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Home >> Toyota >> 2022 >> Corolla Cross L, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Engine Mechanical System (M20A-FXS) - Service Information (2 Of 2)) >> Engine Unit >> Disassembly [11/2022 - ] >> Procedure

Disassembly [11/2022 - ]: Procedure

WARNING: This page is about a different car, the 2025 Toyota Corolla Cross, 2024 Toyota Corolla Cross, and 2023 Toyota Corolla Cross. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE SPARK PLUG 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Refer to PROCEDURE - Step 2
  2. REMOVE KNOCK CONTROL SENSOR 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Refer to PROCEDURE - Step 2
  3. REMOVE OIL PRESSURE AND TEMPERATURE SENSOR 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Refer to PROCEDURE - Step 2
  4. REMOVE OIL PRESSURE CONTROL VALVE ASSEMBLY 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Refer to PROCEDURE - Step 2
  5. REMOVE CAMSHAFT POSITION SENSOR (for Intake Side) 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Refer to PROCEDURE - Step 1
  6. REMOVE CAMSHAFT POSITION SENSOR (for Exhaust Side) 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Refer to PROCEDURE - Step 2
  7. REMOVE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Refer to PROCEDURE - Step 1
  8. REMOVE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Refer to PROCEDURE - Step 2
  9. REMOVE CAM TIMING CONTROL MOTOR O-RING 

    Refer to PROCEDURE - Step 3

  10. REMOVE OIL FILLER CAP ASSEMBLY 
    1. GTY1103253Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE OIL FILLER CAP GASKET 
    1. GTY1108295Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE CRANKSHAFT POSITION SENSOR 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Refer to PROCEDURE - Step 2
  13. REMOVE PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY) 

    Refer to PROCEDURE - Step 2

  14. REMOVE CRANKSHAFT PULLEY ASSEMBLY 
    1. GTY1103344Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Crankshaft Pulley Bolt - -
      *a Hold *b Turn
      1. Using SST, hold the crankshaft pulley assembly and loosen the crankshaft pulley bolt. Further loosen the crankshaft pulley bolt until 2 or 3 threads remain screwed into the crankshaft.
        • SST: 09213-54015 
        • SST: 09330-00021 
      2. Using SST and the crankshaft pulley bolt, remove the crankshaft pulley assembly and crankshaft pulley bolt.
        • SST: 09950-50013 
          1. 09951-05010
          2. 09952-05010
          3. 09953-05020
          4. 09954-05070
          5. 09957-04010

        HINT: 

        Apply lubricant to the threads and end of SST.

  15. REMOVE INLET HEATER WATER HOSE 
    1. GTY1107426Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. REMOVE OUTLET HEATER WATER HOSE 
    1. GTY1107425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. REMOVE WATER OUTLET SUB-ASSEMBLY 
    1. GTY1103255Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE WATER BY-PASS OUTLET 
    1. GTY1104437Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an 8 mm socket wrench, remove the 3 bolts, water by-pass outlet and water pipe outlet gasket from the cylinder head sub-assembly.
  19. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY 
    1. GTY1103384Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an 8 mm socket wrench, remove the 4 bolts (A).
      2. Remove the 12 bolts (B) and cylinder head cover sub-assembly from the camshaft housing sub-assembly.
      3. Remove the 7 cylinder head cover gaskets from the cylinder head cover sub-assembly.
      4. Remove the camshaft bearing cap oil hole gasket from the No. 1 camshaft bearing cap.
  20. REMOVE SPARK PLUG TUBE GASKET 
    1. GTY1109212Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using a screwdriver, pry out the 4 spark plug tube gaskets from the cylinder head cover sub-assembly.
        NOTE:

        Be careful not to damage the cylinder head cover sub-assembly.

        HINT: 

        Tape the screwdriver tip before use.

  21. REMOVE ENGINE MOUNTING BRACKET RH 
    1. GTY1107427Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. REMOVE STRAIGHT SCREW PLUG 
    1. GTY1104811Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using a 10 mm hexagon wrench, remove the straight screw plug from the No. 2 timing chain cover assembly.
  23. REMOVE NO. 2 TIMING CHAIN COVER ASSEMBLY 
    1. GTY1103234Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 20 bolts.
    2. GTY1107915Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the No. 2 timing chain cover assembly from the timing chain cover assembly by prying the No. 2 timing chain cover assembly with a screwdriver with its tip wrapped with protective tape.
        NOTE:

        Be careful not to damage the contact surfaces of the No. 2 timing chain cover assembly and timing chain cover assembly.

  24. REMOVE TIMING CHAIN COVER OIL SEAL 
    1. GTY1107000Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Wooden Block - -
      1. Using a screwdriver and wooden block, pry out the timing chain cover oil seal.
        NOTE:

        Do not damage the surface of the timing chain cover oil seal press fit hole.

        HINT: 

        Tape the screwdriver tip before use.

