recently when i shift into gear my clutch seems to only engage half way with the pedal all the way out. it will still drive but at half the power and when on an obstacle the engine will rev but my tires wont spin.

 

Sounds like your clutch is slipping.

The friction surface is prolly gone.

Moving to OEM Tech.

 

If you want help from us mobile app users you need to include more info in your xj like year engine tranny specs. Dumb app doesn't show sigs or any profile info that I have found anyway.

Anyway, could be bad clutch disc pressure plate flywheel master/slave etc. you'll be lucky if you don't have to drop the trans to fix it

 

Well, he said its got a clutch, so its most likely a manual....and since its a Cherokee its either the BA, which only went to 88, or the AX15 that was used in all the others...unless he has a 2.5l.

Either way, the rest really doesnt matter too much. Its clutch related, not much else plays into the issue...the motor doesnt matter, nor does the year honestly.

 

lol

 

The year would tell if it is internal or external slave which could make a big difference. Year and engine can tell what trans it has.

I think it helps to know the specs answering questions because if it a similar setup to what I've had I can speak from experience.

 

to help you guys out, his bio says 85, V4, manual lol

I would say the clutch is toast

 

A clutch is a clutch. A failed slave wouldn't let the clutch disengage...not slip.

 

When the clutch was engaged it would slip, not letting the power from the engine go to the tranny. We were on a hill in Moab. Wheels were on slick rock and the engine would rev but the wheels did not move. After we got back to town the clutch would not engage fully, just at the very end of the clutch pedal travel. We tried to bleed the system and it did not improve. I did notice a slight bit of fluid around the master cylinder plunger, which probably means I need to install a new master cylinder. However I think that if it was the only problem I should be able to put pressure in the system to a point of correct pedal position. Answer me this: If the slave cylinder is leaking will it not function partially? Do you think the clutch plate is shot?

 

The master, slave and lines need to make and hold pressure to RELEASE the clutch. Thrashed, missing, leaking, the clutch will remain engaged. (turns wheels). One rare exception, I've seen a corroded slave stick. I actually felt the piston on the first depression. Grrrrruuumch....then it was in, disengaged and that was it.

I didn't catch what year it is...on my 84 when the master leaked, it came out of the fuse box. (inside above the clutch petal). Dripped out off the fuses. Might want to watch for that. Here's something that might be helpfull installing, (AT LEAST) a new disk.

http://borntourist.com/gallery2/v/mo...tch/?g2_page=1

 

See below.

 

I do understand how a clutch works. I realize knowing every detail about his xj to answer a simple question is unnecessary. I don't think it hurts to know the basics for most questions. As it turns out he is having some issues with the master cylinder. Knowing he would most likely have to drop the trans to fix the clutch, I would have suggested converting it to a external slave if that was applicable via the year of the xj. People have helped me so much on here I try to be helpful on something I'm knowledgeable on, such as converting to an external slave on an ax-15, which I did on my mj.

And to the op I didn't mean to seem like I was coming down on you for not giving enough info. I was more mini ranting that I can't see sigs/vehicle specs on my mobile app, and didn't think I'd get grilled for doing it. At least the search function appears to be working!!

 

Have you ever done the internal to external swap?

Its a major pain, parts are hard to find, and typically its not worth it. You would be better off getting an external to start with. I know this because I am swapping my BA trans for an AX15, and its internal. A good friend, and fellow Staff member, did the same, and did the internal to external swap.

If you go direct to Jeep for the Master and Slave, they will last quite a long time.

 

I never said it is easy or that it is worth it in every situation....that's why I said I would *suggest it. I did it in my mj after someone mentioned it to me and I'm very glad I did it. Regardless i apparently will get flamed whatever I say in this thread so I'll cease to post!

 

No flaming, was just discussing the details of the swap. It can be a headache and a bit pricey.

Flaming and discussing the subject in depth are two very different things! Lol