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09-12-2017, 04:20 PM
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#9 |
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20' Daredevil (Ret)
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,546
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Re: Any idea on what this knocking is 72 C20 350
Have you tried to pin it down with a mechanic's stethoscope? Works better than a hose imho.
It doesn't sound to me like a cracked flexplate but I guess that's a possibility.... or loose flexplate bolts. As other have said, it sounds more like valvetrain to me.
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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