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**AussieinNC** · 09-12-2017, 02:17 PM

Either a rocker stud has pulled out of a head or the rocker has come loose...just pop off the rocker covers and the issue will be obvious...

Doesnt sound deep enough to be a bearing...

Good luck

09-12-2017, 02:17 PM	#3
AussieinNC Moderator Join Date: Jun 2017 Location: Cherryville, NC Posts: 2,155	Re: Any idea on what this knocking is 72 C20 350 Either a rocker stud has pulled out of a head or the rocker has come loose...just pop off the rocker covers and the issue will be obvious... Doesnt sound deep enough to be a bearing... Good luck