Camshaft Removal

Engine Hybrid System. Corolla. Zre142 Aze141
2Zr-Fe Engine Mechanical. Corolla. Zre142 Aze141

  1. REMOVE FRONT WIPER ARM HEAD CAP

  2. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH

  3. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH

  4. REMOVE HOOD TO COWL TOP SEAL

  5. REMOVE CENTER NO. 1 COWL TOP VENTILATOR LOUVER

  6. REMOVE COWL TOP VENTILATOR LOUVER LH

  7. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

  8. REMOVE OUTER COWL TOP PANEL (for TMC Made)

  9. REMOVE OUTER COWL TOP PANEL (except TMC Made)

  10. REMOVE NO. 2 CYLINDER HEAD COVER

  11. REMOVE IGNITION COIL ASSEMBLY

  12. REMOVE RADIO SETTING CONDENSER

  13. DISCONNECT NO. 2 VENTILATION HOSE

  14. DISCONNECT ENGINE WIRE

  15. REMOVE AIR TUBE

  16. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY

  17. SET NO. 1 CYLINDER TO TDC/COMPRESSION

  18. REMOVE NO. 2 CHAIN VIBRATION DAMPER

  19. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY

  20. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY

  21. INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY

  22. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY

  23. REMOVE CAMSHAFT BEARING CAP

  24. REMOVE NO. 2 CAMSHAFT

  25. REMOVE CAMSHAFT

  26. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY

  27. REMOVE NO. 1 CAMSHAFT BEARING

  28. REMOVE NO. 2 CAMSHAFT BEARING

Camshaft -- Removal



1. REMOVE FRONT WIPER ARM HEAD CAP


    Corolla. Zre142 Aze141
  1. Remove the 2 front wiper arm head caps.



2. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH


    Corolla. Zre142 Aze141
  1. Remove the nut and the front wiper arm and blade assembly LH.



3. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH


    Corolla. Zre142 Aze141
  1. Remove the nut and the front wiper arm and blade assembly RH.



4. REMOVE HOOD TO COWL TOP SEAL


    Corolla. Zre142 Aze141
  1. Disengage the 7 clips and remove the hood to cowl top seal.



5. REMOVE CENTER NO. 1 COWL TOP VENTILATOR LOUVER


    Corolla. Zre142 Aze141
  1. Disengage the clip and 14 claws, and remove the center No. 1 cowl top ventilator louver.



6. REMOVE COWL TOP VENTILATOR LOUVER LH


    Corolla. Zre142 Aze141
  1. Disengage the clip and 8 claws, and remove the cowl top ventilator louver LH.



7. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY


    Corolla. Zre142 Aze141
  1. Disconnect the connector.

  1. Remove the 2 bolts and the windshield wiper motor and link assembly.



8. REMOVE OUTER COWL TOP PANEL (for TMC Made)


    Corolla. Zre142 Aze141
  1. Disengage the clamp and bend the water guard plate RH as shown in the illustration.



    Corolla. Zre142 Aze141
  1. Disengage the clamp.

  1. Remove the 12 bolts and outer cowl top panel.



9. REMOVE OUTER COWL TOP PANEL (except TMC Made)


    Corolla. Zre142 Aze141
  1. Disengage the clamp and bend the water guard plate RH as shown in the illustration.



    Corolla. Zre142 Aze141
  1. Disengage the clamp and bend the No. 1 heater air duct splash shield seal.



    Corolla. Zre142 Aze141
  1. Disengage the clamp.

  1. Remove the 12 bolts and outer cowl top panel.



10. REMOVE NO. 2 CYLINDER HEAD COVER


    Corolla. Zre142 Aze141
  1. Hold the rear of the cover and raise it to disengage the 2 clips on the rear of the cover. Continue to raise the cover to disengage the 2 clips on the front of the cover to remove the cover.

    NOTICE:
    Attempting to disengage both front and rear clips at the same time may cause the cover to break.


11. REMOVE IGNITION COIL ASSEMBLY


    Corolla. Zre142 Aze141
  1. Disconnect the 4 ignition coil connectors.



    Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
  1. Remove the 4 bolts and 4 ignition coils.

    NOTICE:
    When removing each ignition coil, do not damage the plug cap on the engine head cover opening or the upper edge of the spark plug tube.


12. REMOVE RADIO SETTING CONDENSER


    Corolla. Zre142 Aze141
  1. Remove the bolt and radio setting condenser.



13. DISCONNECT NO. 2 VENTILATION HOSE


    Corolla. Zre142 Aze141
  1. Disconnect the No. 2 ventilation hose.



14. DISCONNECT ENGINE WIRE


    Corolla. Zre142 Aze141
  1. Remove the 2 bolts, 5 connectors, 5 clamps and disconnect the engine wire.



