Sienna AWD V6-3.3L (3MZ-FE) (2004)
3. Check that timing marks of the camshaft timing pulleys and No. 3 timing belt cover are aligned.
If not, turn the crankshaft 1 revolution (360°).
4. Remove the crankshaft pulley bolt.
b. If re-using the timing belt, check that there are 3 installation marks on the timing belt as shown in the illustration.
1. If the installation marks have disappeared, put new installation mark on the timing belt before removing.
c. Set No. 1 cylinder to approximately 60° BTDC/compression.
1. Turn the crankshaft counterclockwise by approximately 60°.
NOTICE: If the timing belt is disengaged, having the crankshaft pulley at the wrong angle can cause the piston head and valve head to
come into contact with each other when you remove the camshaft timing pulley and camshaft, causing damage. So always set the
crankshaft pulley at the correct angle.
d. Remove the timing belt tensioner.
NOTICE: Do not install the tensioner as it removed.