Hello Bart,
Set engine to TDC. Note what JFP said and rotate again 360 degrees and check if there is any change on bank 1.
Take out the 2 green plugs for the 2 camshafts on bank 2 too. Check if there is a difference of the cam position in relation to bank 1 and tell us what you've found.
Don't start the engine without these green plugs.
You'll need new ones before you start the engine.
Regards, Markus