Menu toggle

987 clutch slave cylinder

nicholas.clare

nicholas.clare

PCGB Member
Member
Has anyone managed to replace a 987 clutch slave cylinder? I have managed to bleed it to solve a clutch-on-floor issue but that did not fix it. So I think the next step is a new slave. Getting to it to bleed it was difficult enough but removal looks very challenging.


Can anyone offer some guidance / tips?
 
Thanks Jeff. I am pretty sure the slave. The workshop manual says, start with a bleed and if that does not cure it then replace the slave. Finally if that does not work, by elimination, the master.


I have 101 projects for your Boxster but that is based on a 986 which looks easier. The videos I have seen look like you need to be at least double-jointed with a periscope for a head to get in there. You also need to be savvy on what you need to disconnect to get to it and that is the bit I am concerned about.
 
nicholas.clare said:
Has anyone managed to replace a 987 clutch slave cylinder? I have managed to bleed it to solve a clutch-on-floor issue but that did not fix it. So I think the next step is a new slave. Getting to it to bleed it was difficult enough but removal looks very challenging.


Can anyone offer some guidance / tips?


Have you tried reverse bleeding by pumping fluid in from the bleed nipple - this can often sort out issues with air in the system.


I use an oil can with brake fluid in it, connect a pipe onto the brake nipple and then pump the fluid in from the oil can, usually gets rid of difficult to reach air bubbles.
Click to expand...
 
Hi All. I thought I would share an update on this. I got some professional help to get the slave replaced. It is clearly possible to do so with out removing the transmission. The guy did remove the tray under the transmission to make it easier to access. All-in-all it did take him about three hours.


The old slave came-out and he said there was nothing wrong with it. He was right as the problem is still there. Clutch on the floor, can’t select a gear and travel feels awful. Looks like it is the master cylinder. So that is my next challenge.
 
Right this is getting tedious. I have changed the master cylinder today. Was a bit fiddly but the tips I had to take the car seat out and the battery tray worked a treat. All fitted and bled and guess what, more or less the same issues. Difficult to change gear, then suddenly all good and then wont allow any selection. Any thoughts from anyone? Could this be something mechanical or maybe clutch sensor - would that prevent gear selection?



 
That's disappointing to hear Nicholas. As far as I'm aware, in the electrical loop there's only the clutch pedal switch which prevents starting the engine unless the pedal is depressed, so it sounds as though your problem is mechanical.

If the problem's clutch-related it could be the throw-out mechanism, release bearing or the clutch itself or maybe the problem is one of gear selection? There are two cables running from the gearlever to the gearbox and if there's too much slack in one or both of them they may not be able to provide a reliable gearchange. From your description that gearchanging is a bit hit-and-miss it sounds to me more likely to be that rather than the clutch, so probably worth checking that first, particularly the integrity of the connections at the gearbox end.

Jeff


 
Thanks Jeff

I can change gear really easily when the engine is not running as soon as it starts it is an issue. The other thing that makes me think it is mechanical / clutch is that the peddle position moves about and also it does not come-up all the way once depressed.


I am going to get the mechanic on it. I will report back on the outcome as this is an interesting thread if you at trying to diagnose hydraulics vs mechanics.
 
A wise decision to get a mechanic on the job Nicholas. The pedal motion doesn't sound right, so that will be a good starting-point. There's a component called a Coupling Servo Spring which is designed to assist clutch pedal motion whose failure could be a contributing factor.

It'll be interesting to hear what transpires. Keep us posted.

Jeff
 
Hi All and thanks for your support. Well the good news is the car is fixed! Not a hydraulic problem at all.


I took to a great garage in Bisley and they sorted it pronto. The transmission had to come-off and they found that my clutch, which was fitted last year, had not be done properly. The bolts not torqued down correctly. They re-fitted (had a new flywheel) and it works perfectly. So, I now need a conversation with the last mechanics who fitted my clutch incorrectly and changed my slave cylinder and let me change the master! But learnt a lot on the journey.
 
You must log in or register to reply here.

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Porsche
Lockton
Pirelli
Officially approved
Oracle Finance
WEX Esso
Collecting Cars
Archant Dialogue
Back
Top