The tdc mark will be on the other pulley I imagine as you need to line this up with the bottom plastic pulley cover
Temporarily place the plastic lower cover back on and the other pulley you should then have your tdc marks
I have never done a polo, but golfs, t4’s of that vintage have the bottom timing mark on the flywheel, viewed through a hole in the bell housing
Thanks done now, one tooth is shorter and a mark on the case... Had to old school it Sent from my ART-L29 using Tapatalk