15. REMOVE AIR TUBE


    Corolla. Zre142 Aze141
  1. Remove the 2 bolts, 4 hoses and air tube assembly.



16. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY


    Corolla. Zre142 Aze141
  1. Remove the 13 bolts, seal washer and cylinder head cover.

    NOTICE:
    Be careful not to drop any of the gaskets into the engine when removing the cylinder head cover because the gaskets may stick to the cylinder head cover.


    Corolla. Zre142 Aze141
  1. Remove the cylinder head cover gasket.



    Corolla. Zre142 Aze141
  1. Remove the 3 gaskets from the camshaft bearing cap.



17. SET NO. 1 CYLINDER TO TDC/COMPRESSION


    Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
  1. Turn the crankshaft pulley until its timing notch (groove) and the timing mark "0" of the timing chain cover are aligned.

  1. Check that each matchmark of the camshaft timing gear and camshaft timing exhaust gear are aligned with each matchmark located as shown in the illustration. If not, turn the crankshaft 1 revolution (360°) to align the timing marks as shown in the illustration.



    Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
  1. Place paint marks on the chain in alignment with the timing marks on the camshaft timing gear and camshaft timing exhaust gear.



18. REMOVE NO. 2 CHAIN VIBRATION DAMPER


    Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
  1. Using SST, remove the 2 bolts and No. 2 chain vibration damper from the camshaft bearing cap.

    SST
    09961-00950


19. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY


    Corolla. Zre142 Aze141
  1. Remove the 2 nuts, bracket, tensioner and gasket.

    NOTICE:
    Do not turn the crankshaft without the chain tensioner installed.


20. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY


    Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
  1. While holding the hexagonal portion of the No. 2 camshaft with a wrench, loosen the camshaft timing exhaust gear bolt with SST.

    SST
    09249-37010
    NOTICE:
    Do not remove the other 4 bolts ("TORX" bolt). If any of them is removed, replace the camshaft timing exhaust gear assembly.
    HINT:
    The bolt cannot be removed separately from the camshaft timing exhaust gear assembly due to lack of space.
  1. Hold the hexagonal portion of the intake camshaft with a wrench and turn it slightly counterclockwise to release the chain.

    NOTICE:
    Do not turn the intake camshaft more than necessary.
    HINT:
    Be sure to loosen the chain because the camshaft timing exhaust gear assembly cannot be removed with the chain tensioned.


    Corolla. Zre142 Aze141
  1. While removing the chain, pull out the camshaft timing exhaust gear assembly horizontally and then upward with the bolts installed.



21. INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY


  1. Temporarily install the camshaft timing exhaust gear assembly.



      Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
    1. Install the bolt to the camshaft timing exhaust gear assembly.

    2. Align the knock pin on the No. 2 camshaft with the pin hole in the camshaft timing exhaust gear assembly and temporarily install the camshaft timing exhaust gear assembly to the No. 2 camshaft with the bolt.

      NOTICE:
      1. Do not install the chain onto the gear at this step.
      2. Do not allow the chain to interfere with the gear when installing the gear assembly.
  1. Inspect the camshaft timing exhaust gear lock.

    1. Check that the camshaft timing exhaust gear is locked.



  1. Inspect camshaft timing exhaust gear operation.



      Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
    1. After cleaning and degreasing the exhaust side VVT oil hole on the No. 1 camshaft bearing cap, completely seal the oil hole with adhesive tape or equivalent as shown in the illustration to prevent air from leaking.

      NOTICE:
      Be sure to seal the oil hole completely because air leaks due to insufficient sealing will prevent the lock pin from being released.
    2. Make a hole in the adhesive tape covering the oil hole as shown in the illustration. (Procedure B)



    3. Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
    4. Apply approximately 200 kPa (2.0 kgf/cm2, 28 psi.) of air pressure to the hole made in procedure B to release the lock pin.

      NOTICE:
      1. If air leaks out, reattach the adhesive tape.
      2. Cover the oil hole with a piece of cloth when applying air pressure to prevent oil from spraying.
    5. Using a screwdriver with its tip taped, forcibly turn the camshaft timing exhaust gear in the retard direction (clockwise).

      NOTICE:
      1. Be sure to keep the camshaft timing exhaust gear in the retard direction. If the gear is released, it will return to the advanced position automatically due to the force from the spring.
      2. Do not damage the camshaft timing exhaust gear.
      HINT:
      Depending on the air pressure applied, the camshaft timing exhaust gear may turn in the retard direction without assistance by hand.


    6. Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
    7. Using a screwdriver with its tip taped, turn the camshaft timing exhaust gear within its movable range (20°) 2 or 3 times without turning it to the most advanced position. Check that the camshaft timing gear turns smoothly.

