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Home >> Lexus >> 2014 >> IS 350 Base, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical System (2GR-FSE) - Service Information (1 Of 2) >> Camshaft >> Removal [04/2013 - 10/2017] >> Procedure

Removal [04/2013 - 10/2017]: Procedure

  1. REMOVE BATTERY 

    Refer to REMOVAL [04/2013 - 09/2020]

  2. REMOVE FUEL PUMP ASSEMBLY 

    Refer to REMOVAL [04/2013 - 10/2017]

  3. REMOVE GENERATOR ASSEMBLY 

    Refer to REMOVAL [04/2013 - 10/2017]

  4. REMOVE NO. 1 ENGINE COVER 

    Refer to PROCEDURE - Step 6

  5. REMOVE INJECTOR DRIVER 

    Refer to PROCEDURE - Step 7

  6. REMOVE IGNITION COIL ASSEMBLY 

    Refer to PROCEDURE - Step 4

  7. REMOVE SPARK PLUG 

    Refer to PROCEDURE - Step 5

  8. REMOVE AIR CLEANER CASE SUB-ASSEMBLY 

    See step  24[04/2013 - 08/2015], or see step  24[08/2015 - 10/2016], or see step  23 [10/2016 - 10/2017]

  9. REMOVE NO. 2 ENGINE OIL LEVEL DIPSTICK GUIDE 

    Refer to PROCEDURE - Step 11 [04/2013 - 10/2016] , or refer to PROCEDURE - Step 10 [10/2016 - 10/2017]

  10. REMOVE NO. 1 OIL PIPE 

    Refer to PROCEDURE - Step 21

  11. REMOVE NO. 2 OIL PIPE 

    Refer to PROCEDURE - Step 22

  12. DISCONNECT FUEL TUBE SUB-ASSEMBLY 

    See step  39[04/2013 - 08/2015], or see step  37[08/2015 - 10/2016], or see step  36[10/2016 - 10/2017]

  13. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY LH 
    1. Detach the clamps and disconnect the connectors to disconnect the wire harness from the cylinder head cover sub-assembly LH.
    2. Remove the 12 bolts, cylinder head cover seal washer, cylinder head cover sub-assembly LH and cylinder head cover gasket LH.
      GTY459151Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Be careful of baffle plate
      NOTE:

      The baffle plate is located on the back of the portion shown in the illustration. Do not damage the baffle plate when removing the cylinder head cover sub-assembly LH.

    3. Remove the 3 gaskets.
      GTY458886Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY 
    1. Detach the clamps and disconnect the connectors to disconnect the wire harness from the cylinder head cover sub-assembly.
    2. Remove the 14 bolts, 2 cylinder head cover seal washer, cylinder head cover sub-assembly and cylinder head cover gasket.
      GTY102536Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 3 gaskets.
      GTY458884Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE SPARK PLUG TUBE GASKET 

    Refer to PROCEDURE - Step 34

  16. REMOVE TIMING CHAIN COVER PLATE 
    1. Remove the 4 bolts, timing chain cover plate and gasket.
      GTY101397Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. SET NO. 1 CYLINDER TO TDC / COMPRESSION 
    1. Turn the crankshaft pulley clockwise and align the notch with the "0" timing mark of the timing chain or belt cover sub-assembly.
      GTY463216Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Notch
    2. Check that the timing marks of the camshaft timing gears are aligned with the timing marks of the camshaft bearing caps as shown in the illustration.
      GTY458358Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Timing Mark
      *2 Paint Mark
      *a For Bank 2
      *b For Bank 1

      HINT: 

      If the marks are not aligned, turn the crankshaft pulley clockwise again to align the marks.

    3. Place paint marks on the chain sub-assembly in alignment with the timing marks on each camshaft timing gear assembly and camshaft bearing cap.

      HINT: 

      Be sure to place the paint marks on 2 links of the chain sub-assembly and on the sprockets of the camshaft timing gears at the locations of the timing marks of the camshaft timing gears.

