2011 Steering Knuckle Replacement

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

Tags:
  1. Kthi

    Kthi Junior Member

    Joined:
    Jun 25, 2018
    16
    1
    0
    Location:
    California
    Vehicle:
    2011 Prius
    Model:
    III
    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

    Joined:
    Oct 17, 2010
    57,957
    39,988
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Clarify "stripped". Any lube on the bolt threads?
     
    #2 Mendel Leisk, Mar 1, 2025
  3. Kthi

    Kthi Junior Member

    Joined:
    Jun 25, 2018
    16
    1
    0
    Location:
    California
    Vehicle:
    2011 Prius
    Model:
    III
    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

    Joined:
    Oct 17, 2010
    57,957
    39,988
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Tried running another one of the bolts into the hole in question?
     
    #4 Mendel Leisk, Mar 1, 2025
  5. Kthi

    Kthi Junior Member

    Joined:
    Jun 25, 2018
    16
    1
    0
    Location:
    California
    Vehicle:
    2011 Prius
    Model:
    III
    Here is a picture of bolt
     

    Attached Files:

    #5 Kthi, Mar 1, 2025
  6. Kthi

    Kthi Junior Member

    Joined:
    Jun 25, 2018
    16
    1
    0
    Location:
    California
    Vehicle:
    2011 Prius
    Model:
    III
    The bolt is fine
     
    #6 Kthi, Mar 1, 2025
  7. Kthi

    Kthi Junior Member

    Joined:
    Jun 25, 2018
    16
    1
    0
    Location:
    California
    Vehicle:
    2011 Prius
    Model:
    III
    No, the bolt is not stripped
     
    #7 Kthi, Mar 1, 2025
  8. Kthi

    Kthi Junior Member

    Joined:
    Jun 25, 2018
    16
    1
    0
    Location:
    California
    Vehicle:
    2011 Prius
    Model:
    III
    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

    Joined:
    May 29, 2018
    6,884
    3,626
    0
    Location:
    Florida
    Vehicle:
    2010 Prius
    Model:
    Two
    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

    Joined:
    Oct 17, 2010
    57,957
    39,988
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    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

    Joined:
    Oct 17, 2010
    57,957
    39,988
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Agree:
     

    Attached Files:

    #11 Mendel Leisk, Mar 1, 2025
(You must log in or sign up to post here.)