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Home >> Infiniti >> 2021 >> Q50 Signature Edition, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Transfer Case (Service Information)) >> Disassembly And Assembly >> Front Final Drive >> Front Final Drive Pinion >> FRONT FINAL DRIVE PINION : Adjustment >> Companion Flange RUNOUT

Companion Flange RUNOUT

WARNING: This page is about a different variant/trim than selected.
  1. Fit a dial indicator onto the companion flange face (inner side of the propeller shaft mounting bolt holes).
    GNSJSDIA0116Z-116Courtesy of NISSAN NORTH AMERICA, INC.
  2. Rotate companion flange to check for runout.

    Companion flange face runout

    : Refer to FRONT FINAL DRIVE : Service Data .
  3. Fit a test indicator to the inner side of companion flange (socket diameter).
  4. Rotate companion flange to check for runout.

    Inner side of the companion flange runout

    : Refer to FRONT FINAL DRIVE : Service Data .
  5. If the runout value is outside the runout limit, follow the procedure below to adjust.
    1. Check for runout while changing the phase between companion flange and drive pinion by 90 deg. step, and search for the position where the runout is the minimum.
    2. If the runout value is still outside of the limit after the phase has been changed, possible cause will be an assembly malfunction of drive pinion and pinion bearing and malfunction of pinion bearing. Check for these items and repair if necessary.
    3. If the runout value is still outside of the limit after the check and repair, replace companion flange.
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