Where are the timing belt marks Subaru ej16 1600cc?

(This reply works under the assumption that you have already removed the requisite tensioner brackets, auxiliary belts for 1. Air con, 2. Alternator & 3. Power Steering, the two radiator fans, the (grooved) crankshaft pulley & the timing belt covers.)

To install the new belt, you first need to align the three sprockets i.e. two camshafts & the crankshaft - each to an exact 12 o'clock position. Note: each sprocket has a visible notch on it.

The OEM timing belt has three marks: one is a dotted line whilst the other two are solid across the width of the belt.

Note: the DOTTED line must be aligned with the notch on the CRANKshaft, whilst the two SOLID lines must correspond with the notches on the two CAMshafts. To give an idea, see these marks | : |

When standing in front the vehicle and looking at the engine, there are two (smooth) idler pulleys to your left. Removal of the lower idler makes for easier installation/threading of belt through the entire path.

** Dont forget to use a new tensioner to compliment your new belt!