CAMSHAFT REMOVAL

PROCEDURE

  1. REMOVE CHAIN SUB-ASSEMBLY

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  2. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY

    1. Inspect the lock of the camshaft timing gear assembly.

    2. A206198C01

      *1

      Adhesive Tape

      *a

      Prick a Hole

      *b

      Adhesive Tape Sealing Area

      After cleaning and degreasing the VVT oil hole on the intake side of the No. 1 camshaft bearing cap, completely seal the oil hole with adhesive tape or equivalent as shown in the illustration to prevent air from leaking.

      Note:

      Be sure to cover the oil hole completely because air leaks due to insufficient sealing will prevent the lock pin from being released.

    3. Prick a hole in the tape covering the oil hole as shown in the illustration. (Procedure A)

    4. A173467

      Apply compressed air at approximately 150 kPa (1.5 kgf/cm2, 22 psi) to the hole pricked in procedure A to release the lock pin.

      Note:

      • If air leaks out, reattach the adhesive tape.

      • Cover the oil hole with a piece of cloth when applying compressed air to prevent oil from spraying.

    5. Forcibly turn the camshaft timing gear in the advance direction (counterclockwise).

      Tip:

      Depending on the air pressure applied, the camshaft timing gear may turn in the advance direction without assistance.

    6. A173479

      Turn the camshaft timing gear assembly within its movable range (26.5 to 28.5°) 2 or 3 times without turning it to the most retarded position. Make sure that the camshaft timing gear assembly turns smoothly.

    7. Remove the adhesive tape from the No. 1 camshaft bearing cap.

  3. INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY

    1. Check the lock of the camshaft timing exhaust gear assembly.

    2. A206199C01

      *1

      Adhesive Tape

      *a

      Prick a Hole

      *b

      Adhesive Tape Sealing Area

      After cleaning and degreasing the VVT oil hole on the exhaust side of the No. 1 camshaft bearing cap, completely seal the oil hole with adhesive tape or equivalent as shown in the illustration to prevent air from leaking.

      Note:

      Be sure to cover the oil hole completely because air leaks due to insufficient sealing will prevent the lock pin from being released.

    3. Prick a hole in the tape covering the oil hole as shown in the illustration. (Procedure A)

    4. A173468

      Apply compressed air at approximately 200 kPa (2.0 kgf/cm2, 28 psi) to the hole pricked in procedure A to release the lock pin.

      Note:

      • If air leaks out, reattach the adhesive tape.

      • Cover the oil hole with a piece of cloth when applying compressed air to prevent oil from spraying.

    5. Using a screwdriver with its tip wrapped with tape, forcibly turn the camshaft timing exhaust gear assembly in the retard direction (clockwise).

      Note:

      • Be sure to keep the camshaft timing exhaust gear assembly in the retard direction using a screwdriver. If the gear is released, it will return to the most advanced position automatically due to the force from the spring.

      • Do not damage the camshaft timing exhaust gear assembly.

    6. A173480

      Using a screwdriver with its tip wrapped with tape, turn the camshaft timing exhaust gear assembly within its movable range (19 to 21°) 2 or 3 times without turning it to the most advanced position. Make sure that the camshaft timing exhaust gear assembly turns smoothly.

    7. Remove the adhesive tape from the No. 1 camshaft bearing cap.

  4. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY

    1. A165296

      Remove the flange bolt while holding the hexagonal portion of the camshaft, and then remove the camshaft timing gear assembly.

      A162976C07

      *1

      Flange Bolt

      *a

      Do Not Remove
      Note:

      • Before removing the camshaft timing gear assembly, make sure that the lock pin has been released.

      • Be sure not to remove the other 4 bolts.

      • Keep the camshaft timing gear assembly horizontal while removing it from the camshaft.

  5. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY

    1. A165297

      Remove the flange bolt while holding the hexagonal portion of the camshaft, and then remove the camshaft timing exhaust gear assembly.

      A162977C03

      *1

      Flange Bolt

      *a

      Do Not Remove
      Note:

      • Be sure not to remove the other 4 bolts.

      • Keep the camshaft timing exhaust gear assembly horizontal while removing it from the camshaft.

  6. REMOVE VALVE ROCKER ARM LOST MOTION DAMPER SUB-ASSEMBLY

    1. A199175C04

      *1

      Shim

      Remove the 2 bolts and valve rocker arm lost motion damper sub-assembly.

      Note:

      • Make sure the camshaft housing sub-assembly is installed to the cylinder head sub-assembly when removing or installing a valve rocker arm lost motion damper sub-assembly.

      • If a valve rocker arm lost motion damper sub-assembly is removed, do not remove the camshaft housing sub-assembly.

      • Do not remove the shims. If a shim is removed, replace the camshaft housing sub-assembly as engine malfunctions may result from irregular valve timing.

  7. INSTALL VALVE ROCKER ARM LOST MOTION DAMPER SUB-ASSEMBLY

    1. A199176C04

      *1

      Hole for Engine Oil

      Install the valve rocker arm lost motion damper sub-assembly with the 2 bolts. Uniformly tighten the bolts.

      10 N*m

      102 kgf*cm

      7 ft.*lbf

    2. Add engine oil into the hole for engine oil.

  8. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY

    Note:

    • The camshaft housing sub-assembly is replaced with an assembled unit that includes the camshaft housing sub-assembly, camshafts, camshaft bearing caps, valve rocker shaft and valve rocker arm lost motion damper sub-assembly. If disassembled, replace the camshaft housing sub-assembly.

    • The camshafts cannot be replaced by themselves.

      A206559C01

      *1

      Camshaft Housing Sub-assembly

      *2

      Continuously Variable Valve Lift Controller Assembly

      *a

      Set of parts that are replaced together

      -

      -
    1. A270926N01

      Uniformly loosen and remove the 17 bearing cap bolts in the sequence shown in the illustration.

      Note:

      Uniformly loosen the bearing cap bolts while keeping the camshaft housing sub-assembly level.

    2. A165298C04

      *1

      Protective Tape

      Remove the camshaft housing sub-assembly by prying between the cylinder head sub-assembly and camshaft housing sub-assembly with a screwdriver.

      Note:

      Be careful not to damage the contact surfaces of the cylinder head sub-assembly and camshaft housing sub-assembly.

      Tip:

      Tape the screwdriver tip before use.

  9. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY

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  10. REMOVE VALVE LASH ADJUSTER ASSEMBLY

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  11. INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY

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  12. INSPECT VALVE LASH ADJUSTER ASSEMBLY

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