How do I go about getting this 19mm bolt out? I know I need a way to hold the part the pulley attaches to but am at a loss of how to go about it. Any tricks?

Thanks

 

Something like this: Astro Pneumatic Astro 1869 Astro Pneumatic 1in Heavy Duty Air Impact Wrench with 6in Anvil

 

Is the engine currently installed or is it out of the car? It "appears" out of the car but just wanted to check. If so, with the flywheel still on, us something to stop the flywheel from moving. Something like this:



Then you need a long breaker bar or a pretty powerful impact gun. If you don't have any of that stuff, take it to a machine shop and let them knock it off for you.