Frequently Asked Questions (FAQs)
1. Can you upgrade a clutch master cylinder?
Yes, upgrading your clutch often includes upgrading the clutch master cylinder. While the OEM master cylinder usually works fine, sometimes it may be old, leaking, or not functioning optimally. Upgrading the master cylinder can improve pedal feel and clutch operation.
2. How do I choose a clutch master cylinder?
Choosing a clutch master cylinder involves considering factors like pedal ratio, pedal travel, and caliper piston diameters. While it's possible to calculate the correct size based on these factors, it's often easier to start with a .750" master cylinder and make adjustments from there.
3. What are the 2 types of clutch master cylinder?
Clutch master cylinders are categorized into two types: integral reservoir systems and remote reservoir systems. These categories define how the reservoir is integrated with the master cylinder.
4. Does clutch master cylinder size matter?
Yes, the size of the clutch master cylinder bore affects the pedal feel. Generally, a smaller bore size provides an easier pedal feel, as long as the pedal motion ratio remains the same. Most manufacturers recommend a 6:1 pedal ratio for optimal clutch feel.
5. What is the lifespan of a clutch master cylinder?
A clutch master cylinder typically lasts between 50,000 and 100,000 miles before needing replacement. Modern cars are built with durable components that have a long lifespan.
6. Do you have to bleed clutch after replacing master cylinder?
Yes, after clutch repairs or replacing hydraulic components, it is essential to bleed the hydraulic release system according to the vehicle manufacturer's instructions. This ensures proper operation and eliminates air from the system.
7. Is a bigger or smaller master cylinder bore better?
The size of the master cylinder bore affects fluid volume and pressure at the caliper. A bigger bore provides more fluid but less pressure, while a smaller bore provides less fluid but more pressure. The choice depends on the desired balance between fluid volume and pressure.
8. What is the best clutch pedal ratio?
The ideal clutch pedal ratio for hydraulic clutch systems is 6:1. Achieving this ratio ensures that the pedal is easy to operate and provides optimal clutch performance.
9. Can a master cylinder be too big?
Increasing the slave sizes may require upgrading the master cylinder bore size to deliver more fluid to the calipers. However, choosing too large a master cylinder bore can result in a shorter pump stroke, affecting clutch operation.
