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Unread 08-16-2011, 07:01 PM   #1
caseyjoneswys
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1988 YJ Wrangler 
 
Join Date: Jul 2007
Location: NEW JERSEY
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Clutch problems after replacing slave

So I just put everything back together after replacing the internal slave on my '89 YJ. After bleeding (alot) and tweaking I only get pedal pressure about every other time I press the peddle. Sometimes after pumping I can build up pressure but then it is all gone next time I go to clutch. Any input?

Thank you

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Unread 08-16-2011, 08:17 PM   #2
srdart67
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2002 WJ 
 
Join Date: Apr 2011
Location: St. Paul, mn
Posts: 359
Are you losing fluid? If your not losing fluid that would lead me to believe your clutch master cylinder is failing.
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Unread 08-17-2011, 03:46 AM   #3
caseyjoneswys
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1988 YJ Wrangler 
 
Join Date: Jul 2007
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Not losing fluid. I replaced the master less than a year ago (not saying that necessarily means anything). Any way to tell if it is the master or a faulty slave? Troubleshooting hints?

Thanks
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Unread 08-17-2011, 07:21 AM   #4
Matt24138
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1993 YJ Wrangler 
 
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Location: Bethany Beach, Delaware
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Make sure the fittings are all tight. Bleed it some more. I had to bleed mine for 2 hours after replacement.
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Unread 08-17-2011, 07:31 AM   #5
Matt24138
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1993 YJ Wrangler 
 
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You can ake the master off and bench test it btw. When I took mine off it was leaking at the rod just a little bit. I never would have noticed until the leak got bigger. It was just enough to let air in. Also check the little o ring on the hydraulic line. They can wear out easily. As far as bench testing there ate tons of tutorials online.
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Unread 08-17-2011, 08:43 AM   #6
Berniebikes
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1988 YJ Wrangler 
 
Join Date: May 2010
Location: Williamsburg, VA
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I just finished my internal slave replacement on an 88. I filled the slave before putting it in place and then bled the devil out of it when connected. I was careful to make sure there were no leaks anywhere. it took about a bottle of brake fluid to fully bleed it till there were no air bubbles coming out the end of the hose, only a steady stream of fluid. I could tell when normal pressure hit the pedal, it was mushy till all the air came out. Good luck! Would second the suggestion to bench test the master.
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Unread 08-17-2011, 04:37 PM   #7
caseyjoneswys
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1988 YJ Wrangler 
 
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Location: NEW JERSEY
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Good Ideas. Thanks very much
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