Help diagnosing engine noise (rod knock/valve train)

[beems240sx]

No longer need thread found issue

[Ka-t in progress]

If you think it can possibly be a rod bearing or something,try unplugging one spark plug at a time to see if the sound goes away. You can also do a compression test or pull the pan. also sounds like to could be the chain tensioner getting weak,causing chain rattle.

[beems240sx]

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