Exedy Clutch Judder
23 May 2009, 10:46 PM
#1
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Exedy Clutch Judder
I've had an exedy clutch and lightened flywheel fitted and I'm experiencing bad clutch judder when setting off and down shifting. Done about a 1000 miles in it and it's still no different.
Anybody got any ideas, is it clutch, could it be fitment??
Anybody got any ideas, is it clutch, could it be fitment??
24 May 2009, 06:45 AM
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see if this helps///// CLUTCH judder refers to the vibration that is felt throughout the vehicle chassis at the point when the clutch takes up drive. Often the sensation is a violent vibration, so aptly described as a judder. The clutch is a mechanism used to gradually apply engine power to the driving wheels.
The clutch consists of two friction surfaces that are gradually brought together so that as the friction between the two surfaces is gradually increased, the amount of power transmitted is also increased as a result. Eventually sufficient pressure is applied to both surfaces that no more slip occurs and all engine power is transmitted to the driving wheels.
The clutch consists of three major components – the clutch bearing, pressure plate and the friction plate. The bearing bears on the pressure plate; the job of the latter is to gradually apply pressure on the surfaces of the friction plate and the flywheel.
Judder occurs when one or more of the clutch components have worn, failed or become misaligned. When this happens, “slip” is not constant, but rather the surface of the friction plate engages the flywheel at certain points along its periphery, hence creating the juddering effect.
The clutch consists of two friction surfaces that are gradually brought together so that as the friction between the two surfaces is gradually increased, the amount of power transmitted is also increased as a result. Eventually sufficient pressure is applied to both surfaces that no more slip occurs and all engine power is transmitted to the driving wheels.
The clutch consists of three major components – the clutch bearing, pressure plate and the friction plate. The bearing bears on the pressure plate; the job of the latter is to gradually apply pressure on the surfaces of the friction plate and the flywheel.
Judder occurs when one or more of the clutch components have worn, failed or become misaligned. When this happens, “slip” is not constant, but rather the surface of the friction plate engages the flywheel at certain points along its periphery, hence creating the juddering effect.
24 May 2009, 11:33 AM
#6
As it's only 1000miles old, there could well be a fair bit of "new clutch" friction disc dust impregnated onto the friction surfaces. Have you been quite gentle with the clutch up to now? Give it a couple of fast starts using around 3000rpm to burn off the deposits.
JohnD
JohnD
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26 May 2009, 11:37 PM
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hi mate i'm experiencing exactly the same as you. i've done about 4 k miles and still no better. I need to pull like 3k revs everytime i pull away which is rediculous, and also does it on the down shift. been told its because i've got the 6 spring clutch plate and the 4 spring is the one to have...bit hacked off, got no choice but to buy another unit although this time i will be doing direct through the garage rather than supplying myself! i've found you can minimise it by blipping the throttle on the down shift ....still a pain though
27 May 2009, 12:09 PM
#15
Hi ya,
Can someone tell me exactly how to do a good set off to eliminate clutch judder. I tried a 3000rpm in first gear and dumped the clutch and the just joted off lol.
Can someone tell me exactly how to do a good set off to eliminate clutch judder. I tried a 3000rpm in first gear and dumped the clutch and the just joted off lol.
