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Smallblock454 · 09-11-2016, 02:27 PM

Hi Sean,

my opinion:

A timing sensor wouldn't cause a mechanical noise like that. The engine would just die.

A bad camshaft adjuster solenoid could cause a wrong timing. But to me it sounds more like a single valve problem than all valves of one cylinder bank or something like that.

Also if you would have a completely bad camshaft timing at one bank you wouldn't have perfect compression in that bank.

But it is always hard to do a diagnosis from a video.

That is why i asked to locate the noise. And that is why i suspect a hydraulic lifter. Because if it fails there must be no negative effect to the compression.

Gelbster's question is also a good one. How much retarded?

Regards, Markus

09-11-2016, 02:27 PM	#27
Smallblock454 Registered User Join Date: Jun 2014 Location: LB, Germany Posts: 1,515	Hi Sean, my opinion: A timing sensor wouldn't cause a mechanical noise like that. The engine would just die. A bad camshaft adjuster solenoid could cause a wrong timing. But to me it sounds more like a single valve problem than all valves of one cylinder bank or something like that. Also if you would have a completely bad camshaft timing at one bank you wouldn't have perfect compression in that bank. But it is always hard to do a diagnosis from a video. That is why i asked to locate the noise. And that is why i suspect a hydraulic lifter. Because if it fails there must be no negative effect to the compression. Gelbster's question is also a good one. How much retarded? Regards, Markus Last edited by Smallblock454; 09-11-2016 at 02:31 PM.