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Home >> Infiniti >> 2008 >> G37 Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Manual Transmission) >> Disassembly And Assembly >> Transmission Assembly >> Assembly >> Case And Extension

Case And Extension

WARNING: This page is about a different variant/trim than selected.
  1. Install counter front bearing to transmission case.
  2. Install oil gutter to transmission case.
  3. Install breather tube to transmission case.
    CAUTION: Never reuse breather tube.
    Fig 1: Identifying Counter Front Bearing
    G04875656Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Apply recommended sealant to transmission case adapter plate mounting surface as shown in the figure.
    CAUTION: Remove old sealant adhering to the mounting surfaces. Also remove any moisture, oil, or foreign material adhering to both mounting surfaces.
    Fig 2: Applying Sealant To Transmission Case Adapter Plate Mounting Surface
    G04875764Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Place adapter plate in transmission case using a soft hammer to tap adapter plate to install it into transmission case.
    Fig 3: Tapping Adapter Plate
    G04875765Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Install snap ring to main drive gear bearing using snap ring pliers.
    CAUTION: Never reuse snap ring.
    Fig 4: Identifying Snap Ring To Main Drive Gear Bearing Using Snap Ring Pliers
    G04875654Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Tighten baffle plate mounting nut to the specified torque.
  8. Apply multi-purpose grease to lip of front cover oil seal.
    Fig 5: Identifying Baffle Plate Mounting Nut
    G04875653Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Install front cover oil seal (1) to front cover using the drift (A) [SST: KV38102100 (J-25803-01)].

    Dimension "H" : 8.55 - 9.55 mm (0.3366 - 0.3760 in) 

    CAUTION:
    • Never reuse front cover oil seal.
    • When installing, never incline front cover oil seal.
  10. Install front cover according to the following.
    1. Install front cover gasket and front cover to transmission case.
      CAUTION:
      • Never reuse front cover gasket.
      • Never damage front cover oil seal.
      • Remove any moisture, oil, or foreign material adhering to both mating surfaces.
      Fig 6: Identifying Front Cover Oil Seal Dimension
      G05225903Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Temporary tightening mounting bolt and sealing bolt (1).
      Fig 7: Identifying Mounting Bolt
      G05733880Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Temporary tightening remaining mounting bolts and sealing bolts (1).
      Fig 8: Locating Remaining Mounting Bolts
      G05733812Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Tighten mounting bolts and sealing bolts (1) to the specified torque in order as shown on the figure.
  11. Apply recommended grease to counter end bearing.
  12. Install counter end bearing to rear extension.
    CAUTION: Never reuse counter end bearing.
    Fig 9: Identifying Mounting Bolts Tightening Sequence
    G05733882Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Install rear extension oil gutter and cap to rear extension and then tighten mounting bolt to specified torque.
  14. Install rear extension dust cover to rear extension.
  15. Install brackets to transmission case and then tighten mounting bolt to specified torque.
  16. Apply recommended grease to reverse idler needle bearing.
  17. Install reverse idler shaft, reverse idler needle bearing, reverse idler gear and reverse idler thrust washer to adapter plate.
  18. Apply multi-purpose grease to striking rod oil seal lip.
    CAUTION: Never reuse striking rod oil seal.
  19. Install striking rod oil seal to rear extension using the drift [SST: ST33061000 (J-8107-2)].
    CAUTION: When installing, never incline striking rod oil seal.
  20. Apply multi-purpose grease to lip of rear oil seal.
    CAUTION: Never reuse rear oil seal.
    Fig 10: Applying Grease To Striking Rod Oil Seal Lip Using Drift
    G04875772Courtesy of NISSAN MOTOR CO., U.S.A.
  21. Install rear oil seal (1) to rear extension using the drift [SST: ST33400001 (J-26082)].

    Dimension "H" : 1.2 - 2.2 mm (0.047 - 0.087 in) 

    Fig 11: Identifying Rear Oil Seal Dimension
    G05225908Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION: When installing, never incline rear oil seal.
  22. Apply recommended sealant to adapter plate rear extension mounting surface as shown in the figure.
    CAUTION: Remove old sealant adhering to the mounting surfaces. Also remove any moisture, oil, or foreign material adhering to both mounting surfaces.
    Fig 12: Applying Sealant To Adapter Plate Rear Extension Mounting Surface
    G04875774Courtesy of NISSAN MOTOR CO., U.S.A.
  23. Install rear extension to adapter plate and then tighten mounting bolts to the specified torque in order as shown on the figure.
    CAUTION: Never damage rear oil seal and striking rod oil seal.
  24. Install control lever housing to rear extension and then tighten mounting bolts to the specified torque.
    CAUTION: Never hold control lever housing to prevent the bushing of control lever housing from deformation when moving transmission assembly.
    Fig 13: Identifying Rear Extension Adapter Plate Mounting Bolts Tightening Sequence
    G04875775Courtesy of NISSAN MOTOR CO., U.S.A.
  25. Apply gear oil to return spring plungers.
  26. Install return spring plungers and return springs into rear extension.
    RETURN SPRING IDENTIFICATION MARK REFERENCE

    Region Return spring identification mark Plunger groove
    RH Brown No
    LH Blue Yes
    Fig 14: Identifying Return Spring Plugs
    G04875776Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION: The right and left return springs and return spring plungers are different, so make sure they are installed correctly.
  27. Apply recommended sealant to threads of return spring plugs and then tighten return spring plugs to the specified torque.
    CAUTION: Remove old sealant and oil adhering to threads.
  28. Install shift check pin as a one unit with control bracket to rear extension and then tighten mounting bolts to the specified torque.
  29. Install plunger to rear extension and then screwing park/neutral position (PNP) switch and back-up lamp switch to rear extension with 1 - 2 pitches.
  30. Apply recommended sealant to threads of switches and tighten switches to the specified torque.
    Fig 15: Locating Control Bracket Mounting Bolts
    G04875777Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION: Remove old sealant and oil adhering to threads.
  31. Install brackets to rear extension and then tighten bracket mounting bolts to the specified torque.
  32. Install boot and control rod to striking rod.
  33. Install the retaining pin into the control rod using a pin punch [Commercial service tool]. Then fit the boot to the striking rod oil seal and the groove on the control rod.
    CAUTION: Never reuse retaining pin.
  34. Install boot to control rod.
    CAUTION: Fit the boot to the groove on the control rod.
    Fig 16: Identifying Retaining Pin
    G05225832Courtesy of NISSAN MOTOR CO., U.S.A.
  35. Install check ball and check select spring into rear extension.
  36. Install rear extension upper cover gasket and rear extension upper cover to rear extension.
    Fig 17: Identifying Check Select Spring And Check Ball
    G05225831Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Never reuse rear extension upper cover gasket.
    • Avoid tangling check select spring.
  37. Tighten rear extension upper cover bolts to the specified torque in order as shown on the figure.
  38. Install gasket to drain plug and then install it to transmission case. Tighten drain plug to the specified torque.
    CAUTION: Never reuse gasket.
  39. Install gasket to filler plug and then install it to transmission case. Tighten filler plug to the specified torque.
    CAUTION:
    • Never reuse gasket.
    • After oil is filled, tighten filler plug to specified torque.
    Fig 18: Identifying Rear Extension Upper Cover Bolts Tightening Sequence
    G05225915Courtesy of NISSAN MOTOR CO., U.S.A.
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