Clutch hydraulics is very important part of the whole clutch system. Clutch hydraulics not working properly can cause the clutch to malfunction and transmission to not shift properly.
A Plus transmission personals are ready to diagnose clutch hydraulics problems properly and accurately the first time
So we can suggest proper transmission repairs to our customers.
There are two kinds of clutch systems:
1- Mechanical clutch system
2- Hydraulic clutch system
- Most of the newer vehicles are equipped with hydraulic systems due to their self adjusting feature, older mechanical clutches needed constant adjustment to maintain proper clearance between the clutch release bearing and the clutch pressure plate. Clutch hydraulics has three main components: Master cylinder, Slave cylinder and clutch fork. The master cylinder either has a reservoir attached to it, or it is connected to a remote reservoir, this reservoir contains the hydraulic fluid ( most systems use brake fluid), that will be forced through the brake line in to the clutch slave cylinder.
It is the hydraulic pressure entering the clutch slave cylinder that activates a rod in an external slave cylinder against the clutch fork. The clutch fork will apply pressure against the pressure plate through the clutch release bearing.
In an internal clutch slave cylinder system, the slave and the release bearing are one unit, eliminating the need of a clutch fork.
The pressure being applied by the release bearing forces the pressure plate to decrease the pressure it has against the clutch disc, once this is achieved, the transmission is not longer turning along with the engine, and it is now that you can place the vehicle in gear without damaging the transmission.
Leaky or defective slave and/or master clutch cylinders can keep the cylinders from building the necessary amount of pressure. Air in the hydraulic line can affects the hydraulics by taking up space the fluid needs to build pressure. Any of these problems can be found by proper diagnosis.
It is very rear in hydraulic clutch system that clutch and clutch hydraulic both go bad at the same time. For this reason it is very important to diagnose the clutch problem properly.