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  1. #1
    Junior Member
    Join Date
    Jul 2011
    Posts
    5

    clutch wont bleed out.

    I cannot for the life of me get my clutch to fully bleed out on this 85 MJ any one got any tips maybe something I missed the master and slave are brand new. the clutch will work one time then it wont get a pedal or atleast wont open the clutch all the way. everything looks good but just wont release the clutch all the way.
    here are the ways I tried bleeding it already
    1) just like the brake have a second person pump it up three times and open the bleeder screw.
    2) just open the bleeder screw and let gravity do the work.
    3) open bleeder while someone pushes the pedal down and close the bleeder before the pedal hits floor board.
    thanks Jeff
    P.S. nothing is leaking so its not a leak in the lines anyway.
    parts are all brand new from autozone lifetime warranty I found the old master and slave had gear lube in them so I flushed the line with brake clean then clean new brake fluid the fluid is new and clear.

  2. #2
    Junior Member
    Join Date
    Jul 2011
    Posts
    4
    this is no help but i've got the same problem with my 86. it had been working fine and then a week of sitting and no pedal. a friend of mine helped me bleed the slave and it kinda got a pedal but a day later back to the floor. i replaced the slave and master, lines look good running fluid through them like crazy but cant get any pressure. it just kinda dribbles out when open the bleed screw. one friend mechanic says that that the dealer sells this as a unit complete with lines while another mechanic friend says that he has a special tool that makes the job easy. just cant get either one of them to find the time so im looking for suggestions before i tear back into it

  3. #3
    Junior Member
    Join Date
    Jul 2011
    Posts
    6
    When these were new at the dealership in the olden days, they were crapping out left and right. Part of the problem was that the original cylinders were made in England. As if that wasn't bad enough, they required Castrol brake fluid, GT LMA. As people added Dot 4 to the systems, and the fact that the British can't make anything with rubber, failure rate was high. What Jeep found out later, as a result of high failure rates on replacement cylinders, is that the brake fluid combos were reacting with the rubber inside the hose between the two cylinders. This reaction made a gritty crap float around in the system ruining the new cylinders. Replacing the hoses with both cylinders became the recommended repair procedure.

    To top that off, the system was a bear to bleed. We tried all the normal procedures. What ended up helping was once we got some pedal resistance, we stopped bleeding and pumped the clutch pedal about 50 times non-stop and then let the system set for 5 to 10 minutes. I guess all the air rose to the top or something. Then you could continue bleeding the system but only using the Pump, Hold, and Open Bleeder for a few seconds before the pedal hit the floor method.


 

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