In the pictures above: first on is for a Single Overhead Cam engine. On the tensioner, #1, you can use a 3/8" rachet from above to rotate it clockwise to loosen the belt. In the lower picture, the DOHC engine, it is easier if you go from the bottom by raising the car and removing a few screws from the plastic covers and place a 13mm wrench on the tensioner, #5, and rotate clockwise to loosen the belt. Route the belt from #1 to #2 and be a pain because of the motor mount but it can be done.
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In the pictures above: first on is for a Single Overhead Cam engine. On the tensioner, #1, you can use a 3/8" rachet from above to rotate it clockwise to loosen the belt.
In the lower picture, the DOHC engine, it is easier if you go from the bottom by raising the car and removing a few screws from the plastic covers and place a 13mm wrench on the tensioner, #5, and rotate clockwise to loosen the belt. Route the belt from #1 to #2 and be a pain because of the motor mount but it can be done.
Here are two diagrams