CYLINDER HEAD GASKET REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the cylinder head gasket removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replacement Part or Procedure Necessary Procedure Effect/Inoperative when not Performed Link
Disconnect cable from negative battery terminal Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes) Stop and start system

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Memorize steering angle neutral point LKA/LDA system

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Parking support brake system*1
Pre-collision system
Adaptive high beam system

    Lighting system (EXT)

  • cornering lights
Variable gear ratio steering system

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Parking assist monitor system

Click here

Panoramic view monitor system

Click here

Initialize rear door sunshade system Rear door sunshade system

Click here

Initialize power trunk lid system Power trunk lid system

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  • Throttle body with motor assembly

  • Cleaning the deposits from the throttle body with motor assembly

  • Cylinder head sub-assembly

  • Camshaft (for intake or exhaust camshaft)

  • Camshaft timing gear assembly

  • Camshaft timing exhaust gear assembly

  • Fuel injector assembly (for port injection)

  • Fuel injector assembly (for direct injection)

  • Fuel pump assembly (for high pressure side)

  • Fuel pressure sensor (for low pressure side)

  • Fuel pressure sensor (for high pressure side)

  • Engine coolant temperature sensor

  • Spark plug

  • Ignition coil assembly

  • Air leaks from intake system

  • Gas leaks from exhaust system

 Inspection after repair

  • Poor idle, etc.

  • Engine start function, etc.

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Engine assembly Inspection after repair

  • Reset memory

  • Perform road test to allow ECM to learn

  • Large shift shock

  • Engine overruns

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Starter assembly

Note

When the starter assembly is replaced, "ST NO. 1 relay" and "ST NO. 2 relay" must be also replaced.

 Clear number of starter operations Stop and start system

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Automatic transmission assembly

  • Set transmission compensation code (step 1)*2

  • Perform road test to allow ECM to learn

  • Large shift shock

  • Engine overruns

for Initialization:

Click here

for Registration:

Click here

Automatic transmission fluid ATF thermal degradation estimate reset The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly.

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Wheel alignment adjustment

  • Clear zero point calibration data and system information.

  • Perform acceleration sensor (yaw rate sensor) zero point calibration and store system information.

  • DTCs are stored

  • ABS warning light illuminates

  • Brake system warning light (red indicator) illuminates

  • Slip indicator light illuminates

  • VSC disabled or malfunctions

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Front bumper assembly (Including removal and installation)

  • Ultrasonic sensor detection angle

  • Ultrasonic sensor detection angle registration

 Parking support brake system

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Front television camera view adjustment Panoramic view monitor system

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Suspension, tires, etc.

  • Ultrasonic sensor detection angle

  • Ultrasonic sensor detection angle registration

 Parking support brake system

Click here


  • Parking assist ECU initialization

  • Adjust steering angle

  • Rear television camera view adjustment (for Rear camera detection system)

 Panoramic view monitor system

Click here

Rear television camera assembly optical axis (Back camera position setting) Parking assist monitor system

Click here

Parts between the steering wheel and tires have been removed/installed, replaced or adjusted Perform actuator angle neutral point calibration and initialization

  • Variable gear ratio steering system

  • Steering wheel off-center

  • DTCs are output

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*1: When performing learning using the GTS.
Click here Click here
*2: Set the transmission compensation code for the new automatic transmission.

PROCEDURE


  1. REMOVE TIMING CHAIN COVER ASSEMBLY

    Click here

  2. SET NO. 1 CYLINDER TO TDC/COMPRESSION

    Click here

  3. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY

    Click here

  4. REMOVE CHAIN TENSIONER SLIPPER

    Click here

  5. REMOVE CHAIN SUB-ASSEMBLY

    Click here

  6. REMOVE CAMSHAFT TIMING GEARS AND NO. 2 CHAIN SUB-ASSEMBLY (for Bank 1)


    1. B006DZ6C01
      *a Pin
      *b Plunger
      *c Push

      While raising the No. 2 chain tensioner assembly, insert a pin of 1.0 mm (0.0394 in.) diameter into the hole to hold the No. 2 chain tensioner assembly.

    2. B006CQ1C01
      *a Turn
      *b Hold

      Using a wrench to hold the hexagonal portion of each camshaft, loosen the camshaft timing gear bolt of the camshaft timing gear assembly.

      Note


      • Be careful not to damage the cylinder head sub-assembly with the wrench.

