91 MJ Clutch Issues - JeepForum.com
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post #1 of 2 Old 08-27-2013, 08:58 PM Thread Starter
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1995 YJ Wrangler 
Join Date: Dec 2008
Location: Greenwood
Posts: 1,538
91 MJ Clutch Issues

Changed the internal slave, clutch, pressure plate etc several months ago and the clutch worked great after that until the plastic end on the master cylinder push rod broke. Replaced master cylinder and now it does not shift correctly. We have bled it several times. When the jeep is cold it shifts pretty good but as it warms up it seems to get harder to shift. Grinds terribly going into reverse most of the time. Occasionally it will slip right in reverse with no issues, other times I have to kill it and shift to reverse then start it up again. It is a high rev grind, (seems like things are spinning at a high RPM) not your normal slow grind then falls into gear.

The clutch feels good but feels sort of like it does not have enough down travel room to totally dis-engage the clutch, like you hit the floor board before it goes down far enough.

Could it be possible that the master cylinder came with to short of a linkage rod?? I don't think it is the clutch because it shifted to good with the old master cylinder until we put this one on it.

Bad Part possibly???

(Hank is Yellow Lab) He loves it!!
95yj 4.0L, 4" RC Lift, 8.8, Aussie Locker, Posi-Lok, Rock Sliders, 1" Booms, 33 X 12.50's, Rhino Lining, KC Day Lighters, Rock Bumpers, LED Dash Lights, XRC10 Winch

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post #2 of 2 Old 01-18-2014, 11:26 PM
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1987 XJ Cherokee 
Join Date: Jul 2010
Location: Central
Posts: 631
We was bleeding the clutch out tonight and blew a line.
Before it blew I could see the lines flex with the pressure.
You could still have some air in it.

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