Hey guys,

So a few weeks ago we put a new clutch in my s2000. Its an AP1 by the way, and we put in a stage 3 clutch masters clutch with a fidanza flywheel. The flywheel is clearly much lighter then stock and the clutch is a fullface carbon kevlar with a stronger reinforced pressure plate.
( the clutch was installed by a good mechanic whom worked for the honda store and knows allot about hondas. Not to mention builds hondas and has some very fast turbo civics with gsr motors. Not that this really matters but he for sure knows his stuff.)

Now after the clutch break in point, im about about 1700 miles on the new clutch right now so it is clearly broken in considering the 500 mile break in rule. Yet whenever i realy get on it, the slave cylinder decides to slip underneath the fork pivoting to let me shift. NOW it only happens at high rpm when im in vtec and basically the clutch pedal goes all the way to the floor because my slave is no longer pushing on the fork attached to the bearing in the tranny.Basically i just jack the car up, and put it back, then its good for a few times, and then after a few days if i get on it again once or twice, when im at high rpm the slave will slip underneath the fork again. I HAVE REPLACED THE SLAVE AND THE MASTER CYLINDER WITH A STOCK SLAVE AND THE OMNI POWER MASTER CYLINDER. And in vtec the pedal tightens up to the floor also.. like it seems as in high rpm the pedal needs to move a huge amount less. But i think thats from the new master.

SO BASICALLY. - new clutch and lightened flywheel. - New stock slave, and new omni power master - at high rpm my slave slips under my fork. - CAN ANYONE PLEASE HELP ME

My mechanic says we could try to limit my clutch pedal movement so that it stops slipping..

Does anyone on here have any experience with this problem ? Does anyone have any ideas to fix it ? Maybe somehow make the fork and slave move together. To be honest at this point im lost on ideas.

THANKS - jay

EDIT- we have greased the fork and everything multiple times and have tried to figure out the small issues, but no dice.

 

no ideas?

 

Ok...I'll throw in. I assume you have verified your slave is properly bled....first thing I would do. Next would be you pedal adjustment. A slight change can make a big difference. The Guru here is "Billman" who swears by zero free play. Try a search. In short loosen the lock nut on the pedal and push on the pedal with 1 finger. Get that initial free play to zero (I back mine off 1/8 turn from here). There is then another 1/2" or so of master cylinder motion at a slightly higher friction before you feel the full back pressure. The key is fiddling with that FIRST bit of free play.

Just my thoughts........

Utah

 

The slave cylinder has a brass pin pushing into the clutch fork. Is the ball end of the pin on the fork?

 

Yes, the brass ball side of the pin is in the fork. According to my mechanic talking to an engineer, we should have to limit pedal travel. I have been driving it this week while only pushing the pedal in maybe a half an inch and shifting. This works very well, i can slam 1st through 4th at 9k without the pin slipping off of the fork. YET whenever i push the pedal all the way to the floor while ripping through gears, it will slip off of the fork. As long as i only push the pedal in a slight bit when shifting, it doesnt slip and works fine. I dont understand why, and it seems like stopping my pedal from going all the way to the floor is the only solution.

edit- i have no feeplay in my clutch

 

Throw the Omni master cylinder away. They are known for not releasing the clutch all the way. The slave cylinder pushrod is difficult to center in the clutch fork. It sounds like you are not getting it seated correctly in the fork.

Stock slave cylinders have no brass pin.

Pictures here would help.