[eddy]

I'm just rebuilding my engine again from a spun bearing. When your bearing first spins you don't get too loud of a noise. The longer you drive the car the louder it will become. It sounds to me like you spun a bearing. Take your oil filter off and cut the metal to take out the paper inside. If you spun a bearing you will have some copper particles in it. You should also see some metal in your oil.