Engine Unit (For Hatchback) Disassembly

Engine Hybrid System. Yaris. Ncp93, 131
1Nz-Fe Engine Mechanical. Yaris. Ncp93, 131

  1. REMOVE SPARK PLUG

  2. REMOVE KNOCK SENSOR

  3. REMOVE ENGINE OIL PRESSURE SWITCH ASSEMBLY

  4. REMOVE ENGINE COOLANT TEMPERATURE SENSOR

  5. REMOVE WATER INLET

  6. REMOVE THERMOSTAT

  7. REMOVE OIL FILLER CAP SUB-ASSEMBLY

  8. REMOVE OIL FILLER CAP GASKET

  9. REMOVE CRANKSHAFT POSITION SENSOR

  10. REMOVE VENTILATION VALVE SUB-ASSEMBLY

  11. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY

  12. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

  13. REMOVE OIL LEVEL DIPSTICK GUIDE

  14. REMOVE WATER PUMP PULLEY

  15. REMOVE CRANKSHAFT DAMPER SUB-ASSEMBLY

  16. REMOVE TRANSVERSE ENGINE ENGINE MOUNTING BRACKET

  17. REMOVE ENGINE WATER PUMP ASSEMBLY

  18. REMOVE OIL PUMP ASSEMBLY

  19. REMOVE OIL PUMP SEAL

  20. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY

  21. REMOVE CHAIN TENSIONER SLIPPER

  22. REMOVE NO. 1 CHAIN VIBRATION DAMPER

  23. REMOVE CHAIN SUB-ASSEMBLY

  24. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY

  25. REMOVE NO. 1 DELIVERY PIPE SPACER

  26. REMOVE INJECTOR VIBRATION INSULATOR

  27. REMOVE FUEL INJECTOR ASSEMBLY

  28. REMOVE CAMSHAFT POSITION SENSOR

  29. REMOVE NO. 2 CAMSHAFT

  30. REMOVE CAMSHAFT TIMING SPROCKET

  31. REMOVE CAMSHAFT

  32. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY

  33. REMOVE CYLINDER HEAD SUB-ASSEMBLY

  34. REMOVE CYLINDER HEAD GASKET

  35. REMOVE OIL FILTER SUB-ASSEMBLY

  36. REMOVE OIL FILTER UNION

  37. REMOVE REAR ENGINE OIL SEAL

  38. REMOVE NO. 2 OIL PAN SUB-ASSEMBLY

  39. REMOVE OIL STRAINER SUB-ASSEMBLY

  40. REMOVE OIL PAN SUB-ASSEMBLY

  41. REMOVE STUD BOLT

Engine Unit (For Hatchback) -- Disassembly



1. REMOVE SPARK PLUG


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using a 16 mm spark plug wrench, remove the 4 spark plugs.



2. REMOVE KNOCK SENSOR


    Yaris. Ncp93, 131
  1. Remove the nut and the knock sensor.



3. REMOVE ENGINE OIL PRESSURE SWITCH ASSEMBLY


    Yaris. Ncp93, 131
  1. Using a 24 mm deep socket wrench, remove the engine oil pressure switch.



4. REMOVE ENGINE COOLANT TEMPERATURE SENSOR


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using a 19 mm deep socket wrench, remove the engine coolant temperature sensor.



5. REMOVE WATER INLET


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Remove the 2 nuts and the water inlet.



6. REMOVE THERMOSTAT


    Yaris. Ncp93, 131
  1. Remove the thermostat.

  1. Remove the gasket from the thermostat.



7. REMOVE OIL FILLER CAP SUB-ASSEMBLY


Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Remove the oil filler cap from the cylinder head cover.



8. REMOVE OIL FILLER CAP GASKET


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using a screwdriver with its tip wrapped in protective tape, remove the oil filler gasket from the oil filler cap.

    Text in Illustration
    *1
    Protective Tape


9. REMOVE CRANKSHAFT POSITION SENSOR
  1. Remove the bolt and the crankshaft position sensor.



10. REMOVE VENTILATION VALVE SUB-ASSEMBLY


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Remove the ventilation valve from the cylinder head cover.



11. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Remove the 9 bolts, 2 nuts and 2 seal washers and then remove the cylinder head cover.

  1. Remove the gasket from the cylinder head cover.



12. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Remove the bolt and the camshaft timing oil control valve.



13. REMOVE OIL LEVEL DIPSTICK GUIDE
  1. Remove the bolt and the oil level dipstick guide.

  1. Remove the O-ring from the oil level dipstick guide.



14. REMOVE WATER PUMP PULLEY


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using SST, hold the water pump pulley.

    SST
    09960-10010(09962-01000,09963-00700)
  1. Remove the 3 bolts and the water pump pulley.



15. REMOVE CRANKSHAFT DAMPER SUB-ASSEMBLY


  1. Set the No. 1 cylinder to TDC/compression.



      Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
    1. Turn the crankshaft damper, and align its timing notch with timing mark "0" of the oil pump.

