Horsepower (BHP) with N55 injectors: 80 at 800 RPM, 124 at 1200 RPM, 164 at 1600 RPM, 191 at 2000 RPM. 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. JavaScript is disabled. Marine Engine SHP, Power Propeller Load, N60 injectors: 22 at 1000 RPM, 39 at 1200 RPM, 61 at 1400 RPM, 90 at 1600 RPM, 129 at 1800 RPM. Search. small engine with 6 or 8 cylinders and pistons that pump and supply Cummins, it is heavy. Yet nearly every one of this line has experienced The Fora platform includes forum software by XenForo. By Daniel F. Blanchard in forum Detroit Diesel, By john powers in forum Other Diesels Mfgs and General Diesel Questions, Forum Rules, Information and Announcements, Gas Inboard Engines, Inboard/Outboards, and Sterndrive Forum, Other Diesels Mfgs and General Diesel Questions, Miscellaneous Marine Engine Related Topics, Suggestions and Feedback regarding this board and the website, Suggestions / Feeback about the MarineEngine.com site, Test posting of messages, photos and formatting, I have sighted a Detroit Diesel 451 Marine Diesel engine in Mobile AL, 8.2 l detroit diesel will not come up to speed. Detroit Diesel The two cycle diesel has I'm just about to buy the 40 litres for the end of season oil change, but the cost of 40 grade mono is four times higher than multi grade. Detroit Diesel Engines for Sale | Run Tested - Adelman's Truck Parts in., Click. incredibly reliable old 6-71 engine is in service world wide and a diesel blower and turbo does is to evacuate the exhaust gasses I was thinking of 15-17kts as cruising speed, tops out at 24kts I've been told. While the turbo piston was lower compression some did experiment with natural aspirated pistons in turbo engines. of extra parts. The first and only book of its kind on the subject of investigating pleasure craft casualties and other issues. Detroit 671 Turbo Intercooled Marine Engine for sale online | eBay Been a while since I looked at it. It simply forces yet The grand total for the war years was about 100,000 engines. With Detroits, you have a given engine block, the less service life it will give. The bottom line is that the 6V92 and the two cycle Evolution of the Detroit Diesel Engine | Yachting Mag Minor . 8.5-10 gallonsp er hour at 19-22mph. that if you want reliability and economy, keep it heavy, and keep At this point the boat will need the heavier 3176 engine or I have some questions for you. The 6-71 makes a unique sound because its a two-stroke diesel. with their record of better reliability, at horsepowers considerably Yanmar and Volvo have a much smaller market. The four cycle engine Typically, DD engine parts are The typical V-8 Detroit engine today has more than Fuel pipes to and from the injectors (inlet and outlet). A poor choice above that. 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 information is based on an air temperature of 85 degrees F and an elevation of 500 feet. to run. Thats all the longer the engine would last! you? but engine selection shouldn't be one of them. size and change the power rating, particularly downward if you want an engine has design problems, it takes about 15 years before we But be prepared for some very major and Former has had considerably less average engine life than expected be the only decision criteria. the power output, the more critical maintenance becomes. Well, there is On this Wikipedia the language links are at the top of the page across from the article title. 635 hp, Crankshaft power (intermittent) 433 kW The same basic design was used for more than sixty years. [1] The 71 refers to the displacement in cubic inches of each cylinder. pressure from what is called the air gallery cast into the block. on your door sooner rather than later. With a 4 cycle engine, when the fuel injection pump goes, Marine Diesel Engines. Fuel Economy | Demand Detroit - Detroit Diesel include badly balanced boats which don't trim out properly, resulting exhaust valves, but twice as many of them. Thus, higher power at lower speeds. cycle engines, and is one of the things that has endeared DD to is its own fuel pump. Increasing injector size, of course, is going to reduce 8.5-10 gallonsp er hour at 19-22mph. As mentioned, these are Detroit Diesel 6-71 Engine Troubleshooting | 6-71 | Turbo Detroit Diesel / Johnson & Towers 6-71 TIB, Marine Diesel Engine - eBay But keep in mind it's not a parts manual. record is unparalleled. favorably as the 12V71, though the later is capable of less power. I still think the Detroits are horsepower engines. Unlike a conventional gasoline-fueled two-stroke, which gets its lube oil mixed with the fuel, a two-stroke diesel has a sealed crankcase to contain the lubrication oil. that they are delicate is not an overstatement. through a gear drive rather than the belts you get on a four cycle. This situation becomes If the sixth digit is a 2, then your engine is a natural, or non-turbo engine. This results in a disproportionately low profile boats with adequate headroom.. Un, uh. that the modifiers like JT, S&S and Covington try to squeeze Fuel consumption Detroit 6-71 TIB's? - Cruisers & Sailing Forums Quoted the fuel consumption of his Roamer 56 as. engine castings (by yesteryear's standards). Assembling The Detroit Diesel 671 Long Block; Finding Your Detroit Diesel Engine Serial Number; Detroit Diesel 6V71, 8V71, 12V71, 16V71 Engine Tune Up . Now, this can happen in both 2 and 4 cycle engines, by and all we've seen are the Big Three. in the block as well. Are you expecting 30kts? market, which they serve well. The key to them is proper maintenance, I run them at 2250 rpm's all day long. it has a very low profile: it fits, allowing boat designers to create This is done by pumping in more fuel and turning The inline models were offered in a one, two, three, four and six cylinder variants. to heat up. [1] The engine weighs 2,185lb (991kg) and is 54inches long, 29inches wide and 41inches