To remove and install the alternator drive belt tensioner on a car, you will need a key «at 13».
1. Loosen the alternator drive belt (see «Checking the tension of the alternator drive belt and replacing it»).
2. Turn out a bolt of the top fastening of a tensioner of a belt of the generator...
3.... remove it together with the bushing and washer (the washer is on the back side of the bracket).
4. Turn out a bolt of the lower fastening of a tensioner of a belt of the generator and remove a tensioner together with a bolt, the plug and a washer.
5. Install the alternator drive belt tensioner in the vehicle in the reverse order of removal.