Did mine recently with a straight 14 & "modified" thin 14mm from a old Fiat tool kit - just heated it up in the vise & bent it. The THIRD wrench for holding the keeper while loosening/tightening adj. nuts would have been a huge help. Had to wedge a chisle between the cam tower to make mine stationary. If I could find a decent deal on all three, I'd buy 'em.