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5vz Harmonic Wobble

Discussion in '1st Gen. Tacomas (1995-2004)' started by 99RojoTaco, Nov 10, 2024.

  1. Nov 10, 2024 at 6:32 PM
    #1
    99RojoTaco

    99RojoTaco [OP] Well-Known Member

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    Yesterday I finished up doing my timing belt and all the other odds and ends in my 3.4 while I was in there and after the job I noticed an increased amount of wobble in my harmonic balancer/crank pulley. The bolt did seem over torqued when I first took it apart, even for the 217 spec and after tearing it apart again I noticed a small mark on the mating surface of the balancer. Could this be my issue? If so and I have to replace should I go oem or alloy aftermarket with a company like lce. I am contemplating on boosting it in the future

    IMG_0434.jpg
    IMG_0433.jpg
     
  2. Nov 10, 2024 at 7:34 PM
    #2
    LanceRN

    LanceRN Well-Known Member

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    I'd replace it. Harmonic balancers do go bad over time.
    If I remember right it was like a hundred bucks, and well worth the peace of mind.
     
  3. Nov 11, 2024 at 4:19 AM
    #3
    Black97v6MT

    Black97v6MT 361k on the 0D0 ... 5VZFE R150F 4WD

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    27+ years of livin' Gen1 TacoLife...
    hundred bucks?

    try over 700 bucks :eek: for OEM at MSRP

    how often do these really go bad? i don't see much from searching on the forums regarding the 5VZFE balancer/crank pulley longevity
    :notsure:
     
  4. Nov 11, 2024 at 5:42 AM
    #4
    LanceRN

    LanceRN Well-Known Member

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  5. Nov 11, 2024 at 6:43 AM
    #5
    Xperivent

    Xperivent Well-Known Member

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    Make sure your crank woodruff key thing isn’t worn down / excessive wear & play
     
    Black97v6MT likes this.
  6. Nov 18, 2024 at 4:14 PM
    #6
    99RojoTaco

    99RojoTaco [OP] Well-Known Member

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  7. Nov 18, 2024 at 4:15 PM
    #7
    99RojoTaco

    99RojoTaco [OP] Well-Known Member

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    Yea don’t go oem go with an LCE, reliable, no downsides being our engines are interact balanced, and it’s lightweight so it does have little improvements but it’s also billet so extremely strong
     
    Glamisman likes this.
  8. Nov 21, 2024 at 9:16 AM
    #8
    Black97v6MT

    Black97v6MT 361k on the 0D0 ... 5VZFE R150F 4WD

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    27+ years of livin' Gen1 TacoLife...
    How did yours go bad?

    Mine broke REAL bad one day on a hard stop in the torrential rain :eek:

    Do you have a link for the LCE you picked up
    Any pics of it installed?
     
  9. Nov 21, 2024 at 10:03 AM
    #9
    Xperivent

    Xperivent Well-Known Member

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    I wonder how these people hold that LCE pulley cause it doesnt look like it has nice holes to use a pulley holder tool
     
  10. Nov 21, 2024 at 4:40 PM
    #10
    99RojoTaco

    99RojoTaco [OP] Well-Known Member

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    Mine is manual so I just shoved her in a high gear with all my belts on and it was enough to hold it for 215ft pnds
     
    Kiloyard and Xperivent[QUOTED] like this.
  11. Nov 21, 2024 at 4:42 PM
    #11
    99RojoTaco

    99RojoTaco [OP] Well-Known Member

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    I don’t have a pic of it installed and it’s already dirty bc I took it snowin, but it slid right in and I just bought directly off of lc’s website https://www.lceperformance.com/5VZ-...EOwK2pxNRCBHRDMMqLAZQZIfTGHqVtgeJju9WCNOWnF9q
     
    Black97v6MT[QUOTED] likes this.
  12. Nov 21, 2024 at 5:56 PM
    #12
    LanceRN

    LanceRN Well-Known Member

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    Who ever did the timing belt didn't tighten the crank bolt down to spec.
    The bolt backed off, and the balancer started to wobble, wrecking the balancer.
     

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