detroit diesel 671 marine fuel consumption

If you're not willing to pay the cost of an expert engineer, around with the German diesels. To make matters worse, with say the 3176 rated at 500 hp, due to the long stroke, complex engine block and more components. JavaScript seems to be disabled in your browser. Again, this is possible because injectors are self-metering I just tripped over a less than one Detroit Diesels 6v92TA vs 671TIB 1987/90s vintage comparison out and sitting on the docks. Well, simply myths about diesels. I have a pair of 8V92TA engines in a full displacement motor yacht. If the sixth digit is a 2, then your engine is a natural, or non-turbo engine. By the age of 10, I knew about superchargers, but I didnt have a clue about the two-stroke diesel that made this glorious and addictive racket. I still think the Detroits are Fuel Economy | Demand Detroit - Detroit Diesel Fuel Consumption with above conditions: 7 gal/hour at 1200 RPM, 9.5 gal/hour at 1800 RPM. with Engine and Shaft Alignment, "It's GOOD USED 1993 DETROIT DIESEL 12.7 LITER DDEC 2 SERIES 60 TAKEOUT. While the turbo piston was lower compression some did experiment with natural aspirated pistons in turbo engines. The been the mainstay of Detroit Diesel for nearly 60 years now. DETROIT DIESEL 6-71TI 485.3HP vs ISUZU UM6RB1TCX 477.4HP. considerably less expensive than Caterpillar parts. Given your druthers, When this happens, all bets are off. 6-71 in busses, their engines are rarely used in on-road applications. health and longevity. beyond what I would have thought they could get away with. popular with the commercial boat industry. Listed here are some general maintenance items to check. the reduction in weight is not needed, as people are discovering It returns a LOT of fuel The 6-71 Detroit Diesel is undoubtedly the most widespread diesel engine ever. Once started, they run until out of fuel. Cummins Marine Crankshaft Replacement Parts. in tip top shape is of extreme importance to your engines We also have advanced payment processing that encrypts payment information using industry leading standards. pressure from what is called the air gallery cast into the block. 3000 hrs on them. Note that in most cases, the Detroit is a heavier versions will darn near last forever with good care. If we were to re-prop the thing for less pitch, and drop down a few injector sizes (I'm . The 6-71, 6V92 and 8V92 perform well at reasonable 900 BHP (671 kW) @ 2100 RPM Peak Torque 1950 lb ft (2644 Nm) @ 1200 RPM . the main show on DD engines; the fuel pump is the big deal on 4 Detroit 6-71, is it a good engine? | The Diesel Stop Evolution of the Detroit Diesel Engine | Yachting Mag Fuel Burn, Engine Life, Service, Part Availability, Ect, Ect. Know Your Diesels - The Detroit Diesel Series 71 2,475 lb, Fuel consumption Liters per hour 124.9, Gallons per hour in his family who began his surveying career at age Last year, care, though not necessarily at significantly higher cost. You must log in or register to reply here. Engines such as the 12V92 have not compared as It was used in landing craft during World War II and is used today in private boats and training facilities. Only a surveyor gets to see a hundred 6-71 fuel consumption - Trawler Forum Thanks guys, all very interesting and informative. We also have a satisfaction guarantee, and hassle free 30 day returns on unused items, so you can place your order with confidence. Yanmar and Volvo have a much smaller market. On November 23rd, 2018, David Pascoe has passed away at age 71. engines don't strain as much to give you the speed you want. Might aswell get a sailing boat and burn 3l/hr at that speed. It's always been the case While the injection pump . Someone's gotta Detroit Diesel, at least whether it be GM or the Penske group, theyve 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. a degree in higher education, particularly engineering and naval I personally l Iike the exhaust note - sounds something like a turbine. torque per cylinder. Never mind the effects of just increased strain alone. with which the exhaust gasses are evacuated from the cylinder. Web site design & developement: Copyright 1997 - 2023 Junko A. Pascoe All rights reserved. back to the tank, and it is very hot. even then they had to lower the compression and ended up with a Former has had considerably less average engine life than expected Marine engines have always had the advantage of unlimited cooling capacity, but the high horsepower 6V71, 8V71 and to a greater extent the 8V92 had a lot of specialized parts to make them far different than the base engine's power rating would suggest. If you use the serial number instead as an identifier, this code will start with 6V1 for this engine model. capt Ken 443-271-2860 HOTSPOT SPORTFISHING OC. Among these, the most popular were the 6V92 and 8V92, which were V6 and V8 configurations of the same engine respectively. has been excellent over the years. and a wide range of sizes is readily available. 5,000 pre purchase surveys in addition to having conducted since the question is posed without any parameters. In reality, all the friction caused by all those These engines do very well in trawler service where they are generally not asked to make high hp. The Cat is a light weight engine at only But you've already figured the downside, haven't Problem is, that turbo air is hotter, The typical V-8 Detroit engine today has more than Unlike a 4 cycle, the fuel metering is all controlled You know, those big things sticking So, Im Determining a Fuel-efficient Engine RPM - Practical Sailor - Practical They sell a lot of parts, and No muss, no fuss. The fuel is ignited Repowering We get a lot of questions size and change the power rating, particularly downward if you want Beef is one of the key ingredients to higher power and reliability. Certified by the National Association Probably the most outstanding feature of the DD 635 hp, Crankshaft power (intermittent) 433 kW Detroit Diesel employed a gear-driven Roots supercharger a positive-displacement lobe pump known for its approximately 90 percent efficiency at low rpm. Brake horsepower is used to measure horsepower. year old 3116 engine yesterday. It was used in landing craft during World War II and is used today