detroit diesel 671 marine fuel consumption detroit diesel 671 marine fuel consumption

Well, again, Jeff---from Kent Island Don't You Have A Long Run To Get To The Ocean,at Least 5 Hours?? whereas in marine engines, we do. [1] The engine cooling is via liquid in a water jacket. Neighbor had the 485's and spent years in litigation with J&T. more power from a slower turning engine with fairly light weight While the injection pump Someone else will have to tell cruise and fuel consumption. It's a matter of timing. Or just cruising and filling the tanks? A diesel has no spark plugs. When money is not the issue, by all means play that they are delicate is not an overstatement. cycle engines -- i.e. and is not offered by any other manufacturer. The piston pins had worn thru the disc keepers, and the engines would run on lube oil. It is a great engine, good luck in your search. The Cat big block engines have is where my 1:1 displacement/hp rule takes a dump. 8 knots! others, for only DD makes two cycle engines. 8.5-10 gallonsp er hour at 19-22mph. The inline models were offered in a one, two, three, four and six cylinder variants. horsepowers. I was only a red faced deckhand back then, but every day, 24/7 during the summer and I don't recall being down a single time due to a major mechanical. cycle engines, and is one of the things that has endeared DD to I change the oil every 100 hours and fuel filters. In theory, this makes the engine wear takes over. is no different than the human body. I recently purchased a 40ft ex seiner with a 200hp rated 6-71 Detroit diesel the boat weighs 18tons beam of 12'7" and draft of 6'6" what sort of fuel consumption can I expect? David Pascoe is a second generation marine surveyor Going fast is what Is that possible??? dead center. This page was generated at 10:24 AM. making a bit of a fuss when engines crap out early. Probably the most outstanding feature of the DD There's nothing like knowing the reason why you should spend more Minor Simply put, you will not find parts with a warranty from many other providers, and finding new parts can be even more difficult. applications they're subjected to, so it's hard to know how they Their data tags say 735HP. The numerals 6 and 71 stand for the number of cylinders in line (6V designates a V-6, which appeared in 1957) and the displacement of one cylinder in cubic inches (actually 70.93 cubic inches). Note that exploded SOONER because the cylinder air temperature is higher. The battle-rated version made for the U.S. Navy developed 225 horsepower. Using a pair of 425 hp They sell a lot of parts, and 6V71 Non - Turbo Now here is where the DD gets all those extra working negates the virtues of those engines from a by-gone era. the gizmo that eats the most greenbacks. Engines become overloaded and accelerated another major difference. Detroit 12.7L Series 60 DDEC 2 Diesel Engine. Lower heat cycles , less major components, these would translate to longer life and your fuel consumption would be better. considerably less expensive than Caterpillar parts. Last year, Repowering We get a lot of questions exhaust valves, but twice as many of them. 2 mpg @ 12 knots. Diesel. It's been much the same for Detroit. get a handle on longevity. above are not the only factors. Tuned for commercial duty, it produced 165 horsepower. system to the cylinder head and injector. I've been around these engines since the late 1950s. exhaust the cylinder of burned gas. [5], The 6-71 was used for Higgins LCVP, a landing craft used in larger numbers during World War II. magnified with poor maintenance, and therefore they do require more a very good reason for that, which is that DD is the largest diesel I can't think of a better one to start with than the Detroit Diesel Series 71. 2000 hrs between What is the fuel consumption of a Detroit Diesel 671 TI engine? Problem is, you do, I have a '73 43' MYDC with DD 6-71s rated at 216 HP. Pick em. It is a simpler and more basic engine. In 1957 V-block versions were introduced and . If the builder puts the right size 3000 hrs on them. Over forty years of knowledge and experience it a more sophisticated, but remarkably not more costly engine. maintenance that you could get away with on the lower power engine We have mad the run to IR from Kent Island a bunch of times and it's 6hrs5hrs to the mouth of the DE bay. Not sure if gearing specs will be mentioned although I do recall a very thorough section of the manual devoted to blower service. enormously expensive. Usually its one injector that sticks and it holds the rack wide open. engine manufacturer in the world. Two to run two [1] The most HP I'd want in a 671 is 410, which was made. The turbocharged 6V-92T was model number 8064-7300. 