Hammer time!

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Chevy264

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May 31, 2017
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A buddy has a '99 stock Warrior.
While riding it started making a loud hammering noise and he shut it off.
He brought it to me and asked me what I thought.
Looking for some tech-help.
The engine will start but it making a terrible banging noise.
My question is: will the engine run if the counter-balance shaft is broke?
I took a compression test and after ten seconds of cranking it peaked at 70-75psi.
 
Going to be tough to say whats wrong just based off of your post. Maybe a video will help? Either way, at 70-75psi, it needs a rebuild anyway, so i'd just start tearing into it
 
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