Impreza L Sport Wagon F4-2.2L SOHC (1999)
8. Remove air cleaner lower case (Except 2200 cc California spec. vehicles).
9. Disconnect spark plug cords from spark plugs (#1 and #3 cylinders).
10. Disconnect blow-by hose from rocker cover (RH).
11. Lift-up the vehicle.
12. Remove under cover (RH).
13. Place suitable container under the vehicle.
14. Lower the vehicle.
15. Remove the timing belt cover (RH) bolt.