Technical Clutch slave cyclinder

Currently reading:
Technical Clutch slave cyclinder

SGThirkell

Member
Joined
Feb 23, 2009
Messages
169
Points
52
Location
Gainsborough
I have just spent a whole day trying to bleed my clutch hydraulic system on the 1.9JTD and as stated in previous posts, it is a real nightmare.
I have just about got enough clutch now to change gears so I can drive it again (it is MOT tomorrow!) but I think I'm going to have to do more bleeding later to get it working properly. There seems to be so much air in the system.
Anyhow, one thing I did notice is that the bleed nipple now has a very slight leak when the pipe is locked back into the cylinder. See attached diagram.
It seems that having moved and opened the "valve" to bleed the cylinder, it isn't sealing properly anymore now I've shut it.
Anyone had this happen to them? Or know how to sort this.
Also, does the pipe pull all the way out easily as I'm wondering if there's some sort of sealing ring I could change?
Any help is well appreciated.
Thanks.

slave.jpg
 
is the boot with the rod full of brakefluid also.you should only have to change the seal under/behind the hairclip,done loads of clutches without problem but make sure pipe is fully inserted.if fluid is leaking around base of nipple i think replace it.with a new slave cylinder.:)
pipe will come out easy when the hairpin is raised enough,
 
Last edited:
is the boot with the rod full of brakefluid also.you should only have to change the seal under/behind the hairclip,done loads of clutches without problem but make sure pipe is fully inserted.if fluid is leaking around base of nipple i think replace it.with a new slave cylinder.:)
pipe will come out easy when the hairpin is raised enough,

There is only oil coming out of the nipple itself as if it's slightly open. The pipe is pushed right in and the clip fully down but it still dribbles out once you press the clutch pedal. If there is a sealing ring in there, how do I get the pipe out? When I lift the clip and pull the pipe to open the nipple, it stops after about 10mm as if it's hit a "stop" or something. Do I just pull hard (but carefully) to pass this "stop" point?
 
There are 2 o rings that are on the metal pipe that you pull out when you bleed the slave.
I managed to break one of them and it wouldn't seal properly after...managed to get a spare out of an o ring kit from toolstation...not exact but it fit..
If you buy a pattern slave they have the more conventional bleed nipple.
 
Sorry again..do not try and bleed the clutch with the nose of the car on a down slope..it will not bleed properly! I found out the hard way...turned the car round and it bled within minutes!
Also, how old is your clutch...even though I had minimal clutch slip the bite point got to right near the bottom and then finally the release bearing gave up!
 
Sorry again..do not try and bleed the clutch with the nose of the car on a down slope..it will not bleed properly! I found out the hard way...turned the car round and it bled within minutes!
Also, how old is your clutch...even though I had minimal clutch slip the bite point got to right near the bottom and then finally the release bearing gave up!

Thanks for all your help so far. I think I'll need new o rings then :( , don't suppose you know what size they are do you?
The clutch was new last year so is ok.
BUT I still haven't managed to finish bleeding the system. I've gone through loads of fluid, there doesn't seem to be any air coming out but I still have no clutch, it's doing my head in now :mad:
Maybe I need to jack the car up then? It's level but road slopes down to the left where it's parked.
 
Right, thanks guys for all replies so far. I replaced one of the small 6mm O rings on the pipe (it had a really small piece taken out, could only see it under a magnifying glass) and the bleed nipple now seals :slayer:
Now I have clutch pressure again so I think it was that little O ring that was letting air in etc.
It's still not amazing but I have all gears again. When I get another free day I'm going to try bleeding again but on an upward slope this time and try to get that last bit of air out where ever it is :)
 
This post contains affiliate links which may earn a commission at no additional cost to you.
Back
Top