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Home >> Nissan-Datsun >> 2015 >> Sentra SL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Manual Transmission) >> Unit Disassembly And Assembly >> MAINSHAFT And Gear >> Disassembly

MAINSHAFT And Gear: Disassembly

WARNING: This page is about a different variant/trim than selected.
CAUTION:
  • Fix mainshaft in a vise with back plate, and then remove gears and snap rings.
  • For removal of snap ring, set snap ring pliers and flat pliers at both sides of snap ring. While expanding snap ring with snap ring pliers, move snap ring with flat pliers.
    Fig 1: Identifying Input Shaft
    G04812793Courtesy of NISSAN NORTH AMERICA, INC.
  • Disassemble gear components putting direction marks on the parts that never affect any functions.
  1. Remove snap ring (1).
    CAUTION:

    Do not reuse snap ring.

    Fig 2: Removing Snap Ring
    G04812810Courtesy of NISSAN NORTH AMERICA, INC.
  2. Remove 6th main gear (1) and mainshaft rear bearing inner race (2), with the following procedure.
    Fig 3: Removing Mainshaft Rear Bearing Inner Race And 6th Main Gear Using Drift
    G04812811Courtesy of NISSAN NORTH AMERICA, INC.
    1. Set a suitable tool to 6th main gear.
    2. Remove mainshaft rear bearing inner race and 6th main gear, using Tool (A).
      Tool number : ST33052000 (-)
  3. Remove 4th main gear (1) and 5th main gear (2) with the following procedure.
    Fig 4: Removing 5th And 4th Main Gear
    G04812812Courtesy of NISSAN NORTH AMERICA, INC.
    1. Set a suitable tool to 4th main gear.
    2. Remove 5th main gear and 4th main gear, using Tool (A).
      Tool number : ST33052000 (-)
  4. Remove mainshaft adjusting shim.
  5. Remove 1st main gear (1), 1st-2nd synchronizer hub assembly (2), 2nd main gear (3), and 3rd main gear (4) with the following procedure.
    Fig 5: Removing 1st Main Gear, 1st-2nd Synchronizer Hub Assembly, 2nd Main Gear And 3rd Main Gear
    G04812813Courtesy of NISSAN NORTH AMERICA, INC.
    1. Set a suitable tool to 1st main gear.
    2. Remove 3rd main gear, busing, 2nd main gear, 2nd inner baulk ring, 2nd synchronizer cone, 2nd outer baulk ring, 1st-2nd synchronizer hub assembly, 1st outer baulk ring, 1st synchronizer cone, 1st inner baulk ring, and 1st main gear using Tool (A).
      Tool number : ST33052000 (-)
    3. Remove insert keys and 1st-2nd coupling sleeve from 1st-2nd synchronizer hub.
  6. Remove mainshaft front bearing inner race (1) with the following procedure.
    Fig 6: Removing Mainshaft Front Bearing Inner Race Using Drift
    G04812814Courtesy of NISSAN NORTH AMERICA, INC.
    1. Set a suitable tool to mainshaft front bearing inner race.
    2. Remove mainshaft front bearing inner race using Tool (A).
      Tool number : ST33052000 (-)
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