' 71 Nova 350 Auto Knocking - Nova Tech
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  #1  
Old Jul 26th, 14, 04:09 PM
jcmorozz jcmorozz is offline
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Post ' 71 Nova 350 Auto Knocking

Can anyone give me there suggestion what this Knocking is? I checked out the roller rocker and none seem lose and all the rods looked okay? Possible something to do with the automatic transmission plate? The Noise as seemed to got worse after I took the rocker covers off. I posted three videos. Thanks in advance

http://youtu.be/ADcDsm8LkdI
http://youtu.be/thmEplD3eLE
http://youtu.be/WHr6jBLyj4w
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  #2  
Old Jul 26th, 14, 06:48 PM
Big Dave Big Dave is online now
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Default Re: ' 71 Nova 350 Auto Knocking

Welcome to the Team Jared!

The first two with active links sound like a blown header gasket. I would check that first.

If it is blown I would use Percy's dead soft aluminum exhaust gaskets that are guaranteed for as long as you keep the receipt, combined with Stage 8 Exhaust bolts.

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Old Jul 28th, 14, 07:22 PM
Blown73 Blown73 is offline
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Default Re: ' 71 Nova 350 Auto Knocking

yep. sounds like an exhaust leak to me!
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https://www.novas.net/forums/showthread.php?t=19521
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Old Jul 28th, 14, 10:46 PM
62 NovaWagon 62 NovaWagon is offline
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Default Re: ' 71 Nova 350 Auto Knocking

Welcome to the Team Jared!

Sure sounds like a header leak to me..
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  #5  
Old Jul 29th, 14, 01:25 PM
jcmorozz jcmorozz is offline
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Default Re: ' 71 Nova 350 Auto Knocking

Thanks guys, I will check tonight, and post back..hopefully nothing internal.
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