Good morning,
When there is engine noise, it can come from anywhere. A flywheel that is cracked can sound like a valve lifter noise. It can also be mistaken for a rod knock.
You need an experienced tech who is familiar with engine noises and how to determine the origin of the noise.
https://www.2carpros.com/articles/engine-noises
If you could upload a video of the noise, I can help you out with this.
Roy
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Saturday, August 21st, 2021 AT 4:57 AM