Ive been trying to get my pulley sorted today and ive searched numerous threads, but there seems to be conflicting information. So here it is.
Non aircon - your alternator will be on a slider, undo the bottom and top bolts so theyre loose as above, then use the 8mm tensioner bolt under the alternator to slacken / tighten the belt when refitting.
Aircon - PITA. The tensioner is a manual one between the crank and alternator pulley. You have to get under the car and wind out a 14mm bolt, then crack the 13mm bolt on the pulley itself so it slides and releases nelt tension. The alternator is fixed and will not swivel.
You can do this:
1, With a 13mm swan necked spanner
2, Grind a few mm off a 13mm socket so it will fit between the bulkhead and bolt
3, Remove camside engine mount, lower the engine 3" and remove as normal through the wheel arch.
Hope this clears it up because ive had a mare. My belt is off and i dont have a 13mm swan necked spanner and limited tools. Off to machinemart!