L (Non-Turbo) Model

Protect the radiator with cardboard and blanket.
Remove the V-belt covers.

Fig 1: Identifying V-Belt Covers And Nuts (2.5 L Non-Turbo Model)
Courtesy of SUBARU OF AMERICA, INC.
Remove the V-belts. <Ref. to V-BELT . >
Remove the A/C compressor V-belt tensioner.
Use the ST to lock the crankshaft, and remove the pulley bolt.
ST 499977100 CRANK PULLEY WRENCH

Fig 2: Identifying ST Crank Pulley Wrench (499977100)
Courtesy of SUBARU OF AMERICA, INC.
Remove the crank pulley.
Remove the belt cover (LH).
Remove the front timing belt cover.
Remove the timing belt guide. (MT model)
If the alignment mark (a) or arrow mark (which indicates rotation direction) on the timing belt has faded away, put new marks on the belt before removing as shown in procedures below.
1. Use the ST to turn crankshaft. Align the mark (a) of sprocket to the cylinder block notch (b), and then ensure the right side cam sprocket mark (c), cam cap and cylinder head matching surface (d) or left side cam sprocket mark (e), timing belt cover notch (f) are properly adjusted.
ST 499987500 CRANKSHAFT SOCKET

Fig 3: Identifying ST Crankshaft Socket (499987500)
Courtesy of SUBARU OF AMERICA, INC.

Fig 4: Aligning Mark Of Sprocket To Cylinder Block
Courtesy of SUBARU OF AMERICA, INC.
Remove the belt idler.
Remove the belt idler (No. 2).

Fig 5: Removing Belt Idler (No. 2)
Courtesy of SUBARU OF AMERICA, INC.
Remove the timing belt.
Remove the automatic belt tension adjuster assembly.

Fig 6: Removing Automatic Belt Tension Adjuster Assembly
Courtesy of SUBARU OF AMERICA, INC.
Install in the reverse order of removal. <Ref. to INSTALLATION .>