Killing EGR - Brian's Kit - PeachParts Mercedes-Benz Forum

braverichard · #1 12-12-2005, 10:37 PM

I started the process of getting rid of the EGR valve on my 1984 300SD. Then I ran into a problem. I got to step 8 of Brian's instructions, "clean the surface of the exhaust pipe where the clamp was removed in step 4." See the attached picture of my engine bay. It seems like the corrugated metal tube is strongly glued/welded/etc to the exhaust manifold. A simple tug on it after the clamp has been removed didn't take it off the manifold. Should I apply force? Afterall, I am getting rid of the corrugated tube and the EGR right? No need to be careful to prevent breaking it as it will all be gone. I just didn't want to damage anything. Any help would be great. I sent a PM to Brian but I haven't received any response and I'd like to wrap this up tomorrow morning so I decided to post here. Hopefully someone who has been through it will have some words for me.

dieseldiehard · #2 12-12-2005, 10:53 PM

Quote:

Originally Posted by braverichard

I started the process of getting rid of the EGR valve on my 1984 300SD. Then I ran into a problem. I got to step 8 of Brian's instructions, "clean the surface of the exhaust pipe where the clamp was removed in step 4." See the attached picture of my engine bay. It seems like the corrugated metal tube is strongly glued/welded/etc to the exhaust manifold. A simple tug on it after the clamp has been removed didn't take it off the manifold. Should I apply force? Afterall, I am getting rid of the corrugated tube and the EGR right? No need to be careful to prevent breaking it as it will all be gone. I just didn't want to damage anything. Any help would be great. I sent a PM to Brian but I haven't received any response and I'd like to wrap this up tomorrow morning so I decided to post here. Hopefully someone who has been through it will have some words for me.

I have seen them pretty tight, but it should come off with some twisting motion. If that doesn't loosen it you could tear it off using some tin snips or something, its thin enough, its going bye bye, isn't it? (have no pity on the dirty egr tube!)
If necessary there's always the blue wrench (flame!)

braverichard · #3 12-13-2005, 12:41 AM

Thanks for the response. Now I have the confidence to rip that sucka off.

EGR was clogged with gunk... yak. I cleaned the intake as much as I could, but I'm sure that for a full cleanup I'd have to remove the intake from the engine and clean it thoroughly. I wonder if any of that gunk is affecting my fuel economy.

ConnClark · #4 12-13-2005, 11:05 AM

You don't need to remove the thing. Its opened by a vacuum line. If that vacuum line were to clog with something for some reason the EGR valve wouldn't open. I'll let you make the next logical conclusion.

dannym · #5 12-13-2005, 11:10 AM

Quote:

Originally Posted by ConnClark

You don't need to remove the thing. Its opened by a vacuum line. If that vacuum line were to clog with something for some reason the EGR valve wouldn't open. I'll let you make the next logical conclusion.

If all that crap in there was holding it open then disabling the vac line won't work.

Also it looks a lot cleaner in the engine compartment when it's removed.

Danny

braverichard · #6 12-13-2005, 12:15 PM

Quote:

Originally Posted by ConnClark

You don't need to remove the thing. Its opened by a vacuum line. If that vacuum line were to clog with something for some reason the EGR valve wouldn't open. I'll let you make the next logical conclusion.

You have to be kidding me right? You're basically telling me to reverse what I already made up my mind to start. I need help with removing the metal tube, not advice on whether I should proceed or not.

Anyway, with one yank with full force from my arm I took the sucka off. Now I can proceed with the rest of the task.

Wasuchi · #7 12-13-2005, 12:27 PM

The gasket between my EGR valve and the intake got replaced with a gasket that had no hole in the middle.... plus the vacuum line got plugged somehow too.

Hatterasguy · #8 12-13-2005, 01:03 PM

Rich just rip that SOB off their, show no mercy!

dieselbeagel · #9 12-13-2005, 01:15 PM

U do not need to waste much time and effort.

Put a plate between the EGR and manifold and screw the contraption back on. Then put a BB pellet on the vacuum line that opens and closes the EGR flap. That is all that is needed.

What u r doing is overkill. Not necessary and undue frustration. If u had a 1990 and above MB diesel, then I can see ur endeavors.

braverichard · #10 12-13-2005, 01:51 PM

Quote:

Originally Posted by Hatterasguy

Rich just rip that SOB off their, show no mercy!

Already done.

Brian's instructions said to put the clamp back on and then wait for the silicon to cure. Well, I decided to do it a different way: wait for the silicon to cure and then put the clamp on. So I'll finish it off tomorrow. I liked the last line in the instructions that says that when you finish testing the car you can put the EGR valve back on by reversing the directions.

Quote:

Originally Posted by dieselbeagel

U do not need to waste much time and effort.

Put a plate between the EGR and manifold and screw the contraption back on. Then put a BB pellet on the vacuum line that opens and closes the EGR flap. That is all that is needed.

What u r doing is overkill. Not necessary and undue frustration. If u had a 1990 and above MB diesel, then I can see ur endeavors.

I thought about doing that but decided to remove the entire unit anyway. I wasn't frustrated. It just happened that I was being too soft on the item. This morning I ripped it off with the first attempt. Altogether, I put in 20 minutes yesterday, 15 minutes this morning and probably another 10 minutes tomorrow. You consider a 45 minute deal that doesn't even require me to get under the car or anything like that overkill?

Pete Burton · #11 12-13-2005, 02:08 PM

I've had Brian's kit on Blue for about a year and a half. very happy. I did do 1 thing different than his instructions. I "formed" the copper plate with a press and cut the end off the EGR tube where it sits under the clamp. I put the copper disc in that and sealed it with the enclosed silicone.

Hatterasguy · #12 12-13-2005, 02:12 PM

Pete now that we have emissions again has anyone questoned those plates? I had a nice aluminum plate made up that I stuck between the egr and intake. I am perinoid so I even hooked the vac line back up. It is 100% functional and looks it to the casual eye.

However I would like to get the other plate from Brian and remove the stupid thing all together. I just don't want the emissions guys questoning anything.

braverichard · #13 12-13-2005, 02:23 PM

We don't have to worry about emissions over here so that's good for me.

Pete Burton · #14 12-13-2005, 02:30 PM

I had my car checked last January. Now they have video cameras at the sites so you can watch the monke--oops, I mean technicians

while they test your car. They did not even open the hood. However, even if they did you'd have to have pretty bad luck to find someone who knew what they were looking for. Seems to me they use the most Junior "techs" to do the "tests"

Hatterasguy · #15 12-13-2005, 02:38 PM

The guy who did mine had to pop the hood and do a double take. He thought it was a 5 cylinder.

Yeah maybe I'll talk to Brian and see if I can get one of those plates.