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Home >> Infiniti >> 2002 >> G20 Automatic, RE4F03W >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Manual Transaxle) >> Assembly >> Transaxle Case

Transaxle Case

WARNING: This page is about a different variant/trim than selected.
  1. Insert differential oil seal into differential case until it becomes flush with case end face.
    Fig 1: Inserting Differential Oil Seal Into Differential Case
    G03114766Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Install welch plug into transaxle case.
    Fig 2: Installing Welch Plug Into Transaxle Case
    G03114767Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Calculate dimension "N" (thickness of adjusting shim) using the following procedure to satisfy specification of end play for differential side bearing.
    1. End play: 0.15--0.21 mm (0.0059--0.0083 in) 
      1. Dimension "N" = (N1 - N2) + End play 
        1. N: Thickness of adjusting shim 
        2. N1: Distance between clutch housing case end face and mounting face of adjusting shim 
        3. N2: Distance between differential side bearing and transaxle case 
    2. Differential side bearing adjusting shims: 
      1. Refer to SDS,  DIFFERENTIAL SIDE BEARING ADJUSTING SHIMS   . 
    Fig 3: Measuring Adjusting Shim Thickness Dimensions
    G03114768Courtesy of NISSAN MOTOR CO., U.S.A.
    1. Using dial gauge and scale, measure dimension "N1" between clutch housing case end face and mounting face of adjusting shim.
      Fig 4: Measuring Dimension "N1" Between Clutch Housing Case End Face & Adjusting Shim Mounting Face
      G03114769Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Install outer race onto differential side bearing on final gear side. Holding lightly the outer race horizontally by hand, rotate final gear five times or more (for smooth movement of bearing roller).
    3. Using dial gauge and scale as shown in the figure, measure dimension "N2" between differential side bearing outer race and transaxle case end face.
    Fig 5: Measuring Dimension "N2" Between Differential Side Bearing Outer Race & Transaxle Case End Face
    G03114770Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Install selected shim and bearing outer race.
    Fig 6: Installing Shim & Bearing Outer Race
    G03114771Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Measure turning torque of final drive assembly.
    1. Turning torque of final drive assembly (New bearing): 
      1. 2.9-6.9 N.m (30--70 kg.cm, 26-61 in.lb) 
    • When old bearing is used again, turning torque will be slightly less than the above. 
    • Make sure torque is close to the specified range. 
    • Changes in turning torque of final drive assembly per revolution should be within 1.0 N.m (10 kg.cm, 8.7 in.lb) without binding. 
    Fig 7: Measuring Final Drive Assembly Turning Torque
    G03114772Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Calculate dimension "O" (thickness of adjusting shim) using the following procedure to satisfy specification of end play for input shaft rear bearing.
    1. End play: 0 - 0.06 mm (0 - 0.0024 in) 
      1. Dimension "O" = (O1 - O2) + End play 
        1. O: Thickness of adjusting shim 
        2. O1: Distance between transaxle case end face and mounting face of adjusting shim 
        3. O2: Distance between clutch housing case end face and end face of input shaft rear bearing 
    2. Input shaft rear bearing adjusting shims: 
      1. Refer to SDS,  INPUT SHAFT REAR BEARING ADJUSTING SHIM   . 
    Fig 8: Checking Adjusting Shim Thickness Dimensions
    G03114773Courtesy of NISSAN MOTOR CO., U.S.A.
    1. Using block gauge, scale, and dial gauge, measure dimension "O1" between transaxle case end face and mounting face of adjusting shim.
      Fig 9: Measuring Dimension "O1" Between Transaxle Case End Face & Adjusting Shim Mounting Face
      G03114774Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Using gauge block, scale, and dial gauge as shown in the figure, measure dimension "O2" between clutch housing case end face and end face of input shaft rear bearing.
  7. Install selected input shaft rear bearing adjusting shim onto input shaft.
    Fig 10: Measuring Dimension "O2" Between Clutch Housing Case End Face & Input Shaft Rear Bearing End Face
    G03114775Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Install oil gutter into transaxle case.
    Fig 11: Installing Oil Gutter Into Transaxle Case
    G03114776Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Install two magnets.
    Fig 12: Installing Magnets
    G03114777Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Clean mating surfaces of clutch housing and transaxle case. Check for cracks and damage. Then, apply Three Bond TB1215, Loctite Part No. 51813 or equivalent.
