[radarwhiz]

I know this is an old thread now. That noise ended up as a spun rod bearing on mine. You all are gonna hate me for this but until I can home to my wrecked one to swap the spare motor out of that I pulled the oil pan and changed the one bearing that had spun. It's lasted so far but there's a little rattle still on start-up and hard accel. I'm sure there's other bearings that are worn too, just maybe they haven't spun yet. I use real heavy weight oil and hope it lasts for a couple more months.