БЛОК ДВИГАТЕЛЯ ПРОВЕРКА

PROCEDURE


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


    1. A01M023

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

      Tech Tips

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

  2. INSPECT VALVE LASH ADJUSTER ASSEMBLY

    Note


    • Keep the valve lash adjuster assembly free from dirt and foreign matter.

    • Only use clean engine oil.


    1. Place the valve lash adjuster assembly into a container filled with engine oil.

    2. Insert the tip of SST into the valve lash adjuster assembly plunger and use the tip to press down on the check ball inside the plunger.

      A01LZ4PC19
      *a Correct *b Incorrect
      *c Taper *d Low Pressure Chamber
      *e High Pressure Chamber *f Plunger
      *g Check Ball - -
      SST
      09276-75010
    3. Squeeze SST and the valve lash adjuster assembly together to move the plunger up and down 5 to 6 times.

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

      OK
      Plunger moves up and down.

      Note

      When bleeding the air from the high-pressure 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 by hand.

      OK
      Plunger is very difficult to move.

      Tech Tips

      If the plunger is easy to move, replace the valve lash adjuster assembly.

  3. INSPECT CHAIN SUB-ASSEMBLY


    1. A01M2YWC14
      *a Measurement Length

      Using a spring scale, pull the chain sub-assembly with a force of 147 N (15 kgf, 33.0 lbf) as shown in the illustration.

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

      Maximum Chain Elongation
      121.6 mm (4.79 in.)

      Note

      Perform the measurement at 3 random places. Use the average of the measurements.

      Tech Tips

      If the average elongation is more than the maximum, replace the chain sub-assembly.

  4. INSPECT NO. 2 CHAIN SUB-ASSEMBLY


    1. A01M2YWC15
      *a Measurement Length

      Using a spring scale, pull the No. 2 chain sub-assembly with a force of 147 N (15 kgf, 33.0 lbf) as shown in the illustration.

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

      Maximum Chain Elongation
      107.0 mm (4.21 in.)

      Note

      Perform the measurement at 3 random places. Use the average of the measurements.

      Tech Tips

      If the average elongation is more than the maximum, replace the No. 2 chain sub-assembly.

  5. INSPECT NO. 1 CHAIN TENSIONER ASSEMBLY


    1. A01LV2MC01
      *a Raise
      *b Move
      *c Lock

      Check that the plunger moves smoothly when the cam is raised with your finger.

    2. Release the cam, then check that the plunger is locked in place by the cam and does not move when pushed with your finger.

      Tech Tips

      If the plunger does not move smoothly, replace the No. 1 chain tensioner assembly.

  6. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY


    1. A01LZZP

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

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

      Minimum Gear Diameter (with Chain Sub-assembly)
      100.89 mm (3.97 in.)

      Note

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

      Tech Tips

      If the diameter is less than the minimum, replace the chain sub-assembly and camshaft timing gear assembly.

  7. INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY


    1. A01LV01

      Place the chain sub-assembly around the camshaft timing exhaust gear assembly.

    2. Using a vernier caliper, measure the diameter of the camshaft timing exhaust gear assembly and chain sub-assembly.

      Minimum Gear Diameter (with Chain Sub-assembly)
      100.89 mm (3.97 in.)

      Note

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

      Tech Tips

      If the diameter is less than the minimum, replace the chain sub-assembly and camshaft timing exhaust gear assembly.

  8. INSPECT OIL PUMP DRIVE GEAR


    1. A01LYTS

      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 and No. 2 chain sub-assembly.

      Minimum Gear Diameter (with No. 2 Chain Sub-assembly)
      52.55 mm (2.07 in.)

      Note

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

      Tech Tips

      If the diameter is less than the minimum, replace the No. 2 chain sub-assembly and oil pump drive gear.

  9. INSPECT OIL PUMP DRIVE SHAFT GEAR


    1. A01M0Z3

      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 and No. 2 chain sub-assembly.

      Minimum Gear Diameter (with No. 2 Chain Sub-assembly)
      59.21 mm (2.33 in.)

      Note

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

      Tech Tips

      If the diameter is less than the minimum, replace the No. 2 chain sub-assembly and oil pump drive shaft gear.

  10. INSPECT CRANKSHAFT TIMING SPROCKET


    1. A01LXP8

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

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

      Minimum Gear Diameter (with Chain Sub-assembly)
      55.17 mm (2.17 in.)

      Note

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

      Tech Tips

      If the diameter is less than the minimum, replace the chain sub-assembly and crankshaft timing sprocket.

  11. INSPECT CHAIN TENSIONER SLIPPER


    1. A01LZEFC01
      *a Depth

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

      Maximum Depth
      1.0 mm (0.0394 in.)

      Tech Tips

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

  12. INSPECT TIMING CHAIN GUIDE


    1. A01LVK2C01
      *a Depth

      Using a vernier caliper, measure the wear depth of the timing chain guide.

      Maximum Depth
      1.0 mm (0.0394 in.)

      Tech Tips

      If the depth is more than the maximum, replace the timing chain guide.

  13. INSPECT CHAIN TENSIONER PLATE


    1. A01LZOAC01
      *a Depth

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

      Maximum Depth
      0.5 mm (0.0197 in.)

