CYLINDER HEAD DISASSEMBLY

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 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 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

Click here

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

  • Cam timing control motor with EDU assembly (Including removal and installation)

  • Camshaft timing intake gear assembly (Including removal and installation)

  • Cylinder head sub-assembly

  • Camshaft (for intake or exhaust camshaft)

  • Camshaft timing exhaust gear assembly

  • Piston

  • Port fuel injector assembly

  • Direct fuel injector assembly

  • Fuel pump (for low pressure side)

  • Fuel pump assembly (for high pressure side)

  • No. 2 fuel pressure sensor (for low pressure side)

  • Fuel pressure sensor (for high pressure side)

  • Air fuel ratio sensor (sensor 1)

  • Air fuel ratio sensor (sensor 2)

  • Spark plug

  • Ignition coil assembly

  • Air leaks from intake system

  • Gas leaks from exhaust system

  • Turbocharger sub-assembly

 Inspection after repairs

  • Poor idle, etc.

  • Engine start function, etc.

w/ Canister Pump Module:

Click here

w/o Canister Pump Module:

Click here

Replacement of engine assembly Inspection after repair

  • Poor idle, etc.

  • Engine start function, etc.

  • Reset memory

  • Perform road test to allow ECM to learn

  • Large shift shock

  • Deterioration of fuel efficiency

for AGA0E:

Click here

for AGA0F:

Click here

ECM Vehicle Identification Number (VIN) registration DTC P063051 is output

w/ Canister Pump Module:

Click here

w/o Canister Pump Module:

Click here


    Heavy Knock History

  • Save history

  • Write history

 -

    for AGA0E:

  • 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


    for AGA0E:

  • Automatic transmission fluid

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

Click here


    for AGA0F:

  • Automatic transmission assembly with transfer

  • 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


    for AGA0F:

  • Automatic transmission fluid

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

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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Front bumper assembly (Including removal and installation)

  • Ultrasonic sensor detection angle

  • Ultrasonic sensor detection angle registration

 Parking support brake system

Click here

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

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

Tech Tips


  • Use the same procedure for the Bank 2 side and Bank 1 side.

  • The following procedure is for the Bank 1 side.

PROCEDURE


  1. REMOVE CYLINDER HEAD INTAKE VALVE LH


    1. B006B91N02

      Using SST, compress each compression spring and remove the 6 cylinder head valve spring retainer locks.

      SST
      09202-70020   ( 09202-01010, 09202-01020 )
      09202-00021

    2. Remove the 6 cylinder head valve spring retainers, 6 cylinder head intake valve compression springs and 6 cylinder head intake valves from the cylinder head sub-assembly LH.

      Tech Tips

      Arrange the removed parts in the correct order.

  2. REMOVE CYLINDER HEAD EXHAUST VALVE LH

    CAUTION:


    • The exhaust valve is filled with sodium. Sodium is a strong alkali which may produce a dangerous chemical reaction. Therefore, be very careful when handling and disposing of it.

    • Do not disassemble the exhaust valve for the following reasons: 1) If sodium enters your eyes, vision loss may occur. 2) If sodium contacts your skin, burns may occur. 3) If sodium is exposed to a flame and starts a fire due to the chemical reaction that takes place, burns may occur.

    • If the exhaust valve is damaged, remove the valve and perform the proper procedures to dispose of the sodium. (disposal preparation and actual disposal)

    • When removing a damaged exhaust valve, always wear rubber gloves and safety glasses.

    • Do not cut the exhaust valve to take out the sodium.

    Tech Tips


    • The sodium inside the exhaust valve is safe as long as the sodium is not exposed to air.

    • Exhaust valves filled with sodium can be identified by confirming the "NA" identification mark.


    1. B006AUSN02

      Using SST, compress each compression spring and remove the 6 cylinder head valve spring retainer locks.

      SST
      09202-70020   ( 09202-01010, 09202-01020 )
      09202-00021

    2. Remove the 6 cylinder head valve spring retainers, 6 cylinder head exhaust valve compression springs and 6 cylinder head intake valves from the cylinder head sub-assembly LH.

      Tech Tips

      Arrange the removed parts in the correct order.

  3. REMOVE CYLINDER HEAD INTAKE VALVE STEM OIL SEAL LH


    1. B006FY9

      Using needle-nose pliers, remove the 6 cylinder head intake valve stem oil seals.

  4. REMOVE CYLINDER HEAD EXHAUST VALVE STEM OIL SEAL LH


    1. Using needle-nose pliers, remove the 6 cylinder head exhaust valve stem oil seals.

  5. REMOVE CYLINDER HEAD VALVE SPRING SEAT LH


    1. B006G5E

      Using compressed air and a magnet hand, remove the 12 cylinder head valve spring seats by blowing air onto them.

  6. REMOVE NO. 1 STRAIGHT SCREW PLUG

    Note

    If water leaks from a No. 1 straight screw plug or the plug is corroded, replace it.


    1. B006G8AC02
      *a for Bank 1
      *b for Bank 2

      Using a 6 mm hexagon wrench, remove the 4 No. 1 straight screw plugs.

  7. REMOVE NO. 2 STRAIGHT SCREW PLUG

    Note

    If water leaks from a No. 2 straight screw plug or the plug is corroded, replace it.


    1. Using a 14 mm hexagon wrench, remove the 4 No. 2 straight screw plugs and 4 gaskets.

      B006F0NC02
      *a for Bank 1 *b for Bank 2

  8. REMOVE STUD BOLT

    Note

    If the stud bolt is deformed or the threads are damaged, replace it.

  9. REMOVE RING PIN

    Note

    It is not necessary to remove the ring pins unless they are being replaced.

  10. DISPOSE OF EXHAUST VALVE

    CAUTION:


    • The exhaust valve is filled with sodium. Sodium is a strong alkali which may produce a dangerous chemical reaction. Therefore, be very careful when handling and disposing of it.

    • Do not disassemble the exhaust valve for the following reasons: 1) If sodium enters your eyes, vision loss may occur. 2) If sodium contacts your skin, burns may occur. 3) If sodium is exposed to a flame and starts a fire due to the chemical reaction that takes place, burns may occur.

    • If the exhaust valve is damaged, remove the valve and perform the proper procedures to dispose of the sodium. (disposal preparation and actual disposal)

    • When removing a damaged exhaust valve, always wear rubber gloves and safety glasses.

    • Do not cut the exhaust valve to take out the sodium.

    Note

    If it is clearly stated that the industrial waste disposal method is dissolution, carry out the process below.

    Tech Tips


    • The sodium inside the exhaust valve is safe as long as the sodium is not exposed to air.

    • Exhaust valves filled with sodium can be identified by confirming the "NA" identification mark.


    1. Waste disposal preparation

      CAUTION:

      Always carry out the following when performing the disposal procedure.


      1. Have a fire extinguisher close by.

      2. Wear safety glasses.

      3. Wear rubber gloves.

    2. Waste disposal


      1. Put on rubber gloves and remove the damaged exhaust valve from the cylinder head sub-assembly.

      2. Add 10 L of water or more to a large receptacle (a bucket, oil can, etc.) in a well ventilated area.

      3. Hold the damaged exhaust valve upright with pliers or large pair of tweezers and submerge it into the water.

        CAUTION:


        • Fully submerge the damaged exhaust valve in water.

        • Do not allow any sparks or other flames near the receptacle as hydrogen gas is generated by the chemical reaction.

        • Stay 2 or 3 m or more away from the receptacle as a strong chemical reaction occurs.