[Pushit2.0]

The big center bolt does not hold the crank pulley on, the 4 m8x1.25 bolts do. The crank bolt holds the timing belt cog on. You can try the in gear/breaks/tires on the gound but that is hard on the clutch disk. I recommend using a better impact, I have both my big 1/2" air and electric impacts at home, give me a shout if you need me to stop by.

~John