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Stripped inverted flare nut on caliper

Discussion in '1st Gen Tundras (2000-2006)' started by Hi06silver, Jul 25, 2022.

  1. Jul 25, 2022 at 2:16 PM
    #1
    Hi06silver

    Hi06silver [OP] Fat. Thumbs.

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    So I noticed a small leak a day ago and just got around to investigate today. Has anyone had the nut on the hard line going to a caliper be stripped and not end up buying a new caliper?
    I have a new hardline on order but didn't know it was stripped at that time. My guess nos that the caliper internal threads are of stronger metal but my luck is that I'm gonna get a new line and then need a new caliper.
    I should just have done the braided lines but we won't go down that road again right now, someone got banned for going off the planet last time.....

    16587837241062524783087560968799.jpg
     
  2. Jul 25, 2022 at 3:06 PM
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    Aerindel

    Aerindel New Member

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    I would get a tap and re-thread the caliper. The threads ARE harder than the brake line nut but re-threading is good insurance to clean up any metal squished in there and repair the threads if damaged. I *think* its M10 threads.

    No idea what this means.
     
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  3. Jul 25, 2022 at 3:17 PM
    #3
    Hi06silver

    Hi06silver [OP] Fat. Thumbs.

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    Oh. I had asked a question about brake braided SS brake lines a while back turned into a mess. It wasn't necessary I suppose. I was just thinking that if had done that I wouldn't be dealing with this now.
     
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  4. Jul 25, 2022 at 3:19 PM
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    FrenchToasty

    FrenchToasty Desert rat, 6 lug enthusiast

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    Braided lines still have that same hardline to the caliper, so you’d still be in the same boat
     
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  5. Jul 25, 2022 at 3:25 PM
    #5
    Hi06silver

    Hi06silver [OP] Fat. Thumbs.

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    Ahh. I thought about getting them all the from where the rubber starts and yo the caliper. Isn't that what some people go with when lifted. Seems there's usually a banjo bolt on the back of the caliper afterwards.
    @Aerindel thanks for the input. Never rethreaded a caliper. Guessing this should be done slowly and vacuumed out? Cant imagine the shavings would be good inside the internals of caliper? You ever done this?
     
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  6. Jul 25, 2022 at 3:40 PM
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    Aerindel

    Aerindel New Member

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    Yes, but not the same situation as you. What happened to me was that I had a tire chain brake and rip the brake line out of the caliper in the front so I had to use a broken bolt remover to get what was left of it out of the caliper. I re-tapped the caliper just to make sure I didn't have any issues cross threading or anything when I replaced the line since it was kinda bunged up.

    Its not hard, just go slow and easy. You're not cutting new threads so it should go in pretty easily. If you put a little grease in the hole first it makes breaking the tap less likely and catches the shavings, which you can then clean out with a q-tip afterwards. No, you don't want shavings in the caliper but taps tend to pull shavings OUT rather than push them in so its not a big worry as long as you are moderately careful. Really, you just have to look at it and make a judgment call as to how your threads are afterwords. You should be able to have some idea if they are good or not when screwing the new brake line nut in after cleaning up the threads.

    If you don't have access to a tap (they are pretty cheap if you just need one) you can cut a slot in a hardened bolt of the same size, to make it look like a self taping sheet metal screw, and run that in and out a few times to repair the threads.
     
  7. Jul 25, 2022 at 4:47 PM
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    nickrick78

    nickrick78 New Member

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    That sounds like a better idea than the little metal line, two less parts in the brake system to fail
     
    Last edited: Jul 25, 2022
  8. Jul 26, 2022 at 2:19 AM
    #8
    w666

    w666 D. None of the above

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    It looks like it might have been cross threaded. After the female threads in the caliper are clean, make sure you can thread the new fitting several turns by hand before you get a wrench on it.
     
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  9. Jul 26, 2022 at 7:30 AM
    #9
    des2mtn

    des2mtn Ridgeline with a 4-speed

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    Going to a one piece can be done, but the concern I have about is that's a lot of unsecured line that can move around and get caught. If it's not secured to the spindle like the two piece OEM design, the lower part of the hose near the caliper would be a lot closer to the coil spring as the suspension travels.

    Truck (12) - Copy.jpg

    Also, I highly recommend getting a flare nut wrench for brake fittings - they don't round out fittings as easily as box end wrenches. https://www.amazon.com/Sunex-980906...845714&sprefix=10mm+flare,aps,265&sr=8-7&th=1
     
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  10. Jul 26, 2022 at 7:57 AM
    #10
    snivilous

    snivilous Member

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    Just zip tie the shit out of it and that's not an issue :D
     
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  11. Jul 26, 2022 at 6:06 PM
    #11
    Hi06silver

    Hi06silver [OP] Fat. Thumbs.

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    Thanks for the input y'all. Got the new line in after tapping. All went well except when I went bleed them...broken bleeder screw. At least it's not open!
     
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