joripokree,
The flywheel on the power torque does not have a key way just a large flat section.
To remove the blade boss on the flywheel use two hammers one large and one smaller. Put the larger one against the side of the boss and hit the opposite side. Just keep going around till it is re leaved otherwise if you have an anvil just place one side on it and do the same thing by turning the boss around.
To remove the flywheel you need to be care full as the alloy could crack (just tap around the center rise and use a couple of screwdrivers to move it off).
Let us know how you go but I am sure that your problem is the blade carrier because of your detailed explanation shows that you have the blade holder washer on the wrong side.
Anyway let us know how you go.