  18. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY 
    1. Turn the crankshaft approximately 30° counterclockwise so that there is some slack in the chain sub-assembly.

      HINT: 

      This prevents the valves and pistons from interfering with each other.

      GTY466348Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 0°
      *b 30°
    2. Align the hole in the stopper plate of the No. 1 chain tensioner assembly with the hole in the No. 1 chain tensioner body as shown in the illustration, and then insert a pin with a diameter of 1.27 mm (0.0500 in.) into the hole.
      GTY460212Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Hole in the Stopper Plate
      *2 Hole in the No. 1 Chain Tensioner Assembly
      *3 Pin
    3. Turn the crankshaft clockwise and align the notch with the "0" timing mark of the timing chain or belt cover sub-assembly.
      GTY463216Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Notch
    4. Remove the 2 bolts and No. 1 timing chain tensioner assembly.
      GTY459303Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not drop the No. 1 chain tensioner assembly or bolts into the timing chain or belt cover sub-assembly.

  19. SEPARATE CHAIN SUB-ASSEMBLY (for Bank 1) 
    1. Turn the crankshaft clockwise until it is in the position shown in the illustration so that there is some slack in the chain sub-assembly between the banks.
      GTY470094Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 30°
      WARNING:

      As the camshafts turn suddenly, do not touch the camshafts or camshaft timing gears.

      NOTE:

      When turning the crankshaft, engine oil may spray out of the oil holes.

    2. Turn the crankshaft clockwise until it is in the position shown in the illustration so that the chain sub-assembly can be removed easily.
      GTY469395Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 5 to 10°
      NOTE:

      When turning the crankshaft, engine oil may spray out of the oil holes.

    3. Remove the chain sub-assembly from the sprocket of the camshaft timing gear assembly and set it on the camshaft timing gear assembly.
      GTY470339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WARNING:

      As the camshaft may turn suddenly and pinch your fingers when the chain sub-assembly is removed, pinch the chain sub-assembly and lift it upward to remove it from the sprocket.

  20. REMOVE CAMSHAFT BEARING CAP (for Bank 1) 
    1. Remove the bolts and camshaft bearing caps in the order shown in the illustration.

      Immediately after removing the camshaft bearing caps, install service bolts and washers in the order shown in the illustration.

      Fig 1: Camshaft Bearing Cap (for Bank 1) Loosening Sequence
      GTY464736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Service Bolt and Washers (used to temporarily secure the camshaft housing sub-assembly RH)
      *a Part to be removed
      *b Install the service bolts and washers to temporarily secure the camshaft housing sub-assembly RH

      Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) 

      NOTE:
      • Do not install the camshaft bearing caps when installing the service bolts and washers.
      • Be sure to follow the numerical order when performing this procedure.
      • Do not allow the service bolts and washers to contact the camshaft.
      • Do not drop the service bolts and washers into the cylinder head sub-assembly.

      HINT: 

      • Arrange the removed parts so that they can be reinstalled in their original locations.
      • Part number for the service bolts used to temporarily secure the camshaft housing sub-assembly RH: 91551-G0845 (9 bolts)
      • Part number for the service washers used to temporarily secure the camshaft housing sub-assembly RH: 90201-12028 (18 washers)
  21. REMOVE NO. 2 CAMSHAFT 
    1. Remove the bolt of the No. 2 chain tensioner assembly.
      GTY101215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the No. 2 chain tensioner assembly while lifting up the No. 2 camshaft.
      GTY465991Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. While lifting up the No. 2 camshaft, pass it through the No. 2 chain sub-assembly and pull it out towards the front of the vehicle to remove it.
      GTY103407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. REMOVE CAMSHAFT 
    1. Lift up the rear of the camshaft so that it is at an angle.
    2. Remove the chain sub-assembly from the camshaft timing gear assembly and pull out the camshaft and No. 2 chain sub-assembly towards the rear of the vehicle to remove them.
      GTY103409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not drop the chain sub-assembly into the gap between the engine and timing chain or belt cover sub-assembly.

