laddsqu

I have a 95 lx sedan 5 speed with a d15b2 block d16z6 head
D15b7 intake manifold I just got it a week ago
It's making a wierd clicking noise I can't pinpoint
I'm attaching a video of the noise
https://www.google.com/url?sa=t&sour...bENxdAdOyWfylQ

ezone

Got oil?



What's it sound like if you hold the RPM at 2000?

laddsqu

Yea I have plenty of oil at 2000 rpm it stutters if I hold it
doesn't idle till its warm though if that helps

ezone

Video?
With decent audio?


Video of you slowly raising and lowering the RPM to make the noise happen loudest?

laddsqu

I'm working right now I can post one in the morning when I get home

laddsqu

i apoligize for the audio all i have is my phone the in car video shows me slowly rolling the throttle on and as far as i can tell the sound only happens when i let off the gas

ezone

In the first video it seems like I hear a loud couple of 'clack clack' noises as the engine comes down to idle speed, then around :57 or so it sounds like the clacking became more consistent as the engine idles.



VTEC pins (between rocker arms) not releasing fully, or sticking?
Valve adjustment?

laddsqu

I just found a y8 head I'm go a swap that then check the z6 head out

Rhonda1

Your car rev sounds odd. The click clack may be your IACV engaging and disengaging. Test by disconnecting the harness and see if the sound goes away. It wont hurt your engine but will make the idle fluctuate. I also noticed you do not have a CEL "ON". You have a swap on the head that is a Z6 so I would check and see what ECU you currently are running. Does your car drive with hesitations/sputtering at low rpm when taking off?