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Home >> Acura >> 2003 >> MDX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 86 (Front Suspension) >> Knuckle/Hub Bearing Unit Replacement >> Knuckle Replacement

Knuckle Replacement

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the hub bearing unit.
  2. Remove the wheel speed sensor (A) from the knuckle (B). Do not disconnect the wheel speed sensor connector.
    Fig 1: Wheel Speed Sensor From Knuckle With Torque Specification
    G05486548Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Remove the cotter pin (A) from the tie-rod end ball joint, then remove the nut (B).
    NOTE: During installation, install the new cotter pin after tightening the nut, and bend its end as shown.
    Fig 2: Tie-Rod End Ball Joint From Knuckle With Torque Specification
    G05486549Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Disconnect the tie-rod end ball joint from the knuckle using the ball joint remover (see BALL JOINT REMOVAL ).
  5. Remove the lock pin (A) from the lower arm ball joint, then remove the castle nut (B).
    NOTE: During installation, install the lock pin as shown after tightening the new castle nut.
    Fig 3: Lower Arm Ball Joint From Knuckle With Torque Specification
    G05486550Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Disconnect the lower arm ball joint from the knuckle using the ball joint thread protector, and the ball joint remover (see BALL JOINT REMOVAL ).
  7. Remove the damper pinch bolts (A) and flange nuts (B) from the damper, then remove the knuckle (C).
    NOTE: During installation, install new damper pinch bolts and new flange nuts.
    Fig 4: Damper Pinch Bolts And Flange Nuts From Damper With Torque Specification
    G05486551Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Install the knuckle in the reverse order of removal, and note these items:
    • First install all the components, and lightly tighten the bolts and nuts, then raise the suspension to load it with the vehicle's weight before fully tightening to the specified torque values.
    • Be careful not to damage the ball joint boot when connecting the knuckle.
    • Before connecting the lower arm ball joint to the knuckle, degrease the threaded section and tapered portion of the ball joint pin, the ball joint connecting hole, the threaded section and mating surfaces of the castle nut.
    • Torque the castle nut to the lower torque specification, then tighten it only far enough to align the slot with the ball joint pin hole. Do not align the castle nut by loosening it.
    • Before installing the wheel, clean the mating surfaces of the brake disc and the inside of the wheel.
    • Check the wheel alignment, and adjust it if necessary (see WHEEL ALIGNMENT ).
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