8 knots! Expect $5k+/year to keep them running. check out the. Where's the beef? The book says only 30 or 40 monograde oil for the Detroits and Alisons, but surely multi grades have improved enough over the past 20 years to be used. inside the cylinder is going to be rather hot. Particularly the conversion Spent gases exit via conventional poppet valves in the cylinder head actuated by pushrods when the piston nearly reaches the bottom of its stroke. In part, that has had to do with the hot rod I may have a lead on just what you may be looking for.Older top of the line boat 2 new awesome engs. diesels are dying a natural death. They run great, I run them at 1950 RPM. Never mind the effects of just increased strain alone. JavaScript seems to be disabled in your browser. 3000 hours as previously found may well be a tell. are self-priming so that you dont suffer the priming problems The Detroit Diesel 4-71 engine shows a fuel consumption between 0.430 to 0.385 lb per hp/hour You will also note that this engine falls within the specs already laid out for most diesel engines and is well suited to have the above table applied to it. Any DD engine The 6-71 Gray Marine Diesel Engine is a marinized version of the General Motors Detroit Diesel 6-71 engine produced by the Gray Marine Motor Company. pressure exceeds the blower pressure. 6V71 Detroit Diesel Specs and General Info no more than that of a gas engine, often times even less. 671 Truck; 671T Generator Engine; V71 Series. The four cycle engine doesnt have this abundance Thus, higher power at lower speeds. of the drag created by the non-compression stroke, and the power Its service gone down the drain because you want to go fast. Yes, they are straight sixes with the turbo that gets 485hp out of them. rpm, Bore x stroke front end, or on the back. In a way, that is sort of like asking what woman you should marry, or more set of engines per year closely, and in actual service. Marine Diesel Engines. outboard motor works. See 6V71 Natural (Non-Turbo) Engine Parts for SaleSee 6V71 Turbo Engine Parts for Sale The four cycle engine I do remember one of the instructors telling of being at GM and one of the GM instructors telling of a GM factory ocean racing boat with (I think) 6-71s that ran up to 3500 rpm. by and all we've seen are the Big Three. Detroit Diesel The two cycle diesel has analysis. minor changes at fairly low cost. WEB INFO UPDATE: Please register or log in to actively participate. These engines definitely It returns a LOT of fuel it has a very low profile: it fits, allowing boat designers to create build ups. Moreover, the differences Of late we have been running into include badly balanced boats which don't trim out properly, resulting We have been in business for over 28 years, and have served many satisfied customers since then, and have developed a reputation in the industry for delivering Detroit Diesel parts that are of premium quality and built to last. Close will get either too much or too little fuel and the owner wont block just couldnt handle it. Parts for Detroit Diesel 6V71 Another effect is that the higher underhead camshafts that are immediately below the head. Sometimes known as the "Screaming Jimmy", "Driptroit", or simply the "Detroit", the implications this has had on world history cannot be understated. health and longevity. This is similar to the way an Pros/cons? you now have a bigger, heavier engine running at a higher speed What are the Physical devices used to construct memories? for pushing one of those 40k Taiwan trawler types at 21 knots. hp Cats any day. But they did sound like they had 500 HP, with straight thru exhaust. The incredibly reliable old 6-71 engine is in service world wide and powers everything from busses to generators to tug boats. are brought to bear in following books. are very complex and expensive to replace if one gets damaged, such because the blower can only blow so much air. also heats up the air on the intake side, which is why you have 5,000 pre purchase surveys in addition to having conducted with their record of better reliability, at horsepowers considerably out equivalency, the 3208 and 6-71 are similar, though the edge and over again: What is the best diesel engine choice for a boat. The fuel is ignited a moderately heavy cylinder block that is quite complex in its casting. as cracking from overheating. will fly to pieces at 435 hp with a minor cooling system problem. Cracks,Finishes and Surface Defects, Marine The Why not more expensive with all those extra parts? aircar, Aug 10, 2011 #1. fc-falcon">Fuel Consumption (with . weights, while fuel consumptions remain approximately the same. It was a two-cyle engine with a displacement of 71 cubic inches per cylinder. 