CAMSHAFT REMOVAL


  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

    Note


    • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work Click here.

    • When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.

  2. REMOVE FRONT BUMPER COVER LOWER


    1. Remove the clip, 5 bolts and front bumper cover lower.

  3. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY


    1. A01DQWQ

      Remove the 4 bolts.

    2. Unhook the engine under cover from the vehicle body as shown in the illustration.

  4. REMOVE UPPER RADIATOR SUPPORT SEAL


    1. Remove the 13 clips and upper radiator support seal.

  5. DRAIN ENGINE OIL


    1. Remove the oil filler cap.

    2. Remove the oil drain plug and gasket, and drain the oil into a container.

  6. REMOVE AIR CLEANER CAP SUB-ASSEMBLY


    1. A01DMVV

      Detach the 3 clamps and disconnect the mass air flow meter connector.

    2. Remove the bolt, detach the clamp and disconnect the ground wire.

    3. A01DQ1U

      Detach the 4 clamps.

    4. Loosen the hose clamp and remove the air cleaner cap.

  7. REMOVE INTAKE AIR CONNECTOR


    1. A01DRXO

      w/ Manifold absolute pressure sensor:


      1. Disconnect the air pressure sensor connector.

      2. Detach the 2 clamps.

      3. Disconnect the vacuum hose.

    2. A01DN0Y

      Disconnect the No. 2 ventilation hose.

    3. Detach the wire harness clamp.

    4. A01DTV4E01

      Disconnect the vacuum hose.

    5. A01DNAZ

      Loosen the hose clamp.

    6. Remove the 3 bolts and intake air connector.

  8. REMOVE RADIATOR RESERVOIR


    1. A01DSOG

      Disconnect the reservoir hose from the radiator.

    2. Remove the 3 bolts and radiator reservoir.

  9. REMOVE FAN SHROUD


    1. A01DRXM

      Detach the claw to open the flexible hose clamp.

    2. A01DQMO

      Loosen the 4 nuts holding the fluid coupling fan.

    3. Remove the fan and generator V-belt Click here.

    4. A01DRW2

      Remove the 2 bolts holding the fan shroud.

    5. Remove the 4 nuts of the fluid coupling fan, and then remove the shroud together with the coupling fan.

      Note

      Be careful not to damage the radiator core.

  10. REMOVE IGNITION COIL ASSEMBLY


    1. A01DQQ0

      Disconnect the 4 ignition coil connectors.

    2. A01DRGN

      Remove the 4 bolts and 4 ignition coils.

  11. REMOVE CAMSHAFT POSITION SENSOR

    A01DU16E01

    1. Disconnect the camshaft position sensor connector.

    2. Remove the bolt and camshaft position sensor.

  12. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY


    1. A01DR40

      Remove the 19 bolts, 2 nuts, head cover and 2 gaskets.

  13. REMOVE TIMING CHAIN GUIDE


    1. A01DUWO

      Remove the 2 bolts, chain guide and O-ring.

  14. REMOVE CAMSHAFT TIMING SPROCKET


    1. A01DP6RE01

      Turn the crankshaft pulley, and align its groove with the "0" timing mark of the timing chain cover.

    2. Check that the timing marks of the camshaft timing gear and sprocket are aligned with the timing marks of the No. 1 bearing cap as shown in the illustration.

      Text in Illustration
      *1 Timing Mark
      *2 Groove

      Tech Tips

      If the timing marks do not align, rotate the crankshaft clockwise again and align the timing marks.

    3. A01DOEDE07
      Text in Illustration
      *1 Paint Mark
      *2 Timing Mark

      Place paint marks on the timing chain, camshaft timing gear and sprocket.

    4. A01DPB9E06
      Text in Illustration
      *a Hold
      *b Loosen

      Hold the camshaft with a wrench and loosen the sprocket bolt.

      Note

      Be careful not to damage the oil delivery pipe.

    5. A01DNWV

      Using a 10 mm socket hexagon wrench, remove the straight screw plug.

    6. A01DTC1E06
      Text in Illustration
      *1 Stopper Plate

      Using a screwdriver, access the tensioner stopper plate through the chain tensioner service hole. Move the stopper plate upward to release the lock. Then hold the plate in that position as shown in the illustration.

      Tech Tips

      If the lock of the stopper plate is difficult to release, slightly rotate the hexagonal part of the camshaft to the left and right.

    7. A01DUOIE05
      Text in Illustration
      *1 Plunger

      With the lock of the stopper plate released, slightly rotate the camshaft clockwise and keep it in that position.

      Tech Tips

      Rotating the camshaft clockwise will cause pressure to be applied to the tensioner plunger.

      Note

      Be careful not to damage the oil delivery pipe.

    8. A01DSGPE03
      Text in Illustration
      *1 Hexagon Wrench

      Remove the screwdriver from the chain tensioner service hole. Move the stopper plate to the position shown in the illustration. Then insert a hexagon wrench into the hole.

