I took my daily driver racing tonight and broke it on the first burnout. I guess it will not make it to work tomorrow, but I need help diagnosing it.

I did a burnout on slicks but the rpm fell too low. I popped the clutch to make a little smoke at least then let it roll forward. Then it would not go into any gear. The clucth is stuck engaged, even though the pedal feels ok. It has an ACT stage 2 with less than 5000 miles on it. It also has a brand new clucth master and slave cylinder, and I bled it real good. It hasn't given me any problems since I replaced the failed clucth master, besides a slightly hard and notchy feeling shifter.

But now the clucth is stuck engaged, it was HELL driving it home through many stop signs and red lights for 45 minutes. I had to grind the CRAP out of gears, and it only goes into first gear with the engine off. Had to get several pushes and had some close encounters.

Is the clucth just "stuck" on the flywheel? Or what could it be? Thanks a lot.

 

Sounds like your throw out bearing went.

 

Sucks! But thanks a lot for the advice, I'll "rape-drive" it to work this morning so I can put it in the air, and take a look.

 

cheap fix just alot of work.

 

If it was a throwout brg problem, either the clutch would not feel normal, or it would make noise when you pressed the pedal, while still disengaging.

Your problem is, IMO, 1 of 2 things:

1. clutch disk fused to pressure plate or flywheel (as you guessed), or
2. pilot bearing seized to trans input shaft

In either case, you'll have to pull it apart to diagnose/repair.

 

Not that im doubting your knowledge or the facts you stated but i had the same exact problems as him and it turned out to be the throw out bearing.

Thats why i was soo quick and confident about my original post.

But he will know for sure on either case when he pulls it apart anyway so.

 

Mystery solved:

https://www.rx7club.com/rx-7-audio-visual-lounge-143/video-my-clutch-failure-753409/

Thank you all for your time and advice!

 

Was it an ACT? I've never seen ACT use "Stage II" or anything which is why I ask. I tried to look up the specs for the clutch but I'm not finding "Stage II" on their site. Do you have a link to where it came from? Looks like the clutch overheated.

 

it would have to be slipping to overheat wouldn't it, did u find why it was slipping

 

If I'm not mistaken, I was told by the person that built the car that it was an "ACT stage II". I am not that familiar with the ACT products besides having destoyed an "ACT stage I - (or street)" clutch in this video:

http://videos.streetfire.net/video/9...-the_48172.htm

And then installing an ACT Extreme (which I think is "stage 4"), and never having any problems with it, and not too bad to drive at all. Therefor, I will be installing a "stage 4" (I think) ACT Extreme clutch in my car very soon, because these Mickey Mouse clutches are bullshit.

As far as slipping, no it never slipped to my knowledge. The only problem I ever had was a failed clucth master that I fixed a few days after it started getting bad. The car is daily driven semi-hard and raced on the weekends like most of us do I imagine. I am not a clucth-slipper. I learned that lesson on my first gen when I was 16.

 

As far as I know, ACT doesn't use the term "Stage". However, Spec does and that clutch sure looks like one. However, ACT seems to change their clutches from time to time without notice so who knows these days.

http://www.advancedclutch.com/119248...1.3L_T_FI.html

 

Well I'm not sure so thanks a lot for the info. In any case, as I found many times before, 400 horse Rx-7s need serious clutches. Halfass compromise "street" clutches simply will not last.

 

You are right, it's an EXEDY STAGE 2 clutch, not ACT.

 

O that explains alot then, i hear exedy is not that great.