Intake cam chain play

luisazmz

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I noticed the intake cam chain (part #6) tightens and loosens when I manually turn the engine over. I'm aware that chains have tight spots but when this loosens up it's hits the chain guide that goes overtop (part #14). If I adjust the cam chain tensioner once the engine is idling (part #11) will this be 'fixed'?

I took the engine off and did an overhaul because there was a knocking noise and this was the only issue I found.
Additionally, the tensioner bolt was stripped (this has been fixed), could the issue just have been the bolt? I really don't want to put the engine back on the frame without having the certainty.
 

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