1985 300TD Califronia EGR Delete - Page 2 - PeachParts Mercedes-Benz Forum

WarTowels · #16 01-12-2015, 04:48 PM

I'll give them a jingle tomorrow. It would be humorous to me to show up with a 30 year old vehicle for a recall. I'd love for them to replace some tired stuff for free!

rscurtis · #17 01-13-2015, 10:08 AM

You turn your car from a relatively clean citizen to a gross polluter.

These old cars, even when in proper tune, are mathematically 100 X dirtier than a new diesel. Eliminating the EGR simply assures that the engine can breathe properly, reducing particulate emissions. The NOX contributions from this very small fleet of old cars is too small to even consider measuring.

Most of the problems with emission controls on 2007.5 and newer diesels can be traced back to EGR and EGR cooler malfunctions. Insisting on "Advanced EGR" even cost the president of Navistar his job.

ROLLGUY · #18 01-13-2015, 10:56 AM

Quote:

Originally Posted by mach4

On the '85 you really want to ditch the Trap Cat and the EGR. Here's your solution in one convenient simple package -

1985 CA emission 617 owners, You NEED This:

Of course I am biased, but I agree

Mxfrank · #19 01-13-2015, 11:30 AM

Quote:

Originally Posted by rscurtis

The NOX contributions from this very small fleet of old cars is too small to even consider measuring.

I can see your hands waving from here. All I can say to this is "prove it".

If you don't understand the problem, at least understand that you are committing a criminal act under both state and federal laws. Being caught may be improbable, the penalty would be multiples of the value of your rusty old taxicab.

mach4 · #20 01-13-2015, 12:43 PM

Quote:

Originally Posted by Mxfrank

If you don't understand the problem, at least understand that you are committing a criminal act under both state and federal laws. Being caught may be improbable, the penalty would be multiples of the value of your rusty old taxicab.

i was getting a bit confused and I went back to reread the original post to this thread.

Quote:

Looking for some assistance in deleting the EGR from a 85' Cali Turbo.

The OP was requesting technical information not legal information or environmental information or political information. He was specifically not requesting legal information...presumably, since he didn't ask, he already was aware of those aspects of his situation.

I'd like to remind everyone that this is a "technical information and support forum". Knowing how much people like to discuss off topic items, the forum owners have been kind enough to provide an Off Topic area for those kinds of discussions.

I hope it's not too far out of line to suggest that that forum be used for its intended purpose and this forum be used for its intended purpose.

dude99 · #21 01-13-2015, 01:02 PM

Quote:

I'd like to remind everyone that this is a "technical information and support forum". Knowing how much people like to discuss off topic items, the forum owners have been kind enough to provide an Off Topic area for those kinds of discussions.

Hear hear! Could not agree more

WarTowels · #22 01-14-2015, 11:02 AM

So #61 from the diagrams lovingly called the "Corrugated Pipe", can anyone explain to me it's purpose? I'm still trying to wrap my head around the system.

Quahog · #23 01-14-2015, 11:24 AM

the pipe sends some exhaust gasses from manifold to the EGR valve.

The delete kit removes the pipe and blocks both manifold the and egr ports.

mach4 · #24 01-14-2015, 11:24 AM

That's what allows the exhaust gas to get to the intake manifold via the egr valve. On the '85 the exhaust port just goes away when you install the "test pipe" and all you need is the block off plate for the removed egr valve. The egr port is on the trap cat. On the earlier versions you need the block off plate and the little disk which seals up the exhaust port for the egr because the port is on the exhaust manifold.

WarTowels · #25 01-14-2015, 11:29 AM

And the test pipe you are referencing is the kit that deletes the trap yes?

Is there a way to leave the trap ox (for now at least) but remove that pipe while deleting/plugging the EGR?

Trying to figure out the most economical/easiest solution. The pipe is cracked so it's not doing it's job- so it either needs replacing or removal.

Cheers,

ROLLGUY · #26 01-14-2015, 11:32 AM

Quote:

Originally Posted by WarTowels

And the test pipe you are referencing is the kit that deletes the trap yes?

