My 5K has been making a weird noise.
Recently I had to reground my crank, fitted new oversized bearings.
The engine made a weird noise before I do this and keep doing it right after the first startup after the work done on the crank. I thought it was bearing related but since he kept doing it, I don't know what that is.
I recorded the sound on video, the car only made 150kms after the work, so I hardly believe it's bearing noise, since I tighten all bolts with the correct torque, lubrificated both crank and bearings before fitting...
The sound is stronger when cold and almost inaudible when hot.
I was told it can be the timing chain...
So here is the video I recorded: