Help diagnose knocking issue VIDEO

Per another thread he checked those and ruled them out.

What you could do to eliminate extra work checking things to confirm them or rule them out is simply continue driving. If it's a loose bolt, it'll fall out. If it's a loose timing chain, it'll break or fall off. If it's a spun rod bearing, it'll sieze, snap the rod and send what's left through the side of the block.

Then, you can come back and notify whichever person had the correct guess.