Hello,
I have an Exedy triple carbon (pull type) clutch.
My clutch was over (carbon disks) after 5000 miles of street driving!
I did only one 0- 1/4m and 20 miles in a track.
Is this possible or something went wrong in the installation????

How many miles did your clutch before rebuild?

I am thinking to convert it to push style and rebuilt it or to buy a new push style metallic exedy triple clutch.
What are you suggesting me?

 

a lot of it depends on your driving technique. For example, with some race style clutches (doubles and triples), slipping the clutch too much in stop and go traffic can really wear them out quickly.

 

My last two triple disk cerametallic exedys have lasted 30K with a full season of drag racing (100-200 passes). Sounds like you might have an installation issue. I would get away from the carbon too, because rebuilds on those cost a bundle. Hell, even my cerametallic costs $1000 to rebuild with the 3 disks, two floaters and pressure plate.

 

Carbon clutches should never be used in a street car. 5k miles on an Exedy triple carbon seems about right where it should be.

 

^^ agreed carbon is not for street cars

 

So 3 of you agree that 5000 miles of long distance street driving could make a triple carbon need a rebuilt?

 

Tilton Carbon lasted me 800 mile's and it was toast she was slipping like a ****.

 

The thrust bearings in the side of the pulling had scratches in the first 4000 miles... I change them and after 500 miles it had the same scratches again!!!!
I was wondering if my mechanic did a false clutch pedal tuning.... how can I prove it now???
My engine is apart and I do not remember to have a free play on the clutch pedal like I should had...
Maybe this is an explain why my triple went off in 4500 miles....

 

Like I mentioned in your other thread on this issue, some pull clutches can cause thrust bearing issues, apparently simply by the nature of their much higher pressure plate pressure. That's one of the reasons given for going to a push style clutch actuation.

 

I don't think it is due to the fact it is a pull style clutch. There are plenty of pull style clutches that last thousands of mile. I have been using the exedy triple cerametallic pull style clutch for the last 75K miles. The first one went about 45K and the second 30K. I am guessing the second went out early because I reused the flywheel without grinding it.

Now if there is something specific about the carbon clutch (it requires even more pressure than the cerametallic), then I stand corrected. I guess another reason not to use carbon.

 

I hear that kevlar is the best material for a high mileage clutch. You can overheat the surface and it doesn't alter the underlying material.

Many people buy these expensive race clutch setups for evo's without realizing that clutch building is a balancing game. A material that grabs hard for high rpm launches, holds massive horsepower, and shifts smooth as butter at 9,000 rpms is not necessarily going to be the best for lasting any amount of mileage pulling in and out of parking spaces and babying a car around downtown.

I see a place in the market for a double or triple kevlar disk that advertises high horsepower capacity, easy pedal feel for daily driving, and high mileage life.