You always want to change the oil after a job where there's a possibility of coolant mixing with oil (timing chains like this one, head gaskets, etc). I personally know guys who have been bit by that. I don't want to condemn your motor yet, cause I don't exactly recognize that sound as an internal engine problem. I watched the video a bunch of times, and I would have put money on it that it was not internal engine or timing chain-related before you tried taking the belts off. Check everything near the crankshaft pulley real close. Make sure there's no rub marks anywhere near it. Kinda surprised more people did not chime in on this thread, I'd be curious what someone else thinks or recognizes the noise.

I hear you, this year has royally sucked for me too, and a kajillion other people as well.

 

If it makes that sound with no belts, Its something touching inside the cover or the balancer like mentioned above. I have not worked on that style of engine in a very long time, I don't remember if the water pump holes go through the cover or not and a too long bolt is touching the cam gear. You can drain the coolant and pull the water pump center bolts to see if the noise is still there. It can run a little with no coolant, no longer than necessary. Its going to be a process of elimination.

There is always the possibility of that noise starting right after the work and is unrelated but unlikely.

 

The holes did go through. Thats what i figured it was at first. So i switched the bolts around and tried it again. I cant find a diagram on what bolts go where

 

Heres the culprit. The accidently threaded the puller into the sleeve for the balancer. It was scraping againt the timing cover

 

YAAAAAYYYYY. Well, better than a wiped bearing at least....

 

yep should of put cloyes double roller chain and new gears while it was apart. should of drained oil right away also as some coolant falls in the pan