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Home >> Nissan-Datsun >> 2009 >> 370Z Base, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Manual Transmission (FS6R31A)) >> Disassembly And Assembly >> MAINSHAFT And Gear >> Disassembly

MAINSHAFT And Gear: Disassembly

WARNING: This page is about a different variant/trim than selected.
  1. Remove 4th main gear with the following procedure.
    1. Set a puller [Commercial service tool] to 4th main gear.
    2. Remove mainshaft bearing and reverse main gear bushing together with 4th main gear from mainshaft with a pressing machine.
      CAUTION: Never drop mainshaft.
  2. Remove 3rd-4th main spacer from mainshaft.
    Fig 1: Pressing Out Reverse Main Gear Bushing, Mainshaft Bearing And 4Th Main Gear
    G04875684Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Remove 1st main gear with the following procedure.
    1. Set a puller [Commercial service tool] to 1st main gear.
    2. Remove 3rd main gear together with 1st main gear from mainshaft with a pressing machine.
      CAUTION:
      • Never damage 1st outer bulk ring.
      • Never drop mainshaft.
  4. Remove 1st outer bulk ring, 1st synchronizer cone, 1st inner bulk ring, and 1st needle bearing from mainshaft.
    Fig 2: Removing 1st Needle Bearing From Mainshaft
    G04875685Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Remove 2nd main gear with the following procedure.
    1. Set a puller [Commercial service tool] to 2nd main gear.
      CAUTION: Set V-block in the position where V-block does not contact with collar of mainshaft.
    2. Remove 1st gear bushing, 1st-2nd synchronizer hub assembly, 2nd outer bulk ring, 2nd synchronizer cone, and 2nd inner bulk together with 2nd main gear from mainshaft with a pressing machine.
      CAUTION:
      • Never damage mainshaft.
      • Never drop mainshaft.
  6. Remove 1st-2nd spread springs, 1st-2nd shifting inserts, and 1st-2nd coupling sleeve from 1st-2nd synchronizer hub.
  7. Remove 2nd needle bearing from mainshaft.
    Fig 3: Removing 2nd Needle Bearing Of Mainshaft
    G04875686Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Remove snap ring from mainshaft.
    Fig 4: Identifying Mainshaft Snap Ring
    G04897754Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Remove 6th main gear with the following procedure.
    1. Set a puller [Commercial service tool] to 6th main gear.
      CAUTION: Set V-block in the position where V-block does not contact with collar of mainshaft.
    2. Remove 6th bulk ring and 5th-6th synchronizer hub assembly together with 6th main gear from mainshaft with a pressing machine.
      CAUTION:
      • Never damage mainshaft.
      • Never drop mainshaft.
        Fig 5: Pressing Out 6th Main Gear And 5th-6th Synchronizer Hub Assembly Using Tool
        G04875687Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Remove 5th-6th spread springs, 5th-6th shifting inserts, and 5th-6th coupling sleeve from 5th-6th synchronizer hub.
  11. Remove 6th needle bearing from mainshaft.