I just got everything buttoned up from my timing belt install. It wasnt too bad just time consuming. Anyways when i went to start it up it sounded great the first like 3 sec, but then it started making this god awful screeching noise. Almost like metal on metal. I've got two speculations so far. Maybe its the water pump turbin spinning with no coolant running through it. I followed the DIY and it just told me to top off the reservior. Or could it be the tensioner. Any ideas?

Thanks Layne