Timing Belt Tension?

Hi,

I already took my head off and replaced the head gasket.
Anyways, When i took the timing belt off I just marked it with white-out and put it back on. But how tight should the belt be?
I loosend the adjusting bolt to put it back on the cam.
Then I tightend it back up.
But the belt doesnt feel as tight as when I first had it on b4 i loosened it.
I find that by moving the afjusting pulley you acn loosen the belt but how do you get it tighter?
Thanks

http://www.binghamtonlife.com/manual/2gsm/images/91-6-27.jpg - might need a new tensioner

make sure that before you tighten the tensioner, turn the engine over manually about 1/4 turn, counter clockwise, judging by the cam sprocket's position.

Alright guys after an hour of messing wit the timing belt I got it to tighten.