Ive just had my new clutch from KORE fitted its a SPEC stage 3. It vibrates like mad at the bite point, its great all the rest of the time very nice and smooth, no vibration when engaged. The guy that fitted it said that it is prfectly normal as that is what 4 puck clutches are like. Just wanted to check that this is right as boy does it vibrate when i try to slip it.

 

When you had the clutch installed did you have your flywheel machined? You should always get that done when you put in a new clutch.

 

Hi Jon, i believe the clutch has an unsprung hub and thats where your vibes are commin from. What can you say? it's a stage three buddy!

Btw, i'm thinking about getting the KORE stage 2 for my '97 tib (this one is sprung wink )and i'm wondering if these are complete kits (clutch, pressure plate, throw-out bearing, alignment tool) and how long did it take for you to recieve your clutch? PA isn't to far from where i'm at (VA) but i know Dan has been busy lately.

[ March 10, 2003, 11:41 AM: Message edited by: Koreandude ]

 

Yep they did the fly wheel, they said this is normal its only on the bite point i just wanted to check.
Thanks for the info koreandude i was typing whilst you answered, the description on the KORE web site was
4 PUCK KEVLAR SPRUNG/ UNSPRUNG DISC

So i didnt understand that properly, there are 4 small but very thick springs. Maybe they so stiff they only absorb a fraction,maybe there are more and softer springs on a stock clutch or maybe there are other parts that are sprung???

Are any of those right.

Another edit. The longest part was trying to get his details to wire the cash, once i sent the money it only took a couple of weeks and yes they are complete kits.

[ March 10, 2003, 11:48 AM: Message edited by: Jon ]

 

Oh and just one more thing is it now recomended that i re-enforce ony mounts or get poly ones if they are avialable ie engine/gearbox etc

 

no about the sprung hub...
the 'hub' is the flat surface that mats against the clutch plate. the metal surface that is secured probably by 3 pins or something to the actual springy part of the pressure plate; where your thrust bearing goes. sprung means that its suspended by metal tabs sorta that resemble feeler guages (for gapping spark plugs) and work more like leaf springs. unsprung means that the hub is pinned directly to the other half.

 

Right im sort of getting what you are saying but im still a little confused. Ill post a pic bellow if you could relate it to that it would be great, and i was wronge there are 6 springs as you can see. Sorry about this but im learing things in stages and this is my first steps on the clutch side. Thanks again for the help.

Just one thing i forgot i have only done about 20miles on this clutch so far so i was wondering does a clutch of this kind need time to bed in. I know you have to run them in but i was more refering to the judder.



[ March 10, 2003, 02:56 PM: Message edited by: Jon ]

 

As far as my experiences go with a new clutch, you do have to wear them in. A new clutch is usually way too sticky in the first few miles and feels kinda strange. I am guessing that it requires a few launches etc. to mate up with the flywheel nicely. I am not an expert on clutches but I know what a new clutch feels like compared to a worn in clutch. There is a slight possibility that SOME of the vibration you're feeling at bite is the clutch trying to mate up with the flywheel. I 100% doubt that it's ALL of the vibration but maybe a fraction. I hope my experience with going through a few too many clutches helps. By the way, the reason I mentioned the flywheel is because I had the misfortune of taking one of my cars to a garage with morons working there and they said "We didn't need to turn the flywheel. We ran a straight edge over it." Like a damn straight edge is going to reveal a damn near microscopic bump that will put hot spots in your clutch!

 

I have had my Brass Button Clutch installed for 2 years now and at first it was chattering like a BITCH!
Now its worked in and when i get out of first gear its smooth and doesnt vibrate any longer.
The ONLY thing i did notice is that when im on a STEEP hill my clutch pedal starts to vibrate.This ONLY happens on a Steep hill when i go into first gear and then take off!!
Cant understand why

 

take it easy on the clutch

YOu want to break it in nice and easy

Breaking in is VERY IMPORTANT

Also make sure they dont apply TOO MUCH lithium grease to the clutch... that could cause it to slip...

be carefull... take it easy for the first 500 miles

After that... let the bitch rip