Greetings All!
I am writing this, as I have searched the forums and have not seen any questions, comments, or ideas about this.
In my 2002 Honda Odyssey, which GadgetMan Michael Lee completed wonderfully grooved for me , while I have noticed power improvements, and a much smoother idle, I believe I can still get more efficiency out of this thing.
The picture is of the Manifold Intake Cover on the bottom side. The red circles/ovals are the grooves on the two sides??!?!?! The yellow circle/oval is where I believe the EGR recirc flows back through [and no this is not currently blocked, as in many Honda cases].
Several years ago, before I knew about GadgetMans' Grooves, I learned about these, because for some reason, I don't remember, probably rough running, I pulled this cover to see what was the matter. The grooves on both sides were filled COMPLETELY with carbon. I scraped them all clean, and sprayed the whole thing with Carb/Choke Cleaner, and put it back on, and there was noticeable improvement.
I have an idea which I am CONSIDERING [by opening this discussion]:
Now that I am GadgetMan Grooved, I am CONSIDERING what may be able to be done about these grooves, if anything?
I also recall seeing fluid inside the intake puddled [I don't recall if it is gasoline or not, but it is clear, and the inside of the manifold is orangish color, like gasoline [and not antifreeze], which may indicate an injector/fuel line leak?~~
I am curious what, if any, others have to say about this, based on knowledge, or even scientific speculation experience.
Why I might NOT consider doing this is because I believe this is part of the EGR valve flow and I do not really understand how these grooves do or don't impact that process.
Thanks in advance for your thoughtful insights.
Jette