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MAINSHAFT And Gear: Assembly

WARNING: This page is about a different variant/trim than selected.
CAUTION:
  • Select mainshaft rear bearing adjusting shim, as per the following procedure when replacing mainshaft adjusting shim, 6th main gear, 5th main gear, or 4th main gear.
    • Replace mainshaft adjusting shim.
      1. If new mainshaft adjusting shim is thinner than previous one, offset the thickness difference by selecting thicker mainshaft rear bearing adjusting shim.
      2. If new mainshaft adjusting shim is thicker than previous one, offset the thickness difference by selecting thinner mainshaft rear bearing adjusting shim.
  • Replace 6th main gear, 5th main gear, or 4th main gear.
    1. Measure the thickness of the main gear used before and the new main gear
    2. Increase the thickness of the mainshaft rear bearing adjusting shim, if the difference is smaller than 0.025 mm (0.0010 in).
  • Replace transaxle assembly when replacing mainshaft.
  • For installation 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: Input Shaft
    G04812793Courtesy of NISSAN NORTH AMERICA, INC.
  • Do not reuse snap ring.
  1. Install mainshaft front bearing inner race (1) using Tool (A).
    Fig 2: Installing Mainshaft Front Bearing Inner Race Using Drift
    G04812819Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:

    Replace mainshaft front bearing outer race and mainshaft front bearing inner race as a set.

    Do not reuse mainshaft front bearing inner or outer race.

    Tool number : ST36720030 (-)
  2. Apply gear oil to 1st inner baulk ring, 1st synchronizer cone, 1st outer baulk ring, 2nd inner baulk ring, 2nd synchronizer cone, and 2nd outer baulk ring.
    CAUTION:
    • Replace 1st inner baulk ring, 1st synchronizer cone, and 1st outer baulk ring as a set.
    • Replace 2nd inner baulk ring, 2nd synchronizer cone, and 2nd outer baulk ring as a set.
  3. Install insert keys and 1st-2nd coupling sleeve to 1st-2nd synchronizer hub.
    CAUTION:

    Replace 1st-2nd synchronizer hub and 1st-2nd coupling sleeve as a set.

  4. Install 1st main gear (1), 1st inner baulk ring, 1st synchronizer cone, 1st outer baulk ring, 1st-2nd synchronizer hub assembly (2), 2nd inner baulk ring, 2nd synchronizer cone, and 2nd outer baulk ring.
    Fig 3: Installing Bushing Using Drift
    G04812820Courtesy of NISSAN NORTH AMERICA, INC.
  5. Install bushing (3) using Tool (A).
    Tool number : ST32102700 (-)
  6. Install 3rd main gear (1) and 2nd main gear (2) using Tool (A).
    Tool number : KV32102700 (-)
    Fig 4: Installing 3rd Main Gear And 2nd Main Gear Using Drift
    G04812821Courtesy of NISSAN NORTH AMERICA, INC.
  7. Measure dimension (L) as shown in the figure. Select mainshaft adjusting shim (1) according to the following list, and then install it to mainshaft.
    Fig 5: 3rd Main Gear And 2nd Main Gear Dimension
    G04812822Courtesy of NISSAN NORTH AMERICA, INC.
    (2) : Mainshaft
    (3) : 3rd main gear

    Unit: mm (in)

    Dimension (L) Mainshaft adjusting shim thickness
    147.690 - 147.666 (5.8146 - 5.8136) 1.500 (0.0591)
    147.665 - 147.641 (5.8136 - 5.8126) 1.525 (0.0600)
    147.640 - 147.616 (5.8126 - 5.8116) 1.550 (0.0610)
    147.615 - 147.591 (5.8116 - 5.8107) 1.575 (0.0620)
    147.590 - 147.566 (5.8106 - 5.8097) 1.600 (0.0630)
    147.565 - 147.541 (5.8096 - 5.8087) 1.625 (0.0640)
    147.540 - 147.516 (5.8086 - 5.8077) 1.650 (0.0650)
    147.515 - 147.491 (5.8077 - 5.8067) 1.675 (0.0659)
    147.490 - 147.466 (5.8067 - 5.8057) 1.700 (0.0669)
    147.465 - 147.441 (5.8057 - 5.8048) 1.725 (0.0679)
    147.440 - 147.416 (5.8047 - 5.8038) 1.750 (0.0689)
    147.415 - 147.391 (5.8037 - 5.8028) 1.775 (0.0699)
  8. Install 4th main gear (1) using Tool (A).
    Tool number : KV32102700 (-)
    Fig 6: Installing 4th Main Gear Using Drift
    G04812823Courtesy of NISSAN NORTH AMERICA, INC.
  9. Install 5th main gear (1) using Tool (A).
    Tool number : KV32102700 (-)
    Fig 7: Installing 5th Main Gear Using Drift
    G04812824Courtesy of NISSAN NORTH AMERICA, INC.
  10. Install 6th main gear (1) using Tool (A).
    Fig 8: Installing 6th Main Gear Using Drift
    G04812825Courtesy of NISSAN NORTH AMERICA, INC.
    Tool number : KV32102700 (-)
  11. Install mainshaft rear bearing inner race (1) using Tool (A).
    Fig 9: Installing Mainshaft Rear Bearing Inner Race Using Drift
    G04812826Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:

    Replace mainshaft rear bearing inner race and mainshaft rear bearing outer race as a set.

    Tool number : ST30901000 (J-26010-01)
  12. Install snap ring.
    CAUTION:

    Do not reuse snap ring.

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