Someone on the Grande Punto forum suggested a quick way to change a cam belt without having to lock the various cog wheels in place. The idea is to take out all spark plugs so the engine can be turned easily, then with a Stanley knife cut the existing cam belt all along its length until only half its width remains. Next, place the new belt on the exposed cogs, remove the remains of the old belt and push the new one fully over the cogs. Do you think this would work for a 1.4 twin cam engine?