    Fig 13: Locating Sealant Applying Point
    G03114778Courtesy of NISSAN MOTOR CO., U.S.A.
  11. Install transaxle case onto clutch housing, and tighten mounting bolts with specified torque.
    1. Tightening torque: 
      1. Refer to  CASE COMPONENTS   . 
    Fig 14: Installing & Tightening Transaxle Case Mounting Bolts Onto Clutch Housing,
    G03114779Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Apply Three Bond TB1215, Loctite Part No. 51813 or equivalent to threads of reverse switch, PNP switch, and drain plug, and install them. (Fill the case with oil before installation of filler plug.)
  13. Install speedometer pinion assembly.
    CAUTION: Do not reuse O-ring.
    Fig 15: Locating Sealant Applying Point
    G03114780Courtesy of NISSAN MOTOR CO., U.S.A.
  14. Install check springs and check balls. Apply sealant to the thread on the check plug, and install it.
    Fig 16: Installing Check Springs & Check Balls
    G03114781Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Calculate thickness of adjusting shim using the following procedure to satisfy specification of end play for mainshaft rear bearing.
    1. End play: 0 - 0.06 mm (0 - 0.0024 in) 
      1. Dimension "P" = (P1 - P2) + End play 
        1. P: Thickness of adjusting shim 
        2. P1: Distance between transaxle case end face and mainshaft rear bearing 
        3. P2: Distance between adjusting shim end face of rear cover and transaxle mounting face 
    2. Mainshaft rear bearing adjusting shims: 
      1. Refer to SDS,  MAINSHAFT REAR BEARING ADJUSTING SHIM   . 
    Fig 17: Checking Adjusting Shim Thickness
    G03114782Courtesy of NISSAN MOTOR CO., U.S.A.
    1. Using dial gauge as shown in the figure, measure dimension "P1" between transaxle case end face and mainshaft rear bearing.
      Fig 18: Measuring Dimension "P1" Between Transaxle Case End Face & Mainshaft Rear Bearing
      G03114783Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Using dial gauge as shown in the figure, measure dimension "P2" between adjusting shim mounting face of rear cover and transaxle mounting face.
    Fig 19: Measuring Dimension "P2" Between Adjusting Shim Rear Cover Mounting Face & Transaxle Mounting Face
    G03114784Courtesy of NISSAN MOTOR CO., U.S.A.
  16. Using snap ring pliers as shown in the figure, install snap ring.
    CAUTION: Do not reuse snap ring.
  17. Install selected mainshaft adjusting shim.
    Fig 20: Installing Mainshaft Adjusting Shim
    G03114785Courtesy of NISSAN MOTOR CO., U.S.A.
  18. Install reverse idler gear, O-ring, thrust washers (front, rear), and bearing onto reverse idler shaft.
  19. Install snap ring into transaxle case using snap ring pliers.
    CAUTION:
    • Do not reuse snap ring.
    • Do not reuse O-ring.
    • Before installation, apply gear oil to O-ring.
    Fig 21: Installing Reverse Idler Gear, O-Ring, Thrust Washers (Front & Rear) & Bearing Onto Reverse Idler Shaft
    G03114786Courtesy of NISSAN MOTOR CO., U.S.A.
  20. Using feeler gauge, measure the end play of snap ring, and select a snap ring suitable to satisfy the following specification.
    1. End play: 
      1. 0.05--0.25 mm (0.0020--0.0098 in) 
    2. Available snap ring: 
      1. Refer to SDS,  AVAILABLE SNAP RINGS   . 
    Fig 22: Measuring Snap Ring End Play
    G03114787Courtesy of NISSAN MOTOR CO., U.S.A.
  21. Install selected snap ring.
    CAUTION: Do not reuse snap ring.
  22. Apply gear oil to rear cover O-ring, and install rear cover, side cover gasket, and side cover. Then tighten mounting bolts with specified torque.
    1. Tightening torque: 
      1. Refer to  CASE COMPONENTS   . 
    CAUTION: Do not reuse mounting bolts for rear cover and side cover.
    Fig 23: Installing Snap Ring, Rear Cover, Side Cover Gasket & Side Cover
    G03114788Courtesy of NISSAN MOTOR CO., U.S.A.
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