I am trying to take off the powerhead on my Johnson, but it doesnt budge. I followed the manual in terms of bolts-- I took out the 8 bolts and four nuts. I tried to move it, it doesnt budge. I dont know where to hit or to pry. I fried to crane it, but the whole thing gets picked up. What do I do? Also another question: how do you hold the flywheel still while undoing the monster nut?<br />Thanks in advance.