Toyota RAV4 2000-05

Valve Lash (Clearance) Adjustment 2

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3.4L Engine



  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Drain the engine coolant.
  6.  
  7. Remove or disconnect the following:

    Air intake connector
     
    Cylinder head cover

    Click image to see an enlarged view

    Fig. Aligning the timing marks-3.4L engine

     

  8.  
  9. Set the No. 1 cylinder to Top Dead Center (TDC) of the compression stroke, as follows:
    1. Turn the crankshaft pulley clockwise and align its groove with the 0 mark on the timing chain cover.
    2.  
    3. Check that the timing marks (1 and 2 dots) of the camshaft drive and driven gears are in a straight line on the cylinder head surface. If not, turn the crankshaft 1 revolution (360 degrees) and align the marks.

      Click image to see an enlarged view

      Fig. First valve adjustment-3.4L engine



      Click image to see an enlarged view

      Fig. Second valve adjustment-3.4L engine



      Click image to see an enlarged view

      Fig. Third valve adjustment-3.4L engine

    4.  

  10.  
  11. Inspect the valve clearance, as follows:
    1. Measure the clearance between the valve lifter and the camshaft. Measure the 1st intake and the 3rd exhaust valves on the right head and the 6th intake and the 2nd exhaust valves on the left head.
    2.  
    3. Turn the crankshaft 2 / 3 of a revolution (240 degrees) and adjust the 3rd intake and the 5th exhaust valves on the right head and the 2nd intake and the 4th exhaust valves on the left head.
    4.  
    5. Turn the crankshaft 2 / 3 of a revolution (240 degrees) and adjust the 5th intake and the 1st exhaust valves on the right head and the 4th intake and the 6th exhaust valves on the left head.
    6.  

  12.  
  13. Valve clearance cold should be:

    Intake: 0.006-0.009 in. (0.13-0.23mm)
     
    Exhaust: 0.011-0.014 in. (0.27-0.37mm)

    Click image to see an enlarged view

    Fig. Removing the adjusting shim-3.4L engine

     

  14.  
  15. Adjust the valve clearance by using adjusting shims, as follows:
    1. Turn the equipment camshaft so that the cam lobe for the valve to be adjusted faces up.
    2.  
    3. Turn the valve lifter so that the notches are perpendicular to the camshaft.
    4.  
    5. Using SST 09248-55040, press down the valve lifter and place SST 09248-05420, between the camshaft and the valve lifter. Remove SST 09248-55040.
    6.  
    7. Remove the adjusting shim with a small flat prying tool and a magnetic finger.
    8.  
    9. Determine the replacement adjusting shim size according to the following formula or use the adjusting shim charts.
    10.  
    11. Using a micrometer, measure the thickness of the removed shim. Calculate the thickness of a new shim so that the valve clearance comes within the specified value.

      T: Thickness of the removed shim
       
      A: Measured valve clearance
       
      N: Thickness of the new shim
       

    12.  
    13. Intake: N = T + (A-0.007 in. (0.18mm))
    14.  
    15. Exhaust: N = T + (A-0.013 in. (0.32mm))
    16.  
    17. Install a new adjusting shim. Place it on the valve lifter. Using the SST 09248-55040, press down the valve lifter and remove SST 09248-05420.
    18.  
    19. Recheck the valve clearance.
    20.  

  16.  
  17. Install or connect the following:

    Cylinder head cover
     
    Intake air connector
     
    Negative battery cable
     

  18.  
  19. Refill with engine coolant.
  20.  
  21. Start the engine and check for leaks.
  22.  

 
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