Replacing slave cylinder - JeepForum.com

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post #1 of 30 Old 03-30-2010, 08:37 AM Thread Starter
Roadyy
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Replacing slave cylinder

So heres what I'm thinking and the tranny guru's input. I know the po had a new clutch system,including mc,lines,slave,clutch,pressure plate and throw-out bearing(after market) installed before I bought it. I spent an hour or so bleeding the system saturday and it did no good,yes we did the pump up and blled technique which noone likes but only way I could figure out to do it. It only has an alan screw on top of s/c and didn't see any other way to do it.
My question is can I replace the existing s/c with an factory s/c without changing everything?
It seems to me that the s/c rod is not pushing out far enough to disengage. It is no different than no clutch other than keeping it from bogging down at stop.
I thought about completely rebuilding tranny and even checked prices and they going for around 200-300 bucks for the kit with syncs.
Thanks in advance.

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post #2 of 30 Old 03-30-2010, 08:40 AM
Burnerman
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the best bet is to just buy the complete pre filled slave and master.

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post #3 of 30 Old 03-30-2010, 08:58 AM
Tshark299
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I was under the impression that the factory will only sell you the whole master/slave setup, not just the slave individually. If you try another parts store slave you can try just replacing that, but then you'd still have to bleed it. I'm running my original '87 master with a used '95 external slave and had no trouble bleeding it.

'87 YJ Laredo - 4.0L, AX-15, NP231, 4.10s: 3.5" BDS, 31" Muds

'95 XJ - Donated drive train to the YJ, Parted out the rest

'51 CJ-3A - Buick 225 V6: Painless Wiring Harness, Warn Overdrive & Hubs, 2" Lift, 31" Muds
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post #4 of 30 Old 03-30-2010, 09:12 AM Thread Starter
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It's an internal s/c. Either way the tranny has to come down. I was just curious what your input would be as to correct the problem. Seems senseless to have to buy everything new all over again if its only one part that is defective...
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post #5 of 30 Old 03-30-2010, 09:29 AM
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Quote:
Originally Posted by roady2u View Post
It's an internal s/c. Either way the tranny has to come down. I was just curious what your input would be as to correct the problem. Seems senseless to have to buy everything new all over again if its only one part that is defective...
Quote:
Originally Posted by roady2u
It only has an alan screw on top of s/c
If you have a '94, and you mentioned turning a bleeder screw on the top of the slave cylinder, then it's external. Transmission should not have to come down.

'87 YJ Laredo - 4.0L, AX-15, NP231, 4.10s: 3.5" BDS, 31" Muds

'95 XJ - Donated drive train to the YJ, Parted out the rest

'51 CJ-3A - Buick 225 V6: Painless Wiring Harness, Warn Overdrive & Hubs, 2" Lift, 31" Muds
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post #6 of 30 Old 03-30-2010, 09:36 AM Thread Starter
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I'll take pics this evening to show it. It has an alan screw rite on top at back by the single line going in. That's what confused me about it. The book shows it having a bleeder line and I see nothing of another line around the s/c other than the one going in the end of it.
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post #7 of 30 Old 03-30-2010, 10:54 AM
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I thought 94's had internal slaves
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post #8 of 30 Old 03-30-2010, 10:57 AM
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I believe they switched in 91 or 92. Not for sure tho. My 88 has an internal.

I'm a more proactive person.
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And you keep the terrorists in check before you get your *** blowed off.
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post #9 of 30 Old 03-30-2010, 11:34 AM
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'87-'93 YJs had internal slave cylinders, '94-'95 are external.

'87 YJ Laredo - 4.0L, AX-15, NP231, 4.10s: 3.5" BDS, 31" Muds

'95 XJ - Donated drive train to the YJ, Parted out the rest

'51 CJ-3A - Buick 225 V6: Painless Wiring Harness, Warn Overdrive & Hubs, 2" Lift, 31" Muds
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post #10 of 30 Old 03-30-2010, 06:41 PM Thread Starter
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here are the best pics I could get of the slave. Kinda ard to get a digital camera in position next to tc skid.

Ok so what do I need to know?
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post #11 of 30 Old 03-30-2010, 06:43 PM
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Get the pre filled slave and master. You have an external slave. $150 aftermarket and a half hour or less to replace...4 nuts and 1 clip. bolt it in and go.

96 ZJ.
05' Grand Cherokee Limited, 2"OME lift
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post #12 of 30 Old 03-30-2010, 06:46 PM Thread Starter
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This is brand new not even 200 miles on it and it is aftermarket....
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post #13 of 30 Old 03-30-2010, 06:52 PM
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If it doesn't work it's no good. Does it not release the clutch? Did it work? Take it back to whoever installed it and see if they'll warrenty it. You need to replace them as 1 piece. There are may people that have had problems with some of the cheaper aftermarket setups.

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post #14 of 30 Old 03-30-2010, 06:57 PM Thread Starter
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It is hard to get into gear from stop 8 out of 10 times. I can hear it working but it just seems like its not going far enough to make a smooth shift. One on the road it's ok til down shifting. If it's replacement time, I only need to replace m/c and s/c not clutch pressure plate and throw-out bearing rite?
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post #15 of 30 Old 03-30-2010, 07:16 PM
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The master and slave may cure your problem. What fluid do you have in the trans?

96 ZJ.
05' Grand Cherokee Limited, 2"OME lift
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