БЛОК ДВИГАТЕЛЯ (для моделей без контроллера свечей накаливания) ПРОВЕРКА

PROCEDURE


  1. INSPECT OIL CHECK VALVE SUB-ASSEMBLY

    A00Y9AOC04
    *a Ball

    1. Push the ball of the oil check valve sub-assembly to check if it is stuck.

      If the check valve is stuck, replace the oil check valve sub-assembly.

  2. INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY


    1. A00Y4Y0

      Turn the roller by hand to check that it turns smoothly.

      If the roller does not turn smoothly, replace the No. 1 valve rocker arm sub-assembly.

  3. INSPECT CHAIN SUB-ASSEMBLY


    1. A00Y9S0C03
      *a Measurement Area

      Using a spring scale, apply 140 N (14 kgf, 31.5 lbf) to the chain sub-assembly then measure its length.

      Maximum chain length
      156.5 mm (6.161 in.)

      Tech Tips

      Measure the length in at least 3 places and calculate the average length.

      If the length is greater than the maximum, replace the chain sub-assembly.

  4. INSPECT NO. 2 CHAIN SUB-ASSEMBLY


    1. A00Y9S0C03
      *a Measurement Area

      Using a spring scale, apply 140 N (14 kgf, 31.5 lbf) to the No. 2 chain sub-assembly then measure its length.

      Maximum chain length
      116.5 mm (4.586 in.)

      Tech Tips

      Measure the length in at least 3 places and calculate the average length.

      If the length is greater than the maximum, replace the No. 2 chain sub-assembly.

  5. INSPECT NO. 1 CHAIN TENSIONER ASSEMBLY


    1. A00Y7ZP

      Check that the plunger moves smoothly.

  6. INSPECT CAMSHAFT TIMING SPROCKET


    1. A00YADG

      Place the chain sub-assembly around the camshaft timing sprocket.

    2. Using a vernier caliper, measure the diameter of the camshaft timing sprocket including the chain sub-assembly.

      Minimum sprocket diameter (w/ chain)
      132.5 mm (5.216 in.)

      Note

      The vernier caliper must be in contact with the chain sub-assembly rollers when measuring.

      If the diameter is less than the minimum, replace the camshaft timing sprocket.

  7. INSPECT CRANKSHAFT TIMING SPROCKET


    1. A00Y5VY

      Place the chain sub-assembly around the crankshaft timing sprocket.

    2. Using a vernier caliper, measure the diameter of the crankshaft timing sprocket including the chain sub-assembly.

      Minimum sprocket diameter (w/ chain)
      69.0 mm (2.716 in.)

      Note

      The vernier caliper must be in contact with the chain sub-assembly rollers when measuring.

      If the diameter is less than the minimum, replace the crankshaft timing sprocket.

  8. INSPECT OIL PUMP DRIVE GEAR


    1. A00Y91D

      Place the No. 2 chain sub-assembly around the oil pump drive gear.

    2. Using a vernier caliper, measure the diameter of the oil pump drive gear including the No. 2 chain sub-assembly.

      Minimum sprocket diameter (w/ chain)
      57.6 mm (2.267 in.)

      Note

      The vernier caliper must be in contact with the No. 2 chain sub-assembly rollers when measuring.

      If the diameter is less than the minimum, replace the oil pump drive gear.

  9. INSPECT OIL PUMP DRIVE SHAFT GEAR


    1. A00YAV1

      Place the No. 2 chain sub-assembly around the oil pump drive shaft gear.

    2. Using a vernier caliper, measure the diameter of the oil pump drive shaft gear including the No. 2 chain sub-assembly.

      Minimum sprocket diameter (w/ chain)
      53.5 mm (2.106 in.)

      Note

      The vernier caliper must be in contact with the No. 2 chain sub-assembly rollers when measuring.

      If the diameter is less than the minimum, replace the oil pump drive shaft gear.

  10. INSPECT CHAIN TENSIONER SLIPPER


    1. A00Y8TOC03
      *a Wear

      Using a vernier caliper, measure the wear of the chain tensioner slipper.

      Maximum wear
      1.0 mm (0.0394 in.)

      If the wear is greater than the maximum, replace the chain tensioner slipper.

  11. INSPECT NO. 1 CHAIN VIBRATION DAMPER


    1. A00Y819C03
      *a Wear

      Using a vernier caliper, measure the wear of the No. 1 chain vibration damper.

      Maximum wear
      1.0 mm (0.0394 in.)

      If the wear is greater than the maximum, replace the No. 1 chain vibration damper.

  12. INSPECT CHAIN TENSIONER PLATE


    1. A00Y84DC03
      *a Wear

      Using a vernier caliper, measure the wear of the chain tensioner plate.

      Maximum wear
      1.0 mm (0.0394 in.)

      If the wear is greater than the maximum, replace the chain tensioner plate.

  13. INSPECT CAMSHAFT


    1. A00YADL

      Inspect the runout.


      1. Place the camshaft on V-blocks.

      2. Using a dial indicator, measure the runout of the camshaft at the center journal.

        Maximum runout
        0.03 mm (0.00118 in.)

        If the runout is greater than the maximum, replace the camshaft.

    2. A00Y8O0

      Inspect the height of the cam lobes.


      1. Using a micrometer, measure the cam lobe height.

        Standard cam lobe height
        Intake
        34.484 to 34.584 mm (1.3576 to 1.3616 in.)
        Exhaust
        34.773 to 34.873 mm (1.3690 to 1.3730 in.)
        Minimum cam lobe height
        Intake
        34.064 mm (1.3411 in.)
        Exhaust
        34.353 mm (1.3525 in.)

        If the cam lobe height is less than the minimum, replace the camshaft.

    3. A00Y7KM

      Inspect the diameter of the cam journals.


      1. Using a micrometer, measure the cam journal diameter.

        Standard cam journal diameter
        23.979 to 23.995 mm (0.9441 to 0.9447 in.)

        If the cam journal diameter is not as specified, check the oil clearance.

  14. INSPECT CYLINDER HEAD SET BOLT


    1. A00Y8GVC06
      *a Measurement Point

      Using a vernier caliper, measure the diameter of the threads at the measurement point.

      Standard diameter
      11.5 to 12.0 mm (0.453 to 0.472 in.)
      Minimum diameter
      11.2 mm (0.441 in.)
      Measurement point (distance from the seat)
      123 mm (4.84 in.)

      If the diameter is less than the minimum, replace the cylinder head set bolt. Failure to do so may lead to engine damage.

      If there is any thread deformation, replace the cylinder head set bolt with a new one.

  15. INSPECT EXHAUST MANIFOLD


    1. A00Y798

      Using a precision straightedge and feeler gauge, measure the warpage of the surface that contacts the cylinder head sub-assembly.

      Maximum warpage
      0.7 mm (0.0276 in.)

      If the warpage is more than the maximum, replace the exhaust manifold.