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Completly refurbished Fresh Water Flybridge Motor Yacht Low Hours on DD 671 N's and 7.5 KW Onan No Blisters New Sunbrella Bimini Top and Fully Enclosed Isenglass aft enclosure. For those looking for a 43' motoryacht please review the following link for pictures of this fine freshwater quality...

Okay, I finally did an oil sample on my DD 671Ns with approx 1,400 hours of fresh water use using 40 wt DD oil, changed about 50 hours ago. The numbers are for port first then starboard. The onan 7.5 later with 1,000 hours. (wear metals) Al 2,10 Cr 0,8 Cu 0,1 Fe 6,45 Pb 0,19 K 0,4 Si 3,25 Na...

I have DD 671Ns and need to replace the raw water and coolent hoses. Several of these hoses have bends in them so I suppose I will need exact replacments. Anyone suggest a good source to contact?

I have DD 671Ns in a 80 mod. 43 DC. The engine temps have always been around 175 to 180 when RPMs around 1500 and above. Lately I have one engine creeping beyond 180 to 190 when running at 2300 which I generaly do not but sometimes will to clean bottom etc. I did notice that exhaust did seem...

1980 43 Dc I am ready to move on to the next level which promps the immediate sale of my Hatteras. I have refurbished this fresh water boat over the last two and half years and now ready to let it go. It is in excellent condition and has been under cover since new. Surveyed when purchased...

I have a 7.5 diesel onan with about 1000 hours. It has had its share of problems over the years, however a new one has poped up. It will start and run fine under moderate to heavy loads, however, resently it will suddenly bog down and barely even run or die. To offset this I quickly turn off...

I know there is alot of information on the forum about batteries, however I would appreciate hearing about a simple fix. I have 2 banks of 12 volt 8D batteries. and DD671Ns. I have an invertor and use it for the ice makers when running the mains primarily. I am going to replace one bank which...

I have DD671Ns and have now have an engine that is hard to start when cold(not run for several days). It will not light even after two or three attemps. I have to advance the throttle slightly to make it start and then immediatley throttle back to a confortable rpm to let the engine warm up...