CYLINDER HEAD GASKET REMOVAL

CAUTION / NOTICE / HINT

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

Necessary Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Battery terminal is disconnected/reconnected Perform steering sensor zero point calibration Lane departure alert system (w/ Steering Control)

Click here

Pre-collision system
Memorize steering angle neutral point Parking assist monitor system

Click here

Replacement of ECM Vehicle Identification Number (VIN) registration MIL comes on

Click here

Perform code registration (Immobiliser system)
  • Wireless door lock control system

  • Smart Entry and Start System (for Entry Function)

  • Smart Entry and Start System (for Start Function)

  • Steering lock function

See Service Bulletin for the registration method.

  • Replacement of engine assembly

  • Gas leak from exhaust system is repaired

  • Replacement of throttle body with motor assembly

  • Replacement of cylinder head sub-assembly

  • Replacement of camshaft

    (for intake or exhaust camshaft)

  • Replacement of camshaft timing gear assembly

  • Replacement of camshaft timing exhaust gear assembly

  • Replacement of fuel injector assembly

  • Replacement of ignition coil assembly

Inspection after repair
  • Poor idle, etc.

  • Engine start function, etc.

Click here

Replacement of ECM

(If possible, read the transaxle compensation code from the previous ECM)

Possible

Perform the following procedures in the order shown:


  1. Reset Memory

  2. Transfer transaxle compensation code

  3. Perform road test to allow ECM to learn


  • Large shift shock

  • The deterioration of fuel efficiency

Click here for U760E Initialization

Click here for U760E Registration

Impossible

Perform the following procedures in the order shown:


  1. Reset Memory

  2. Reset transaxle compensation code

  3. Perform road test to allow ECM to learn

Replacement of ECM*1 Perform code registration (Immobiliser function)
  • Wireless door lock control system

  • Smart Entry and Start System (for Entry Function)

  • Smart Entry and Start System (for Start Function)

  • Steering lock function

See Service Bulletin for the registration method.
Replacement of ECM*2 Perform code registration (Immobiliser system)
  • Wireless door lock control system

  • Engine start

See Service Bulletin for the registration method.
Replacement of automatic transaxle fluid ATF thermal degradation estimate reset The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly.

Click here

Suspension, tires*3 Rear television camera assembly optical axis (Back camera position setting) Parking assist monitor system

Click here for Initialization

Click here for Calibration

Perform headlight ECU sub-assembly LH initialization Lighting system (EXT)

Click here

Front wheel alignment adjustment Perform system variant learning and acceleration sensor zero point calibration.
  • VSC disabled or malfunctioning

  • DTCs are output

  • Slip indicator light illuminated

  • ABS warning light illuminated

Click here

*1: w/ Smart Entry and Start System
*2: w/o Smart Entry and Start System
*3: The vehicle height changes because of suspension or tire replacement.

PROCEDURE


  1. REMOVE TIMING CHAIN COVER SUB-ASSEMBLY

    Click here

  2. REMOVE MANIFOLD STAY

    Click here

  3. REMOVE NO. 2 MANIFOLD STAY

    Click here

  4. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

    Click here

  5. REMOVE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY (TWC: Front Catalyst)

    Click here

  6. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY

    Click here

  7. REMOVE THROTTLE BODY GASKET

    Click here

  8. REMOVE VACUUM SWITCHING VALVE ASSEMBLY (for ACIS)

    Click here

  9. REMOVE FUEL DELIVERY PIPE

    Click here

  10. REMOVE FUEL DELIVERY SPACER

    Click here

  11. REMOVE INJECTOR VIBRATION INSULATOR

    Click here

  12. REMOVE FUEL INJECTOR ASSEMBLY

    Click here

  13. DISCONNECT NO. 2 VENTILATION HOSE

    Click here

  14. REMOVE INTAKE MANIFOLD

    Click here

  15. SET NO. 1 CYLINDER TO TDC/COMPRESSION

    Click here

  16. REMOVE TIMING CHAIN GUIDE


    1. B006YBG

      Remove the bolt and timing chain guide.

  17. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY


    1. B0070LVC19
      *a Stopper Plate
      *b Plunger

      Allow the plunger to extend slightly, and then turn the stopper plate counterclockwise to release the lock. Once the lock is released, push the plunger into the No. 1 chain tensioner assembly.

    2. B006WU5C18
      *a Pin

      Move the stopper plate clockwise to set the lock, and insert a pin into the stopper plate hole.

    3. B006XD8

      Remove the 2 bolts, No. 1 chain tensioner assembly and gasket.

  18. REMOVE CHAIN TENSIONER SLIPPER


    1. B0070Y0

      Remove the bolt and chain tensioner slipper.

  19. REMOVE CHAIN SUB-ASSEMBLY


    1. Remove the chain sub-assembly.

  20. REMOVE NO. 1 CHAIN VIBRATION DAMPER


    1. B006X0X

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

  21. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY


    1. B006XGCC01
      *a Hold
      *b Turn
      *c Do not remove

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

      Note


      • Be careful not to damage the cylinder head sub-assembly or spark plug tube with the wrench.

      • Do not disassemble the camshaft timing gear assembly.

      • Do not remove the other 4 bolts.

  22. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY


    1. B006WXZC01
      *a Hold
      *b Turn

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

      Note

      Be careful not to damage the camshaft housing sub-assembly, cylinder head sub-assembly or spark plug tube with the wrench.

  23. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY


    1. B0070DBN01

      Uniformly loosen and remove the 20 bolts in the order shown in the illustration.

    2. B006X8Y

      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.

      Tech Tips

      Tape the screwdriver tip before use.

  24. REMOVE CAMSHAFT BEARING CAP


    1. B0071DQC03
      *1 No. 1 Camshaft Bearing Cap
      *2 No. 2 Camshaft Bearing Cap
      *3 No. 3 Camshaft Bearing Cap

      Remove the 11 bolts in the order shown in the illustration.

    2. Remove the No. 1 camshaft bearing cap, No. 2 camshaft bearing cap and 3 No. 3 camshaft bearing caps.

      Tech Tips

      Arrange the removed parts in such a way that they can be reinstalled to their original locations.

  25. REMOVE OIL CONTROL VALVE FILTER

    Click here

  26. REMOVE NO. 1 CAMSHAFT BEARING

    Click here

  27. REMOVE CAMSHAFT


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

  28. REMOVE NO. 2 CAMSHAFT


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

  29. REMOVE NO. 2 CAMSHAFT BEARING

    Click here

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


    1. Remove the 16 No. 1 valve rocker arm sub-assemblies.

      Tech Tips

      Arrange the removed parts in such a way that they can be reinstalled to their original locations.

  31. REMOVE VALVE LASH ADJUSTER ASSEMBLY


    1. Remove the 16 valve lash adjuster assemblies from the cylinder head sub-assembly.

      Tech Tips

      Arrange the removed parts in such a way that they can be reinstalled to their original locations.

  32. REMOVE VALVE STEM CAP


    1. Remove the 16 valve stem caps from the cylinder head sub-assembly.

      Tech Tips

      Arrange the removed parts in such a way that they can be reinstalled to their original locations.

  33. REMOVE CYLINDER HEAD SUB-ASSEMBLY


    1. B006XBYN02

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

      Tech Tips

      Arrange the removed parts in such a way that they can be reinstalled to their original locations.

    2. Remove the cylinder head sub-assembly.

      Note


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

      • Warpage or cracking of the cylinder head sub-assembly may result from removing the cylinder head bolts in the incorrect order.

  34. REMOVE CYLINDER HEAD GASKET


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