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E34 (1989 - 1995)

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  #1  
Old 03-11-2013, 06:26 PM
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TWard TWard is offline
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Anybody messed with a slave....

So I put everything back in my car today, after getting a suck fill plug out, but i ran into a problem. I hop in the car and there is no clutch pedal, it just falls to the floor.

So I am slightly confused. What should I do next?

Bleed the hydraulics?
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  #2  
Old 03-11-2013, 07:07 PM
MySatinDoll MySatinDoll is offline
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Yessir. Bleed till it comes back.
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  #3  
Old 03-11-2013, 08:17 PM
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but the question is why did it do that? if i just removed it from the housing why does it need to be bleed?
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  #4  
Old 03-12-2013, 01:13 AM
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_Ethrty-Andy_ _Ethrty-Andy_ is offline
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did you disconnect any of the lines and/or open the bleeder screw and/or let the fluid run down as the pressure came off the slave?
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  #5  
Old 03-12-2013, 06:11 AM
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Monsignor Monsignor is offline
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If you took the slave out still connected to the lines, the pressure of the sustem (braks & clutch) wouldve either shot or slowly pushed the slave piston out. If not, did you see fluid dripping off of the slave piston? it may not be sealing correctly causing the loss of pressure gradually while you were working on the fill plug. Possibly replace the slave and please double check all the lines...
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  #6  
Old 03-12-2013, 07:41 AM
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Lines are good, and the slave is brand new, but it has been bleed in the car before I had a clutch pedal before I took the trans out. whenever it stops rainning ill get under and try cracking the bleeder and see what I get.
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  #7  
Old 03-12-2013, 08:21 AM
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master is good too?
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1995 525iA 250k mi
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2003 350Z 88k mi

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  #8  
Old 03-12-2013, 12:33 PM
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Master is good just, the slave and master was replaced with the trans.
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  #9  
Old 03-12-2013, 12:42 PM
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I would just give it a good bleed
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2003 350Z 88k mi

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  #10  
Old 03-12-2013, 07:42 PM
MySatinDoll MySatinDoll is offline
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SUPER EDIT!!!!!!!:

If the old slave was replaced and the system not rebled. Air will get into the system.
Improper bleeding will cause it to fail.

(I say this loosely for I don't have the facts)
If you had the trans pulled and parts replaced.
The lines and /or the slave cylinder had to be disconnected from the trans.
This being the case air will enter the system.
Whoever did the work probably didn't notice for it will firm up but not to spec.

As a result the trapped air probably travelled to either the brake fluid reso, or the slave cylinder (God forbid).
That in itself will cause the clutch pedal to drop to the floor. For the system will be unbalanced and/or fail.
As far as the master is concerned you have to remove the kick panel to see if it's leaking.(not necessarily true but worth a look see.)

I hope it was just a pocket that travelled back to the reso. For that way your slave will still be good.
Otherwise... You may have a blown seal in the slave cylinder. Which would suck big time.

The only other thing I can think of is that when the clutch and pressure plate were installed. If the slave wasn't removed.
The plunger on the slave cylinder could have been pushed in too far or screwed with it some how.
Knocking it off position or the plunger ejecting from misalignment can cause the pedal to drop also. But it's rare.

simply put. If you ever bled brakes... it's the same scenerio just with your trans.

IMO Bleed it again till it comes back. If it doesn't then we've all pretty much outlined what the causes can be.

Hope this helps.
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Every once in a while the Lion has to show the Jackals who he is...
- Christopher Walken "The Lion Speech"
95 e34 525 5 spd S52 Swap... The new Garden State Grocery Getter projekt.

Last edited by MySatinDoll; 03-12-2013 at 08:02 PM.
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  #11  
Old 03-12-2013, 07:51 PM
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TWard TWard is offline
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Yea i bought it and replaced it when I put the 5 speed in, then had to take the trans back out so I hung the slave with a zip tie and then reinstalled the trans and slave.

So it was bleed and working but unbolting it and bolting it back will make it not work? not to sure why because no fluid was moved.
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  #12  
Old 03-12-2013, 08:09 PM
MySatinDoll MySatinDoll is offline
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Quote:
Originally Posted by TWard View Post
Yea i bought it and replaced it when I put the 5 speed in, then had to take the trans back out so I hung the slave with a zip tie and then reinstalled the trans and slave.

So it was bleed and working but unbolting it and bolting it back will make it not work? not to sure why because no fluid was moved.
Ok stupid questions time.

How did you bleed it?

Did you use the bleed screw with a hose attached to one end and the other end in a small container with fluid in it?

When bleeding, did you open the screw, push the pedal down. Close the screw. Then lift it back up?

Were you keeping tabs on your brake reso at a certain level or fill when it started getting low as you bled?
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Every once in a while the Lion has to show the Jackals who he is...
- Christopher Walken "The Lion Speech"
95 e34 525 5 spd S52 Swap... The new Garden State Grocery Getter projekt.
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  #13  
Old 03-13-2013, 05:45 PM
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TWard TWard is offline
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Mein Auto: 91 e34 525i
I reverse bleed it, and had a perfect clutch pedal removed trans and its gone
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  #14  
Old 03-13-2013, 09:30 PM
MySatinDoll MySatinDoll is offline
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Mein Auto: 1995 e34 S52b32/5
Have you attempted any of the advise given?

IMHO that's where you need to start before reposting.

I'm not trying to be a jackwagon.
However you're going to have to get your hands dirty now.
The hydraulic system in these cars are simple at best.
Meaning the issues can be resolved rather quickly compared to more modern cars.

Once you report back we can help you through the next step.
Otherwise we're just throwing poop at the wall hoping something sticks.

So get to work and let us know.
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Every once in a while the Lion has to show the Jackals who he is...
- Christopher Walken "The Lion Speech"
95 e34 525 5 spd S52 Swap... The new Garden State Grocery Getter projekt.
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