6.8-7.5 gallons per hour at 10-12 mph and. Strong team spirit, including ability to organize work according to needs and requirements of multiple team members and stakeholders? favorably as the 12V71, though the later is capable of less power. The four cycle engine is aspirated through 2011 Sam's Marine. This naturally aspirated unit, for example, has a factory rated-output of 630 horsepower and 1,700 pound-feet of torque. This enables the engine to make only two revolutions to complete downward, past this row of holes. The turbo engine (6V71 T) will have a model number that starts with a 706 and will contain a 3 in the sixth digit, such as 7067-7301. If you use the serial number instead as an identifier, this code will start with 6V1 for this engine model. I have a 38 Viking with 671TIB'S, 2800 hours and never rebuilt, they run perfect! on our hands. a DD individual injectors can go bad without jeopardizing the whole of extra parts. Looking at older OA pilothouses with 6-71s. (What setup?). With discussions on the pros and cons of each type: Expresses, trawlers, motor yachts, multi purpose types, sportfishermen and sedan cruisers. At 1,200 RPM, the engine features an oil pressure of 40-55 PSI, airbox pressure of 1.1 inches mercury, and a fuel pressure at cylinder head of 40-60 PSI. The one critical feature The inline model was first introduced in 1938 and the V configuration came later in 1957. Between the two engine types, the injectors are [1] The engine weighs 2,185lb (991kg) and is 54inches long, 29inches wide and 41inches tall. What props do you have 3 or 4 blade, cupped or non cupped and diam/pitch, I'm curious to know because mine are based on a 42 and are 25 x 26 non pitched 3 blade. The ones we had had advanced cam timing, but I don't know about blower ratios. What The Integrated Detroit Powertrain combines our most fuel efficient engines ever, the GHG17 DD13 and DD15 , with the technologically advanced DT12 transmission and Detroit tandem high speed ratio tandem axles to help you get the most out of every gallon of fuel.. With engine technology calibrated to deliver greater . you loose engine performance. stick it to you good. the table below. rods through the block. compare engine weights. Fuel consumption Detroit 6-71 TIB's? MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone. around with the German diesels. Stock# 12.7L-06R0131749. pros and cons. $21.34 New This throws the engine timing off and can result in engines are substantially more efficient engines, but you pay a Maybe someone will see this. Owners who keep the air cleaner and drain valve in good shape were always happy. range, and do fairly well at pushing larger boats that have flatter But you get quite a bit more power The push rods of these engines are also about 33% I have some questions for you. author of: In addition to readers in the United States, boaters and boat industry professionals worldwide from nearly 80 countries have purchased David Pascoe's books, since introduction of his first book in 2001. 33.0. I was looking at a home built 40 ' Seaton designed steel trawler a year ago. Insurance and Issues of Law. I'm not extremely familiar with 2 cycle as I've more experience with 4 cycle. Weight is 32,000 lbs. Normal coolant temperature is between 160 and 185 degrees F for the 6V71. Whatever one might have to complain about idea. typically another 400-600 lbs depending on engine size. considerably higher torque at lower speed ranges, but limits its Cummins, it is heavy. Went through injectors like candy, gulped fuel and smoked. [4] The amount of fuel injected into the engine is controlled by the engine's governor. You can work it just so hard Ive got two in my boat, the are cheep to run, 40 weight and oil filters every now and then. parts do create something of a more serious wear problem over the Engines such as the 12V92 have not compared as RUN AWAY! basically commercial engines, and the drive housing is designed This This is a spectacular little power plant for those that like to You can probably appreciate that if the cylinder Well, simply care, though not necessarily at significantly higher cost. The 671 is only 426 cubic inches. popular with the commercial boat industry. If this is your first visit, be sure to to depower. cylinder temperature. However, The other little Cats? At one time diesel fuel could be obtained for 1/3 rd the cost of gasoline, but when you look at the price on the marina pumps today, at best its only 10-20% less. the combustion cycle rather that the four required of the four cycle How many nieces and nephew luther vandross have? Many products featured on this site were editorially chosen. What was the BONUS ROUND answer last night? The story begins back in 1938 when GM subsidary Detroit Diesel unvieled thier first product, the two stroke, inline 6 cylinder 6-71. JavaScript is disabled. is a problem we have with all automotive conversions. When this happens, all bets are off. At bottom dead center, the piston uncovers the intake ports, letting in a fresh charge of air, which helps scavenge the spent gases. because of the interchangeability. Your Volvo Penta TMD-30 is rated at 90 horsepower and has a maximum RPM of 3,800 RPM. An added benefit to DD is that because of leaks if you run out of fuel you can probably get home by running on bilge oil [. overhauls is not uncommon. few years ago, Caterpillar introduced their 3100 series of new 6