Is there a way to leave the trap ox (for now at least) but remove that pipe while deleting/plugging the EGR?

Trying to figure out the most economical/easiest solution. The pipe is cracked so it's not doing it's job- so it either needs replacing or removal.

Cheers,

The EGR delete kit does just that for CA and Federal equipped engines.

WarTowels · #27 01-14-2015, 11:35 AM

Sweet, so sounds like in the short run a EGR delete kit would be the quickest and easiest "fix".

I have a laundry list of things to fix on the car... so I'm trying not to shell out $150 here and there on various pipes and what not!

ROLLGUY - Want to sell me a kit for my CA car?

Thanks much everyone,

charmalu · #28 01-14-2015, 10:56 PM

I have a kali 85 300D. When I bought it I didn`t know about the Trap Oxidizer, EGR or much of any thing else bout these Diesels, as I had not driven another 300D/SD turbo to compare.

It did lack some get up and go, and the Indy shop I was using ran the VIN# and the last replacement of the Trap was over 50K miles ago. they are supposed to be replaced every 30K miles, and replaced by the dealer at MB`s cost.

Made a big improvement on the way it ran.....that is till a couple summers later when we were up near Valle, Colorado at elevations of 9K ft and above. We really had no OOMPH to get going, and she was a real dog.

Talked to my Indy, and he said to change it like a 83 is set up. So I was on a hunt through the junk yards for a Down Pipe, Manifolds, Turbo and Air intake assy. etc... had him install them, and the next year at Valle it was like a rocket ship.

The trap really chokes these things down, along with the goop build up in the intake and when the Boost line to the Alda gets plugged up. had that problem on another trip.

Later I replaced the manifolds with the EGR castings with some from a 78 - 79 W116 300SD. these 2 yrs had no EGR and really clean up the appearance on the engine bay.

With the exhaust first going to the Trap oxidizer, and then through the turbo, there is a cooling down of the exhaust gasses to spin the Turbo.
having the hot gasses going straight to the Turbo will give a slight increase in performance.

Also with the Trap gone, you can then use the Federal Starter instead if the pricier kali one.

Now this is what I did before I ever read about a delete kit for this problem.
The kit is a less expensive way to go than the route I took.

Rich (RollGuy) has a great product, and that would be the best other option for you to go. I know Rich and he makes some great products.

As Toomany BNZ mentioned, the EGR will eventually plug up the opening into the Intake manifold. Every old OM617 Manifold I have removed in the PNP yards, has been plugged tighter than a Bulls A__. The thing hasn`t worked in years.

The little Stainless Pipe between the EGR and manifold my be NLA and the JY would be your best place to source one...if you want to keep it.
Iam really supprised there is still some of this kay rap still on these cars after all these years.

There is more pollution coming out of Air Force One and other support from D.C. and these PU`s Rolling Coal than my little old MB`s.

Charlie

WarTowels · #29 01-14-2015, 11:54 PM

Thanks for the great reply Charlie!

charmalu · #30 01-15-2015, 01:07 PM

Quote:

Originally Posted by WarTowels

Thanks for the great reply Charlie!

Glad I was some what helpful.

If you go the way I did, and you start pricing out parts, it is more expensive, that the Delete Kit.
The Down Pipe I sourced off a 84 300CD in the JY got me by for a while, then gave way at the flex part, and I then bought a new one. pricy dang thing, but cheaper in the long run than what the JY guy charged me. this was before I discovered PNP. LOL

I didn`t mention it above, but once the Trap is removed, the Kali or the Federal Starter can be used. the difference is the Kali Starter has the solenoid moved on the bottom side.

There is this in the DIY Articles Section.

PeachPartsWiki: Calf. to Fed. Emissions Conversion

I still have the 85, bought it back in 97. My introduction on how to go into poverty owning a MB, and taking it to a shop to be worked on. LOL
I didn`t learn, I bought 3 more, but I work on them now. Thank You Forum.

Charlie

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