CAMSHAFT (for Bank 1) INSTALLATION


  1. INSTALL CAMSHAFT BEARING CAP (for Bank 1)


    1. Apply a light coat of engine oil to the camshaft journals, camshaft housings and bearing caps.

    2. Install the No. 3 and No. 4 camshaft to the camshaft housing.

    3. A01GIGI

      Confirm the marks and numbers on the camshaft bearing caps and place them each in their proper positions and directions.

    4. A01GHROE01

      Temporarily install the 8 bolts in the order shown in the illustration.

  2. INSTALL CAMSHAFT HOUSING SUB-ASSEMBLY (for Bank 1)


    1. A01GMDHE01

      Make sure that the valve rocker arms are installed as shown in the illustration.

    2. A01GLUHE01

      Apply seal packing in a continuous line as shown in the illustration.

      Seal packing
      Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent
      Standard seal diameter
      3.5 to 4.0 mm (0.138 to 0.158 in.)

      Note


      • Remove any oil from the contact surface.

      • Install the camshaft housing within 3 minutes and tighten the bolts within 15 minutes after applying seal packing.

      • Do not start the engine for at least 2 hours after the installation.

    3. A01GJXWE01

      Install the camshaft housing, and install the 18 bolts in the order shown in the illustration.

      Torque:
      for bolt A
      10 N*m  { 102 kgf*cm, 7 ft.*lbf }
      except bolt A
      30 N*m  { 306 kgf*cm, 22 ft.*lbf }

      Note

      Make sure that the knock pin of the camshaft is positioned as shown in the illustration before installing the camshaft housing.

    4. A01GMMXE02

      Tighten the 8 bolts in the order shown in the illustration.

      Torque:
      16 N*m  { 163 kgf*cm, 12 ft.*lbf }

      Note

      Thoroughly wipe clean any seal packing.

  3. INSTALL NO. 3 CHAIN TENSIONER ASSEMBLY


    1. A01GLNRE01

      Install the chain tensioner with the 2 bolts.

      Torque:
      10 N*m  { 102 kgf*cm, 7 ft.*lbf }

    2. While pushing down the No. 3 chain tensioner, insert a pin with a diameter of 1.0 mm (0.039 in.) into the hole to fix it in place.

  4. INSTALL CHAIN SUB-ASSEMBLY (for Bank 1)


    1. A01GHNYE01

      Align the No. 1 chain's orange mark plates with the camshaft timing gear's timing mark, and attach the chain to the gear as shown in the illustration.

    2. A01GIYWE01

      Align the No. 1 chain's orange mark plate with the crankshaft timing gear's timing mark, and attach the chain to the gear as shown in the illustration.

    3. A01GMK6E01

      Align the No. 2 chain's mark plates (yellow) with the timing marks (1-dot mark) of the camshaft timing gear assembly and camshaft timing exhaust gear assembly, and attach the No. 2 chain to the gears as shown in the illustration.

      Tech Tips

      The crankshaft timing gear and camshaft exhaust gear assembly will be installed with the No. 1 and No. 2 chains connected to the gears.

    4. Install the crankshaft timing gear to the crankshaft.

    5. Align and attach the knock pin of the No. 3 camshaft with the pin hole of the camshaft timing gear assembly.

    6. Using the hexagonal portion of the No. 4 camshaft, align and attach the knock pin of the No. 4 camshaft with the pin hole of the camshaft timing exhaust gear assembly.

      Note

      Because the gears' timing mark positions may shift due to looseness of the No. 1 chain, use the hexagonal portion of the camshaft to hold the No. 3 camshaft in place until the No. 1 chain tensioner is installed.

    7. Remove the pin from the No. 2 chain tensioner.

  5. INSTALL CHAIN TENSIONER SLIPPER (for Bank 1)

    Tech Tips

    If you cannot install the chain tensioner slipper due to the tension of the chain, use the hexagonal portion of the camshaft to loosen the chain and install the chain tensioner.

  6. INSTALL NO. 1 CHAIN TENSIONER ASSEMBLY (for Bank 1)


    1. A01GHN8E01

      Move the stopper plate upward to release the lock, and push the plunger deep into the tensioner.

    2. Move the stopper plate downward to set the lock, and insert a hexagon wrench into the hole of the stopper plate.

    3. A01GI31

      Install a new gasket and chain tensioner with the 2 bolts.

      Torque:
      10 N*m  { 102 kgf*cm, 7 ft.*lbf }

  7. INSTALL NO. 1 CHAIN VIBRATION DAMPER (for Bank 1)


    1. A01GJ1V

      Install the vibration damper with the 2 bolts.

      Torque:
      21 N*m  { 214 kgf*cm, 15 ft.*lbf }

    2. Remove the hexagon wrench from the No. 1 chain tensioner.

  8. TIGHTEN CAMSHAFT TIMING GEAR ASSEMBLY


    1. for Bank 1:


      1. A01GKODE01

        Using a wrench, hold the hexagonal portion of the No. 3 camshaft.

      2. Using a 12 mm socket hexagon wrench, tighten the camshaft timing gear assembly with a new bolt.

        Torque:
        79 N*m  { 806 kgf*cm, 58 ft.*lbf }
      3. A01GIZ1E01

        Using a wrench to hold the hexagonal portion of the No. 4 camshaft, tighten the camshaft timing exhaust gear assembly with the bolt.

        Torque:
        100 N*m  { 1020 kgf*cm, 74 ft.*lbf }

    2. for Bank 2:


      1. A01GJ77E01

        Using a wrench, hold the hexagonal portion of the No. 1 camshaft.

      2. Using a 12 mm socket hexagon wrench, tighten the camshaft timing gear assembly with a new bolt.

        Torque:
        79 N*m  { 806 kgf*cm, 58 ft.*lbf }
      3. A01GL6YE01

        Using a wrench to hold the hexagonal portion of the No. 2 camshaft, tighten the camshaft timing exhaust gear assembly with the bolt.

        Torque:
        100 N*m  { 1020 kgf*cm, 74 ft.*lbf }

  9. CHECK NO. 1 CYLINDER TO TDC / COMPRESSION


    1. Temporarily install the crankshaft pulley bolt.

    2. Rotate the crankshaft clockwise, and check that the timing marks on the crankshaft timing gear and camshaft timing gears are as shown in the illustration.

    3. Remove the crankshaft pulley bolt.

      A01GLLGE01

  10. INSTALL TIMING CHAIN COVER SUB-ASSEMBLY

    Click here