Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001O1S8 |
Model Year Start: 2021 |
Model: Corolla |
Prod Date Range: [04/2020 - 09/2022] |
Title: 2ZR-FXE (ENGINE MECHANICAL): CYLINDER HEAD GASKET: REMOVAL; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022] |
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
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Necessary Procedure
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Effect/Inoperative Function when Necessary Procedure not Performed
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Link
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Disconnect cable from negative auxiliary battery terminal
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Perform steering sensor zero point calibration
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Lane Control System
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Pre-collision System
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Replacement of inverter with converter assembly
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Resolver learning
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DTCs are stored
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Slight vibration at a vehicle speed of 5 km/h (3 mph) or less
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Shock or vibration during acceleration
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for 2ZR-FXE (for Nickel Metal Hydride Battery)
for 2ZR-FXE (for Lithium-ion Battery)
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Replacement of hybrid vehicle transaxle assembly
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Resolver learning
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Initialize resolver
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Replacement of ECM
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Vehicle Identification Number (VIN) registration
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MIL comes on
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Replacement of throttle body assembly
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Replacement of cylinder head sub-assembly
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Replacement of camshaft (for intake or exhaust camshaft)
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Replacement of camshaft timing gear assembly
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Replacement of fuel injector assembly
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Replacement of ignition coil assembly
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Replacement of EGR valve assembly
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Gas leak from exhaust system is repaired
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Inspection After Repair
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Poor idle, etc.
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Engine start function, etc.
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Front wheel alignment adjustment
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Clear zero point calibration data
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Perform yaw rate and acceleration sensor zero point calibration
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DTCs are stored
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ABS warning light illuminates
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Brake warning light / yellow (minor malfunction) illuminates
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Slip indicator light illuminates
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VSC disabled or malfunctions
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NOTICE:
After the power switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System (for HV Model))
PROCEDURE
1. INSTALL ENGINE TO ENGINE STAND
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2. REMOVE ENGINE HANGERS
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3. REMOVE WATER OUTLET
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4. REMOVE EGR PIPE ASSEMBLY
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5. REMOVE EGR VALVE ASSEMBLY WITH EGR COOLER
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6. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR
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7. REMOVE MANIFOLD STAY
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8. REMOVE EXHAUST MANIFOLD (TWC: Front Catalyst)
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9. REMOVE INTAKE MANIFOLD
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10. REMOVE ENGINE OIL LEVEL DIPSTICK
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11. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE
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12. REMOVE WATER BY-PASS PIPE
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13. REMOVE PURGE VALVE (PURGE VSV)
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14. REMOVE FUEL VAPOR FEED PIPE
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15. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY
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16. REMOVE NO. 1 DELIVERY PIPE SPACER
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17. REMOVE FUEL INJECTOR ASSEMBLY
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18. REMOVE IGNITION COIL ASSEMBLY
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19. REMOVE CAMSHAFT POSITION SENSOR
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20. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
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21. REMOVE CYLINDER HEAD COVER GASKET
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22. REMOVE SPARK PLUG TUBE GASKET
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23. SET NO. 1 CYLINDER TO TDC (COMPRESSION)
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24. REMOVE CRANKSHAFT PULLEY
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25. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
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26. REMOVE TIMING CHAIN COVER OIL SEAL
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27. REMOVE TIMING CHAIN COVER SUB-ASSEMBLY
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28. REMOVE CHAIN TENSIONER SLIPPER
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29. REMOVE NO. 1 CHAIN VIBRATION DAMPER
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30. REMOVE NO. 2 CHAIN VIBRATION DAMPER
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31. REMOVE CHAIN SUB-ASSEMBLY
(a) Using a wrench to hold the hexagonal portion of the camshaft, turn the camshaft timing gear assembly counterclockwise to loosen the chain sub-assembly between the camshaft timing sprocket and camshaft timing gear assembly.
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*a
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Loosen the Chain Sub-assembly
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*b
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Place the chain sub-assembly on the non-toothed portion of camshaft timing gear assembly
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(b) With the chain sub-assembly loosened, separate the chain sub-assembly from the teeth of the camshaft timing gear assembly and place it on the non-toothed portion of camshaft timing gear assembly.
(c) Turn the camshaft clockwise to return it to its original position and remove the chain sub-assembly.
32. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY
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33. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY
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34. REMOVE CAMSHAFT TIMING SPROCKET
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35. REMOVE CAMSHAFT BEARING CAP
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36. REMOVE NO. 2 CAMSHAFT
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37. REMOVE CAMSHAFT
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38. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY
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39. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
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40. REMOVE VALVE LASH ADJUSTER ASSEMBLY
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41. REMOVE VALVE STEM CAP
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42. REMOVE CYLINDER HEAD SUB-ASSEMBLY
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43. REMOVE CYLINDER HEAD GASKET
(a) Remove the cylinder head gasket from the cylinder block sub-assembly.
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44. INSPECT CYLINDER HEAD SET BOLT
Click here
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