Toyota Avalon, Camry, Camry Solara 2001-06

Timing Belt

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Removal & Installation



1MZ-FE Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove all necessary components for access to the timing belt covers.
  4.  


CAUTION
If equipped with an air bag, be sure to disconnect the negative battery cable and wait at least 90 seconds before proceeding.

  1. Remove the lower timing belt cover by removing the four bolts.
  2.  
  3. Remove the No. 2 timing belt cover as follows:
    1. Remove the bolt and disconnect the engine wire protector from the No. 3 (rear) timing belt cover.
    2.  
    3. Disconnect the engine wire protector clamp from the No. 3 timing belt cover.
    4.  
    5. Remove the five bolts from the No. 2 timing belt cover.
    6.  
    7. Remove the No. 2 cover from the engine.
    8.  

  4.  
  5. Remove the right engine mounting bracket by removing the nut and two bolts.
  6.  
  7. Remove the crankshaft timing belt guide.
  8.  
  9. Temporarily install the crankshaft pulley bolt.
  10.  
  11. Turn the crankshaft and align the crankshaft timing pulley groove with the oil pump alignment mark. Always turn the engine clockwise.
  12.  
  13. Ensure the timing mark of the camshaft timing pulleys and rear timing belt covers are aligned. If not, turn the engine over an additional 360 degrees (one revolution).
  14.  
  15. Remove the crankshaft pulley bolt.
  16.  


NOTE
If the belt is to be reused, align the installation marks on the belt to the marks on the pulleys. If the marks have worn off, make new ones.

  1. Alternately loosen the two timing belt tensioner bolts. Remove the tensioner and dust boot.
  2.  
  3. Remove the timing belt.
  4.  


    Click image to see an enlarged view

    Fig. Camshaft and crankshaft timing belt sprocket alignment mark positioning for belt service-Toyota 3.0L (1MZ-FE) engine


To install:

  1. Remove any oil or water from the pulleys.
  2.  
  3. Align the front mark of the timing belt with the dot mark of the crankshaft timing pulley.
  4.  
  5. Align the installation marks on the timing belt with the timing marks of the camshaft pulleys.
  6.  
  7. Install the timing belt in the following order:
    1. Crankshaft pulley.
    2.  
    3. Water pump pulley.
    4.  
    5. Left camshaft pulley.
    6.  
    7. No. 2 idler pulley.
    8.  
    9. Right camshaft pulley.
    10.  
    11. No. 1 idler pulley.
    12.  

  8.  
  9. Using a press, slowly press the timing belt tensioner until the holes of the pushrod and housing align. Insert a 0.05 in. (1.27mm) hexagonal Allen wrench through the holes to preserve the setting position.
  10.  
  11. Install the dust boot to the tensioner.
  12.  
  13. Install the tensioner with the two bolts. Alternately tighten the bolts to 20 ft. lbs. (27 Nm). Remove the Allen wrench.
  14.  
  15. Turn the crankshaft clockwise and align the crankshaft timing pulley groove with the oil pump alignment mark.
  16.  
  17. Ensure the camshaft timing marks align with the timing marks on the rear timing belt cover.
  18.  
  19. Install the timing belt guide.
  20.  
  21. Install the right engine mounting bracket and tighten the bolts to 21 ft. lbs. (28 Nm).
  22.  
  23. Install the upper timing belt cover with the five bolts. Tighten the bolts to 74 inch lbs. (8 Nm).
  24.  
  25. Install the engine wire protector clamp to the No. 3 timing belt cover.
  26.  
  27. Install the engine wire protector to the No. 3 timing belt cover with the bolt.
  28.  
  29. Install the lower timing belt cover by installing the four bolts. Tighten the bolts to 74 inch lbs. (8 Nm).
  30.  
  31. Install the remaining components. During installation be sure to tighten the crankshaft pulley bolt to 159 ft. lbs. (215 Nm) and the No. 2 alternator bracket nut to 21 ft. lbs. (28 Nm).
  32.  

3mz-FE Engines
  1. Remove or disconnect the following:

    RH front fender apron seal
     
    A/C drive belt
     
    Engine stabilizing rod
     
    Engine mounting stay
     
    Alternator bracket
     
    Crankshaft pulley
     
    Upper and lower timing belt covers
     
    Engine mounting bracket (If necessary)
     

  2.  
  3. Remove the timing belt
    WARNING
    If the timing belt is disengaged, having the crankshaft pulley set at the wrong angle can cause contact of the piston with the valves, causing damage to the valves. Always set the crankshaft pulley at the correct angle.


    NOTE
    Do NOT reinstall the timing belt tensioner with the plunger extended.



    Click image to see an enlarged view

    Fig. Aligning crankshaft pulley-3.3L (3MZ-FE) engine



    Set the No 1 cylinder to TDC/compression
     
    Temporarily install the crankshaft pulley bolt
     
    Turn the crankshaft clockwise, the align the timing mark on the crankshaft timing pulley with the mark on the oil pump body
     
    Verify that the timing marks on the camshaft timing pulleys align with the timing marks on the inside timing belt cover. If not, turn the crankshaft on revolution (360 degrees).

    Click image to see an enlarged view

    Fig. Aligning camshaft pulleys-3.3L (3MZ-FE) engine

     
    If reusing the timing belt make certain there are 3 location marks on the timing belt corresponding with the marks on the timing gears.

    Click image to see an enlarged view

    Fig. Marking the timing belt for reuse-3.3L (3MZ-FE) engine

     
    Set the No 1 cylinder to approximately 60 degrees BTDC/compression. Turn the crankshaft counterclockwise by approximately 60 degrees.
     



    Remove timing belt tensioner
     

  4.  
  5. Remove the timing belt in the following order.

    No 1 idler pulley
     
    RH camshaft timing pulley
     
    No. 2 idler pulley
     
    LH camshaft timing pulley
     
    Water pump pulley
     
    Crankshaft timing pulley

    Click image to see an enlarged view

    Fig. Removal of timing belt from pulleys-3.3L (3MZ-FE) engine

     

  6.  
  7. Inspect the timing belt
    NOTE
    Do not reuse the timing belt if there is evidence of fraying, oil contamination, cracking, tooth damage or wear, or belt distortion. If there is any doubt in the belt condition, replace the belt.

  8.  

To install:

  1. After inspecting the pulleys for wear and checking for oil leaks install the timing belt using the following procedure.

    Temporarily install the crankshaft pulley bolt
     
    Make sure the crankshaft pulley is set at 60° BTDC
     
    Align the timing marks on the camshaft pulley with the respective marks on the inside timing cover.
     
    If reusing the old belt, align the marks previously made on the belt with the marks on the timing gears.
     
    Install the belt in the reverse order used when removing the belt
     

  2.  
  3. Install the timing belt tensioner using the following procedure
    NOTE
    Keep the tensioner in an upright position



    Slowly depress the push rod and align the hole with the hole in the housing
     
    Insert a 1.5 mm hexagon wrench through the holes to maintain the setting position of the push rod.
     
    Install the tensioner with the 2 bolts and torque to 20 ft. lbs (27 Nm).
     
    Remove the hexagon wrench
     

  4.  
  5. Slowly turn the crankshaft 2 revolutions clockwise.
  6.  
  7. Check to see that all timing marks are in alignment.
  8.  
  9. Remove the crankshaft bolt
  10.  
  11. Install the timing belt guide
  12.  
  13. The remainder of the installations is the reverse order of removal.
  14.  
  15. Start the engine and check for leaks.
  16.  

 
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