Here are the problems:
The pistons were tight.
The camshaft carrier move.
The tappets have a mark more than 1 millimeter
How it happened ? Some assumptions :
I think it should not put the last segment on the pistons when the housing baffles on crankcase are in good state.
For the axes of camshaft. I think the exhaust valves are too long. Once when the spring is fully compressed background downforce refers to the axes.
If someone have an idea?