Hey fellas I have an 89 Iroc, manual tranny. He just dropped in a 383, and installed a new centerforce clutch. Car fires up beautifully. But once its on I can't drive it because I can't get into any gear. I'll push in the clutch pedal, and the shifter won't enter anything!!

Any immediate thoughts? We changed the clutch fork and got the recommended throwout bearing for the clutch. Where else should I look?

Thanks guys.

 

are you able to put it in gear with the car not running? If so you need to start looking at the clutch and see whats going on. Why did you change the fork? Are you sure there is no air trapped in the hydrolic system? If you can get a helper have them sit in the car and push the pedal down while you watch to see how far the slave is pressing the clutch fork back. Assuming all the parts are correct I'd say it's def. in the hydrolic system, be it trapped air or a failing part.

 

Yes with the car off I can shift easy. When its on, I can enter no gear. We changed the clutch fork because the stock one had a broken clip that holds firmly in place the throwout bearing. Between my brother and I we can confirm that the bearing is pressing against the plate. We've also bled the system to make sure there is no air trapped, but I suppose we could do it again rather extensively.

Not sure what else man. Maybe we'll just remove the whole tranny again and start from stratch. Thinking something in the hydrolic system as well. If anything else comes to mind please by all means let me know.

Thanks.

 

If you are able to put it in gear without it running easily , it's gotta be somewhere in the clutch. Either you have the wrong fork, bearing, air trapped in the hydrolic system, or a hydrolic component has failed. When you are under the car watching to see the slave push the fork back try to get a reasonably close measurement of how far the fork travels. Post measurement up here, that way we can figure out if it is a problem with the hydrolic system or a problem with the fork and/or throwout bearing.

 

Also just keep in mind just because the bearing is pushing against the plate doesn't mean its pushing it far enough to allow the clutch to release completely which would cause the issue you're describing.

 

We're getting close to 3/4 of an inch of travel from the slave. That should be within spec correct??

 

Agreed.

Does anyone know what the distance between the bearing and the pressure plate should be?? Meaning when the clutch is engaged should the bearing be resting on the "fingers" of the plate or should there be a slight gap between them??

 

Wish I could outside look but I no longer have the car I converted to manual. I used
http://www.summitracing.com/parts/RA...&prefilter=1go I was running an older 2 piece RMS block (010) so I used a flywheel from an old straight 6 2nd gen car. Everything went togather and worked fine. Did have some issues with air in the system where the clutch wouldn't fully release while shifting so I had to pull it out and bench blead it before reinstalling. After that all was fine. It's been a while for me but 3/4ths of an inch doesnt sound like it's traveling far enough, maybe someone can confirm one way or the other? You could also try and see if you could manually push the fork back farther with a small bar and see how much more travel there is beyond where the slave pushes it to.

 

^^^

I could have sworn that GM called for a hair more than 1/2" of of travel. Based on that I assumed the 3/4" of travel im getting was well within spec. Hhhmmmm......


I'll see if I can wedge a pry bar tomorrow. I need to get this thing running already! lol

 

Finally got the BEAST running. Turns out the flywheel had been cut one too many times and was missing a ton of "meat". Slapped a new flywheel on and all is good.

 

wow must have been 1 worn out flywheel, glad to hear you got it fixed