      Tech Tips


      • If the wrench cannot fit into the hole, slightly rotate the camshaft counterclockwise and then clockwise. Then insert the wrench.

      • To prevent the wrench from falling out, use tape to fix the wrench in place.

    9. A01DOQWE01

      Remove the camshaft timing sprocket from the No. 2 camshaft.

  15. REMOVE CAMSHAFT


    1. A01DM7RE01

      Uniformly loosen the 21 bearing cap bolts in several passes in the sequence shown in the illustration.

    2. Remove the 9 bearing caps, oil delivery pipe, O-ring and No. 2 camshaft.

      Note


      • Uniformly loosen the bolts while keeping the camshaft level.

      • Do not pry the camshaft with a tool or apply excessive force to it.

    3. A01DSHPE01

      Remove the camshaft while holding the timing chain.

    4. A01DOPBE01

      Secure the timing chain with a string as shown in the illustration.

      Note

      Be careful not to drop anything inside the timing chain cover.

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


    1. A01DSZE

      Remove the 16 valve rocker arms from the cylinder head.

      Tech Tips

      Arrange the removed parts in the correct order.

  17. REMOVE VALVE LASH ADJUSTER ASSEMBLY


    1. A01DQDC

      Remove the 16 valve lash adjusters from the cylinder head.

      Tech Tips

      Arrange the removed parts in the correct order.

  18. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY


    1. A01DS1WE03
      Text in Illustration
      *a Do Not Remove

      Remove the flange bolt and camshaft timing gear.

      Note


      • Be sure not to remove the other 3 bolts.

      • If planning to reuse the gear, be sure to release the straight pin lock before installing the gear.

  19. INSPECT VALVE LASH ADJUSTER ASSEMBLY

    Note


    • Keep the lash adjuster free from dirt and foreign objects.

    • Only use clean engine oil.


    1. A01DQB4E03
      Text in Illustration
      *1 Taper Part
      *2 Plunger
      *3 Low Pressure Chamber
      *4 Check Ball
      *5 High Pressure Chamber
      *a CORRECT
      *b INCORRECT

      Place the lash adjuster into a container full of new engine oil.

    2. Insert the tip of SST into the lash adjuster plunger and use the tip to press down on the check ball inside the plunger.

      SST
      09276-75010

    3. Squeeze SST and the lash adjuster together to move the plunger up and down 5 to 6 times.

    4. Check the movement of the plunger and bleed air.

      OK
      Plunger moves up and down.

      Note

      When bleeding high-pressure air from the compression chamber, make sure that the tip of SST is actually pressing the check ball as shown in the illustration. If the check ball is not pressed, air will not bleed.

    5. After bleeding the air, remove SST. Then try to quickly and firmly press the plunger with your fingers.

      OK
      Plunger can be pressed 3 times.

      If the plunger can still be compressed after pressing it 3 times, replace the valve lash adjuster with a new one.

  20. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY


    1. A01DO1CE14
      Text in Illustration
      *1 Retard Side Path
      *2 Advance Side Path
      *a Open
      *b Close
      A01DPL5 Rubber Piece
      A01DOXP Vinyl Tape

      Check the lock of the camshaft timing gear.


      1. Mount the camshaft in a vise and confirm that the camshaft timing gear is locked.

        Note

        Do not damage the camshaft.

    2. Release the lock pin.


      1. Cover the 4 oil paths of the cam journal with vinyl tape as shown in the illustration.

        Tech Tips

        2 advance side paths are provided in the groove of the camshaft. Plug one of the paths with a rubber piece.

      2. Break through the tape over the advance side path, and then break through the tape over the retard side path on the opposite side of the hole over the advance side path as shown in the illustration.

      3. A01DQBXE14
        Text in Illustration
        *1 Retard Side Path
        *2 Advance Side Path

        Apply compressed air at approximately 200 kPa (2.0 kgf/cm2, 28 psi) to the two paths accessible through the holes in the tape.

        CAUTION:

        Some oil splashing will occur. Cover the paths with a piece of cloth.

      4. A01DQMBE12
        Text in Illustration
        *1 Retard Side Path
        *2 Advance Side Path
        *a Decompress
        *b Hold Pressure

        Check that the camshaft timing gear revolves in the advance direction when reducing the air pressure applied to the retard side path.

        OK
        Gear rotates in the advance direction.

        Tech Tips

        This operation releases the lock pin which holds the timing gear in the most retarded position.

      5. When the camshaft timing gear reaches the most advanced position, release the air pressure from the retard side path and advance side path in that order.

        Note

        Do not release the air pressure from the advance side path first. The gear may abruptly shift in the retard direction and break the lock pin.

    3. Check for smooth rotation.


      1. Rotate the camshaft timing gear within its movable range several times, but do not turn it to the most retarded position. Check that the gear rotates smoothly.

        CAUTION:

        Do not use air pressure to perform the smooth operation check.

    4. Check the lock in the most retarded position.


      1. Confirm that the camshaft timing gear becomes locked at the most retarded position.