      • Do not loosen the other bolts. If any of the bolts is loosened, replace the camshaft timing gear assembly and/or the camshaft timing exhaust gear assembly with a new one.

    3. B006FODC01
      *a Turn
      *b Hold

      Using a wrench to hold the hexagonal portion of each camshaft, loosen the camshaft timing gear bolt of the camshaft timing exhaust gear assembly RH.

      Note


      • Be careful not to damage the cylinder head sub-assembly with the wrench.

      • Do not loosen the other bolts. If any of the bolts is loosened, replace the camshaft timing gear assembly and/or the camshaft timing exhaust gear assembly with a new one.

    4. Remove the 2 bolts and the camshaft timing gear assembly together with the No. 2 chain.

  7. REMOVE NO. 2 CHAIN TENSIONER ASSEMBLY


    1. B006G4W

      Remove the bolt and No. 2 chain tensioner assembly.

  8. REMOVE VACUUM PUMP ASSEMBLY

    Click here

  9. REMOVE CAMSHAFT BEARING CAP (for Bank 1)


    1. B006GAMC01
      *a Knock Pin
      *b IN
      *c EX

      Check that the camshafts are positioned as shown in the illustration.

    2. B006D83N01

      Uniformly loosen and remove the 9 bearing cap bolts in several steps and in the sequence shown in the illustration.

    3. B006CAON01

      Uniformly loosen and remove the 15 bearing cap bolts in several steps and in the sequence shown in the illustration.

      Note

      Uniformly loosen the bolts while keeping the camshaft level.

    4. B006CWE

      Remove the 2 oil control valve filters from the 2 camshaft bearing caps.

  10. REMOVE FUEL PUMP LIFTER HOUSING


    1. B0069RT

      Remove the fuel pump lifter housing.

  11. REMOVE CAMSHAFT


    1. Remove the camshaft from the camshaft housing sub-assembly.

  12. REMOVE NO. 2 CAMSHAFT


    1. Remove the No. 2 camshaft from the camshaft housing sub-assembly.

  13. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY RH


    1. B006EJ3C01
      *a Protective Tape

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

      Note

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

      Tech Tips

      Tape the screwdriver tip before use.

  14. REMOVE CAMSHAFT TIMING GEARS AND NO. 2 CHAIN (for Bank 2)


    1. B0069QDC01
      *a Pin
      *b Plunger
      *c Push

      While pushing down the No. 3 chain tensioner assembly, insert a pin of 1.0 mm (0.0394 in.) diameter into the hole to hold the No. 3 chain tensioner assembly.

    2. B0069W7C01
      *a Turn
      *b Hold

      Using a wrench to hold the hexagonal portion of each camshaft, loosen the camshaft timing gear bolt of the camshaft timing gear assembly.

      Note


      • Be careful not to damage the cylinder head sub-assembly with the wrench.

      • Do not loosen the other bolts. If any of the bolts is loosened, replace the camshaft timing gear assembly and/or the camshaft timing exhaust gear assembly with a new one.

    3. B006DJGC01
      *a Turn
      *b Hold

      Using a wrench to hold the hexagonal portion of each camshaft, loosen the camshaft timing gear bolt of the camshaft timing exhaust gear assembly LH.

      Note


      • Be careful not to damage the cylinder head sub-assembly with the wrench.

      • Do not loosen the other bolts. If any of the bolts is loosened, replace the camshaft timing gear assembly and/or the camshaft timing exhaust gear assembly with a new one.

    4. Remove the 2 bolts and the camshaft timing gear together with the No. 2 chain sub-assembly.

  15. REMOVE NO. 3 CHAIN TENSIONER ASSEMBLY


    1. B006CQ6

      Remove the bolt and No. 3 chain tensioner assembly.

  16. REMOVE CAMSHAFT BEARING CAP (for Bank 2)


    1. B006FR8C01
      *a Knock Pin
      *b IN
      *c EX

      Check that the camshafts are positioned as shown in the illustration.

    2. B006BBFN01

      Uniformly loosen and remove the 8 bearing cap bolts in several steps and in the sequence shown in the illustration.

    3. B006BJ9N01

      Uniformly loosen and remove the 13 bearing cap bolts in several steps and in the sequence shown in the illustration.

      Note

      Uniformly loosen the bolts while keeping the camshaft level.

    4. Remove the 5 camshaft bearing caps.

    5. B006FI9

      Remove the 2 oil control valve filters from the 2 camshaft bearing caps.

