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Have I wrecked my C70's clutch?

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Old Jul 6th, 2019, 18:17   #1
StatusRed
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Unhappy Have I wrecked my C70's clutch?

So... because I'm running out of jobs to do on my C70 before I take it to the garage for a brake overhaul and MoT I decided I'd bleed the clutch (can't bleed the brakes because the nipples are all seized).

So I got out my eezibleed kit and got to work, I've done it a few times before so thought I knew what I was doing..

Connected it all up with fresh brake fluid in the bottle and started bleeding the clutch.. It was fine at first but then it gargled and I saw just air coming out with some vaporised form of brake fluid and the fluid wasn't going down in the bottle, I was a bit confused at first so I tightened up the bleed nipple and tried again, the same thing happened.

I then checked everything and found that the hose from the top of the fresh fluid bottle wasn't in place so it was pulling up air and not fluid - therefore probably pushing air through the clutch..

I put the tube back on and tried again, I thought it worked as fluid then came out of the clutch bleed nipple, when no more bubbles were there I tightening it up and disconnected everything...

Then when I came to test it... I put my foot on the clutch with the engine off and it was incredibly light, so that was my first worry.. Then I turned the engine on and tried to bring up the clutch very slowly in 1st gear, it won't get the biting point, but you can hear a brushing sound, so I assume this is the gearbox brushing past the clutch and not connecting?

My question is... Have I caused some sort of damage to the clutch? And what should I do? Have I just trapped some air in the system and need to bleed it out with a load of new fluid to free the air or what?

Any help would be appreciated!
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Old Jul 7th, 2019, 04:32   #2
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If you have air in the clutch hydraulic system it wont disengage the clucth which by your post sounds the opposite?

It sounds like you cant get the clutch to engage?
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Old Jul 7th, 2019, 08:07   #3
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I would suggest bleeding all over again, is there a seperate clutch master cylinder or combined with the brake m/c?
Get someone to operate the pedal while you check the slave cylinder is operating the lever
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Old Jul 7th, 2019, 09:12   #4
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Quote:
Originally Posted by volvo again View Post
I would suggest bleeding all over again, is there a seperate clutch master cylinder or combined with the brake m/c?
Get someone to operate the pedal while you check the slave cylinder is operating the lever
About to bleed it again using the 2 person approach, yes clutch feels very light and won't engage.
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Old Jul 7th, 2019, 11:02   #5
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I found with the Eezibleed on the brakes it needed quite low pressure and a couple of times to get it right.
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Old Jul 7th, 2019, 11:06   #6
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I've now just done the 2-person bleeding operation and I think it's OK... I actually think it was OK in the first place..

After I'd rebled the clutch and tested it I then put the front on axle stands for some other work, I turned the engine on again and tested the clutch and it was the same symptom as yesterday, but on the ground I could feel the car getting the biting point...

Is this basically what I should expect when the front of the car is in the air - not feeling the biting point and hearing a brushing noise as the clutch is coming up?

I'm just about to lower the car and test it still gets the biting point again. The clutch still feels a bit light compared to how it was before but I'm thinking there was nothing wrong to begin with..
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Old Jul 7th, 2019, 12:07   #7
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Just lowered the car and I can feel the biting point.. So I think nothing is wrong after all.
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