ENGINE UNIT INSPECTION


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


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

      If the roller does not turn smoothly, replace the valve rocker arm.

  2. INSPECT VALVE LASH ADJUSTER ASSEMBLY

    Note


    • Keep the adjuster free from dirt and foreign objects.

    • Use only clean engine oil.


    1. A01GLH0E01

      Place the lash adjuster into a container full of new engine oil.

    2. Insert SST's tip into the lash adjuster's plunger and use the tip to press down on the check ball inside the plunger.

      SST
      09276-75010

    3. Squeeze SST and the lash adjuster together to move the plunger up and down 5 to 6 times.

    4. Check the movement of the plunger and bleed air.

      OK
      Plunger moves up and down.

      Note

      When bleeding high-pressure air from the compression chamber, make sure that the tip of SST is actually pressing the check ball as shown in the illustration. If the check ball is not pressed, air will not bleed.

    5. After bleeding the air, remove SST. Then try to quickly and firmly press the plunger with your fingers.

      OK
      Plunger can be pressed 3 times.

      If the plunger can still be compressed after pressing it 3 times, replace the hydraulic lash adjuster with a new one.

  3. INSPECT CYLINDER HEAD SET BOLT


    1. A01GL8RE07

      Using a vernier caliper, measure the minimum diameter of the elongated thread at the measuring point.

      Standard outside diameter
      10.85 to 11.00 mm (0.427 to 0.433 in.)
      Minimum outside diameter
      10.6 mm (0.417 in.)
      Measuring point
      90 mm (3.573 in.) for intake side bolt
      85 mm (3.376 in.) for exhaust side bolt

      Tech Tips


      • If a visual check reveals no excessively thin areas, check the center of the bolt (see illustration) and find the area that has the lowest diameter.

      • If the diameter is less than the minimum, replace the cylinder head bolt.

  4. INSPECT CAMSHAFT


    1. Inspect the bank 1 camshaft Click here.

    2. Inspect the bank 2 camshaft Click here.

  5. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY


    1. Inspect the bank 1 camshaft timing gear Click here.

    2. Inspect the bank 2 camshaft timing gear Click here.

  6. INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY


    1. Inspect the bank 1 camshaft timing exhaust gear Click here.

    2. Inspect the bank 2 camshaft timing exhaust gear Click here.

  7. INSPECT CHAIN SUB-ASSEMBLY


    1. A01GL26E02

      Using a spring scale, pull the chain with a force of 147 N (15 kgf, 33 lbf) as shown the illustration.

    2. Using a vernier caliper, measure the length of 15 pins.

      Maximum chain elongation
      136.9 mm (5.389 in.)

      If the elongation is greater than the maximum, replace the chain.

      Note

      Perform the measurement at 3 random places.

  8. INSPECT NO. 2 CHAIN SUB-ASSEMBLY


    1. A01GL26E03

      Using a spring scale, pull the chain with a force of 147 N (15 kgf, 33 lbf) as shown the illustration.

    2. Using a vernier caliper, measure the length of 15 pins.

      Maximum chain elongation
      137.6 mm (5.417 in.)

      If the elongation is greater than the maximum, replace the chain.

      Note

      Perform the measurement at 3 random places.

  9. INSPECT CRANKSHAFT TIMING SPROCKET


    1. A01GKE9

      Wrap the chain around the sprocket.

    2. Using a vernier caliper, measure the sprocket diameter with the chain.

      Minimum sprocket diameter (w/ chain)
      61.4 mm (2.417 in.)

      Tech Tips


      • The vernier caliper must contact the chain rollers for the measurement.

      • If the diameter is less than the minimum, replace the chain and sprocket.

  10. INSPECT CRANKSHAFT TIMING SPROCKET LH


    1. A01GJ2L

      Wrap the chain around the sprocket.

    2. Using a vernier caliper, measure the sprocket diameter with the chain.

      Minimum sprocket diameter (w/ chain)
      61.4 mm (2.417 in.)

      Tech Tips


      • The vernier caliper must contact the chain rollers for the measurement.

      • If the diameter is less than the minimum, replace the chain and sprocket.

  11. INSPECT NO. 1 CHAIN TENSIONER ASSEMBLY


    1. A01GNKEE01

      Move the stopper plate upward to release the lock. Push the plunger and check that it moves smoothly.

      If necessary, replace the chain tensioner.

  12. INSPECT NO. 2 CHAIN TENSIONER ASSEMBLY


    1. A01GNTCE01

      Check that the plunger moves smoothly.

    2. Measure the worn depth of the chain tensioner.

      Maximum depth
      0.9 mm (0.035 in.)

      If the depth is greater than the maximum, replace the chain tensioner.

  13. INSPECT NO. 3 CHAIN TENSIONER ASSEMBLY


    1. A01GHVCE03

      Check that the plunger moves smoothly.

    2. Measure the worn depth of the chain tensioner.

      Maximum depth
      0.9 mm (0.035 in.)

      If the depth is greater than the maximum, replace the chain tensioner.

  14. INSPECT CHAIN TENSIONER SLIPPER


    1. A01GKXQE01

      for Bank 1:


      1. Measure the worn depth of the chain tensioner slipper.

        Maximum depth
        1.0 mm (0.039 in.)

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

    2. A01GMAYE01

      for Bank 2:


      1. Measure the worn depth of the chain tensioner slipper.

        Maximum depth
        1.0 mm (0.039 in.)

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

  15. INSPECT NO. 1 CHAIN VIBRATION DAMPER


    1. A01GL7TE01

      for Bank 1:


      1. Measure the worn depth of the chain vibration damper.

        Maximum depth
        1.0 mm (0.039 in.)

        If the depth is greater than the maximum, replace the chain vibration damper.

    2. A01GINUE01

      for Bank 2:


      1. Measure the worn depth of the chain vibration damper.

        Maximum depth
        1.0 mm (0.039 in.)

        If the depth is greater than the maximum, replace the chain vibration damper.

  16. INSPECT CYLINDER HEAD SUB-ASSEMBLY


    1. A01GNBBE02

      Using a precision straightedge and feeler gauge, measure the warpage of the contact surfaces of the cylinder block and manifold.

      Standard warpage
      Item Specified Condition
      Cylinder head lower side 0.05 mm (0.0020 in.)
      Intake side 0.08 mm (0.0031 in.)
      Exhaust side 0.05 mm (0.0020 in.)
      Maximum warpage
      0.10 mm (0.0039 in.)

      If the warpage is greater than the maximum, replace the cylinder head.

    2. A01GLKS

      Using a dye penetrant, check the intake ports, exhaust ports and cylinder surface for cracks.

      If cracked, replace the cylinder head.

  17. INSPECT CAMSHAFT OIL CLEARANCE


    1. Inspect the bank 1 camshaft oil clearance Click here.

    2. Inspect the bank 2 camshaft oil clearance Click here.