I found this on IWSTI How-To sub-forum:
So I guess if you have the balls to try it, you don't need the expensive ST 499977100 Crank Pulley Wrench and ST 499987500 Crankshaft Socket.Step 3:
Now comes the fun part of removing the crankshaft pulley. Instead of buying the very expensive pulley wrench my friend showed me a trick he uses. Attach a 22mm socket to the crank bolt and attach a breaker bar to it. Wedge the breaker bar on the frame or on the ground. Now turn the key to start the car. DON’T LET THE CAR START! Just use the strength of the starter to break the bolt free.