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Advice for stripped threading on valve cover

Discussion in '1st Gen. Tacomas (1995-2004)' started by DillzGarage, Nov 4, 2021.

  1. Nov 4, 2021 at 7:24 PM
    #1
    DillzGarage

    DillzGarage [OP] Mall Crawler

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    9AF769D1-D55A-4FD6-A807-D7AC734ECFDD.jpg hey guys! a nightmare happened, when i was tryna change my spark plugs i noticed there was a different bolt being used to keep the ignition coil packs down. then i realized where the bolt threads in the hole, its completely stripped. like a bolt wont thread in now! any advice on what i should do? someone told me to replace the whole valve cover itself but i wanna hear other peoples suggestions before doing so. i was also told tapping into aluminum is kinda difficult.
     
  2. Nov 4, 2021 at 7:37 PM
    #2
    Wsidr1

    Wsidr1 Well-Known Member

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    It looks like the bolt head broke off. Is that true?

    Easy (not elegant) fix ideas:

    Those coil packs have no stress on them, and the rubber cap on the plug pretty much holds them in place.
    Easiest fix would be to drill and tap for a small bolt to anchor it.

    Or, you could use a bit of JB weld and anchor a piece of all-thread and screw a nut on it. It's really not going to take much to hold that down.
     
  3. Nov 4, 2021 at 7:47 PM
    #3
    DillzGarage

    DillzGarage [OP] Mall Crawler

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    theres no bolt in there, sorry for the misleading pic. however i was thinking about the tapping method and ur jb weld idea sounds pretty good too. i just want it to be secure enough for offroading
     
  4. Nov 4, 2021 at 7:59 PM
    #4
    BartMaster1234

    BartMaster1234 American Auto Horns

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    TWJLee likes this.
  5. Nov 4, 2021 at 8:19 PM
    #5
    Andy01DblCabTacoma

    Andy01DblCabTacoma Well-Known Member

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    If the threads in the valve cover are toast, and there is not a broken bolt in there (if there is bolt in there, use an extractor and remove it), you have a few options.

    1) Simple... jb weld. shove some in there, and push a bolt in, call it good, and try not to think about it... This isn't a high tension bolt, it'll be plenty.

    2-1) Helicoil - don't get them from Amazon. be sure to get the blind hole style for this application.

    2-2) re-tap with a larger thread- drill a slightly larger hole, and re tap (with a blind hole tap).

    3) new/used valve cover - Replace the the cover with a non-stripped one & do your valve cover gaskets while you're at it.
     
  6. Nov 4, 2021 at 8:21 PM
    #6
    kctmet

    kctmet Well-Known Member

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    If the threaded hole stripped, then use Heli-coil to fix it.
     
  7. Nov 4, 2021 at 8:22 PM
    #7
    JudoJohn

    JudoJohn Well-Known Member

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    i say use a heli-coil.
     
  8. Nov 5, 2021 at 1:41 PM
    #8
    Bivouac

    Bivouac Well-Known Member

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    Remains to be seen I bought the tires and wheels the rest came along
    I kinda like theidea of Epoxy a stud .

    Then when or if you do the valve covers You can fix it correct if your not happy .

    Drilling and tapping Aluminum is easy trying to do it on the truck makes it difficult at least for a klutz like me.
     
    Kiloyard likes this.

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