Impreza WRX STI F4-2.5L Turbo (2008)
16) Make sure that the belt ribs are properly riding on the grooves of the pulleys, and turn the crank pulley slowly to the right twice to break in the rear
side belt.
17) Discard the provided tools (belt stopper, belt guide, belt guide holder, bolt).
18) Install the front side belt.
INSPECTION
FRONT SIDE BELT
1) Replace the front side belt, if cracking, fraying or wear is found.
2) Check the front side belt tension and adjust it if necessary by changing the generator installing position.
Front side belt tension (when using a belt tension gauge):
When installing new parts 640 - 780 N (65 - 80 kgf, 144 - 175 lbs.)
At inspection 490 - 640 N (50 - 65 kgf, 110 - 144 lbs.)
