Can anyone tell me what the tapping sound in the video could be? I have done searches and it does not seem to be rod knock to me, but some people (my uncle that works at toyota) say that it is rod knock. I would like to get more opinions before i either get another engine or rip this one apart.
http://www.youtube.com/watch?v=B0Zq6-YaKDU
http://www.youtube.com/watch?v=B0Zq6-YaKDU
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