C4 HDI 2.0 Distribution

In the assembly of the distribution it is necessary to mark the injection pump?

In the HDI it is assumed that the pump is only to put pressure on the common rail, in some engines it carries a position collector the pump. In this case it does not need to maintain the position, but I advise that if it carries blocking drill in the pulley to maintain position, you use it instead of marking the pulley, (I think I remember that it was an M-8 screw as a pin between the pulley and a housing in the block). Greetings!!