  17. REMOVE NO. 3 CAMSHAFT SUB-ASSEMBLY


    1. Remove the No. 3 camshaft sub-assembly from the camshaft housing sub-assembly LH.

  18. REMOVE NO. 4 CAMSHAFT SUB-ASSEMBLY


    1. Remove the No. 4 camshaft sub-assembly from the camshaft housing sub-assembly LH.

  19. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY LH


    1. B0069UDC01
      *a Protective Tape

      Remove the camshaft housing LH by prying between the cylinder head LH and camshaft housing LH with a screwdriver.

      Note

      Be careful not to damage the contact surfaces of the cylinder head and camshaft housing LH.

      Tech Tips

      Tape the screwdriver tip before use.

  20. REMOVE NO. 1 CHAIN VIBRATION DAMPER


    1. B006GTF

      Remove the 2 bolts and No. 1 chain vibration damper.

  21. REMOVE NO. 2 CHAIN VIBRATION DAMPER


    1. B006DNB

      Remove the 2 No. 2 chain vibration dampers.

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


    1. Remove the 24 No. 1 valve rocker arm sub-assemblies.

      Tech Tips

      Arrange the removed parts in the correct order.

  23. REMOVE VALVE LASH ADJUSTER ASSEMBLY


    1. Remove the 24 valve lash adjuster sub-assemblies from the cylinder head sub-assembly.

      Tech Tips

      Arrange the removed parts in the correct order.

  24. REMOVE VALVE STEM CAP


    1. Remove the 24 valve stem caps.

      Tech Tips

      Arrange the removed parts in the correct order.

  25. REMOVE REAR WATER BY-PASS JOINT

    Click here

  26. REMOVE NO. 2 FUEL PIPE SUB-ASSEMBLY

    Click here

  27. REMOVE FUEL DELIVERY WITH SENSOR PIPE ASSEMBLY LH

    Click here

  28. REMOVE FUEL DELIVERY PIPE RH

    Click here

  29. REMOVE FUEL INJECTOR ASSEMBLY (for Direct Injection)

    Click here

  30. REMOVE FUEL INJECTOR SEAL

    Click here

  31. REMOVE CYLINDER HEAD SUB-ASSEMBLY


    1. B006CQDN02

      Using a 10 mm bi-hexagon wrench, uniformly loosen the 8 bolts in the sequence shown in the illustration. Remove the 8 cylinder head set bolts and plate washers.

      Note


      • Be careful not to drop washers into the cylinder head sub-assembly.

      • Cylinder head warpage or cracking could result from removing bolts in an incorrect order.

      Tech Tips

      Be sure to keep separate the removed parts for each installation position.

    2. Remove the cylinder head sub-assembly.

  32. REMOVE CYLINDER HEAD GASKET


    1. Remove the cylinder head gasket from the cylinder block sub-assembly.

  33. REMOVE CYLINDER HEAD LH


    1. B006B74N01

      Uniformly loosen and remove the bolts in the sequence shown in the illustration.

    2. B006ACMN01

      Using a 10 mm bi-hexagon wrench, uniformly loosen the 8 bolts in the sequence shown in the illustration. Remove the 8 cylinder head set bolts and plate washers.

      Note


      • Be careful not to drop washers into the cylinder head.

      • Cylinder head warpage or cracking could result from removing bolts in an incorrect order.

      Tech Tips

      Be sure to keep separate the removed parts for each installation position.

    3. Remove the cylinder head LH.

  34. REMOVE NO. 2 CYLINDER HEAD GASKET


    1. Remove the No. 2 cylinder head gasket from the cylinder block sub-assembly.

  35. INSPECT CYLINDER HEAD SET BOLT


    1. B006A9CC01
      *a Measurement Point
      *b 100 mm

      Using a vernier caliper, measure the diameter of the threads at the measurement point.

      Standard Diameter
      10.85 to 11.00 mm (0.427 to 0.433 in.)
      Minimum Diameter
      10.70 mm (0.421 in.)
      Measurement Point (Distance from the Seat)
      100 mm (3.94 in.)

      Tech Tips


      • If the diameter is less than the minimum, replace the cylinder head set bolt. Failure to do so may lead to engine damage.

      • If there is any thread deformation, replace the cylinder head set bolt with a new one.

  36. INSPECT CYLINDER HEAD SUB-ASSEMBLY

    Click here