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 Memorize steering angle neutral point Simple intelligent parking assist system*1

Click here

Toyota parking assist-sensor system (w/ Simple Intelligent Parking Assist System)*1
Initialize back door lock Power door lock control system

Click here

Replacement of CVT fluid ATF thermal degradation estimate reset The value of the Data List item "ATF thermal Degradation Estimate" is not estimated correctly

Click here

Front wheel alignment adjustment

Perform the following procedures in the order shown:


  1. Clear zero point calibration data and store system information

  2. Perform yaw rate and acceleration sensor zero point calibration and store system information

  • VSC disabled or malfunctions

  • DTCs are stored

  • Slip indicator light illuminates

  • ABS warning light illuminates

Click here

*1: When performing learning using the GTS.

Click here

PROCEDURE


  1. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY

    Click here

  2. REMOVE NO. 1 WATER BY-PASS PIPE


    1. A005Q9H

      Remove the 2 bolts and No. 1 water by-pass pipe.

  3. REMOVE VALVE STEM CAP

    Click here

  4. REMOVE CYLINDER HEAD SUB-ASSEMBLY


    1. A001STWN20

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

      Note


      • Removing the cylinder head set bolts in the wrong order may cause warpage or cracking of the cylinder head sub-assembly.

      • Do not drop the plate washers into the cylinder head sub-assembly.

    2. Using a screwdriver, remove the cylinder head sub-assembly by prying between the cylinder head sub-assembly and cylinder block sub-assembly.

      Note

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

      Tech Tips

      Tape the screwdriver tip before use.

  5. REMOVE CYLINDER HEAD GASKET


    1. A001Y1W

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

  6. INSPECT CYLINDER HEAD FOR FLATNESS

    Click here

  7. INSPECT CYLINDER HEAD SET BOLT

    Click here