Removing
Using a jack and a board, raise the engine.
Remove the front elements of the engine crankshaft pulley (5) water pump pulley (3); air conditioning compressor tensioner (4); upper toothed belt cover (2); toothed belt bottom cover (1).
Rotate the crankshaft clockwise until the #1 piston is at TDC on the compression stroke.
Align match marks (1), (2), (3), (4).
Alignment marks of a gear belt of the engine 4D68T
After loosening the tensioner bolt, move the tensioner away from the belt and tighten the bolt.
Remove the camshaft drive belt.
Installation
Align match marks (1), (2), (3), (4).
Install the camshaft drive toothed belt in the following sequence: crankshaft gear guide roller; camshaft gear; fuel pump gear; oil pump gear.