    3. Suspend the chain sub-assembly with a string or equivalent.
      GTY101257Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. SEPARATE CHAIN SUB-ASSEMBLY (for Bank 2) 
    1. Turn the crankshaft counterclockwise and align the notch with the "0" timing mark of the timing chain or belt cover sub-assembly.
      GTY463216Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Notch
    2. Remove the chain sub-assembly from the sprocket of the camshaft timing gear assembly and set it on the camshaft timing gear assembly.
      GTY463533Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WARNING:

      As the camshaft may turn suddenly and pinch your fingers when the chain sub-assembly is removed, pinch the chain sub-assembly and lift it upward to remove it from the sprocket.

  24. REMOVE CAMSHAFT BEARING CAP (for Bank 2) 
    1. Remove the bolts and camshaft bearing caps in the order shown in the illustration.

      Immediately after removing the camshaft bearing caps, install service bolts and washers in the order shown in the illustration.

      Fig 2: Camshaft Bearing Cap (for Bank 2) Loosening Sequence
      GTY461884Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Service Bolt and Washers (used to temporarily secure the camshaft housing sub-assembly LH)
      *a Part to be removed
      *b Install the service bolts and washers to temporarily secure the camshaft housing sub-assembly LH

      Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) 

      NOTE:
      • Do not install the camshaft bearing caps when installing the service bolts and washers.
      • Be sure to follow the numerical order when performing this procedure.
      • Do not allow the service bolts and washers to contact the camshaft.
      • Do not drop the service bolts and washers into the cylinder head sub-assembly.

      HINT: 

      • Arrange the removed parts so that they can be reinstalled in their original locations.
      • Part number for the service bolts used to temporarily secure the camshaft housing sub-assembly LH: 91551-G0845 (8 bolts)
      • Part number for the service washers used to temporarily secure the camshaft housing sub-assembly LH: 90201-12028 (16 washers)
  25. REMOVE NO. 4 CAMSHAFT SUB-ASSEMBLY 
    1. Remove the bolt of the No. 3 chain tensioner assembly.
      GTY103956Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the No. 3 chain tensioner assembly while lifting up the No. 4 camshaft sub-assembly.
      GTY465989Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. While lifting up the No. 4 camshaft sub-assembly, pass it through the No. 2 chain sub-assembly and pull it out towards the front of the vehicle to remove it.
      GTY103405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. REMOVE NO. 3 CAMSHAFT SUB-ASSEMBLY 
    1. Lift up the rear of the No. 3 camshaft sub-assembly so that it is at an angle.
    2. Remove the chain sub-assembly from the camshaft timing gear assembly and pull out the No. 3 camshaft sub-assembly and No. 2 chain sub-assembly towards the rear of the vehicle to remove them.
      GTY103410Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not drop the chain sub-assembly into the gap between the engine and timing chain or belt cover sub-assembly.

    3. Suspend the chain sub-assembly with a string or equivalent.
      GTY103411Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY 
    1. Check the lock of the camshaft timing gear assembly.
      1. Clamp the camshaft in a vise between aluminum plates, and confirm that the camshaft timing gear assembly is locked.
        NOTE:

        Be careful not to damage the camshaft.

    2. Release the lock pin.
      GTY462384Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Advanced Side Path
      *2 Retard Side Path
      *a Open
      *b Close
      Rubber Piece
      Vinyl Tape
      1. Cover the 4 oil paths of the cam journal with vinyl tape as shown in the illustration.

        HINT: 

        Plug 2 of the 4 paths with rubber pieces as shown in the illustration.

      2. Break through the tape on the advance side path and the retard side path on the opposite side of the hole of the advance side path, as shown in the illustration.
      3. Apply approximately 200 kPa (2.0 kgf/cm2 , 28 psi) of air pressure to the 2 opened paths.
        GTY460541Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *1 Advanced Side Path
        *2 Retard Side Path
        WARNING:

        Cover the paths with a piece of cloth when applying pressure to prevent oil from spraying.

