Thanks Tony.
They are not the same but are quiet similar.
My one is just a balancer unit with separate oil pump.
By looking at your diagrams I have figured out the marks on my one. Unfortunately it looks like I'll have to remove the oil pump again so I can see the mark on the crank gear.
Still can't access hyundai's information, maybe I'm doing something wrong but I've been trying now for 3 days.
Thanks again for your help.
Regards.
Fiachra.