Stripped threads for coolant block on throttle housing

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  • rhockyrhodes
    Noobie
    • Oct 2024
    • 3

    #1

    Stripped threads for coolant block on throttle housing

    Advice needed... While replacing the gasket for the coolant block I stripped the threads for one of the screws. Do I need to buy whole new throttle body or can I repair this? Is epoxy or Heli-coil an option?

    (photo is not mine, but you get the idea)

    Thanks,
    -Jesse
  • 82eye
    E30 Mastermind
    • Jan 2009
    • 1916

    #2
    try tap it first. it's metric, so if you have to drill the rest of the threads out you can go to an sae a hair size larger and get a bolt for that.

    edit : epoxy etc won't cut it in that app. not sure you can get a heli small enough to work.

    Comment

    • moatilliatta
      R3V OG
      • Feb 2005
      • 6121

      #3
      Time sert could work

      I was up above it, Now I'm down in it ~ Entropy - A Build thread.
      @Zakspeed_US

      Comment

      • rhockyrhodes
        Noobie
        • Oct 2024
        • 3

        #4
        Originally posted by moatilliatta
        Time sert could work
        It looks like they have inserts small enough. If that doesn't work I'll try and tap it. Thanks!

        Comment

        • MrBurgundy
          R3V Elite
          • Mar 2012
          • 5330

          #5
          Happened to me and I just went with the next closest size, which was actually a standard size. Better than dealing with any inserts IMO.

          Current Collection: 1990 325is // 1987 325i Vert // 2003 525i 5spd // 1985 380SL // 1992 Ranger 5spd // 2005 Avalanche // 2024 Honda Grom SP // 2024 Yamaha XSR700 // 2024 Jeep Gladiator Rubicon

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          • ehrawn
            Advanced Member
            • Aug 2023
            • 157

            #6
            Originally posted by rhockyrhodes

            It looks like they have inserts small enough. If that doesn't work I'll try and tap it. Thanks!
            Keenserts or similar are the best method. We sometimes spec them in softer material like aluminum from the manufacturer as a preventative measure.

            Comment

            • cory58
              E30 Enthusiast
              • Dec 2007
              • 1021

              #7
              Originally posted by ehrawn

              Keenserts or similar are the best method. We sometimes spec them in softer material like aluminum from the manufacturer as a preventative measure.
              Never knew about Keenserts. Interesting design. Why are they better than Helicoil/Timesert in soft material?
              1992 325i Cabrio
              1988 320i Touring
              2000 M5
              1977 530i
              2015 328i - Euro Delivery/Performance Center Delivery
              BMWCCA
              E30CCA

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