So I am swapping out my y7 for the y8, and there is this little plate on the manifold, and I can't figure out what it is. It is a plate that runs across all four runners, and kind of looks like a little maze where there is one hole to each runner. It is right before the injectors, so I wouldn't think there would be gas in there, but am I wrong? I am wondering if it is safe to put hondabond on it since that stuff should not come in contact with gasoline. Thanks for any help.


Modified by Jakester9500 at 6:49 PM 1/8/2007

 

bump. i need an answer

 

engine is out of a 99 ex if that helps anyone. i really need an answer soon so I can put this together

 

are u sure its not for where u mount the fuel rail, it could also be where the TB cable holder goes or is. pic would help a lot even though your question is pretty detailed a pic would help

 

here is what a y8 manifold should look like
if you need any questions on the install let me know ive done it a few times, your also going to have to change the IAC wiring a bit if you wana use a 2 wire IAC

 

you also know that the 99 came with air something i forgot what it was called but the 96-98 didnt come with. i think i see what your talking about. the thing that looks like its slicing through the IM. that is nothing so dont worry about it.

 

that's not what mine looks like. actually i think it might be a jdm d15b manifold, let me look up pics.

 

those pictures don't match it either. this is ******* insane, I don't know what the hell is going on here.

 

I am just not at my car, so I can't take pictures but I guess I will later tonight and load them because this is annoying. But it is an actual cover that appears to be like a maze and is held onto the manifold with 6 screws.

 

well one time i got a y8 manifold off of ebay that didnt work on my y7, the flange didnt match up right and it leaked air so its sitting in my parts pile

 

well my manifold looks pretty much the same as the y8. but i am pretty sure it is actually off of a jdm d15b as previously stated. That's what the seller is telling me. I will post pics later tonight though

 

There's the whole manifold


A close-up of the area in question


And that is the bottom of the 'plate' that goes over it

Maybe now people will know what i am talking about....

 

You have an HX manifold, part number 11 EGR chamber

 

i was told to just block the egr valve? is this correct? and if so, how in the hell do you go about doing it?

 

bump.

 

can anyone at least tell me what the egr valve does? this seems like a question that should be able to be answered

 

the egr recirculates gas fumes. it is there to help with emissions. to block it off you could just use a thin aluminum plate between that and the manifold itself. Im not sure if it will trip any codes or anything of that nature though.

or you could leave it there.

or you could find a y8 intake manifold.

 

well that sounds easy enough. so i could just leave it open and it would be okay I would assume. Someone told me there is like a gold cylinder on the mani that is what I have to block off. But if i can just screw this plate on and leave it at that, that is what i would prefer.

 

EK intake manifold. That manifold you have is from a D16Y5,that port is for emission purposes.If you are not giong to use the egr valve,remove it,block off the opening with an aluminum plate and
seal the opening(circular hole) on the gasket side with epoxy/JB weld,and it should work fine.This
manifold is similar to the JDM D15B 3 stage Vtec engine,just make sure you reseal the cover that
you took off the passage on the manifold.

 

Just tap the 4 little holes in each runner and screw in a direct port nos system(j/k). If your vehicle did not have egr originally there will be no check engine light. You do need to block off the egr valve to prevent exhaust/vacuum leak though.

 

well i put the egr cover plate on the chamber, but I am not sure if the car (97 Civic HB DX) came with the EGR or not.

 

If you leave the egr valve on it also you wont have any probs

 

well i am not looking for problems

 

Did that manifold come with the engine? The HX motor wasn't a Y8 engine, it was like a Y5 I think with VTEC-E. Its basicly a low horsepower economy engine.

The only car that came with EGR is the HX, all other models did not. But if you have to show up for a smog check with a EGR intake manifold on there, they are probably going to take a close look at your setup.

 

If that thing came off of a vtec-e engine it will have smaller runners. Look at your head ports and compare with the runners. If they are smaller you will have lower flow/power.