Originally Posted by Rusty (Post 3705118)

You need to install a oil pressure gauge. If you get one. Make sure it reads to 150.psi.

Originally Posted by Z_ealot (Post 3705122)

Will look into it, right now just concerned with switching out the oil gallery gaskets....still cant believe nissan went with paper for the original design on those lol


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Originally Posted by Dreadnaught (Post 3705799)

Hey op, is the noise coming from the back of the right side cylinder head? I can't view the video at work.

Originally Posted by Jhill (Post 3705848)

Damn man it's starting to seem like your having every issue possible with your Z.

Originally Posted by Z_ealot (Post 3705850)

Seems to switch from right to left sometimes, but yeah most often from the top right of the rear of the engine


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Originally Posted by Dreadnaught (Post 3705854)

When I first got my Z I heard a tapping coming from the rear of the right side head. I thought I had a valve train issue. It turned out to be purge control valve. That's what you may be hearing. I could hear it if I was standing on the left side of my engine bay but it was a little more quiet. You can put your finger on it and feel it pulsating for every tap.



I think if it was an oil pressure issue you would possibly have advance and retard issue for the intake cam since they are driven by oil pressure.



Hope this helps, I can only do so much over the interwebs.

Originally Posted by Z_ealot (Post 3705851)

Seems like it, but most of them are small issues that just piled up from previous owner neglect. I’ve resolved the majority of them, it’s just little things like this and the water pump that are left to sort out. Water pump is being taken care of this weekend


P. S.

Think i may have found what was semi stalling the engine....not sure how it got there, but there was a 1/4 inch sized hole in the bank 2 air intake resonator. Patched it up and engine seems much happier now

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Originally Posted by Jhill (Post 3705912)

Makes more sense of your constant + long term fuel trim too. Seems you found the vacuum leak. It's tough today without a smoke machine, so many sources for vacuum leaks now.

Originally Posted by Z_ealot (Post 3705914)

What dread mentioned is making sense too, I’ve been getting that ticking/tapping noise for quite a while now and if evap purge valve is the cause it would also contribute to the fuel trim issue as well from what information I’ve gathered


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Originally Posted by Jhill (Post 3705927)

No the tapping is from the Evan purge sol duty cycle being commanded on and it normal, they can be loud. Had many Acura customers thing something was wrong with their car but it’s just the purge valve and Acura puts it right by the firewall on drivers side so of course the driver hears it. It won’t change your fuel trim because the ECM is commanding it on and knows to correct for the fuel vapor.