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    #1

    Stripped threads in block...

    So like the title says, I was installing my H23 manual tensioner over the holiday break and found that one of the tapped holes was stripped completely out by the previous owner.

    I think I'm either going to order a m10x1.5 helicoil and use that, but the thought crossed my mind to use quick fix epoxy putty and re-drill and tap it. I think the heat will soften it too much and because it is part of my timing belt tensioning system I would really like to do it right.

    My two best options I can think of are:
    1. Use helicoil threaded insert
    2. Drill and tap the hole to a larger metric or next size up SAE thread and ream the mating bracket to match

    I'm open to other options.

    EDIT: Has anyone tried permatex stripped thread repair kit on a motor block or something else that gets heat cycled?
    Last edited by wildBill83; 11-26-2012, 04:56 PM.
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    #2
    Drill it and tap it to the next size up. Mechanically you aren't changing anything.
    My Members' Ride Thread - It's a marathon build, not a sprint. But keep me honest on the update frequency!

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      #3
      Originally posted by Jarrett View Post
      Drill it and tap it to the next size up. Mechanically you aren't changing anything.
      OK, that is what I figured. I'll ream the bracket tonight and visit fastenal on Friday for a compatible bolt. I may install an SAE bolt becuase I already have a nice tap set and the bolt may be easier to come by.

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        #4
        Drill and tap x 2


        Its the only way to do it correctly in my book
        Originally posted by wed3k
        im a douchebag to people and i don't even own a lambo. whats your point? we, douchbags, come in all sorts of shapes and colours.

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          #5
          Heli-coil is a correct way too, infact a good deal of motor builders that are making a FI build ream head bolt holes and install heli-coil.

          The only reason I would stray away from Heli-coil is cost, it's cheaper for me to just get the next size up grade 10.9 metric bolt and tap than a Heli-coil kit.

          Thank you again for the responses.

          Comment

            #6
            Originally posted by wildBill83 View Post
            Heli-coil is a correct way too, infact a good deal of motor builders that are making a FI build ream head bolt holes and install heli-coil.

            The only reason I would stray away from Heli-coil is cost, it's cheaper for me to just get the next size up grade 10.9 metric bolt and tap than a Heli-coil kit.

            Thank you again for the responses.
            Before you drill and tap it, make sure that what ever size you go up to, that the new bolt still fits through the tensioner hole


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              #7
              I'm going to ream the bracket tonight, there is plenty of meat.

              I'll drill and tap the block tomorrow.

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