      Text in Illustration
      *a
      Timing Notch


    2. Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
    3. Check that the timing marks on the camshaft timing sprocket and the camshaft timing gear are all facing upward, as shown in the illustration.

      Text in Illustration
      *a
      Timing Marks
      If not, turn the crankshaft 1 complete revolution (360°) and align the marks as above.


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using SST, loosen the bolt while holding the crankshaft damper.

    SST
    09213-14010(91651-60865)
    09330-00021
    NOTICE:
    Check the SST installation positions when installing them, to avoid the SST fixing bolts from coming into contact with the oil pump assembly.
  1. Remove the SST.

  1. Remove the bolt and the crankshaft damper.



16. REMOVE TRANSVERSE ENGINE ENGINE MOUNTING BRACKET


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Remove the 4 bolts and the transverse engine engine mounting bracket.



17. REMOVE ENGINE WATER PUMP ASSEMBLY


    Yaris. Ncp93, 131
  1. Remove the 3 bolts, 2 nuts and the engine water pump and gasket.



18. REMOVE OIL PUMP ASSEMBLY


    Yaris. Ncp93, 131
  1. Remove the 15 bolts and nut.



    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using a screwdriver with its tip wrapped in protective tape, pry the oil pump assembly to remove it.

    Text in Illustration
    *1
    Protective Tape
    NOTICE:
    Do not damage the contact surface of the oil pump and oil pan.


    Yaris. Ncp93, 131
  1. Remove the 2 O-rings from the cylinder block and oil pan.



19. REMOVE OIL PUMP SEAL


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using a screwdriver with its tip wrapped in protective tape, remove the oil pump seal.

    Text in Illustration
    *1
    Wooden Blocks
    *2
    Protective Tape


20. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY


Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
NOTICE:
  1. Do not rotate the crankshaft with the chain tensioner removed.
  2. When rotating the camshaft with the timing chain removed, rotate the crankshaft counterclockwise 40° from the TDC first, and align the oil jet hole with the paint mark. This prevents the pistons from coming into contact with the valves.
Text in Illustration
*1
Oil Jet
*a
Timing Mark (1 dot)


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Pull up the stopper plate and hold it with its lock released.

    Text in Illustration
    *1
    Stopper Plate


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Unlock the plunger of the tensioner and push it in to the end.

    Text in Illustration
    *1
    Plunger


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Pull down the stopper plate with the plunger pushed to the end and lock the plunger.

    Text in Illustration
    *1
    Stopper Plate


    Yaris. Ncp93, 131
  1. Insert a 3 mm (0.12 in.) diameter bar into the hole in the stopper plate and lock the plunger.



    Yaris. Ncp93, 131
  1. Remove the 2 bolts and the No. 1 chain tensioner.



21. REMOVE CHAIN TENSIONER SLIPPER


    Yaris. Ncp93, 131
  1. Remove the chain tensioner slipper.



22. REMOVE NO. 1 CHAIN VIBRATION DAMPER


    Yaris. Ncp93, 131
  1. Remove the 2 bolts and the No. 1 chain vibration damper.



23. REMOVE CHAIN SUB-ASSEMBLY


24. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY


Yaris. Ncp93, 131
  1. Remove the 3 bolts and remove the fuel delivery pipe together with the 4 fuel injectors.

    NOTICE:
    Do not drop the fuel injectors when removing the fuel delivery pipe.


25. REMOVE NO. 1 DELIVERY PIPE SPACER


    Yaris. Ncp93, 131
  1. Remove the 2 No. 1 delivery pipe spacers.



26. REMOVE INJECTOR VIBRATION INSULATOR


    Yaris. Ncp93, 131
  1. Remove the 4 injector vibration insulators.



27. REMOVE FUEL INJECTOR ASSEMBLY


    Yaris. Ncp93, 131
  1. Pull the 4 fuel injector assemblies out of the fuel delivery pipe.

    Text in Illustration
    Yaris. Ncp93, 131
    Pull


28. REMOVE CAMSHAFT POSITION SENSOR


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Remove the bolt and the camshaft position sensor.



29. REMOVE NO. 2 CAMSHAFT


Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
NOTICE:
  1. Do not rotate the crankshaft with the chain tensioner removed.
  2. When rotating the camshaft with the timing chain removed, rotate the crankshaft counterclockwise 40° from the TDC first, and align the oil jet hole with the paint mark. This prevents the pistons from coming into contact with the valves.
Text in Illustration
*1
Oil Jet
*a
Timing Mark (1 dot)


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using several steps, loosen and remove the 11 bearing cap bolts uniformly in the sequence shown in the illustration, then remove the No. 1 camshaft bearing cap, No. 2 camshaft bearing cap and No. 2 camshaft.

    NOTICE:
    Loosen each bolt uniformly while keeping the camshaft level.


30. REMOVE CAMSHAFT TIMING SPROCKET


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Clamp the camshaft in a vise, and confirm that it is locked.

    NOTICE:
    Do not damage the camshaft.
  1. Remove the bolt and the camshaft timing sprocket.



