timing belt issues

[James Russell]

Did some work today.  I got to the point where I need to remove the pulleys
connected to the crankshaft. There are four hex bolts and one large bolt
that are at the end of the pulleys.  I tried getting the hex bolts out and
no luck, then I tried to get the large center bolt out, and no luck.  I
tried three impact wrenches and nothing.  

I am rather ticked and was hoping for someone to tell me the trick and
brighten my day.  There aren't many foreign auto shops here in Bozeman but
there is the dealer, and I don't know if they would remove that center
bolt, then when I want to put it back on, take it back there to have them
install it.

Thank in advance

Brad Russell

1984 4ksq