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Mercedes 300D Marine Conversion.
Have any of you guys come across a marine conversion for a Mercedes 300D motor?
The torque specs, HP, max RPM's are very similar to the Cummins Mercruiser 1.7L motor. I know that these motors can go 400K+ in the cars and used motors at the junkyards out here are around $500/each I know nothing about diesels, i/o's or inboards What is involved in converting a car engine to a marine engine? Cooling? Corrosion? Gearbox or outdrive mating? Exhaust Manifold?
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1971 222 Hiliner 1973 23 Seacraft Center Console 1973 23 Seacraft Sceptre 1971 25 Seacraft Seafari 1972 28 Cary 
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#2
05-04-2006, 12:47 AM
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Re: Mercedes 300D Marine Conversion.
if you find out about that conversion you should also convert it to run on vegatble oil
www.greasecar.com
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#3
05-04-2006, 01:02 AM
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Re: Mercedes 300D Marine Conversion.
http://www.mesamarine.com/6BTconv.html
These guys have done a conversion for a Cummins 6bt truck motor. For about 10K you can have a nice Diesel motor that puts out 400+ lbs of torque. I might call have to call them . . . http://www.mesamarine.com/#Marinization%20Kits
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1971 222 Hiliner 1973 23 Seacraft Center Console 1973 23 Seacraft Sceptre 1971 25 Seacraft Seafari 1972 28 Cary
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#4
05-04-2006, 01:04 AM
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Re: Mercedes 300D Marine Conversion.
cam is a major difference in gas marine motors due to over lap so it won't suck water in the motor while the exhaust valves are open at idle.
__________________
 1978 V20 Cuddy w/ 225 Johnson. And Several other boat's
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#5
05-04-2006, 02:25 AM
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Re: Mercedes 300D Marine Conversion.
Try calling Mercedes-Benz USA customer service at 800-FOR-MERC. This is the US headquarters for their passenger operation. I doubt they have any direct involvement with marine engines but maybe they can direct you to someone who does. I recently left the auto repair business after 20 years as an advisor and service manager with Mercedes-Benz. I'm not a mechanic but I know a few. If you have any specific questions about the engine , I may be able to help you find an answer.
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Formerly - 89 cuddy 165hp I/O and 95 V21 / 150 Honda When the people fear their government, there is tyranny; when the government fears the people, there is liberty. - Thomas Jefferson
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#6
05-04-2006, 09:00 PM
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Re: Mercedes 300D Marine Conversion.
Rick - Thanks . . . I might PM'ing you with a few questions.
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1971 222 Hiliner 1973 23 Seacraft Center Console 1973 23 Seacraft Sceptre 1971 25 Seacraft Seafari 1972 28 Cary
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Linear Mode