      4. Check that the camshaft timing gear assembly rotates in the advance direction when reducing the air pressure applied to the retard side path.
        GTY461181Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *1 Advance Side Path
        *2 Retard Side Path
        *a Hold Pressure
        *b Decompress

        HINT: 

        The lock pin is released and the camshaft timing gear assembly turns in the advance direction.

      5. When the camshaft timing gear assembly reaches the most advanced position, release the air pressure first from the retard side path and next from the advance side path.
        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. Turn the camshaft timing gear assembly within its movable range (21°) 2 or 3 times, but do not turn it to the most retarded position. Make sure that the camshaft timing gear assembly turns smoothly.
        NOTE:

        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 assembly locks at the most retarded position.
  28. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY 
    1. Remove the flange bolt and camshaft timing gear assembly.
      GTY456548Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Flange Bolt
      *2 Straight Pin
      *a Do not remove
      NOTE:
      • Do not remove the other 3 bolts.
      • If planning to reuse the camshaft timing gear assembly, be sure to release the straight pin lock before installing the camshaft timing gear assembly.
  29. INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY 
    1. Check the lock of the camshaft timing exhaust gear assembly.
      1. Clamp the camshaft in a vise, and confirm that the camshaft timing exhaust gear assembly is locked.
    2. Release the lock pin.
      GTY465236Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Advanced Side Path
      *2 Retard Side Path
      *a Open
      *b Close
      Rubber Piece
      Vinyl Tape
      1. Cover the 4 oil paths of the cam journal with vinyl tape as shown in the illustration.

        HINT: 

        Plug 2 of the 4 paths with rubber pieces as shown in the illustration.

      2. Break through the tape on the advance side path and the retard side path on the opposite side of the hole of the advance side path, as shown in the illustration.
      3. Apply approximately 200 kPa (2.0 kgf/cm2 , 28 psi) of air pressure to the 2 opened paths (the advance side path and the retard side path).
        GTY467820Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *1 Advanced Side Path
        *2 Retard Side Path
        WARNING:

        Cover the paths with a piece of cloth when applying pressure to prevent oil from spraying.

      4. Make sure that the camshaft timing exhaust gear assembly rotates in the retard direction when reducing the air pressure applied to the advance side path.
        GTY464302Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *1 Advance Side Path
        *2 Retard Side Path
        *a Hold pressure
        *b Decompress

        HINT: 

        The lock pin is released and the camshaft timing exhaust gear assembly turns in the retard direction.

      5. When the camshaft timing exhaust gear assembly moves to the most retarded position, release the air pressure first from the advance side path, and then release the air pressure from the retard side path.
        NOTE:

        Be sure to release the air pressure from the advance side path first.

        If the air pressure of the retard side path is released first, the camshaft timing exhaust gear assembly may abruptly shift in the advance direction and break the lock pin or other parts.

    3. Check for smooth rotation.
      1. Turn the camshaft timing exhaust gear assembly within its movable range (18.5°) 2 or 3 times, but do not turn it to the most advanced position.

        Make sure that the camshaft timing exhaust gear assembly turns smoothly.

        NOTE:

        When the air pressure is released from the advance side path and then from the retard side path, the gear assembly automatically returns to the most advanced position due to the advance assist spring operation and locks. Gradually release the air pressure from the retard side path before performing the smooth rotation check.

    4. Check the lock at the most advanced position.
      1. Make sure that the camshaft timing exhaust gear assembly locks at the most advanced position.
  30. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY 
    1. Remove the flange bolt and camshaft timing exhaust gear assembly.
      GTY468127Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Flange Bolt
      *2 Straight Pin
      *a Do not remove
      NOTE:
      • Be sure not to remove the other 4 bolts.
      • If planning to reuse the camshaft timing exhaust gear assembly, be sure to release the straight pin lock before installing the camshaft timing exhaust gear assembly.
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