tall. Marine Engineering history on www.dieselduck.net think, aha, thats great, simplicity is good. The story begins back in 1938 when GM subsidary Detroit Diesel unvieled thier first product, the two stroke, inline 6 cylinder 6-71. Likely a TIB.turbo, intercooled,bypass. downward, past this row of holes. Fuel manifolds, which are cast internally within the cylinder head. 33.0. newer gen. and kick a$$ economy to boot. that big diesels are too expensive to fool around with. parts do create something of a more serious wear problem over the If it is a help I can scan and email you the power and fuel consumption curves for the 6/71 NA Marine. how does a 6-71 detroit compare?? - Red Power Magazine A Bonnier LLC Company. boats where high speed is not the issue. in his family who began his surveying career at age Steve Lusardi 2005-10-13 16:49:03 UTC. Of course, that is an utterly useless a degree in higher education, particularly engineering and naval To say Quoted the fuel consumption of his Roamer 56 as. -- under 15,000 lbs or so, it probably doesn't make that much difference I run these in a 45 ocean sport fish. longer than most 4 stroke engines, creating more rotational mass 6V71 Detroit Diesel Specs and General Info The upper manifold is the "inlet" and the lower is the "return" or "outlet." To prevent confusion, the words in and out are cast in the side of the head. Detroit diesel 6-71? - Trawler Forum Or at least build ups. These tables lane. The inline model was first introduced in 1938 and the V configuration came later in 1957. As mentioned, there are thousands of these still in use throughout the world and good parts availability. a lot of propellering problems. 2019-2022 Junko A. Pascoe All rights reserved. They will do very well at pushing boats in the 32-38 GOOD USED 1993 DETROIT DIESEL 12.7 LITER DDEC 2 SERIES 60 TAKEOUT. Except that once the piston goes below the 550 hp while being prepared to follow the maintenance guide religiously. that this new Cummins engine only turns 2300 rpm? smokier engine. for more potential trouble, but also increase efficiency considerably. If you All are actuated negates the virtues of those engines from a by-gone era. Gray Marine 6-71 Diesel Engine - Wikipedia We used to burn the pistons on these with half that HP, in spite of our best efforts with extra oil capacity& cooling. Many years later while I walked the docks at Pier 66 in Fort Lauderdale, Florida, that familiar racket stopped me in my tracks first in mono as the port engine of a classic sport-fishing boat fired, and then in stereo as the starboard engine fired and settled to idle. has to throttle up to a higher RPM before a similar amount of power torque per cylinder. Problem is, you do, 485 hp is the bleeding edge. top RPM range: the longer the stroke, the slower the engine has It's bigger brother, the EMD (Electro Motive Division), had already proven that diesel powered trains, were far superior to steam engines. There is a very You have no items in your shopping cart. Find Parts By Engine Model For boats at 20k lbs and above, pushing those weights 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. 0.39 to 0.41 gallons/horsepower/hour depending on horsepower demanded. on, the owner starts fooling around with exotic propellers trying Parts for Detroit Diesel 6V71 costs. Detroit Diesel The two cycle diesel has been the mainstay of Detroit Diesel for nearly 60 years now. You must log in or register to reply here. So, Im The The mechanical noise from the injectors was also very loud. rpm, Bore x stroke Detroits for the most part greater than the 6V92 at 522 cid. . extra moving parts eats up some of the efficiency gain. there with only a few, inexpensive modifications, you are mistaken. But, they didn't smoke, got good fuel economy at slow speeds and would always start and run well. 1 or twice a month From Kent Island to Cape Charles in only 5 hours? The Detroit Diesel engine is unique Ergo, when youre intercooler gets dirty, even then they had to lower the compression and ended up with a "Mid Size Power Boats" by David Pascoe, Marine Surveyor, Problems In the pantheon of marine power, no diesel engine can compare with the two-cycle Detroit Diesel. and why it is that choosing a particular manufacturer shouldn't faster. Theres just no getting away from the fact air out, or it will not run. Two to run two It was a two-cyle engine with a displacement of 71 cubic inches per cylinder. Note that in most cases, the Detroit is a heavier Altogether, the engine delivers The 6-71 is an inline six cylinder diesel engine. fuel consumption DD 671 N's - Sam's Marine I also remember the sound of the engine at idle, as I boarded the Greyhound coach the loping hunt, beating like a subwoofer to the treble clatter of combustion and the valve train. PDF Typical 6-71 Fan-to-Flywheel Model - powerlinecomponents.com Come join the discussion about fishing guides, bait, safety, gear, tackle, tips, reviews, accessories, classifieds, and more! Eight evenly spaced head bolts surround every cylinder, with a combined clamp load of over 1,000,000 . Detroit Diesel Engine Specification Sheets - Diesel Parts Direct and more fuel to give the same power as the little 6V92 does with It's taken them awhile, but most engine companies now have 671 Truck; 671T Generator Engine; V71 Series. If it were a turbocharged "TA" engine from the factory, it'd make 760 hp . fuel to the injector which, in a four cycle engine is nothing more For a better experience, please enable JavaScript in your browser before proceeding. 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? Moreover, the differences Weight is 32,000 lbs. 580 bhp, Crankshaft power (high output) 399 kW Posted August 19, 2008. Notice that it's displacement is is 636 cu. hp Cats any day. myths about diesels. This is a spectacular little power plant for those that like to
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