Have a look here for details of how the pins are used especially the diagrams at post #19 and #50.
http://www.ukmonster.co.uk/monster/s...ad.php?t=58330
However, the pins are only for locking the cams during adjustment - they won't be strong enough to secure the pully while you tighten the locking nut. You need one on these for that:
http://www.avantiraceparts.co.uk/shop.php?cat=7
