There's a company that specializes in marinizing MB diesels. I visited their website a couple of years ago but for the life of me, I can't remember the name of the company.
I've seen a number of boats on Europe Ebay with MB diesels.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Adapters made to order.

http://www.kennedyeng.com/

Um that website is a little crowded isn't it?

now its working, just a little slow..

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85 300sd 400k
99 e300td 101k (hers)
34' californian twin 5.9 cummins
1999 F350 Powerjoke 75k
2001 F150 Supercrew 51k
19681/2 GT/CS

CRMONT, it looks like you are in the same fix as I am with the 318s and 1MPG. That's why I'm on the hunt for a MB diesel swap. I have a nice wood Richardson on Lake Ontario that I would like to get going ---IF it wasn't going to cost me a bundle to run it. Why not use the MB auto that goes with the engine and let her go. It can be cooled. Mine have run a long time under tow loads without complaint. It would be quiet. And it would hardly be the guzzler that the 318 is.
sparky

I came across this site (http://www.lancingmarine.com/homepage.html) a couple of years ago. It used to have some information about marinizing Merercedes OMs, particularly OM314, OM352/321, OM364 and OM366. In the marine tranmission and bellhousing section, there were references to OM 616 and OM617 adapters.

The site appears out of date now...

In considering this sort of conversion remember, the IP/governor on the 617.952 engines will not be suitable for fixed throttle operation.

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Never a dull moment at Berry Hill Farm.

GS:
It looks like we both keep boats on Lake ONtario while living at a distance. My sailboat is at Oak Orchard Creek. Where is yours?
The best solution to your 1mpg is sails.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Here is a link to Mercedes-Benz Marine diesel engines:
http://www.dmv-bootsdiesel.de/Englisher%20Index/Lieferprogramm/MercedesBenz/mercedesbenz.html

Note the OM616 in the botton right corner. Always thought they would make a great little marine engine.

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Anders

1995 E300
2015 VW TDI Sportwagen 15K
1977 240D (197K)
2002 Subaru Legacy L Wagon (115k) (Wife's)
Gone but not forgotten:
2005 Buick LeSabre
1998 C230
1984 300D
1983 240D
1981 300SD
1974 240D
1974 Fiat 124 Spider
1968 Triumph TR250

Another sailer in Colorado! What the hell are we doing in this state? I should say that I'm pretty much a wanna-be sailer and the only boat I have ever owned was a Hobie 18. I got tired of the droughts we had a couple years ago and sold it.

I need to move to the coast, buy a boat, and just start sailing (or pay someone to sail with them. Circumnavigation, here I come )

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B
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1983 300SD

Yeah TWIN 318's really make my butt pucker at the gas pump.

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85 300sd 400k
99 e300td 101k (hers)
34' californian twin 5.9 cummins
1999 F350 Powerjoke 75k
2001 F150 Supercrew 51k
19681/2 GT/CS

Try a pair of 340hp 454's! Low 20gph range each.!

If I remember correctly turning at 3,200rpm they burn 21gph each according to the Flowscan. With the Flowscan you can see the secondaries(sp?) on the carbs open up!


I have never seen a car engine take to the water well. They never hold up and seem to suck tons of fuel. A pair of fuel injected 350's would be the way to go.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Here's a shot of my latest marine engine repair project. It consumes a whooping 2-3 gpd (gallons per day). It's the 18hp Volvo model 2002 diesel auxiliary installed in my son's sailboat. Affectionately referred to as the "Bulgine"

Attached Thumbnails

 

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Never a dull moment at Berry Hill Farm.

Cute little guy.

Here is my dream motor(s)

http://www.volvo.com/volvopenta/global/en-gb/marineengines/powerforleisureboats/diesel_inboard/d3-160/d3-160.htm

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85 300sd 400k
99 e300td 101k (hers)
34' californian twin 5.9 cummins
1999 F350 Powerjoke 75k
2001 F150 Supercrew 51k
19681/2 GT/CS

Volkswagen also makes marine versions of their TDI engines... from a 40 HP 4 cylinder to a 150 HP 5 cylinder, NA or Turbo.

http://www.volkswagen-marine.com/index_e.htm

http://www.autoshoppingcenter.com/VW/VW_marine.html

I told my uncle several years ago that he should put a Mercedes-Benz 617 Turbo in his boat. It had a dead Mercury 150 HP 4 banger that was just begging to be junked.

Wonder if they can make one to use a T-5 behind the 617 engine.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

Ever seen a long tail boat? I took one up the river Kwai (Thailand) It had a 240D mounted on a pivot, the drive shaft was welded to a long pipe, with a prop at the end, the operator has only a yoke attached to the engine and swings the entire assy one way or the other to direct the boats path, dipping the prop deeper to go fast, a gas (er diesel) can on the floor of the boat and a car battery setting along side for starting. Not the sort of thing you will find in the mainland USofA. There are probably laws against this over here
This contraption that will lay you back as it accelerates the boat to a fast clip and with the exhaust wide open it makes communicating with the passenger in front or in rear of you (single file here!) almost impossible, even if you haven't had a few Singhas. In only seconds this boat is up to skimming the waves and the resulting breeze cools you somewhat fom the sweltering heat and high humidity in that part of the world. Ah yes, I gottta do that one again!
I wonder how many MB engines have found their way into this kind of boat?

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!