TwinTurbo.NET: Nissan 300ZX forum - Trying to diagnose VTC noise
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Subject Trying to diagnose VTC noise
     
Posted by BlackholeZ on May 08, 2020 at 12:56 PM
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Message For a long time I've wondered what this duck call sort of noise is coming from. It's most noticeable to me when shifting at medium to low RPM.(street driving normally) I didn't really know if it was happening at other times, that's just when things are quiet enough to hear it.
Last weekend I went for a short drive with the hood off to see if I need motor mounts (I do) and with the hood off the noise was much more noticeable so I clipped the parts and uploaded it.

I know it's the VTC because I used Nissan Data Voice to force the VTC on and it makes that noise all the time. I'm going to go grab a clip of that now.

But what's going on here? Are my intake cams not getting enough oil pressure? Are the sprockets toast? I have some cams off a few motors I've torn down that I could swap on, but I don't want to pull the timing apart unnecessarily.

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-Dan


"Capitalization is the difference between helping your Uncle Jack off a horse, and helping your uncle jack off a horse."
"'she' also likes to swap since I think I am going to need to give her to woody again." - Dvlhntr
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ChristopherTheOne

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