So my E300 is a project honestly, it isn't going anywhere no time soon.

In theory I could put the engine at TDC, pour diesel into the port, let it sit for a few hours, and scrub down all the goo? Seems like an easy way to do it.


The closed valves will keep diesel out of the cylinder correct? Technically I could do two cylinders at the same time right? Because in an Inline 6 a TDC cylinder always has a companion cylinder with it valves closed right? What is the firing order of an OM606?

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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

Paint thinner would be a better choice.

For the really grimy, gooey stuff, straight ammonia cuts it like a hot knife through butter. Stinks to high heaven though. Do it outside unless you want your garage to smell like a giant cat litter box.

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“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now

Interesting.Paint thinner would work better than Diesel? Also where can I find concentrated ammonia?

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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

This one?
1997 E300 Cream Beige - 218,000 miles new
I dunno, no leaking after several hours might be wishful thinking. Over 200k miles. Remember they only have to 'maintain' pressure for the smallest fraction of a second. (½ x rpm)
BTW, kerosene is a good solvent too.

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"I applaud your elaborate system of denial"

I just scraped it out with a butter kinfe, pipe cleaner then sprayed a little brake cleaner to dissolve what was left. I wouldn't fill up the pots with diesel. Diesel is not a great solvent and all that fuel is going to end up in the sump.
http://www.peachparts.com/shopforum/diesel-discussion/348326-have-you-cleaned-out-your-intake-lately.html
If you don't want this to happen again, block off ur EGR now.

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CENSORED due to not family friendly words

Oh I didn't know that, I'll go the traditional route that tjts1 suggested

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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

I used a tool shaped like a small spoon which worked well to scrape out the head down to the valves. It was similar to metal measuring spoons, about 1/4 teaspoon size. I would imagine some carb cleaner and a rag on a stick could be used to get things real clean, but I didn't go that far. Stay away from large quantities of liquid. They could pose a hydro-lock danger. The "spoon" also worked well on the intake manifold, as far as it would reach.

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'97 E 300 D

Brake cleaner can produce deadly toxins when burned. I’d rather have gape jelly sinking into my combustion chambers.

I must say, it’s a pleasure to watch you guys work.

Brake cleaner has a super low (0° F) flash point and will evaporate completely far before anyone can put the engine back together and start it up, I would not worry about any deadly toxins.

Modern brake cleaner is made up of acetone, toluene, and carbon dioxide anyway. Nothing there is going to produce any deadly toxins when combusted.

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Milan Brown 1979 240D, rebuilt OM617.952 turbo diesel, rebuilt 722.315 transmission (my only daily driver)

Instagram: @maximed93