Clutch slave cylinders are classified into two types. 

These components regulate the engagement and disengagement of manual transmission clutches. 

When you press the clutch pedal, a piston in the clutch master cylinder opens, allowing hydraulic fluid to flow into the slave cylinder. 

The slave cylinder then engages the clutch fork, pivoting it away from the engine flywheel, which is usually brake fluid.

The first type is referred to as a pull-type slave. 

This cylinder is constructed of billet aluminum and has a stainless steel pushrod. 

The push-rod-actuated version has a longer stroke than most cylinders, which ensures complete clutch release.

External slave cylinders have a pushrod, piston, and internal spring and are mounted outside of the bell housing. 

They usually have a rubber boot around the moving parts and a release bearing to keep the diaphragm spring in preloaded contact. 

To reduce surface wear, the pushrod tip is usually tipped with a mushroom-shaped bushing. 

The overall length of the pushrod is controlled by the plastic bushing at the end.

The failure of a clutch master cylinder may cause the clutch lever to feel soft. 

However, puddles are unlikely to form. 

The fluid, however, may leak into the slave cylinder and impair clutch performance. 

If this happens, it’s time to change the clutch slave cylinder. 

Check the reservoir in the clutch master cylinder as well. 

If the master cylinder is leaking, it must be replaced.

When the clutch slave cylinders fail, the clutch pedal does not drop to the floor when you press it. 

To change gears, you’ll have to pump the clutch pedal a few times. 

This is not ideal because it will make the pedal feel flimsy. 

In severe cases, the slave cylinder fails completely. 

This could mean that the entire clutch master cylinder has failed, causing the brake pedal to become spongy.

When removing the master cylinder, make sure your vehicle is parked on a flat surface. 

To access the slave cylinder on some vehicles, jack stands or lifting may be required. 

Because fluid is used, you should also wear safety glasses. 

When working with fluid, it is best to wear protective clothing and eyewear. 

If you are unable to remove the master cylinder, the slave cylinder may have to be removed.

The master cylinder is installed on the firewall, while the slave cylinder is installed on the bellhousing. 

The master and slave release systems are linked by a hydraulic line. 

The slave cylinder pushes the clutch fork downward when the clutch pedal is depressed. 

Adjustable slave cylinders are used in a hydraulic master/slave release system. 

Non-adjustable slave cylinders, on the other hand, are more difficult to install.