2011 Steering Knuckle Replacement

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Kthi, Mar 1, 2025.

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  1. Kthi

    Kthi Junior Member

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    Help... Doing front right brakes, it went wrong. Torque wrench set at 101ft-lbf and some how stripped upper bolt. Any feedback would be appreciated.

    INSTALL FRONT DISC BRAKE CYLINDER MOUNTING
    (a) Install the front disc brake cylinder mounting to the
    steering knuckle with the 2 bolts.
    Torque: 137 N·m (1394 kgf·cm, 101ft·lbf)
     
    #1 Kthi, Mar 1, 2025
  2. Mendel Leisk

    Mendel Leisk Senior Member

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    Clarify "stripped". Any lube on the bolt threads?
     
    #2 Mendel Leisk, Mar 1, 2025
  3. Kthi

    Kthi Junior Member

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    No lubrication or anti-seize used. When I pulled the bolt out the threads from the knuckle are on it :(
     
    #3 Kthi, Mar 1, 2025
  4. Mendel Leisk

    Mendel Leisk Senior Member

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    Tried running another one of the bolts into the hole in question?
     
    #4 Mendel Leisk, Mar 1, 2025
  5. Kthi

    Kthi Junior Member

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    Here is a picture of bolt
     

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    #5 Kthi, Mar 1, 2025
  6. Kthi

    Kthi Junior Member

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    The bolt is fine
     
    #6 Kthi, Mar 1, 2025
  7. Kthi

    Kthi Junior Member

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    No, the bolt is not stripped
     
    #7 Kthi, Mar 1, 2025
  8. Kthi

    Kthi Junior Member

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    Thanks for asking about the bolt. I went out checked. Not steering knuckle, but the caliper bracket... No threads in knuckle lol. So I need to replace the caliper bracket. Thank you
     
    #8 Kthi, Mar 1, 2025
  9. ASRDogman

    ASRDogman Senior Member

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    100 sounds like it's WAY too much. Where did you get that number from?
    Either the threads were already messed up, or cross threaded.

    You should double check that. And your torque wrench.

     
    #9 ASRDogman, Mar 1, 2025
    Tombukt2 likes this.
  10. Mendel Leisk

    Mendel Leisk Senior Member

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    101 ft/lb is the repair manual spec, for the caliper mounting bracket bolts. The bolts going onto the caliper slide pins are much lower torque.
     
    #10 Mendel Leisk, Mar 1, 2025
  11. Mendel Leisk

    Mendel Leisk Senior Member

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    Agree:
     

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    #11 Mendel Leisk, Mar 1, 2025
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