Loud knock, motor in trouble

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Docnoisewater

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Sep 15, 2012
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Brunswick, GA
I have a loud knock, sounds like a hammer hits the top of the engine, very rhythmic too. So…. I have to decide how I want to move forward. I am thinking about just selling it as is for cheap and making a mechanic special. Or I may shop around and see about pulling the engine and dropping another one in there. Thoughts?
 

Ksat

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Nov 11, 2018
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Does the knocking speed up as RPMs increase?
 
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