I find it taxable to find the marks of the crankshaft pulley, in all the manuals I get the position of the camshaft but not that of the crankshaft of the G9U 730 140CV engine that brings the Nissan Primstar, Renault Traffic and Opel Vivaro.
The draft of the crankshaft axis is carried out by means of a specialized tool that is placed in a hole in the block on the right side, I add a drawing. It's like a long bolt