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#1
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Noise under valve cover
Took my '64 Camino out for a spin today.Just as I was turning into the laneway heard a squeaky sound coming from under the hood.At first I thought it was just a noisy belt or pulley because that's what it sounded like.Noise is coming from under valve cover.Engine is a 327.Oil pressure is good 40-45 lbs.at idle and 60-65 as it's reved up.Over the weekend I'll pull off the a/c compressor and pull the valve cover.Any ideas of what it might be?Thanks,Bill.
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https://www.youtube.com/watch?v=gkDf7PPRzJ0 |
#2
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could be a rocker arm/ ball squeak. back in another time we would put some
GM posi additive (the whale oil stuff) in the oil and problem cured. |
#3
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It could also be a lifter failing. Should be researched immediately to avoid ruining the cam if in fact a lifter is failing/has failed
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#4
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Wouldn't a bad lifter make a tapping noise?Mine is a chirping sound.
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https://www.youtube.com/watch?v=gkDf7PPRzJ0 |
#5
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Lifter stuck in the bore not rotating or rocker arm ball squeak both possible. I would not run the engine anymore then I needed to. Good luck.
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#6
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Quote:
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#7
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Noise under valve cover
I had the same problem with a 1966 327/300hp Vette engine. The stock valve covers were re-installed upside down after new gaskets. Stock valve covers have a -O- stamped on the flange in the center of the valve cover. This stamped side needs to be installed toward the intake manifold, as the valve covers are not symmetrical. I saw evidence of the pushrod side of the rocker arms rubbing against the valve covers. I hope this solves your problem.
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