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Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (Symptom Diagnosis & Removal And Installation) (Except Hybrid) >> Unit Disassembly And Assembly >> Oil Pump, 2346 Brake, Front Brake Piston >> Disassembly

Oil Pump, 2346 Brake, Front Brake Piston: Disassembly

  1. Remove snap ring (1) from oil pump assembly using a flat-bladed screwdriver (A).
    GNSJPDIA1090Z-090Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Be careful not to scratch oil pump cover and 2346 brake retaining plate.
    • Be careful not to damage snap ring.
  2. Remove 2346 brake component part (retaining plate, drive plates, driven plates, and dish plate) (1) from oil pump assembly.
    GNSJPDIA1091Z-091Courtesy of NISSAN NORTH AMERICA, INC.
  3. Remove seal ring (1) from oil pump assembly.
    GNSJPDIA1092Z-092Courtesy of NISSAN NORTH AMERICA, INC.
  4. Set the clutch spring compressor (SST: KV31103800) (A) on front brake spring retainer and remove snap ring (fixing front brake spring retainer) (1) from oil pump assembly while compressing return spring.
    GNSJSDIA1729Z-729Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful not to expand snap ring excessively.
  5. Remove front brake spring retainer (1) from oil pump assembly.
    GNSJPDIA1094Z-094Courtesy of NISSAN NORTH AMERICA, INC.
  6. Set the clutch spring compressor [SST: KV31102400 (J-34285 and J-34285-87)] (A) on 2346 brake spring retainer and remove snap ring (fixing 2346 brake spring retainer) (1) from oil pump assembly while compressing return spring.
    GNSJSDIA1730Z-730Courtesy of NISSAN NORTH AMERICA, INC.

    B

    : Press
    CAUTION: Be careful not to expand snap ring excessively.
  7. Remove 2346 brake spring retainer (1) from oil pump assembly.
    GNSJPDIA1096Z-096Courtesy of NISSAN NORTH AMERICA, INC.
  8. Remove front brake piston (1) from oil pump assembly with compressed air. Refer to Oil Channel .
    GNSJPDIA1097Z-097Courtesy of NISSAN NORTH AMERICA, INC.

    A

    : Front brake pressure hole
    CAUTION: Care should be taken not to abruptly blow air. It makes piston incline, as the result, it becomes hard to disassemble the piston.
  9. Remove D-ring (inner) (1) and D-ring (outer) (2) from front brake piston.
    GNSJPDIA1098Z-098Courtesy of NISSAN NORTH AMERICA, INC.
  10. Remove 2346 brake piston (1) from oil pump assembly with compressed air. Refer to Oil Channel .
    GNSJPDIA1099Z-099Courtesy of NISSAN NORTH AMERICA, INC.

    A

    : 2346 brake pressure hole
    CAUTION: Care should be taken not to abruptly blow air. It makes piston incline, as the result, it becomes hard to disassemble the piston.
  11. Remove D-ring (large) (1) and D-ring (small) (2) from 2346 brake piston.
    GNSJPDIA1100Z-100Courtesy of NISSAN NORTH AMERICA, INC.
  12. Loosen bolts in opposite order shown in the figure below and remove oil pump housing from oil pump cover.
    Fig 1: Oil Pump Housing Bolt Tightening Sequence
    GNSJPDIA1101Z-101Courtesy of NISSAN NORTH AMERICA, INC.

    SYMBOL

    : Bolt
  13. Remove oil pump housing oil seal using a flat-bladed screwdriver.
    G04075848Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful not to scratch oil pump housing.
  14. Remove O-ring from oil pump housing.
    G04075849Courtesy of NISSAN NORTH AMERICA, INC.
  15. Remove O-ring (1) from oil pump cover.
    GNSJPDIA1102Z-102Courtesy of NISSAN NORTH AMERICA, INC.
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