or damaged clutch plate.  

Unable to shift into any gear 

Not being able to shift is a serious problem. It could be a result of a problem in the hydraulic system. On the mechanical part, it could be a problem of bearing or linkage or any other part of assembly.  

Noise from the Clutch Pedal 

If you hear noise from the clutch plate, it could be a problem with the lubrication of the system. Over time, the lubrication dries out which results in light noise when pulling or pushing the clutch pedal. Whether your car supports a hydraulic clutch system or mechanical, either way the most probably cause is the drying of lubrication.  

Noise only when the car is neutral 

If you hear some noise when the car is in neutral but the noise stops when you release the clutch pedal, this could be sign of problem with the input shaft bearing.  

Clutch problem in new Subaru Brz 

If you’ve just bought Subaru Brz and the Subaru brz clutch is annoying you due to the dead travel before the pedal comes into effect, you’re not alone in this. By the default settings, the pedal has a high engagement point which can be annoying for some users. However, you can get it adjusted from a mechanic in no time. Different cars have different levels of engagement points, which is why there is a variation in the engagement points in different cars. This can be easily adjusted by a mechanic in no time.