Today I had to remove the cross-over pipe on my SDL to finally put the metal piece in that holds the injector lines, well anyway, my cross-ver seems to have had more gunk in it now than 11k miles ago when I had it off and cleaned to replace the glow plugs? Since then that EGR has been disconnected. The amount wasn't really significant but enough that if you touched it with your finger it would gunk up. I did this with the engine hot so maybe that's why it was oily rather than dry carbon. just looking for your input as usual.

Thanks
David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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But you may have a turbo seal leaking or blow by.
Both will spray sludge into the intake.

__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
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Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
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1985 300SD
1983 300D
1984 190D
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I don't think it's blow-by as this engine comsumes no oil. It leaked a quart to 6500 miles. My rear main leaves a nasty little puddle wherever it's parked. I wonder if it maybe is the turbo seal as you said. Is there any other way to tell or fix it or is this one of those things that the cost wouldn't make it worth it?

Thanks
David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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1987 300SDL 247k miles (mine) "Panzer"

Do you have a TRAP on your car???

If the TRAP goes bad = turbo seals then turbo bearings toast + massive sludge in the intake manifold.

It is not legal to do this:
Some people have been known to remove the TRAP, empty it and reinstall it = better MPG and power

__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/

I "had" to replace my manifolds but "couldn't" find the same year. The manifolds I "replaced" them with some that didn't have any way to mount the trap so I "unfortunately" had to eliminate it. Strange thing now, the car has more power, gets better fuel economy and even tested cleaner at the inspection station. Oh yeah, I "accidently" forgot to put the EGR back on. It some how mysteriously jumped into my garbage can and disappeared there. I couldn't "find" another one so I had to cover the openings with some specially made plates. I pulled one off to see how clean the manifold was on the inside and there wasn't any gunk after 10K+ miles of driving it that way. Must be running cleaner for sure.

__________________
DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012

My car had the trap removed in '97.

Thanks
David

__________________
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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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Start looking at a used turbo or rebuild kit.

After blocking my egr I only get a very light coating of oil in the intake and crossover.

Did you block the egr with a plate or just pull off the vac line? It might be possible that the valve is leaking. I would check that out before rebuilding the turbo.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200