twin 617.951 turbo diesels in my boat - Mercedes-Benz Forum
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post #1 of 41 Old 05-16-2005, 09:07 AM Thread Starter
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twin 617.951 turbo diesels in my boat

just an update to the forum.. have bot of my 617.951 turbodiesels running in my boat project.. attached to the marine transmissions and almost ready for a sea test..

anyway, lots of photos and a few video clips fo the engines running in the boat.. and a nice exhaust note thru the marine exhaust..

check it out:

http://www.coastalboatsales.com/jfraley/gallery/

Jason Fraley
Tampa FL

1976 Mercedes Benz 300D
1987 Mercedes Benz 300TD sedan
1984 Mercedes Benz SL300D turbodiesel
2001 Dodge Ram 3500 4x4 Dually Cummins Diesel
1974 30\' Uniflite \"Salty Dog\" sportfisherman powered by (2) 617 951 MB turbodiesels
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post #2 of 41 Old 05-16-2005, 09:39 AM
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Great pics! I've been wondering how this project was going....

\'87 Mer-B 300D (220,000 miles) (sold)
\'93 Mer-B 300D (173,000 miles) (sold)
\'87 Porsche 928 (101,000 miles)
\'98 Dodge Ram quad-cab (250,000 miles)
\'2001 CLK430 Cabrio (50,000 miles)

Past cars: 1969 mercedes 250, 1981 300D, 1972 220D
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post #3 of 41 Old 05-17-2005, 01:45 PM
 
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wow

That is an amazing project, I belive. I can't wait to see some videos of the boat running on water.
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post #4 of 41 Old 06-18-2005, 07:23 PM
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Is there any news on this?

\'87 Mer-B 300D (220,000 miles) (sold)
\'93 Mer-B 300D (173,000 miles) (sold)
\'87 Porsche 928 (101,000 miles)
\'98 Dodge Ram quad-cab (250,000 miles)
\'2001 CLK430 Cabrio (50,000 miles)

Past cars: 1969 mercedes 250, 1981 300D, 1972 220D
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post #5 of 41 Old 06-19-2005, 10:20 PM Thread Starter
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snap clink crunch

well the first sea-test was pretty sucessfull, discovered a few leaks and solved a couple other problems.. but that test never really got much above idle, anyhow today (sunday) it went back into the water for a range of other tests and everything was flawless until I had her wide open and was just starting to come up onto plane and the stbd side motor broke the timing chain...crunch... game over for now.. but the nice thing about having two engines is the other one will get you home.. and it did just perfectly..

I think I have everything dialed in now.. just need to pop that motor out and drop in the spare engine, and rebuild the now broken one.. the now broken engine was donated from a 123 car that was hit pretty hard in the front, hard enough that the radiator support came back and hit the very top of the valve cover knocking a small hole in it, I carefully examined the chain and cam sprocket and ran a dial indicator on the cam sprocket to chack for a bent sprocket and everything looked fine, but I guess the crash imapct damaged it somewhere that I could not see. I probably ran the engine for about 4-5 hours before the chain broke but I had not put that much stress on the engine before. I will be putting the spare engine in and see what happens next..

dont have any performance numbers for you guys yet.. that was going to be the first attempt at top speed, she sure sounded good though.. pushing those throttles forward and the sound of a pair 617.951's turning up and the turbos spooling .. I think she will do pretty good when I get her back together

so .. everyone.. lesson here? go check your timing chain stretch and replace if nessesary, you do not want to hear the sound I heard today.. its not plesant ..

more updates (and photos) later..

-Jason

Jason Fraley
Tampa FL

1976 Mercedes Benz 300D
1987 Mercedes Benz 300TD sedan
1984 Mercedes Benz SL300D turbodiesel
2001 Dodge Ram 3500 4x4 Dually Cummins Diesel
1974 30\' Uniflite \"Salty Dog\" sportfisherman powered by (2) 617 951 MB turbodiesels
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post #6 of 41 Old 06-20-2005, 10:05 PM
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Ouch! Quite a setback, but it sounds as though it was one you were prepared for. I am eager to hear of the next test.

\'87 Mer-B 300D (220,000 miles) (sold)
\'93 Mer-B 300D (173,000 miles) (sold)
\'87 Porsche 928 (101,000 miles)
\'98 Dodge Ram quad-cab (250,000 miles)
\'2001 CLK430 Cabrio (50,000 miles)

Past cars: 1969 mercedes 250, 1981 300D, 1972 220D
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post #7 of 41 Old 06-25-2005, 08:43 PM Thread Starter
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well I updated the photo site with the photos from the first sea trial.. which is old news now.. the second sea-trial is when I broke the timing chain... but anyway some cool photos, and a short vid clip..

stay tuned.... more to come

Jason Fraley
Tampa FL

1976 Mercedes Benz 300D
1987 Mercedes Benz 300TD sedan
1984 Mercedes Benz SL300D turbodiesel
2001 Dodge Ram 3500 4x4 Dually Cummins Diesel
1974 30\' Uniflite \"Salty Dog\" sportfisherman powered by (2) 617 951 MB turbodiesels
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post #8 of 41 Old 09-18-2005, 08:41 AM Thread Starter
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just an update to the forum:

have broken-chain engine out and the replacement engine sitting next to it
with overhaul complete, just need to switch components over to the good engine and re-install. I am also changing the vibration dampeners, to a different setup which is going to require a bellhousing and flywheel mods to make it fit..

have not worked on it in a while.. and I am just now getting some time, I will really try to get the updated photos on the website on monday.

Jason Fraley
Tampa FL

1976 Mercedes Benz 300D
1987 Mercedes Benz 300TD sedan
1984 Mercedes Benz SL300D turbodiesel
2001 Dodge Ram 3500 4x4 Dually Cummins Diesel
1974 30\' Uniflite \"Salty Dog\" sportfisherman powered by (2) 617 951 MB turbodiesels
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post #9 of 41 Old 09-18-2005, 02:44 PM
 
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I just cant wait... Thats my favorite engine
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post #10 of 41 Old 10-12-2005, 09:34 AM
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Bump.

\'87 Mer-B 300D (220,000 miles) (sold)
\'93 Mer-B 300D (173,000 miles) (sold)
\'87 Porsche 928 (101,000 miles)
\'98 Dodge Ram quad-cab (250,000 miles)
\'2001 CLK430 Cabrio (50,000 miles)

Past cars: 1969 mercedes 250, 1981 300D, 1972 220D
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