Another thing to look at is the flywheel Bolts. Also look to see if Maybe the crank is hitting the Oil pick up tube..
Yup looked at that too. It starts on the stand with no trans, just the flexplate. Can definitely hear the noise is from near the front even while running. It's a rear sump so I did check the oil tube, plenty of clearance there.
The hand spinning in the movie is with flywheel off, oil pump & tube out, literally only the crank & cam in the bare block.
I could understand gear noise or even grumbling but as you can hear, this is definitely a clunk once per crank revolution.
The crank gear is the same whether the cam gear is aluminum or fiber, right?
