It is a BAD IDEA to use the power steering pulley or nut to turn the engine. It was not made for that . The factory shop manual specifies using the Crank Bolt for this...
The power steering pulley has a tapered fit ....
It can take a lot of work to get that pulley off ( read multiple oxy-acet heatings) plus a lot of hammering or hydraulic pressure....
There are plenty of posts about this situation already in the files...