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Fixing bad FCAB threads

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    Fixing bad FCAB threads

    Edit: After a quick search I see others have dealt with this issue.

    I used a cheapo autozone tap and made threads, probably not the best thing but really didn't have other options as the chaser didn't work.
    I will run it as is if it torques to spec and keep an eye on it, worst case timesert it if/when the compromised threads fail.


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    I have some gakked up female threads on a few of my FCAB mounting points, I was able to use a thread chaser to good effect on 2 of the 4 holes.

    Unfortunately on the other remaining holes the chaser will not thread all the way in and I don't want to force it and break it off.

    In the holes that still have issues I put in a brand new bolt, ran it in about 3/4 up before resistance is felt, removed the bolt to find distorted threads on top few threads of the bolt.

    I really have concerns using a regular tap as I do not want to remove material in this critical area.

    Any tips/tricks would be appreciated.
    Last edited by Cubieman; Yesterday, 10:44 PM.
    2004 Silbergrau Metallic 6MT
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    #2
    Should be good to go if you made good threads. It's steel 👍

    If not, a timesert should hold it.

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