This is my first experience with Competition clutch and it turns out to be a bad one. The tranny started to make load grinding noise when I put it into gear yesterday. So I towed the car home to be safe. I thought it was the throw out bearing but when I took the tranny out the bearing was still good. After inspecting everything, I found the clutch disc spline stripped. WTF

What could have caused my clutch to do this? Defective clutch? I just hope the spline in the tranny is okay.

These clutch were hardly used. I only drive the car on weekends.

I really would like to know what i can do to prevent this from happening when I install my new clutch. Did I installed it wrong? Tranny was put in correctly.

Anyone have this happen to them?

I never thought this expensive clutch would be so weak.

 

if u put 92-93 disc on a 90-91 trans it will do that!

 

I was told this the tranny is from a GSR and the tag says S80. I didnt have any issues until now.

 

It happens. Ive had it happen before as well... It can REALLY be a ****er to even get the trans off...






You can have them re hubbed.... Cheap. I had talked to Chris at CC and they offered to do it for me.
Otherwise the replacements are around 250-300 a set if i remember correctly. Rehubbing a disk was offered at 50 I think about a year ago

 

How long have you had the clutch.

 

Its been over a year but it was in my weekend car. The clutch saw a couple of 1/4 passes. There's less than 1000 miles on it.

 

call them up be like "hale naw, your shiz stripd, gimme a free one or bad rep!"

 

My discs are getting rehubbed at comp right now and I kno of another instance where this happened to a friend. Inexpensive fix tho, something like 105 for both discs

 

It would be interesting to see that metal be tested for hardness & composition. If its far too soft (or hard/brittle), or just crap metal, they should be doing more than rehubbing them.

 

I have had this happen to a good customers car and the first time it happened (last week) we pulled the clutch out and the floaters and flywheel saw alot of heat so we had to replace the entire clutch assembly. We sent him off with a whole new assembly so he can get to expo and i think he made it to indiana and the splines stripped out again. I am not sure what the problem is but I am going to leave it up to competition to take care of it.

 

Damn , im running thier stage 4 clutch in my car. Hope that doesnt happen. Ive put about a 1,000 miles on mine of mostly hard abuse and its holding up good.

 

Wow, happened on the street? When you really think about it, it should be virtually impossible. Each spline carries HALF the load vs a single-plate clutch.

Sounds to me someone outsourced to China, and the factory got cheap on them. Are you guys sure that's steel, and not zinc (pot metal)???

 

black R?

 

Your pictures looks like mine but worst. Did you damage the spline in your transmission shaft?

Im worried I have to get a new tranny.

 

Well this scratches CC of my list of Twins I was interested in...... I cant believe you spend over $1000 on a unit and then you have this happen and they charge you $100 to fix thier shitty product. Guess its a Tilton for me......

 

is this a very common thing to happen to a CC twin or just CC in general?
i have a CC TWIN in my trans now but havnt had the chance to drive it yet... i hope i dont get FUKD also!!

 

im going exedy twin **** competition twin disc.

 

yes

 

Most all of them get their discs from the SAME PLACE... Quartermaster

http://www.racingclutches.com/

My replacement ones came from them. Tilton uses the same I believe (if I recall correctly all the variants, at least the big name ones do) and I HAVE heard of them doing the same thing... At least ther cerametallic units. Mind you mine had 10K relentlessly beaten miles at over 600WHP and 450TQ on them. In a car thats heavy and hooks HARD

Ive talked to CC and the thing is that they CANT make the hubs any harder, and they are barely softer than the input shafts as it is... If they WERENT the INPUT shafts would get ****ed up instead.


To answer your question Im running an aftrermarket straightcut set that the input shaft is much harder than the stock unit, so no, my shaft saw no damage, but I had used it on a OEM tranny for a good long while (actually a number of them before the built one as I kept blowing teeth off of the gears)..

Ive got about 6k on the replacements and no issues, in fact its out right now so I can do a rear mazin seal and the car is making closer to 675 now and still no issues, but if I have to9 rehub them (There is alot of material on the disks and if I remember right anything above .200 is in service limits) Im not gonna be pissed. My old set still had like .235 left on the meat, but I had bent the plate, So I couldnt rehub it...


Like I said sometimes its a bitch to get the trans out as if the hub wears out like mine, the BACK side of the splines that are left will hold the dam tranny in.. I fought it hard and bent the plate when i got pissed and just let the tranny hang off it for a few minutes..


The fix is to have someone put a 19 on the crank pulley and slowly turn the crank just a SMIDGE as you pull the trans back It will allow the splines of the inside disk to line up with the back side of the input shaft and release it from being bound.... If that makes sense... If [I] would have done it the first time I could have reused my original disks..


Good Luck.

 

WOWZERS!!!

 

reminds me of



but on a serious note hope you get it resolved

 

Might want to double check the input shaft. In my experience a slightly worn shaft will cause this over time.

 

this isnt good, i have a cc twin disc, hope this doesent happen to me.