Clutch Suddenly gone soft :(
Clutch Suddenly gone soft :(
Author
Discussion

zacherynuk

Original Poster:

353 posts

163 months

Wednesday 10th July 2013
quotequote all
Was about to go to a job,

Got in started up and went to pull away and the clutch is soggy all the way to the floor and the bite point is... well... at the floor really.

What gives ?

Cheers,

Zach

QBee

22,493 posts

174 months

Wednesday 10th July 2013
quotequote all
zacherynuk said:
Was about to go to a job,

Got in started up and went to pull away and the clutch is soggy all the way to the floor and the bite point is... well... at the floor really.

What gives ?

Cheers,

Zach
One of those cylinder thingies has popped its clogs, by the sound of it. You seem to be lacking hydraulic pressure.

jamienshelly

1,826 posts

168 months

Wednesday 10th July 2013
quotequote all
Hi Zac
Sounds like you have fluid leak, Check the reservoir, and check the drivers footwell and see if the master cylinder is leaking, or the slave may be leaking at the gearbox.
You may be able to top up the reservoir up and pump the pedal and get the clutch back to move the car etc, but it will need bleeding properly when the problem is fixed.
hope you get it sorted soon
Jamie

phazed

22,508 posts

234 months

Wednesday 10th July 2013
quotequote all
If all is well with the hydraulics, you may have a failed clutch fork.

EGB

1,774 posts

187 months

Wednesday 10th July 2013
quotequote all
phazed said:
If all is well with the hydraulics, you may have a failed clutch fork.
If fork gone. No clutch and gear action at all. Slave cylinder went with me. Possible to top up master cylinder, to get home. Topped up clutch with DOT4 fluid in town car park. New slave did the job.

Nice pics Peter.

Edited by EGB on Wednesday 10th July 11:29

zacherynuk

Original Poster:

353 posts

163 months

Wednesday 10th July 2013
quotequote all
Thanks for the prompt replies guys!

Levels seem good and no leaks I can see on drive or in footwell... hmm guess I'll have a fiddle and then call Austec ;(

phazed

22,508 posts

234 months

Wednesday 10th July 2013
quotequote all
EGB said:
If fork gone. No clutch and gear action at all. Slave cylinder went with me. Possible to top up master cylinder, to get home. Topped up clutch with DOT4 fluid in town car park. New slave did the job.

Nice pics Peter.

Edited by EGB on Wednesday 10th July 11:29
Thanks.

When my fork went the pedal picked up right at the bottom and I limped home!

You can check with a torch by looking in the bell housing if you know what you're looking at wink

Edited by phazed on Wednesday 10th July 13:16

zacherynuk

Original Poster:

353 posts

163 months

Wednesday 10th July 2013
quotequote all
Hang about! I'll be honest here - I'm a flute.

NOW I can say fluids are not ok and that reservoir is empty. Can't see where it went too - perhaps not alot to start with..

Will top up and see what happens smile

jamienshelly

1,826 posts

168 months

Wednesday 10th July 2013
quotequote all
Zac, if you look up at the clutch pedal assy in the footwell, you can see the master cylinder, if the rubber boot is damp then that's your problem, it may be the slave cylinder though and you may, or may not be able to see it on ground level. Where abouts are you, as if its the master cylinder it helps to have 2 people.

zacherynuk

Original Poster:

353 posts

163 months

Wednesday 10th July 2013
quotequote all
jamienshelly said:
Zac, if you look up at the clutch pedal assy in the footwell, you can see the master cylinder, if the rubber boot is damp then that's your problem, it may be the slave cylinder though and you may, or may not be able to see it on ground level. Where abouts are you, as if its the master cylinder it helps to have 2 people.
Hi mate - I'm up just outside Redhill, help may come in handy - appreciated smile keep meaning to hook up as you know...

For now though, I have simply topped up the reservoir and pumped the pedal *lots* and it now seems to be as it was... needs bleeding for sure but I'll need a ramp or solid wood for that, just can't get under...

