Turbo Model
- Remove the timing belt cover (LH).
- While cranking engine at least four rotations, check the timing belt back surface for cracks or damage. Replace the faulty timing belt as needed.
- If the surface of timing belt (surface indicated by the arrow in the figure) is worn abnormally (scuffing and coming out of core) or damaged, inspect the idlers, tensioner, water pump pulley and cam sprocket and check the idler alignment for squareness. Replace the worn or damaged timing belt.
- Install the timing belt cover (LH).
Courtesy of SUBARU OF AMERICA, INC.