New Spec Stage 1 Clutch Terrible Chatter!

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by fiveohlover, May 13, 2014.

  1. fiveohlover

    fiveohlover Member

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    Had a mechanic put in a new spec stage 1 clutch. The thing chatter like no other. It feels like my transmision is going to fall out of my car. Mechanic thought he installed it wrong and took it apart and put it back together again and it still chattered. Called up spec and they said that its just normal and has to be broke in. I know clutches chatter a little bit but it shakes my whole car when i start out in 1st and in reverse. Also chatters a little bit when downshifing. Is this normal? because i am scared to even drive the car.

    Also got a new flywheel from napa, and installed a aluminum quadrant and firewall adjuster with the new clutch.
     
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  2. 84Ttop

    84Ttop They make new pistons every day, so why worry?
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    If you want to help the break in, slip the clutch up a hill or any other incline to help heat cycle it. I'm not a fan of spec clutches fwiw and this would be one of the reasons. Too harsh of an engagement
     
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  3. RacEoHolic330

    RacEoHolic330 I like to dress like a pretty girl
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    As mentioned, get some heat in it and see if it goes away. I have a spec stage 3 with the individual pucks and it's actually not bad at all. Even when it was new it didn't chatter much. A McLeod twin disk is on the list for when I burn through this one.
     
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  4. RangerJoe

    RangerJoe Advanced Member

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    I've heard plenty of stories about the chatter. I ran the Stage II and didn't really have very much chatter during break in.

    Joe
     
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  5. flstang65

    flstang65 Well-Known Member

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    ...It's a Spec
     
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  6. fiveohlover

    fiveohlover Member

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    It normal for it to be really bad in 1st and reverse and some when downshifting?
     
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  7. jetmech807

    jetmech807 Mustang Master

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    I have the stage 2 and it doen't chatter.
     
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  8. 85rkyboby

    85rkyboby Active Member

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    x's 2.
     
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  9. fiveohlover

    fiveohlover Member

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    I slipped the clutch a little. This clutch seems like its either in our out
     
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  10. jAEded

    jAEded Active Member

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    Do a drag launch.

    I have to drag the clutch through a lot of first gear. Should break it in faster if thats what it needs.
     
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  11. Boosted92LX

    Boosted92LX Mustang Master

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    I also have a stage 2, it chatters a little. A lot of people fuss about spec's harsh engagement, but I've never heard of one failing. Seems a fair trade off to me for a reasonably priced performance clutch.
     
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  12. 90lxcoupe

    90lxcoupe Mustang Master

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    Clutches should fail, they are a fuse for the driveline. This is why the guys running something like a stage 3 or 3+ spec are more likely to destroy their transmission.
     
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  13. Boosted92LX

    Boosted92LX Mustang Master

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    I guess that's one way to view it. Always going to be a weak link. I wouldn't use a stage 3 on a street car anyhoo.
     
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  14. srtthis

    srtthis the guy doing it does every local racers rear end

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    Every spec clutch I've seen has chattered
     
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  15. madmike1157

    madmike1157 the humor is still lost on me
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    I put a brand new Spec stage 2 in the Cobra last year w/ a cast iron flywheel. From the moment I backed it out of the driveway, to the day I sold it a month later, it ran perfectly w/ absolutely no problems.
     
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  16. fiveohlover

    fiveohlover Member

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    Thats wierd, why doest spec fix this problem?
     
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  17. RangerJoe

    RangerJoe Advanced Member

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    I think it's a by product of their strength. They are strong clutches, and they are very reasonably priced. They could probably eliminate the problem all together, but the cost would probably shoot through the roof. Like others have stated, some have the chatter, others don't. Everything I have ever heard about spec clutch chatter points to doing a proper break in to eliminate the problem.

    Good luck with it.

    Joe
     
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  18. 90lxcoupe

    90lxcoupe Mustang Master

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    What is a proper clutch break in? If it isnt broken in after a few heat cycles the problem is the clutch. Ram makes a nice clutch that will hold up to more abuse than most people here would think about putting it through and they dont chatter one bit.
     
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  19. tonydalrymple

    tonydalrymple Active Member

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    I wouldn't quite say that about a Ram clutch. I'm on my fourth Ram clutch & I do love them too death. I've currently got a Ram clutch designed to hold 500-550hp. It has some chatter(kevlar puck disk). If I'm coordinated, my footwork with the gas & clutch are well sync'd; it doesn't chatter. If I'm not in sync with my left foot & gas pedal... I sometimes have mild chatter. If I'm really bad and or in a tight turn while backing up situation; it can be quite horrible. Keep in mind though that this is in a more flexible convertible chassis.... Light chatter in a coupe is 10 times more pronounced in a 'vert.... ;)
     
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  20. TOOLOW91

    TOOLOW91 Mustang Master

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    I have a centerforce dual friction and its smooth as butter zero chatter.
     
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