I know a lot of folks all over the Internet have asked where the heck is a step-by-step for replacing the JK's clutch master cylinder. Well, I did mine yesterday and shot photos, which are now on my FB page. Each photo has a caption that explains that step, so don't look at the photos in full screen because you'll lose those steps. I will say this a quite a bit more time consuming and difficult than any other master cylinder I've replaced. Part of that was because there weren't instructions to tell me wrench sizes, and such, which sometimes made things more difficult than they should have been. I have provided that info in the album. Still, having to move the brake booster out of the way because you can't rotate the master cylinder to free it from the firewall is just poor engineering.

If you're doing this, read all of the way through because at the end we figured out a little bit better access that would make some earlier steps easier. This is basically removal--install is the reverse, followed by bleeding the clutch hydraulic system. However, I inadvertently did not get the connection to the slave cylinder on there all the way, and it started squirting fluid around the engine bay. That effectively pre-bled the clutch master cylinder. And because I was careful to plug the brake fluid reservoir (where the clutch gets its fluid), I had no air in the lines up there. And the slave cylinder was pointed up the entire time, so never drained out. So, once I finally did get it all back together, I gave a few pedal pumps and almost full system pedal was restored. Enough to drive it! So I did, and the pedal is now feeling pretty normal. Otherwise, you'll have to get under the Jeep and loosen the bleed valve on the slave cylinder and follow bleed procedures to remove any air from the system.

https://www.facebook.com/media/set/?...1&l=9267ca2cad

Good luck!

 

Good One Mark... Thou sorry to say, Facebook is not my cup of tea.. Might I suggest that you repost this in the write up section?

 

I may later. Anyone, even those without a FB account, should be able to view the album. If anyone would like to do it themselves, they are welcome to use my images--please just let me know so that I don't end up duplicating someone else's existing write-up. And give me credit for whatever work you copy.

 

Right, give credit where credit is due.. I run into this all the time and find my images posted somewhere else.. and even thou many of these sites now incorp a system that is supposed to not allow for download image copy etc.. there are workarounds..

 

Thank you for posting this, as i searched high and low and could not find anything for a JK. I decided to just remove the slave/master all at once since they are both the original cylinders. Made life a lot easier not having to deal with seperating the lines/bleeding

 

You're welcome. It is also now in the write-ups section.