99 GT new clutch, vibration in pedal - Forums at Modded Mustangs
 
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post #1 of 18 Old January 31st, 2013, 08:54 PM Thread Starter
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99 GT new clutch, vibration in pedal

Is this normal? Clutch kit is oem. Flywheel resurfaced. New tob pressure plate pilot bearing yada. But 50mi into break in. Not used to this, even on my old worn clutch. Had it installed by my mechanic because my fuel pump went out and i knew my clutch was shot so, might as well do it all at once. Thanks in advance.
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post #2 of 18 Old January 31st, 2013, 09:00 PM
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Not particulartly normal no.


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post #3 of 18 Old January 31st, 2013, 10:42 PM
Torchin tires...
 
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If you had it done at a shop, id certainly go back and let them know

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post #4 of 18 Old January 31st, 2013, 10:45 PM Thread Starter
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My mechanic said it would smooth out considering the flywheel resurfacing (had some blue spots) and the new clutch.....drives fine, shifts fine, grabs hard once let out (how i like it) but the pedal vibs like a sob....esp in say, 4th at 60mph
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post #5 of 18 Old January 31st, 2013, 10:46 PM
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A resurfaced flywheel is true..... there are no more high spots, low spots or blue spots for that matter. The reason you resurface a flywheel is to remove those and make the surface true.


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post #6 of 18 Old January 31st, 2013, 10:51 PM Thread Starter
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It was resurfaced due to the blue spots....but if it isn't over its vib bs by 100mi i'm calling him back. He's a mustang guy and will make it right. Outside of the pedal vib it drives like new. I'd figure if the pedal is vibrating the shifter would too but newp....also a slight whirr in 5th now that i think about it....hmm
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post #7 of 18 Old January 31st, 2013, 10:57 PM
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You lost me in the second half of the first sentence.


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post #8 of 18 Old January 31st, 2013, 11:03 PM
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Quote:
Originally Posted by bulloch27 View Post
You lost me in the second half of the first sentence.
hahaha

"If it doesnt stop vibrating by 100 miles hes calling back"

lost me at "whirr"

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post #9 of 18 Old January 31st, 2013, 11:12 PM Thread Starter
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It was resurfaced due to the blue spots. Plus, new clutch, resurface anyway at a minimum. If it isn't any better after 100 miles i'm calling back. The mechanic is a mustang guy that will make it right. Outside of the vibration in the pedal the car is fine. Drives fine, shifts fine, slips fine, grabs hard upon full clutch throw out, etc. No vibration in the shifter. It does have a slight noise in 5th now though, which sounds like a low tone whistle until i drive a bit.....is that better guys?

Last edited by KB99GT; January 31st, 2013 at 11:18 PM. Reason: Had a beer or 2, sue me.Bulloch, go GSU!
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post #10 of 18 Old January 31st, 2013, 11:40 PM
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hmm another guy on the forums had that same problem. He didn't mentioned if he ever got it fixed


Exterior is all done. Now its time she gets force fed.
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post #11 of 18 Old February 1st, 2013, 12:04 AM Thread Starter
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Thanks for the reply, Grub. I medically cannot do this work or i would have done it all myself...
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post #12 of 18 Old February 1st, 2013, 01:10 PM
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Here are a couple of ideas. The TOB is rattling off the pressure plate fingers. So you have to adjust the cable to rest the TOB on the pressure plate. Do this by obtaining and firewall adjuster and tightening it up. If not, there is a huge debate on whether or not the TOB should rest on the pressure plate. You can do the LDC mod and spring your clutch fork away from the pressure plate fingers. A lot of SVT forum members do this. I was also searching old threads. Shaun stated his pivot stud came loose. He fixed this my tightening it up and adding loctite. Can be done without dropping the trans but easier with dropping the trans.

Other scenarios would be not balanced but I don't think that is your case.


Exterior is all done. Now its time she gets force fed.
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post #13 of 18 Old February 1st, 2013, 03:39 PM
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Have you done hard launches on this new clutch already?

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post #14 of 18 Old February 1st, 2013, 03:55 PM
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Thanks for the reply, Grub. I medically cannot do this work or i would have done it all myself...
Just mentioning things so you can give the mechanic the heads up.

Hope you guys figure out what is going on. Or post if any of things I mentioned fixed your problem.


Exterior is all done. Now its time she gets force fed.
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post #15 of 18 Old February 1st, 2013, 07:35 PM
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Originally Posted by grubiaco View Post
Here are a couple of ideas. The TOB is rattling off the pressure plate fingers. So you have to adjust the cable to rest the TOB on the pressure plate. Do this by obtaining and firewall adjuster and tightening it up. If not, there is a huge debate on whether or not the TOB should rest on the pressure plate. You can do the LDC mod and spring your clutch fork away from the pressure plate fingers. A lot of SVT forum members do this. I was also searching old threads. Shaun stated his pivot stud came loose. He fixed this my tightening it up and adding loctite. Can be done without dropping the trans but easier with dropping the trans.

Other scenarios would be not balanced but I don't think that is your case.
I agree it's slack in the cable.


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post #16 of 18 Old February 1st, 2013, 08:43 PM
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Based on the under-standable reply, I agree with JayC. Sounds as if you simply have slack in the cable/freeplay between the TOB and pressure plate spring fingers. Adjust clutch properly and the vibration in the pedal should go away.


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post #17 of 18 Old April 9th, 2013, 05:45 AM Thread Starter
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To update this, breaking it in starting in 2nd and letting it slip its way to where i'd shift to 2nd fixed it. That and a few "f it i want to enjoy my stang" throttle off fast shifts(dumps) and one auto adjust fixed it.

---------- Post added at 05:45 AM ---------- Previous post was at 05:39 AM ----------

It's the orig quad and cable so yeah, you guys were very likely correct. Slack. Plus it needed break in.
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post #18 of 18 Old April 11th, 2013, 10:00 PM
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Mine had the same problem after I got a new clutch and a few other components... It went away after about a month or so.
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