When you locate unusual noises on your Porsche 911 you commonly tend to worry. Especially when you feel a noise coming from the release bearing of your Porsche 911. It is instantly assimilated to an engine problem and can therefore be serious. As we know that you do not take these problems lightly, we have decided to create this article content to support you find the causes and free yourself from this matter as quickly as possible. To do this, we will first concentrate on the purpose and operation of the release bearing of your clutch, and in a second step we will look in detail at the different release bearing noises on Porsche 911 and their origins.
What is the role and operation of the release bearing on Porsche 911?
Role of the release bearing on Porsche 911
The release bearing of your Porsche 911 has a crucial purpose in the operation of your entire gearbox system. Indeed, its task is to liberate the gearbox from the rotation of the engine block via its action. This will allow you to shift gears. It is operated by the clutch pedal and then by the release fork, which, when it is activated, will press on the clutch and release the gearbox from engine rotation for you allow you to shift gears on your Porsche 911.
Objective of release bearing Porsche 911
Let’s now look at the technical side, the release bearing is composed of two parts, a first fixed part that slides only when the stop is pulled, or pushed (according to its type) and finally a rotating part that is composed of a bearing that will allow it to stay in contact with the mechanism and follow its rotation.
There are two distinct types of release bearing Porsche 911 :
- Pulled release bearing
- Hydraulic release bearing
It is the most unconventional of the two types of release bearing . This one, unlike the hydraulic version, is operated by a mechanical pulling system that will release the clutch disc. In this situation, the release bearing must be mechanically fixed to the mechanism.
The hydraulic release bearing, although more complex, is the type most used in modern vehicles. It is however more elaborate than the pulled release bearing. Indeed, it will be composed of a hydraulic tube that will receive the pressure directly from the clutch pedal.
More conventional clutch stop
Release bearing noises Porsche 911 and their origins
I feel a release bearing noise on Porsche 911 every time I drive and it stops when I release my clutch pedal
If you feel a noise from your gearbox, release bearing or clutch itself when your engine is running, but it ends when you press your clutch pedal, this noise often sounds like a bell noise, it is highly possible that your release bearing is the reason. Make sure that this noise stops when you disengage, in which situation it is time to replace the release bearing of your Porsche 911.
I feel a release bearing noise when my pedal is up and I feel jolts in my foot
If you feel too much or too little resistance when you press your clutch pedal, and it is connected with jolts that you can feel in your clutch pedal, then the stop/fork release/blades grouping is degraded. Indeed, this noise often comes from the broken fork that no longer allows the system to function normally.
I feel a grinding noise coming from the release bearing of my Porsche 911 when I try to shift gears and they do not shift
This matter shows up most often on models equipped with hydraulic release bearing. It is often linked to a clutch pedal that has little or no resistance. If you are in this circumstance and you feel a grinding or cracking noise coming from the release bearing of your Porsche 911, then you probably have a leak coming from your release bearing. It must therefore be changed fairly quickly or risk damaging your gearbox in addition to the clutch. If you have a noise coming from the gearbox of your Porsche 911 and it’s not from your release bearing, check this article to have more informations.
