Nice work on the videos. It sounds like the engine has no oil pressure. Is the oil light on? Also what weight and brand oil did you use?
If everything checks out the engine will need to come apart to check the timing chains and camshaft actuators.
Here is a guide on how the actuator work
There are balance shaft guides and chains that go out in the rear of the engine as well. Can you tell if the noise is coming from the rear or the front of the engine it is tough to tell by the videos, sounds like front.
Here are diagrams to help you see how to do the job.
Check out the diagrams (Below)
Let us know what happens and please upload pictures or videos of the problem.
Images (Click to enlarge)
Wednesday, January 24th, 2018 AT 10:55 AM