  25. SET NO. 1 CYLINDER TO TDC (COMPRESSION) 
    1. GTY1105768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Crankshaft Timing Gear Key - -
      *a Approximately 4.63° *b Approximately 33.07°
      *c Approximately 2.73° *d Timing Mark
      1. Temporarily install the crankshaft pulley bolt.
      2. Rotate the crankshaft clockwise and align the crankshaft timing gear key as shown in the illustration.
      3. Check that the timing marks on the camshaft timing exhaust gear assembly and camshaft timing gear assembly are as shown in the illustration.
      4. Remove the crankshaft pulley bolt.

        HINT: 

        As the exhaust camshaft sub-assembly may rotate counterclockwise strongly when the crankshaft pulley bolt is removed, use a wrench to hold the hexagonal portion of the exhaust camshaft sub-assembly.

  26. REMOVE OIL PUMP DRIVE CHAIN SUB-ASSEMBLY 
    1. GTY1108651Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Chain Tensioner Plate *2 Chain Damper Spring
      *3 Oil Pump Drive Chain Sub-assembly *4 Oil Pump Drive Sprocket
      *5 Oil Pump Drive Shaft Sprocket - -
      *a Bolt - -
      1. Temporarily install the crankshaft pulley assembly with the crankshaft pulley bolt.
      2. While holding the crankshaft pulley assembly with SST, remove the bolt.
        • SST: 09213-54015 
        • SST: 09330-00021 
      3. Remove SST, the crankshaft pulley bolt and crankshaft pulley assembly.
      4. Remove the chain tensioner plate and chain damper spring.
      5. Remove the oil pump drive sprocket, oil pump drive shaft sprocket and oil pump drive chain sub-assembly.
  27. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY 
    1. GTY1104609Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Loosen *b Hold
      Turn - -
      1. Hold the hexagonal portion of the exhaust camshaft sub-assembly with a wrench and turn the camshaft timing gear assembly clockwise to loosen the chain sub-assembly between the camshaft timing exhaust gear assembly and camshaft timing gear assembly.
      2. Using a wrench, hold the hexagonal portion of the intake camshaft sub-assembly.
        NOTE:
        • Be careful not to damage the camshaft housing sub-assembly, cylinder head sub-assembly and spark plug tube with the wrench.
        • Do not disassemble the camshaft timing gear assembly.
      3. Using a 10 mm bi-hexagonal wrench, remove the bolt and camshaft timing gear assembly from the intake camshaft sub-assembly.
  28. REMOVE CHAIN SUB-ASSEMBLY 
    1. GTY1103239Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  29. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY 
    1. GTY1107614Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Tape - -
      1. Using an 8 mm socket wrench, remove the bolt.
      2. Remove the nut and No. 1 chain tensioner assembly from the timing chain cover assembly.
        NOTE:

        Make sure that the plunger, check ball assembly and spring do not come out.

      3. Use tape to hold the plunger inside the No. 1 chain tensioner assembly.
        NOTE:
        • Make sure that the plunger, check ball assembly and spring do not come out.
        • If the No. 1 chain tensioner assembly comes apart, reinstall the parts as shown in the illustration.
          GTY779353Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
          *a Plunger *b Check ball assembly
          *c Spring *d No. 1 chain tensioner assembly body
  30. REMOVE CHAIN TENSIONER SLIPPER 
    1. GTY1103241Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  31. REMOVE NO. 1 CHAIN VIBRATION DAMPER 
    1. GTY1103242Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY 
    1. GTY1104143Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Camshaft Timing Exhaust Gear Assembly *2 Camshaft Timing Oil Control Valve Assembly (Exhaust Camshaft Timing Gear Bolt Assembly)
      1. Using a wrench, hold the hexagonal portion of the exhaust camshaft sub-assembly.
        NOTE:

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

      2. Using a 5 mm hexagon socket wrench, remove the 3 bolts.
      3. Remove the camshaft timing exhaust gear assembly and camshaft timing oil control valve assembly (exhaust camshaft timing gear bolt assembly) from the exhaust camshaft sub-assembly.
  33. REMOVE TIMING CHAIN COVER ASSEMBLY 
    1. GTY1103243Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 20 bolts and timing chain cover assembly from the camshaft housing sub-assembly, cylinder head sub-assembly, cylinder block sub-assembly, stiffening crankcase assembly and oil pump assembly.
    2. GTY1103244Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the timing chain cover assembly by prying between the cylinder head sub-assembly, camshaft housing sub-assembly, cylinder block sub-assembly and stiffening crankcase assembly with a screwdriver with its tip wrapped with protective tape.
        NOTE:

        Be careful not to damage the contact surfaces of the cylinder head sub-assembly, camshaft housing sub-assembly, cylinder block sub-assembly, stiffening crankcase assembly and timing chain cover assembly.

  34. REMOVE OIL NOZZLE VALVE SUB-ASSEMBLY 
    1. GTY1103245Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  35. REMOVE CRANKSHAFT TIMING GEAR KEY 
    1. GTY1104088Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using a screwdriver, remove the 2 crankshaft timing gear keys from the crankshaft.

        HINT: 

        Tape the screwdriver tip before use.

  36. REMOVE FUEL PUMP LIFTER GUIDE 
    1. GTY1104086Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an 8 mm socket wrench, remove the 2 bolts and fuel pump lifter guide from the No. 4 camshaft bearing cap.
  37. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY 
    1. Fig 1: Camshaft Housing Sub-Assembly Loosening Sequence
      GTY1107987Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Uniformly loosen and remove the 17 bolts in the order shown in the illustration.
      2. 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.

