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Clutch is no worse or any better

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Old Jan 21st, 2012, 16:10   #21
Volvo2002
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TT I left it for over 3 hours in that position, had to go out to get the shopping but from that short journey the clutch was nice to use, will need to give it more time to see if it behaves itself.
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Old Jan 21st, 2012, 17:31   #22
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Originally Posted by tt82 View Post
Thats not exactly true though is it.

When your brake pads wear down the pistons move further and further out. You have a fluid resoviour to allow more fluid into the master cylinder to replace the fluid that is staying in the piston. the opposite is also true, when fitting new pads you push the pistons back in whilst keeping an eye on the fluid resoviuor for spilling. Fluid can move freely from the resoviour to the pipes and calipers.


The theory is that placing the fluid under pressure, it will cause the air bubble to rise up to the master cylinder, then when you release the pressure the air bubble will come through the master cylinder into the resoviour.
I am not arguing but you have your theories mixed up, yes, the bubble if there will rise anyway as it is lighter than the fluid it`s in and also because of the design of the system that is why the master cylinder is above all it controls, but by just putting pressure on the fluid will not do anything as the fluid is not moving!! it cannot escape so it cannot move the bubble, it`s just under greater pressure than atmospheric pressure, that is why you bleed because as the fluid comes out under pressure the bubble is in the fluid and comes out with it.
Pressure in the fluid will not make the bubble rise as it has already risen and does not need pressure to rise.
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Old Jan 21st, 2012, 17:34   #23
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TT I left it for over 3 hours in that position, had to go out to get the shopping but from that short journey the clutch was nice to use, will need to give it more time to see if it behaves itself.
Your clutch only seems lighter because the springs have been compressed for a long time
You will weaken them and then slip moves in.
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Old Jan 21st, 2012, 17:35   #24
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Your clutch only seems lighter because the springs have been compressed for a long time
You will weaken them and then slip moves in.
Are you saying my clutch is going to start slipping? I also never said the clutch was any lighter, just feels nice.

BTW usually from starting up the clutch is nice to use and then as I continue to use it the weight sets in and the judder happens sometimes but not a lot.
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Old Jan 21st, 2012, 18:23   #25
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i thought the system was sealed (ish)
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Old Jan 21st, 2012, 18:24   #26
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i thought the system was sealed (ish)
Not sure what you mean Sam?
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Old Jan 21st, 2012, 18:39   #27
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I'm not saying this is the answer to your problem but if the pressure plate prongs are subject to fatigue then you can experience this symptom. The bite feels fine when its cold but as the heat travels through the metal in the pressure plate the prongs loose their return action. What mileage in on the car? Has it done a lot of city driving?

Another thing it could be is the release/thrust bearing is snagging on its guide/sleeve. You have the M5P gearbox (reverse left of 1st) right?
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Old Jan 21st, 2012, 18:43   #28
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Originally Posted by Volvo2002 View Post
Are you saying my clutch is going to start slipping? I also never said the clutch was any lighter, just feels nice.

BTW usually from starting up the clutch is nice to use and then as I continue to use it the weight sets in and the judder happens sometimes but not a lot.
OK, just a mixture of word`s.
I thought a clutch was either heavy........horrible clutch
or
Lighter.......nice clutch

i didn`t think there was any in between as what else does one do with it?

Only trying to help, so i will shut up now, obviously you have it under control!!
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Old Jan 21st, 2012, 18:43   #29
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Originally Posted by Baffler View Post
I'm not saying this is the answer to your problem but if the pressure plate prongs are subject to fatigue then you can experience this symptom. The bite feels fine when its cold but as the heat travels through the metal in the pressure plate the prongs loose their return action. What mileage in on the car? Has it done a lot of city driving?

Another thing it could be is the release bearing is snagging on its guide/sleeve. You have the M5P gearbox (reverse left of 1st) right?
Exactly. As it heats up the symptoms start with slight pulsation and on occasion awful judder when on the bite for a few seconds.

Car mileage is 83,600. When I bought the car the symptoms came soon after and I'm not sure about the previous owners driving style.

On the gearbox I have the Phase 2 5 speed with no lift for the reverse.
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Old Jan 21st, 2012, 18:46   #30
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Originally Posted by 960kg View Post
OK, just a mixture of word`s.
I thought a clutch was either heavy........horrible clutch
or
Lighter.......nice clutch

i didn`t think there was any in between as what else does one do with it?

Only trying to help, so i will shut up now, obviously you have it under control!!
No I said the problem is usually the pulsating/judder. The weight can change but that's not the main problem, it's the pulsating and in some cases bad judder. In summer 2011 the clutch wasn't nice to use at all.

Yes you're trying to help but you don't need to take that attitude with me, I was only explaining what I meant by NICE.
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