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Old 05-05-2013, 15:54   #16
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Re: Mercedes diesels

They were installed in many boats from the 1960's to 80's on the premise that they had long track histories of dependability as taxis throughout the world. With parts and factory hubs not only in Germany but Venezuela and elsewhere. Several European car manufacturers made the crossover into marine diesel engines including BMW, Volvo and MAN.
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Old 05-05-2013, 19:36   #17
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Re: Mercedes diesels

Quote:
Originally Posted by deckofficer View Post
If I remember right, my ThermoKing reefer used a de-rated 190D (de-rated from automotive use of around 70 hp or so, to 36 hp) and I know I sold it with over 10,000 trouble free hours on the Hobbs.
Got the ThermoKing Overhaul Manual right here for the OM636 which was in the 180d. It is a governed engine and did not control speed by air intake such as the car did. It also did not have a variable speed fuel injection pump so it would not tweak the injection pump as the engine came up to higher rpm. Otherwise is identical except that it had no belt drive on the front of the engine. I had to drill and tap the end to accept pulley for belt drive to get the intake pump working.
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Old 05-05-2013, 19:58   #18
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Re: Mercedes diesels

I've been using a marinized 190D W201 which has worked extremely well for me.
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Old 06-05-2013, 19:19   #19
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Re: Mercedes diesels

Thanks for the replies. It looks like the old Mercedes 120s were used in all sorts of applications through the 1950s to the 1980s, in all sorts of applications all over the world. I think they are probably a very reliable old plugger which deliver high hours if they are treated properly. So the maintenance record is the key issue.
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Old 07-05-2013, 16:36   #20
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Re: Mercedes diesels

It's likely that if you saw a 180d at the side of the road needing assistance it will have gone at least 500,000 miles and may need a fuel filter change.
Since they have that really rounded fender pontoon look you might not even recognize it as a Mercedes. Dang good old cars. Not very fast though.
kind regards,
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Old 08-05-2013, 22:56   #21
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Re: Mercedes diesels

I would kill to have a MB diesel in our boat, instead of a stupid Yanmar. MB knows how to build an engine that's easy to work on. Yanmar builds "pretty engines" that are packaged well, but takes 3 tiny hands to work on. I've worked on many, many MB engines. Easy maintenance is a BIG issue with their design engineers.
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Old 09-05-2013, 09:34   #22
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Re: Mercedes diesels

yeah, I bought some spares for my 240 based Nanni at the Mercedes Dealer in Annapolis (1998). The Fresh water pump was $35! that's right $35 not $350!
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