        HINT: 

        Tape the screwdriver tip before use.

  38. REMOVE CAMSHAFT BEARING CAP 
    1. Fig 2: Camshaft Bearing Cap Loosening Sequence
      GTY1107080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Camshaft Bearing Cap *2 No. 2 Camshaft Bearing Cap
      *3 No. 3 Camshaft Bearing Cap *4 No. 4 Camshaft Bearing Cap
      1. Remove the 9 bolts in the order shown in the illustration.
      2. Remove the No. 1 camshaft bearing cap, No. 2 camshaft bearing cap, 2 No. 3 camshaft bearing caps and No. 4 camshaft bearing cap from the camshaft housing sub-assembly.

        HINT: 

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

  39. REMOVE INTAKE CAMSHAFT SUB-ASSEMBLY 
    1. GTY1103249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  40. REMOVE EXHAUST CAMSHAFT SUB-ASSEMBLY 
    1. GTY1103250Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  41. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY 
    1. GTY1103379Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 16 No. 1 valve rocker arm sub-assemblies from the cylinder head sub-assembly.

        HINT: 

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

  42. REMOVE VALVE LASH ADJUSTER ASSEMBLY 
    1. GTY1107292Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 16 valve lash adjuster assemblies from the cylinder head sub-assembly.

        HINT: 

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

  43. REMOVE VALVE STEM CAP 
    1. GTY1105835Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 16 valve stem caps from the cylinder head sub-assembly.

        HINT: 

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

  44. REMOVE NO. 1 WATER BY-PASS PIPE 
    1. GTY1104872Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an 8 mm socket wrench, remove the 2 bolts, No. 1 water by-pass pipe and water by-pass pipe gasket from the cylinder head sub-assembly.
  45. REMOVE CYLINDER HEAD SUB-ASSEMBLY 
    1. Fig 3: Cylinder Head Sub-Assembly Loosening Sequence
      GTY1104189Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Front of Engine - -
      1. Using a 12 mm socket wrench, uniformly loosen the 10 cylinder head set bolts in the order shown in the illustration. Remove the 10 cylinder head set bolts and 6 plate washers.
        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 set bolts in the incorrect order.

        HINT: 

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

      2. Remove the cylinder head sub-assembly from the cylinder block sub-assembly.
  46. REMOVE CYLINDER HEAD GASKET 

    Refer to PROCEDURE - Step 79

  47. REMOVE CYLINDER BLOCK WATER JACKET SPACER 
    1. GTY1104017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the cylinder block water jacket spacer from the cylinder block sub-assembly.
        NOTE:

        Be sure to remove the cylinder block water jacket spacer. If it is not removed, it may fall and become damaged when the cylinder block sub-assembly is inverted.

  48. REMOVE OIL FILTER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 3

  49. REMOVE OIL FILTER UNION 
    1. GTY1252113Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using a 12 mm hexagon socket wrench, remove the oil filter union from the stiffening crankcase assembly.
  50. REMOVE OIL PAN DRAIN PLUG 
    1. GTY1029531Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  51. REMOVE OIL PAN SUB-ASSEMBLY 
    1. GTY1251976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Nut - -
      1. Remove the 10 bolts and 2 nuts.
      2. Insert the blade of an oil pan seal cutter between the oil pan sub-assembly and stiffening crankcase assembly, cut through the applied sealer and remove the oil pan sub-assembly.
        NOTE:
        • Be careful not to damage the contact surfaces of the stiffening crankcase assembly and oil pan sub-assembly.
        • Be careful not to damage the oil pan sub-assembly flange.
  52. REMOVE OIL STRAINER SUB-ASSEMBLY 
    1. GTY1252307Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an 8 mm socket wrench, remove the bolt, oil strainer sub-assembly and oil strainer gasket from the stiffening crankcase assembly.
  53. REMOVE ENGINE OIL LEVEL SENSOR 

    Refer to PROCEDURE - Step 4

  54. REMOVE OIL PUMP ASSEMBLY 

    Refer to PROCEDURE - Step 6

  55. REMOVE STIFFENING CRANKCASE ASSEMBLY 
    1. GTY1250648Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 10 bolts.
      2. Using a screwdriver, remove the stiffening crankcase assembly by prying between the stiffening crankcase assembly and cylinder block sub-assembly at the places shown in the illustration.
        NOTE:

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

        HINT: 

        Tape the screwdriver tip before use.

  56. REMOVE STRAIGHT SCREW PLUG 
    1. GTY1252484Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using a 10 mm hexagon socket wrench, remove the straight screw plug and gasket from the stiffening crankcase assembly.
  57. REMOVE STUD BOLT 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE:

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

    1. GTY1250844Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  58. REMOVE RING PIN 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE:

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

    1. GTY1250842Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  59. REMOVE STRAIGHT PIN 
    GTY993405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE:

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

    1. GTY1029582Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  60. REMOVE REAR ENGINE OIL SEAL 
    1. GTY1103224Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002