Timing gears-remove and install
Timing gears-remove and install2
Timing gears-remove and install3
Timing gears-remove and install4
Timing gears-remove and install5

there are instructions for changing timing belt. you must use 9.5-10.5 timing belt tension, for correct tension. for that, you need special tool.

use special care when locking timing belt tensioning pulley. when not assemblyed correctly, your engine might be damaged.