Do you or do you not have the T lock holding the center shaft from spiraling out?
You would have had to build your own T lock, there is a diagram in the oem service manual.
Like his second from last pic, IMG 6200? The T lock must be removed after assembling into the engine.
I don't think the factory Ever intended anyone to dis-assemble & re-grease the auto tensioner, it lives in a very well oiled environment.