      Tech Tips

      If the depth is more than the maximum, replace the chain tensioner plate.

  14. INSPECT CYLINDER HEAD SET BOLT


    1. A01LVY0C01
      *a Measurement Area
      *b 115 mm (4.53 in.)

      Using a vernier caliper, measure the diameter of the threads at several points within the area shown in the illustration.

      Standard Diameter
      10.85 to 11.00 mm (0.427 to 0.433 in.)
      Minimum Diameter
      10.6 mm (0.417 in.)

      Note


      • Diameter measurements should be done at several points.

      • If the diameter is less than the minimum, replace the cylinder head set bolt with a new one. 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 CAMSHAFT


    1. Inspect the camshaft for runout.


      1. A01M049

        Place the camshaft on V-blocks.

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

        Maximum Runout
        0.04 mm (0.00157 in.)

        Tech Tips

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

    2. Inspect the cam lobes.


      1. A01LXBT

        Using a micrometer, measure the cam lobe height.

        Standard Cam Lobe Height
        41.699 to 41.799 mm (1.64169 to 1.64563 in.)
        Minimum Cam Lobe Height
        41.649 mm (1.63972 in.)

        Tech Tips

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

    3. Inspect the camshaft journals.


      1. A01M3A2

        Using a micrometer, measure the journal diameter.

        Standard Journal Diameter
        Item Specified Condition
        No. 1 journal 34.449 to 34.465 mm (1.35626 to 1.35689 in.)
        Other journals 22.954 to 22.970 mm (0.90370 to 0.90433 in.)

        Tech Tips

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

  16. INSPECT NO. 2 CAMSHAFT


    1. Inspect the No. 2 camshaft for runout.


      1. A01LVNW

        Place the No. 2 camshaft on V-blocks.

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

        Maximum Runout
        0.04 mm (0.00157 in.)

        Tech Tips

        If the runout is more than the maximum, replace the No. 2 camshaft.

    2. Inspect the cam lobes.


      1. A01LYM7

        Using a micrometer, measure the cam lobe height.

        Standard Cam Lobe Height
        Item Specified Condition
        except Fuel Pump Assembly 40.481 to 40.581 mm (1.59374 to 1.59767 in.)
        for Fuel Pump Assembly 39.550 to 39.650 mm (1.55708 to 1.56102 in.)
        Minimum Cam Lobe Height
        Item Specified Condition
        except Fuel Pump Assembly 40.431 mm (1.59177 in.)
        for Fuel Pump Assembly 39.500 mm (1.55512 in.)

        Tech Tips

        If the cam lobe height is less than the minimum, replace the No. 2 camshaft.

    3. Inspect the No. 2 camshaft journals.


      1. A01M0K1

        Using a micrometer, measure the journal diameter.

        Standard Journal Diameter
        Item Specified Condition
        No. 1 journal 34.449 to 34.465 mm (1.35626 to 1.35689 in.)
        Other journal 22.954 to 22.970 mm (0.90370 to 0.90433 in.)

        Tech Tips

        If the journal diameter is not as specified, check the No. 2 camshaft oil clearance.

  17. INSPECT CAMSHAFT THRUST CLEARANCE


    1. Clean the camshaft, No. 2 camshaft and camshaft bearing caps.

    2. Place the camshaft and No. 2 camshaft on the camshaft housing sub-assembly.

    3. Install the camshaft housing sub-assembly.

      Click here

    4. Install the camshaft bearing caps.

      Click here

    5. A01M11L

      Using a dial indicator, measure the thrust clearance while moving the camshaft and No. 2 camshaft back and forth.

      Standard Thrust Clearance
      0.06 to 0.20 mm (0.00236 to 0.00787 in.)
      Maximum Thrust Clearance
      0.25 mm (0.00984 in.)

      Tech Tips

      If the thrust clearance is more than the maximum, replace the camshaft housing sub-assembly. If the thrust surface is damaged, replace the camshaft.

  18. INSPECT CAMSHAFT OIL CLEARANCE


    1. Clean the camshaft bearing caps and camshaft journals.

    2. Place the camshaft and No. 2 camshaft on the camshaft housing sub-assembly.

    3. A01M1PJC01
      *a Plastigage

      Lay a strip of Plastigage across each of the camshaft journals.

    4. Install the camshaft bearing caps.

      Click here

      Note

      Do not turn the camshaft.

    5. Remove the camshaft bearing caps.

      Click here

    6. A01LXPRC01
      *a Plastigage

      Measure the Plastigage at its widest point.

      Standard Oil Clearance
      Item Specified Condition
      No. 1 journal 0.030 to 0.067 mm (0.00118 to 0.00264 in.)
      Other journals 0.030 to 0.067 mm (0.00118 to 0.00264 in.)
      Maximum Oil Clearance
      Item Specified Condition
      No. 1 journal 0.08 mm (0.00315 in.)
      Other journals 0.08 mm (0.00315 in.)

      Note

      Completely remove the Plastigage after the inspection.

      Tech Tips

      If the oil clearance is greater than the maximum, replace the camshaft. If necessary, replace the cylinder head sub-assembly.