clutch judder?

dac69er

Super Moderator
all MY GTs have a juddery clutch to some degree :(

one has a 3 puk paddle, so i kind of expect that to be juddery. its borderline nasty to drive with so i am tempted to swap it out to be honest!
the other has an exedy organic and its not too bad, but still a bit juddery if you dont slip the clutch a bit
the final one has a stock clutch, which is the main one that gets on my tits!!!!

the one with the stock clutch was always fine, apart from at full send, it would slip a touch. i got the gearbox rebuilt last year and treated it to a fresh clutch and for the first time ever, i got the flywheel skimmed to make sure it was going to be 100%.
since then it has always been a little more juddery than before, but it was ok. it has now got worse just recently and its starting to affect the driveability. i need to slip the clutch more to pull away without juddering etc. it doesnt slip at all, so thats one good thing :)

any ideas? the rear main was changed and its bone dry underneath, so its nothing like that. the clutch is an exedy, so not a cheap no name clutch. the previous clutch was an exedy also.
i did have issues with a juddery as hell exedy years ago on my other GT, but it seemed like lots of people had this issue, so it may have been a bad batch? or are exedy stock clutched a bit hit and miss?
 

Skalabala

Member +
The curved plates between the organic/friction plates is the cause.
They are there to absorb shock/unevenness. If they collapse then the plate is done for.
This can be fixed with a hammer and a punch, hitting the rivet hard so that the plate bends.
 

dac69er

Super Moderator
The curved plates between the organic/friction plates is the cause.
They are there to absorb shock/unevenness. If they collapse then the plate is done for.
This can be fixed with a hammer and a punch, hitting the rivet hard so that the plate bends.
Surely this shouldn't be an issue on a new clutch with a couple of thousand miles on it though?
The entire clutch kit is only about £70 so not worth the effort of doing this unless it is a fundamental flaw in the design???
 

Skalabala

Member +
Surely this shouldn't be an issue on a new clutch with a couple of thousand miles on it though?
The entire clutch kit is only about £70 so not worth the effort of doing this unless it is a fundamental flaw in the design???
If the clutch is bad quality, dumping it hard only once can make it go bad :(
OEM clutch will solve you problem :)
However I would check the flywheel while its on the crank with a dial gauge when the clutch is of.
 

dac69er

Super Moderator
It's an exedy clutch, so shouldn't be an issue.
I had an exedy before that on the same flywheel and I only changed it as it slipped a bit if i drove hard and I had just had the gearbox rebuilt so seemed stupid not to.

I got the flywheel refaced and now it is juddery. I don't dump the clutch.

It's not a bad judder, it's just disappointing as this is the first time I have actually bothered refacing the flywheel and it's now worse than before (other than the slipping which has gone).
 

starletsy

Member +
Where did the exedy come from?
I believe there have been some fakes floating around on ebay and such like so always buy from a reputable source.
 

dac69er

Super Moderator
Where did the exedy come from?
I believe there have been some fakes floating around on ebay and such like so always buy from a reputable source.
Got it from carparts4less/ eurocarparts. I'm pretty sure it was genuine, quality was as expected and looked the same as the one I removed.
 
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