Will see if it holds for now - thanks for all your help!

zacherynuk

Original Poster:

353 posts

163 months

Wednesday 10th July 2013
quotequote all
As a quick side... How big are these cylinders, capacity wise ?

From limp to as it was the reservoir has only dropped by maybe 5-8mm...

jamienshelly

1,826 posts

168 months

Wednesday 10th July 2013
quotequote all
That's good news that the pedal has come back, now you just need to look for damp/wet patches.
If you fancy a trip to Eastbourne on a Saturday afternoon, I could get it in the workshop over the pit or on a lift, to make life easier and look at anything else that you may need looking at or doing.
Pm me if fancy it, and we will sort something out as I am there most Saturdays anyway doing one thing or another to the old girl.
Hope you, or we can sort it soon then its 1 less worry.

QBee

22,493 posts

174 months

Wednesday 10th July 2013
quotequote all
jamienshelly said:
................and we will sort something out as I am there most Saturdays anyway doing one thing or another to the old girl.
yikes ....that's another husband who can't go home......she not OLD!!!!!

zacherynuk

Original Poster:

353 posts

163 months

Wednesday 10th July 2013
quotequote all
Righto - I have just successfully bleededed the clutch and at this moment it feels better than it ever has. has to be said the stuff that came out was rank, which was a surprise.

Now then, since it went completely soft over night I am kind of expecting it to do so again. If it does - would this indicate a seal gone anywhere, or more likely somewhere in particular?

Colin RedGriff

2,541 posts

287 months

Wednesday 10th July 2013
quotequote all
It will most likely happen again, from your description of the fluid it sounds like the fluid was well past it's best and that may have degraded the seals. Keep an eye on the master cylinder level, if it starts to go down again then fluid is being lost somewhere, seals are the most likely culprit. I've not heard of it happening, but it is possible that there's a problem with the hydraulic pipe between the master and slave cylinder.

If the fluid is not running down the clutch pedal then I would suspect the slave cylinder as it lives in a pretty inhospitable place. Also with the business end of the cylinder inside the bell housing you can't really see fluid leaking out of the seals.

I've got exactly the same problem and I'm swapping the slave out tomorrow night.





J4CKS

98 posts

164 months

Sunday 4th August 2013
quotequote all
I've just had the same thing happen to me. Literally over night I've lost all my clutch fluid. It seems to be coming out underneath the footwell judging by the small puddle and not leaking into the footwell or down the pedal. There seems to be a bit of grease/crud on the piston that you can see from inside the footwell.

I'm a complete novice and it's pretty much the first thing to have happened since I've had it. Without a pit or ramp I'll have to get down to the local garage to sort. In the meantime I need to top it up - do I do this via the small cylinder located in the wing??

Cheers


phazed

22,508 posts

234 months

Sunday 4th August 2013
quotequote all
Yes but you'll probably have to bleed it.

db484bhpv8

8,676 posts

250 months

Sunday 4th August 2013
quotequote all
This is Barries we modified last week while fitting his new clutch.
I bet he wont break this


Bassfiend229hp

5,530 posts

280 months

Sunday 4th August 2013
quotequote all
db484bhpv8 said:
This is Barries we modified last week while fitting his new clutch.
I bet he wont break this

  • chuckle* I'll add that to the list of things to do when I get my gearbox out ... hehe
(*IF* I get my gearbox out!)

jojackson4

3,049 posts

167 months

Sunday 4th August 2013
quotequote all
J4CKS said:
I've just had the same thing happen to me. Literally over night I've lost all my clutch fluid. It seems to be coming out underneath the footwell judging by the small puddle and not leaking into the footwell or down the pedal. There seems to be a bit of grease/crud on the piston that you can see from inside the footwell.

I'm a complete novice and it's pretty much the first thing to have happened since I've had it. Without a pit or ramp I'll have to get down to the local garage to sort. In the meantime I need to top it up - do I do this via the small cylinder located in the wing??

Cheers
Yes