dakota1820

They arent loud just clickity and mine at certain rpms sounds like marbles in a can. Is that all just the by product of a solid valve train? My valves are adjusted properly as well.

Honda_tech4037

Like a tapping noise? Have you checked your trans fluid? Can you maybe give a little more info?

dakota1820

Its an engine noise..... ill post a video. But it seems like they are just noisy.

I did a uoa as well came back very good.

Honda_tech4037

Hmm. I haven't personally heard the d17 make this noise. Does it shake when it makes the noise? Did it suddenly start doing it or has it gradually gotten louder?

dakota1820

No shaking has done it since I bought it hasn't gotten better or worse. Engine has always been well maintained. Have every oil change receipt everything from previous owner . Runs great smooth everything just has this noise

Honda_tech4037

Checked all the bolts on the heat shield ETC?

dakota1820

Yep all bolts are right. What is the etc?

Honda_tech4037

Etc = Etcetera. Like "Did you check the bolts one the heat shield and other various parts". I suppose if it has not caused you any problems it's nothing big. You could always have someone look at it. I'll talk to the folks at the shop tomorrow and see if they have heard of anything.

dakota1820

I didnt know what you meant since it was capitalized lol
But yea you name I checked it. Doesnt do it when cold either gets louder as it warms up.

Honda_tech4037

One thing you could do is take a long handle screwdriver and stick the handle end in your ear and touch the tip to different parts of the motor and things in the engine bay like the compressor so on and so forth. Seems silly but it could help you isolate the sound. Just be careful.

dakota1820

I own a stethoscope it sounds like the middle of the exhaust side of the engine middle of the bottom of the head.

Honda_tech4037

Torque the two bolts that connect the header and down pipe? Is there an exhaust leak coming from the donut?

norcalem2

I would do your valve adjustment then run 5w-30 oil.

dakota1820

I didn't feel an exhaust leak.... Ill check again though. And valves are adjusted and didn't change the noise

Honda_tech4037

I'm sorry if you are getting aggrivated with me. I've only been working with Honda for a short while so I'm actually troubleshooting this in my head step by step. Can you get the stethescope on the block behind the headers safely? Like where the noise is coming from?

dakota1820

No I'm not aggravated. I hear the noise on the head the best on the exhaust side also hear it in the catalytic converter well. But the cat does not rattle or anything...

Honda_tech4037

All the hangars are in tact I assume. Have you taken the heat shield off and actually tried to tighten the headers?

dakota1820

All the header bolts are tight as well just checked . I left the heat shield off from before. No sense for it really.

Honda_tech4037

That's debatable. It does help make a seal for on the header gasket. You said you have had your valves adjusted so I assume nothing was seen under the valve cover. No leaking fluids from anywhere?

dakota1820

How does it help? Please explain. Also nope engine is very very clean

Honda_tech4037

The two top bolts that hold the shield on, those apply pressure to the headers and gasket to help make a seal. That being said, I have seen both leaking and not leaking from the gasket without the shield on. All in all it's better to have to heat shield on anyways for several reasons. The radiator hoses run close to the headers and various wires and such in the area. The time it takes to put 3 bolts in the really isn't a reason to leave it off. But again, preference. No aftermarket parts on the vehicle?

dakota1820

Not its stock. I could put it on again but I know the manifolds crack alot I figured leaving off would provide it better cooling to help prevent it from cracking... Possibly grasping at straws. I put the bolts back in as well. Just left the shield off . Of you think it makes a difference ill put it back on.

Honda_tech4037

Do I think it will make the noise go away? No. Do I think you should have it on there. Yes. Let me brainstorm and read into this a bit more. How many miles are on the car? I assume it's an EX?

dakota1820

It's a vp. Lol. And 123,000

martpav

looks like the shield in the video is shaking.. have you tried just removing the shield to see if it stops rattling?