31. REMOVE CAMSHAFT


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using several steps, loosen and remove the 8 bearing cap bolts uniformly in the sequence shown in the illustration, then remove the No. 2 camshaft bearing cap and the camshaft.

    NOTICE:
    Loosen each bolt uniformly keeping the camshaft level.


32. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY
  1. Clamp the camshaft in a vise, and confirm that it is locked.

    NOTICE:
    Do not damage the camshaft.


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Cover the 4 oil paths of the cam journal with tape as shown in the illustration.

    Text in Illustration
    *1
    Rubber Piece
    *2
    Vinyl Tape
    *a
    Advance Side Paths
    *b
    Retard Side Paths
    *c
    Open
    *d
    Closed
    HINT:
    One of the 2 grooves located on the cam journal is for retarding cam timing (upper) and the other is for advancing cam timing (lower). Each groove has 2 oil paths. Plug one of the oil paths for each groove with a piece rubber before wrapping the cam journal with the tape.
  1. Puncture the tape covering the advance oil path and the retard oil path on the opposite side from the advance oil path.



    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Apply compressed air at about 150 kPa (1.5 kgf/cm2) pressure into the 2 broken paths (the advance side path and the retard side path).

    Text in Illustration
    *a
    Retard Side Paths
    *b
    Advance Side Paths
    NOTICE:
    Cover the paths with a piece of cloth to prevent oil splashes.


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Confirm that the camshaft timing gear revolves in the timing advance direction when the air pressure on the timing retard path is reduced.

    Text in Illustration
    *a
    Retard Side Paths
    *b
    Advance Side Paths
    *c
    Decompress
    *d
    Hold Pressure
    HINT:
    The lock pin is released and the camshaft timing gear revolves in the advance direction.
  1. When the camshaft timing gear reaches the most advanced position, release the air pressure on the timing retard side path, and then release the air pressure on the timing advance side path.

    NOTICE:
    Camshaft timing gear occasionally shifts to the retard side abruptly if the air pressure on the advance side path is released first. It often results in the breakage of the lock pin.


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Remove the bolt and the camshaft timing gear.

    Text in Illustration
    *a
    Do not remove
    NOTICE:
    1. Do not remove the other 4 bolts.
    2. When reusing the camshaft timing gear, unlock the lock pin inside the camshaft timing gear first.


33. REMOVE CYLINDER HEAD SUB-ASSEMBLY


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using several steps, loosen and remove the 10 cylinder head bolts uniformly with an 8 mm (0.31 in.) bi-hexagon wrench in the sequence shown in the illustration. Remove the 10 cylinder head bolts and the plate washers.

    NOTICE:
    1. Do not drop the washers into the cylinder head.
    2. Head warpage or cracking could result from removing bolts in the wrong order.
  1. Using a screwdriver with its tip wrapped with protective tape, pry between the cylinder head and cylinder block, and remove the cylinder head.

    NOTICE:
    Be careful not to damage the contact surfaces of the cylinder head and cylinder block.


34. REMOVE CYLINDER HEAD GASKET


35. REMOVE OIL FILTER SUB-ASSEMBLY


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using SST, remove the oil filter.

    SST
    09228-06501


36. REMOVE OIL FILTER UNION


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using a 12 mm hexagon wrench, remove the oil filter union.



37. REMOVE REAR ENGINE OIL SEAL


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using a knife, cut off the rear engine oil seal lip.

    Text in Illustration
    *1
    Protective Tape
  1. Using a screwdriver with its tip wrapped in protective tape, pry out the rear engine oil seal.

    NOTICE:
    After removal, check the crankshaft for any damage. If damaged, smooth the surface with 400-grit sandpaper.


38. REMOVE NO. 2 OIL PAN SUB-ASSEMBLY
  1. Remove the drain plug and gasket.



    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Remove the 9 bolts and 2 nuts.



    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Insert the blade of oil pan seal cutter between the No. 1 oil pan and No. 2 oil pan, and cut off the applied sealer and remove No. 2 oil pan.

    NOTICE:
    Be careful not to damage the contact surfaces of the oil pan.


39. REMOVE OIL STRAINER SUB-ASSEMBLY
  1. Remove the bolt and 2 nuts.

  1. Remove the oil strainer and the gasket.



40. REMOVE OIL PAN SUB-ASSEMBLY


    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Loosen and remove the 13 bolts uniformly in several steps.



    Yaris. Ncp93, 131.1Nz-Fe Engine Mechanical.Engine (For Sedan).Engine Unit (For Hatchback)  Disassembly
  1. Using a screwdriver, remove the No. 1 oil pan by prying between the cylinder block and No. 1 oil pan.

    NOTICE:
    Be careful not to damage the contact surfaces of the oil pan.
  1. Remove the 2 O-rings from the cylinder block.



41. REMOVE STUD BOLT


Yaris. Ncp93, 131
  1. Using "TORX" socket wrench E5, remove the 4 stud bolts.