Clutch pedal judder/vibration - Alfa Romeo Forum
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Clutch pedal judder/vibration

Just driven 30 miles on country roads and the cars developed another issue.

I noticed that when I depress the clutch pedal, I could feel a lot of vibration through the pedal. Clutch still works, changes gear and when I release the pedal, the vibration stops.

Vibration starts as soon as the foot is on the pedal all the way through its travel.
When I got home I popped the bonnet, fired her up and listened.... there was a faint rubbing/grind noise when the pedal is pressed. The vibration is linked to engine speed.

Have I picked up some contamination in the clutch housing from crappy roads, got a vacum leak... or is it new clutch time. Bah!

Had to bleed the brakes last week..... are the hydraulics related... and if so, where would I bleed the clutch?

"If it can't be fixed with a hammer, your problems electrical!"

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Just an update.... the vibration feels like the ABS working on the brake pedal...... quite pronounced lumpy vibration.

Just found this on bleeding.... http://members.multimania.co.uk/gree...chBleeding.pdf
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Often an unevenly worn clutch friction plate can cause vibration/judder.

I would expect it to come on more gradually than it has though.
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A friend in the know has suggested collapsed thrust bearing.
Thankfully, he's a very jolly nice chap who's jolly handy with spanners. Nice.

Thats my weekend booked up.... and my jolly nice brothers on his way to drop off his vectra for me to use till its fixed. Really rather jolly nice. The sentiment..... not the car.
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The thrust bearing is part of the slave cylinder. The slave should be replaced anyway when the clutch is done, as it is inside the gearbox bell housing.

The thing is, the clutch kit doesn't come with it, you need to buy it seperately
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Quote:
Originally Posted by symon View Post
The thrust bearing is part of the slave cylinder. The slave should be replaced anyway when the clutch is done, as it is inside the gearbox bell housing.

The thing is, the clutch kit doesn't come with it, you need to buy it seperately
Lotta fannying about for one small bearing. Never mind. If it needs doing, I can get the ARB and heater sorted while I have her in bits.
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Quote:
Originally Posted by Prof Peach View Post
Lotta fannying about for one small bearing. Never mind. If it needs doing, I can get the ARB and heater sorted while I have her in bits.
It is indeed.

I suppose having all of the slave arrangement enclosed improves reliability, the trouble is when it does go it is a right ball ache to fix.
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