So a GenIII?
If it's a light 'clacking' sound that is slower than the crank speed, it may just be the hydraulic lifters need to bleed out some air.
This should take care of itself.
If the belt drives the oil pump (I cant remember but I think it does) there may be a slim chance the oil seal is allowing air to enter the oiling system causing the lifters to get noisy.
yep gen 3.
here is a video, really shitty qual, but you can hear the tap
http://www.youtube.com/watch?v=tll-tOKK28U&feature=youtu.be