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Home >> Infiniti >> 2018 >> Q50 Pure, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 139 (Front Final Drive) >> Unit Disassembly And Assembly >> Drive Pinion >> Disassembly and Assembly >> Assembly

Disassembly and Assembly: Assembly

WARNING: This page is about a different car, the 2019 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install pinion front and rear bearing outer races using drift (A) [SST: ST37820000 (--)].
    G04076268Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • At first, using a hammer, tap bearing outer race until it becomes flat to gear carrier.
    • Never reuse pinion front and rear bearing outer race.
  2. Temporarily install pinion height adjusting washer SYMBOL .
    GNSJSDIA0760Z-760Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Pay attention to the direction of pinion height adjusting washer. (Assemble as shown in the figure.)

    When hypoid gear set has been replaced 

    • Select pinion height adjusting washer. Refer to Adjustment .

    When hypoid gear set has been reused 

    • Temporarily install the removed pinion height adjusting washer or same thickness washer to drive pinion.
  3. Install pinion rear bearing inner race SYMBOL to drive pinion with the drift (A) [SST: ST30032000 (J-26010-01)].
    GNSJSDIA0761Z-761Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Never reuse pinion rear bearing inner race.
  4. Temporarily assemble removed drive pinion adjusting washer and drive pinion bearing adjusting washer or same thickness of them to drive pinion.
    G04076271Courtesy of NISSAN NORTH AMERICA, INC.
  5. Apply gear oil to pinion rear bearing, and assemble drive pinion into gear carrier.
  6. Apply gear oil to pinion front bearing, and assemble pinion front bearing inner race to drive pinion assembly.
    CAUTION: Never reuse pinion front bearing inner race.
  7. Using drift (A) (commercial service tool), press the pinion front bearing inner race to drive pinion as far as drive pinion lock nut can be tightened.
    GNSJSDIB0195Z-195Courtesy of NISSAN NORTH AMERICA, INC.
  8. Adjust pinion bearing preload. If necessary, select the appropriate drive pinion adjusting washer and drive pinion bearing adjusting washer. Refer to Adjustment .
  9. Using the drifts (A and B), install front oil seal as shown in figure.
    G04076273Courtesy of NISSAN NORTH AMERICA, INC.

    A

    Drift [SST: ST33400001 (J-26082)]

    B

    Drift [SST: KV38102510 (--)]
    CAUTION:
    • Never reuse oil seal.
    • When installing, never incline oil seal.
    • Apply multi-purpose grease onto oil seal lips, and gear oil onto the circumference of oil seal.
  10. Install companion flange.
    NOTE: When reusing drive pinion, align the matching mark SYMBOL of drive pinion with the matching mark SYMBOL of companion flange, and then install companion flange SYMBOL .
    G04076251Courtesy of NISSAN NORTH AMERICA, INC.
  11. Apply anti-corrosion oil to the thread and seat of new drive pinion lock nut, and temporarily tighten drive pinion lock nut to drive pinion.
    CAUTION: Never reuse drive pinion lock nut.
  12. While holding companion flange with the flange wrench (commercial service tool), tighten drive pinion lock nut within the limits of specified torque so as to keep the pinion bearing preload within a standard values, using preload gauge (A) [SST: ST3127S000 (J-25765-A)].
    G04076267Courtesy of NISSAN NORTH AMERICA, INC.

    Drive pinion lock nut tightening torque

    : Refer to Exploded View .

    Pinion bearing preload

    : Refer to Preload Torque .
    CAUTION:
    • Adjust to the lower limit of the drive pinion lock nut tightening torque first.
    • After adjustment, rotate drive pinion back and forth 2 to 3 times to check for unusual noise, rotation malfunction, and other malfunctions.
  13. Install differential case assembly. Refer to Disassembly and Assembly .
    CAUTION: Never install carrier cover yet.
  14. Check and adjust drive gear runout, tooth contact, and drive gear to drive pinion backlash. Refer to Adjustment .
  15. Check companion flange runout. Refer to Adjustment .
  16. Check total preload torque. Refer to Adjustment .
  17. Install carrier cover. Refer to Disassembly and Assembly .
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