Curious intermittent vibes

Discussion in 'Mazdaspeed 3 General Discussion' started by PURPFOX, Aug 1, 2016.

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  1. Trackrabbit

    Trackrabbit Greenie Member

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    At least we've agreeded its not the vvt. I was not looking forward to replacing that
     
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  2. PURPFOX

    PURPFOX Greenie Member

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    Strange enough, pulled the tram mount. All good.
    I'll change the a.c. Clutch bearing next, and then the old ass clutch.
    On a side note, I think I may have an issue with the half shaft bearing. I can grab the passenger side axle where it goes into the carrier bearing and it has a crap load of slop.

    Dumb vid didn't upload right . basically the part of the axle that goes into the support bearing wiggles in a orbital pattern, in and out is fine. this doesn't seem right at all to me. Just don't want to spend $300 on that bearing if its normal
     

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    Last edited: Oct 10, 2016
    PURPFOX, via a Samsung mobile device, Oct 9, 2016
    #22
  3. PURPFOX

    PURPFOX Greenie Member

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    Bump for help, before i buy more shit i probably don't need
     
  4. Maisonvi

    Maisonvi Platinum Member

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    I cant watch the video at work, but this sounds like possibly the issue @HawkeyeGeoff was having at one point. Geoff, what did that end up being?
     
  5. HawkeyeGeoff

    HawkeyeGeoff MSO Chicks Greenie Member

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    I got this on my 2nd gen pretty much stock with bolt ons and motor mounts. I ended up contributing it to the dual mass flywheel osscilating on engine decels knowing what I know now in my current job.

    My half shaft ended up not being the cause of my problems. @Maisonvi; my problem was the reverse knocking....but it seemed to have more to do with the stiffness of all my motor mounts. Once I switched to an OEM PMM this completely stopped no matter how hard I try to get it to happen. There just was not enough slack. But that's a different issue.

    OP, you say this happens during cruising as well? If you are touching the throttle and it goes away I would almost mens warehouse that it's the DMF.
     
  6. PURPFOX

    PURPFOX Greenie Member

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    Well, we shall find out. I have a new clutch on the way. When I was stock mounted it would do it on a rare occasions, usually after a hard run.
     
    PURPFOX, via a Samsung mobile device, Oct 16, 2016
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  7. PURPFOX

    PURPFOX Greenie Member

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    Yep, getting rid of the worn out dual mass flywheel ridded me of the insane vibrations.
     
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