I think I need to clean my EGR ports because Im throwing an EGR code on the CEL. I have read up on the way to remove them with a slide hammer and a small hole drilled in the top, but is it risky if you get some metal shavings down inside the port?

Has anyone had issues after doing this proceedure and messed up their engine?

 

Hrmm, yeah its risky, my understanding of it is, since the drill bit is threaded to make the shavings come up and out so the don't drop inside of the intake.
I used to know a Honda mechanic that would charge 150 on the side for EGR ports, he said there was some special drill bit Honda uses to do it correctly. You also need some small caps that Honda sells to seal the holes back up
Performance difference was night and day once we had them cleaned out. This was on the old accord f motors tho.

 

anyone know of this special drill bit?

 

i have heard of a way to tap a hole inside the head... with a bit that pulls the thread shavings out, not leave the shavings on the inside.. im not sure who makes it or wat it's called but i have definatly heard about it... so i would try a search for it on here or in a search engine...

 

Use a high pressure air hose to pressurize a cylinder from a spark plug hole. Position the crank to have the intake valves open to the intake manifold and plug all the vacuum ports on the manifold and drill away.

Pirate

 

on a similar note, are these the correct EGR plugs?





I thought the tops were flat instead of rounded over? I had the correct part number and the dealership verified.

 

I hope you're not asking me. I um... lost my EGR a while back. I would just have a shop weld over the ports once I were done. Or you could tap the holes, and plug the holes with little machine screws and hondabond.

Pirate

 

You can put a little vasoline on your drill bit to help catch the shavings, play around with it you may need to drill slow + reapply the vasoline.

 

just dont drill right thru

 

i have one in working condition for $20 if you dont want to drill it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by loudsubz &raquo;</TD></TR><TR><TD CLASS="quote">on a similar note, are these the correct EGR plugs?





I thought the tops were flat instead of rounded over? I had the correct part number and the dealership verified.</TD></TR></TABLE>

Yea, those are the replacement plugs from Honda. Here's how you do it:

http://home.comcast.net/~em-engineering/T2T013.pdf

 

Has anyone tried using the spray sea foam to clean out the EGR ports? That seems like if it worked might be a little easier.

 

Doing that made my valve seals dry up like crazy. Granted they were already on their way out, but it accelerated the problem.

 

Good write up, however it fails to mention the port on the side. think of the ports like this
---|---|---|---|---
That link shows how to clean the "vertical" ports, but the long horizontal port connecting them all can get clogged as well. You will notice there is 1 cap on the side of the intake, and thats how you can access it with a LONG drill bit. Really to do it correctly the manifold should come off. However, some people can skimp out and just do the vertical ports and get some ok results.

And yes that pic shows the caps you need. Then you should have someone who can aluminum weld, weld them up.

 

when you mention not to drill right through are you talking about the actual port or just the cap? I assume the port because the cap has such a thin wall of metal that its impossible to not drill through the cap and be able to catch with a screw.

 

unless your egr has been serviced before you do not have caps, they are actual filled in solid aluminum plugs that are fairly thick.
I personally prefer to pull the manifold, drill, clean, flood with carb cleaner, air hose out and then tap the holes and put machine screws in. takes aout 2-3 hours and then i can clean the ports out again without taking the manifold off.

 

I may just go this route. Do you have a writeup?

 

If you take the manifold off for the first time would you need to replace anything like gaskets, or vacume lines that are hard to get to?

 

I use a hondata intake manifold gasket so i can re-use it. if you are all stock you will need a new intake manifold gasket since the old one will fall apart.
I have not done write ups, the first time I did this procedure I followed the Helm manual, then once I had done it I no longer needed guidance. then again I have it many times and the first time was a looong time ago.

 

were you able to take the IM off in one piece? Just unbolt from the head and undue any sensors/lines..or did you have to take off a couple parts for it to all come out.

What machine screw did you use?

 

my friend called me up and was trying to do this but he told me the cap won't come out. what would happen if he were to try and drive it with the hole still open? it's still at his house btw so he doesn't need to worry about towing it and has another car to drive.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eg Fool &raquo;</TD></TR><TR><TD CLASS="quote">my friend called me up and was trying to do this but he told me the cap won't come out. what would happen if he were to try and drive it with the hole still open? it's still at his house btw so he doesn't need to worry about towing it and has another car to drive.</TD></TR></TABLE>

its safe to drive if you take off the vacuum line to the EGR lifter. This will make it stay shut so no gases will flow through. Not sure how this will affect driveablity, i assume not much since some people eliminate them all together.

 

if you dont have access to a welder, can you use JB Weld?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dleccord &raquo;</TD></TR><TR><TD CLASS="quote">if you dont have access to a welder, can you use JB Weld?</TD></TR></TABLE>

Wouldn't recommend it, those gases get pretty hot.. but try it let us know how it goes

 

So I just ordered the intake and EGR gaskets to take my manifold off, so I can clean/drill and tap the EGR ports.

Should I remove the injectors or will it be fine to leave in? Do I need any special tools to unhook the fuel rail? Anything else I should be carefull of?

I'll be looking in the Helms when I get home, but I thought it might be good to bump this up. If anyone askes I guess I can take pics, and write up how I did mine. Honestly I don't think it should be that hard, unless I mangle something, and have to wait for parts.