Remove the cylinder head and place it to the side carefully.
Here I took a picture immediately after the cylinder head was taken off. This is basically as far as I'm taking the engine apart here. You can choose the righteous patch and split the cases if you want but I've fallen to the dark side meaning I am cutting the timing chain retaining guard that is cast into the lower engine case. This guard keeps the chain from coming away from the lower timing sprocket in the case of a chain failure. Why? I guess so that the chain spits off the sprocket in a controlled manner? Who the heck knows. IMO it's so that the official repair calls for twice the time required to replace the timing chain.
