Clutch problems

Good afternoon,

Yes, it sounds like you may have a bad master cylinder. It is like a brake master cylinder and if the seals are bad, you have to pump it up.

I would replace both the master and the slave together and add new fluid for bleeding.

Roy

1. Disconnect hydraulic line at clutch cylinder.
2. Cap hydraulic line and master cylinder opening to prevent entry of dirt.
3. Remove cotter pin and washer retaining cylinder pushrod on clutch pedal and slide rod off pedal pivot.
4. Remove nuts attaching clutch cylinder to firewall and remove cylinder. When servicing the clutch master cylinder, inspect the cylinder bore for nicks, scratches and scoring, corrosion, pitting or roughness, cracks, porosity and excessive wear. Do not attempt to repair a damaged master cylinder by honing, and replace the master cylinder if the bore is damaged in any way. While slight discoloration of the cylinder bore is acceptable, the master cylinder can only be overhauled (resealed) if the bore is clean and smooth.
5. Reverse procedure to install. Torque cylinder attaching nuts to 11 ft. Lbs.

1. Raise vehicle and disconnect hydraulic line at cylinder.
2. Remove throwout lever to cylinder pushrod retaining spring.
3. Remove slave cylinder, heat shield, throwout lever pivot, washer and seal from clutch housing. On some 1983-86 models, fluid leakage from one or both of the clutch cylinders may be caused by formation of an abrasive substance in the system fluid due to a chemical reaction between the master cylinder to slave cylinder hose and the fluid. If cylinder leaks are observed on these models, proceed as follows:
a. Inspect system to determine which cylinder is leaking.
B. If slave cylinder is leaking, remove, clean and overhaul the cylinder. If master cylinder is leaking, remove and discard cylinder.
C. Remove and discard hose that connects master cylinder to slave cylinder.
D. Drain fluid from any cylinder not removed.
E. Install replacement master cylinder or repaired slave cylinder.
F. Install replacement hose 8953 004 162 for models with 4 cylinder engine, 8953 004 164 for models with 6 cylinder engines, or suitable equivalents.
G. Refill and bleed system as outlined, using DOT 3 brake fluid.
H. Verify proper clutch operation and ensure that all hose connections are tight and free from leaks.

Good deal.

They do not have to leak to be bad. The seals inside may not be producing enough pressure.

You are welcome.

Roy

That is an indication of air in the line.

Do you have a bleeder screw on the slave cylinder?

Roy

Okay, you cannot pump the pedal with the bleeder open. It will draw air into the system.

Open the bleeder with the pedal down then close it and let the pedal up.

Roy

Try the bleeding procedure I posted for you. That is a little different.

Roy

You could depress it with your fingers and then keep it depressed with wire ties for the test.

Roy

You need to wrap the wire tie from the rod to around the back of the body to hold the rod in.

Roy

You are welcome.

Roy

I checked with 3 different manufacturers and nobody makes the mater, line, and cylinder in one assembly.

Call the Jeep dealer parts department and see if they off it. They did in the later models.

Roy