Empty clutch reservoir
Empty clutch reservoir
Author
Discussion

jonbarrett

Original Poster:

800 posts

232 months

Saturday 7th March 2009
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Clutch started feeling a little soft. Battled my way to discover the reservoir was completely empty eek

There was some black rubber in the reservoir which I have cleaned out. I topped it up and the clutch feels much better. I'll run it for a day or two and see if the level falls.

The question is, was it always empty or is it leaking, if so from where?

ridds

8,372 posts

274 months

Sunday 8th March 2009
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Covered in lots of clutch threads.

Look under you pedals in the cabin. See any leaks? If do Master cylinder gone.

Look under the clutch bell housing under the car. Any fluid? If so the slave cylinder has gone.

Either way it will fail soon. The rubber O-rings degrade with time and exposure to the fluid. Plan to fix it sooner rather than later.

Mine did this, failed completely 500 miles later. Luckily it was as I was pulling onto my drive!

baztvr

109 posts

219 months

Sunday 8th March 2009
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Just swapped mine for a new one, £50 tvr power, It feels great now and made me realise that the gearbox is not notchy, just poor master cyl. worth every penny. I my be wrong but I also felt that if I just bleed it, the black rubber residue may contaminate the slave cyl. didn't want that. I ended up boring a hole in my inner wing to give me access for a long socket extension to reach the lower bolt on the cyl. then put the right size rubber bung in it afterwards. hope this helps.

jonbarrett

Original Poster:

800 posts

232 months

Sunday 8th March 2009
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Thanks for all the feedback. Looks like a new master cylinder for me.

plumAJP

1,149 posts

219 months

Wednesday 22nd April 2009
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is the clutch fluid drawn from the brake fluid reservoir?

if not where is the clutch fluid reservoir? is it under the black turret cap thing on driverside wing

itiejim

1,822 posts

235 months

Wednesday 22nd April 2009
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Yep, the master cylinder (with integral reservoir) is under that black cover.

Storer

5,024 posts

245 months

Wednesday 22nd April 2009
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baztvr said:
Just swapped mine for a new one, £50 tvr power, It feels great now and made me realise that the gearbox is not notchy, just poor master cyl. worth every penny. I my be wrong but I also felt that if I just bleed it, the black rubber residue may contaminate the slave cyl. didn't want that. I ended up boring a hole in my inner wing to give me access for a long socket extension to reach the lower bolt on the cyl. then put the right size rubber bung in it afterwards. hope this helps.
Good tip. I have mine to do and a hole would help gain access. A bit of mastic around the bung before fitting might be wise too.

plumAJP

1,149 posts

219 months

Thursday 23rd April 2009
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how awkward is it to get the master cylinder out to check it over?

ridds

8,372 posts

274 months

Thursday 23rd April 2009
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Awkward to the point that if you've got it out I'd just chuck another one in there.

plumAJP

1,149 posts

219 months

Friday 24th April 2009
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had a look at mine last night and the reservoir had bits in it which i presume are from a seal somewhere.

top bolt easy to access but the bottom bolt is "uptight outta sight"

looks like its seat out, upside down in the footwell and order a new one.

are there differing versions of these with different length push rods or something?

ridds

8,372 posts

274 months

Friday 24th April 2009
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Differing push rods and pipe union sizes too.....

Just to make it interesting.

plumAJP

1,149 posts

219 months

Friday 24th April 2009
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so if i order one from tvr power i will need to tell them the rod length and pipe sizes?

can you buy new seal kits for them? save a lot of hassle

fatjon

2,299 posts

243 months

Friday 24th April 2009
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It could just be a very minor seepage. I lost the clutch on mine a few thousand miles ago with the same problem and I filled it up and bled it and have had no trouble since. I wouldn't go dipping into your wallet yet, fill it up and check it in a week, if it has gone down at all then it merits some investigation. The slave cylinder rather than the master cylinder generally seems to be the more common leaker.

plumAJP

1,149 posts

219 months

Friday 24th April 2009
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the problem i had with mine was that the pedal would slowly depress to the floor but no press the clutch.
i found this out as i drive with my foot slighlty resting on the clutch (taking the slack our of the pedal sort of thing) and one day i could feel the pedal slowly moving down.

now ive bought new seals for the slave cylinder and the bell housing was as dry as a bone so i know it wasnt that at fault so the only thing it can be is fluid passing the master cylinder piston seal.

if i just let off the clutch and press is again the pedal is back to normal, so i guess when the master piston returns to normal position the fluid squees back past into the chamber. it only happens if i get lazy and rest my foot on it so the fluid can slowly seep through but it doesnt on a normal clutch press.

It not that bad so i will bleed the system and live with it for now i think as i want the car back on the road asap.

what clutch fluid is recomended?

ridds

8,372 posts

274 months

Friday 24th April 2009
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I did that with my slave. It went in France coming back from Le Mans. Got back filled it up and bled it out and it was fine for a year.

Then 3 days before I was due to go again it went completely! You can risk it for a few hundred miles but I'd get ready to do it.

It's no fun not having a clutch and being a long way from home. laugh

fatjon

2,299 posts

243 months

Monday 27th April 2009
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Just out of curiosity I checked mine on Saturday. It's about 5000 miles since I had the reservoir run dry and in that time it had lost about 3/4 of an inch of fluid so I think I will be budgeting for a master and slave cylinder during my winter refurb.

Jon