New crank damper

[earnies2]

Update i looked and looked i must of rotated the crank 3 times then I saw what looked like a B with little dots beside it wolla I struck gold....following Rawze's instructions I put that mark at the bottom and found C,than pin than A. Thought myself a few new words trying to get the sensor out to pin the crank finally got it out pinned the crank removed valve cover and the wedges wouldn't go in. Looking at the cam it looks like I'm 180° out so I will take the pin out rotate the crank reinsert the pin and report back....
On another note what is that fitting i took out its empty....?