help! borrowed tool -> 300SDL timing inidactor pin missing on engine????
 

hi i'm trying to determine 15 ATDC point on the crank pully but the pin on the engine side appears to be missing. There are three "holes" where the pin might have been. Which is it? I can't post pic can someone post a pic to the timing indicator on a 300sdl? I should be able to use the "hole" if i know which hole is the right one...

P