    8. Lock the camshaft timing exhaust gear.

      NOTICE:
      Check that the camshaft timing exhaust gear assembly locks at the most advanced position (the most advanced position of its movable range) and cannot be rotated any further.
    9. Remove the adhesive tape from the No. 1 camshaft bearing cap.



  1. Remove the camshaft timing exhaust gear assembly.



      Corolla. Zre142 Aze141
    1. Remove the temporarily installed camshaft timing exhaust gear assembly.



22. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY
  1. Inspect the camshaft timing gear lock.

    1. Check that the camshaft timing gear is locked.



  1. Inspect camshaft timing gear operation.



      Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
    1. After cleaning and degreasing the intake side VVT oil hole on the No. 1 camshaft bearing cap, completely seal the oil hole with adhesive tape or equivalent as shown in the illustration to prevent air from leaking.

      NOTICE:
      Be sure to seal the oil hole completely because air leaks due to insufficient sealing will prevent the lock pin from being released.
    2. Make a hole in the adhesive tape covering the oil hole as shown in the illustration. (Procedure A)



    3. Corolla. Zre142 Aze141
    4. Apply approximately 150 kPa (1.5 kgf/cm2, 22 psi.) of air pressure to the hole made in procedure A to release the lock pin.

      NOTICE:
      1. If air leaks out, reattach the adhesive tape.
      2. Cover the oil hole with a piece of cloth when applying air pressure to prevent oil from spraying.
    5. Forcibly turn the camshaft timing gear in the advance direction (counterclockwise).

      HINT:
      Depending on the air pressure applied, the camshaft timing gear may turn in the advance direction without assistance by hand.


    6. Corolla. Zre142 Aze141
    7. Turn the camshaft timing gear within its movable range (27.5°) 2 or 3 times without turning it to the most retarded position. Check that the camshaft timing gear turns smoothly.

      NOTICE:
      1. Do not lock the camshaft timing gear assembly.
      2. If camshaft timing gear assembly is locked, release the lock pin again.
    8. Remove the adhesive tape from the No. 1 camshaft bearing cap.



23. REMOVE CAMSHAFT BEARING CAP


    Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
  1. Uniformly loosen and remove the 10 bearing cap bolts in the sequence shown in the illustration.

    NOTICE:
    Be sure not to loosen the other 15 bearing cap bolts in this step.
    HINT:
    Arrange the removed parts in the correct order.


  1. Remove the bolts and bearing caps in the order shown in the illustration. Immediately after removing bearing caps, install service bolts and spacers in the order shown in the illustration.


    Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal


    Text in Illustration
    *1
    Service Bolt and Spacer (used to temporarily secure the camshaft housing)
    -
    -
    *a
    The removal order of the parts
    *b
    The installation order of the bolts and spacers for temporarily tightening the camshaft housing
    Torque:
    27 N*m{275 kgf*cm, 20 ft.*lbf}
    NOTICE:
    1. If the bolts are loosened all at once, FIPG on the camshaft housing and cylinder head may peel off, resulting in oil oozing. Therefore, be sure to install the service bolts and spacers to one bearing cap at a time.
    2. Do not install the bearing caps when installing the service bolts and spacers.
    HINT:
    1. Arrange the removed parts in the correct order.
    2. Part number for the service bolts used to temporarily secure the camshaft housing: 91551-G0875 (15 bolts)
    3. Part number for the service washers used to temporarily secure the camshaft housing: 90387-12048 (15 spacers)


24. REMOVE NO. 2 CAMSHAFT


    Corolla. Zre142 Aze141
  1. Remove the No. 2 camshaft from the camshaft housing.



25. REMOVE CAMSHAFT


    Corolla. Zre142 Aze141
  1. Hold up the chain and remove the camshaft from the camshaft housing.



    Corolla. Zre142 Aze141
  1. Suspend the chain with a string or equivalent.



26. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY
  1. Secure the hexagonal portion of the camshaft in a soft jaw vise.



    Corolla. Zre142 Aze141.2Zr-Fe Engine Mechanical.Engine.Camshaft  Removal
  1. Remove the flange bolt and the camshaft timing gear assembly.

    NOTICE:
    1. Before removing the camshaft timing gear, make sure that the lock pin has been released.
    2. Be sure not to remove the other 4 bolts.
    3. Keep the camshaft timing gear assembly horizontal while removing it from the camshaft.
    4. If the camshaft timing gear assembly is to be reused, be sure to use it with the lock pin released.


27. REMOVE NO. 1 CAMSHAFT BEARING


    Corolla. Zre142 Aze141
  1. Remove the 2 No. 1 camshaft bearings.

    HINT:
    Arrange the removed parts in the correct order.


28. REMOVE NO. 2 CAMSHAFT BEARING


    Corolla. Zre142 Aze141
  1. Remove the 2 No. 2 camshaft bearings.

    HINT:
    Arrange the removed parts in the correct order.