Originally Posted by
wetamup2k3g
This! For stuck bolts, I find that continual blasting with the impact coupled with spraying PB Blaster, they slowly come out with minimal damage to the threads (if dirty or damaged threads are what is causing the bolt to be stuck). This is for stuck bolts in general, I've never done the actual crank pulley bolt myself, but I encounter stuck bolts all day at work.
Disclaimer: I use either a Snap-on 3/8", a Snap-on 1/2", an Ingersol-Rand 1/2" or Ingersol-Rand 3/4" air impacts with a 100psi supply, top quality joints!