Toyota Avalon, Camry, Camry Solara 2001-06

Camshaft, Bearings & Lifters 2

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Removal & Installation



5S-FE Engines


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Fig. Intake camshaft removal and installation positioning-2.2L (5S-FE) engine



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Fig. Exhaust camshaft removal and installation positioning-2.2L (5S-FE) engine

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable. On vehicles equipped with an air bag, wait at least 90 seconds before proceeding.
     
    Spark plug wires
     
    Timing belt, gears, and the covers
     
    Any wire connectors, clamps, cables, or components necessary in order to remove the cylinder head cover.
     
    Cylinder head cover and gasket
     

  4.  
  5. Set the No. 1 cylinder to TDC. Turn the crankshaft pulley and align its groove with the timing mark0
  6.  


NOTE
Since the thrust clearance on both the intake and exhaust camshafts is small, the camshafts must be kept level during removal. If the camshafts are removed without being kept level, the camshaft may damage the bearing surface, causing the camshaft to seize during engine operation.

  1. Remove exhaust camshaft as follows:
    1. Set the knock pin of the intake camshaft at 10-45 degrees BTDC of camshaft angle on the cylinder head. This angle will help to lift the exhaust camshaft level and evenly by pushing the No. 2 and No. 4 cylinder camshaft lobes of the exhaust camshaft toward their valve lifters.
    2.  
    3. Secure the exhaust camshaft sub-gear to the main gear using a service bolt. The manufacturer recommends a bolt 0.63-0.79 in. (16-20mm) long with a thread diameter of 6mm and a 1mm thread pitch. When removing the exhaust camshaft, be sure that the torsional spring force of the sub-gear has been eliminated.
    4.  
    5. Remove the No. 1 and No. 2 rear bearing cap bolts and remove the cap. Uniformly loosen and remove the bearing cap bolts on the No. 1, No. 2, and No. 4 bearing caps in several passes and in the reverse order of the installation sequence. Do not remove bearing cap bolts to No. 3 bearing cap at this time. Remove the No. 1, 2, and 4 bearing caps.
    6.  
    7. Alternately loosen and remove the bearing cap bolts on the No. 3 bearing cap. As these bolts are loosened check to see that the camshaft is being lifted out straight and level.
    8.  

  2.  


NOTE
If the camshaft is not lifted out straight and level, tighten the No. 3 bearing cap bolts. Reverse the order of Steps 7c through 7a and reset the intake camshaft knock pin to 10-45 degrees BTDC, then repeat Steps 7a through 7c. Do not attempt to pry the camshaft from its mounting.

  1. Remove the No. 3 bearing cap and exhaust camshaft from the engine.
  2.  

  1. Remove intake camshaft as follows:
    1. Set the knock pin of the intake camshaft at 80-115 degrees BTDC of the camshaft angle on the cylinder head. This angle will help to lift the intake camshaft level and evenly by pushing No. 1 and No. 3 cylinder camshaft lobes of the intake camshaft toward their valve lifters.
    2.  
    3. Remove the 2 front bearing cap bolts and remove the front bearing cap and oil seal. If the cap will not come apart easily, leave it in place without the bolts.
    4.  
    5. Uniformly loosen and remove the bearing cap bolts to No. 1, No. 3, and the No. 4 bearing caps in several phases and in the reverse order of the installation sequence. Do not remove bearing cap bolts to the No. 2 bearing cap at this time. Remove No. 1, 3, and 4 bearing caps.
    6.  
    7. Alternately loosen and remove bearing cap bolts to the No. 2 bearing cap. As these bolts are loosened and after breaking the adhesion on the front bearing cap, check to see that the camshaft is being lifted out straight and level.
    8.  

  2.  


NOTE
If the camshaft is not lifting out straight and level tighten the No. 2 bearing cap bolts. Reverse Steps 8b through 8d, then start over from Step 8b. Do not attempt to pry the camshaft from its mounting.

  1. Remove the No. 2 bearing cap with the intake camshaft from the engine.
  2.  

  1. Remove the valve lifter shims and hydraulic lifters. Identify each lifter and shim as it is removed so it can be reinstalled in the same position. If the lifters are to be reused, store them upside down in a sealed container.
  2.  

To install:

  1. Install the valve lifters into their original positions and shims.
  2.  


NOTE
Before installing the intake camshaft, apply multi-purpose grease to the camshaft.

  1. Install the intake camshaft, as follows:
    1. Position the camshaft at 80-115 degrees BTDC of camshaft angle on the cylinder head.
    2.  
    3. Apply sealant to the front bearing cap.
    4.  
    5. Coat the bearing cap bolts with clean engine oil.
    6.  
    7. Tighten the camshaft bearing caps evenly in sequence and in several passes to 14 ft. lbs. (19 Nm).
    8.  
    9. Apply MP grease to a new oil seal lip, and by using a suitable tool, tap a new oil seal into place.
    10.  



    Click image to see an enlarged view

    Fig. Intake camshaft bearing cap bolt tightening sequence-2.2L (5S-FE) engine



    Click image to see an enlarged view

    Fig. Exhaust camshaft bearing cap bolt tightening sequence-2.2L (5S-FE) engine



    Exhaust camshaft as follows:
     
    Set the knock pin of the camshaft at 10-45 degrees BTDC of camshaft angle on the cylinder head.
     
    Apply multipurpose grease to the camshaft.
     
    Position the exhaust camshaft gear with the intake camshaft gear so that the timing marks are in alignment with one another. Be sure to use the proper alignment marks on the gears. Do not use the assembly reference marks.
     
    Turn the intake camshaft clockwise or counterclockwise little by little until the exhaust camshaft sits in the bearing journals evenly without rocking the camshaft on the bearing journals.
     
    Coat the bearing cap bolts with clean engine oil.
     
    Tighten the camshaft bearing caps evenly in sequence and in several passes to 14 ft. lbs. (19 Nm). Remove the service bolt from the assembly.
     

  2.  
  3. Check and adjust valve clearance.
  4.  
  5. Install or connect the following:
    1. Cylinder head cover
    2.  
    3. Timing belt and related components.
    4.  
    5. Electrical connectors, cables, brackets, and components attached to the cylinder head cover.
    6.  
    7. Spark plug wires
    8.  
    9. Negative battery cable
    10.  

  6.  

 
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