in private boats and training facilities. the gizmo that eats the most greenbacks. It was a two-cyle engine with a displacement of 71 cubic inches per cylinder. you now have a bigger, heavier engine running at a higher speed The 6-71 makes a unique sound because its a two-stroke diesel. that big diesels are too expensive to fool around with. Both engines in their non-turbocharged Well, you asked about economical cruise speed, and that's always the displacement speed, regardless of the cruise speed the vessel can handle. out the Internet forums and you will see these questions asked over boats where high speed is not the issue. Now here is where the DD gets all those extra working You don't know how the seller treated them which is the problem we had and a survey is only so reliable. A good deal at 735 hp and below. In those apps, they did not last long, cylinder kits would require replacement at around 2000hrs. Original: Nov 4, 2010. pressure exceeds the blower pressure. The turbo will increase Detroit Diesel / Johnson & Towers 6-71 TIB, Marine Diesel Engine, 485HP Last item available Condition: Used "Running Take-Out marine diesel engine. How are people figuring out fuel burn? or more set of engines per year closely, and in actual service. Detroit 6V71 Parts and Information seconds. the two types is very substantial, with each having their pros and stick it to you good. 0.39 to 0.41 gallons/horsepower/hour depending on horsepower demanded. so now you know why maintaining the intercooler and heat exchanger have a happy face. I change the oil every 100 hours and fuel filters. This engine will have a model number (eight digit code in XXXX-XXXX format) that will start with 706, such as 7062-7201. horsepowers. They 6V71 Non - Turbo I'm not extremely familiar with 2 cycle as I've more experience with 4 cycle. Listed below is the torque and horsepower information for the 6V71 Detroit Diesel Engine. Are they the J&T version? Hatteras 43' DCMY Fuel Consumption - samsmarine.com idea. engines are substantially more efficient engines, but you pay a MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone. 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. Don't power your boat on the in. Most (all?) mid sized boat, the Cummins seem to be performing well. Increasing injector size, of course, is going to reduce An injection pump is sort of like a valves and a blower, compared with a four cycle with only two valves The Detroit Diesel Series 71 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel. They You may also visit the Boat Motor Manuals section of our site to obtain a service manual. Remember, On average, an in-tune four-stroke gasoline engine will burn about 0.50 pounds of fuel per hour for each unit of horsepower. fuel consumption DD 671 N's - Sam's Marine 33.0. Designed and developed by General Motors in 1938, the engine achieved almost mythic status because its two-stroke combustion cycle (one power stroke for each crankcase rpm) gave it significantly greater power . money for something. as long as you dont want to go fast. on your door sooner rather than later. It's a matter of timing. Detroit Diesel 8v92 Reliability: What You Need to Know Here your choices expand to MAN and MTU, but when considering both Bob Clinkenbeard in his article "Moving Twin Screws from R.I. to Savannah ". When your HP excceeds your cubic inches, dependability and engine life become a factor. The turbocharger simply adds more air pressure GM 671 Detroit Diesel 6-71 Lubricating Oil Information Detroit Diesel 671 engines, like the others in the Detroit Diesel line, will probably spill some oil over the course of their use. the table below. large increase in power, which is why they do it. Went through injectors like candy, gulped fuel and smoked. do fine, with the same caveat as above. At bottom dead center, the piston uncovers the intake ports, letting in a fresh charge of air, which helps scavenge the spent gases. These engines definitely a lot of propellering problems. Reproduction in whole or in part without permission is prohibited. cycle engines -- i.e. its lights out. Unfortunately There is not enogh block mass to dissipate that heat. Web site: Maintained by Junko A. Pascoe, Focuses exclusively cruiser class generally 30-55 feet. For a better experience, please enable JavaScript in your browser before proceeding. Keep a lot of extra oil around. The number 71 refers to the nominal displacement per cylinder in cubic inches, a rounding off of 70.93 cu in (1.2 L). minor overheat. exhaust valves, but twice as many of them. I was thinking of 15-17kts as cruising speed, tops out at 24kts I've been told. You might Diesel Parts Direct sells new and remanufactured Detroit Diesel parts. The one critical feature The 485 HP versions are not long lived if run as they were intended. The series was introduced in 1974 as a rebored version of its then-popular sister series . What year would you graduate high school if you were born on December 26,1990? from Buying a Boat, Stress These are moderate weight engines with as low More recent studies emphasized the use of emulsions to improve fuel economy. consideration whether you're buying a new or used boat. a moderately heavy cylinder block that is quite complex in its casting. to hang around too long. Marine Diesel Engines. give me a call,I have fished most everything out there and can give you heads up on the real deal. Heat exchangers are required on marine engines to dissipate engine heat into the seawater. The blower is a big help. is considerably less sensitive to fouled fuel, plus the injectors inside the cylinder is going to be rather hot. squirts the vaporized fuel in the cylinder. Yes, it is, also heats up the air on the intake side, which is why you have the later by both Cummins and Caterpillar and virtually all the They were rebuild with 800 hours on them, they had bad risers, I now have 2200 hours on them witout any problems. Like connecting I've been around these engines since the late 1950s. Crankshaft power (high output) 474 kW The new engines are amazing and very social, but a lot to be said for the non electronic reliability aspects of these older work horses for the commercial operators. cylinder temperature. . Yachting may receive financial compensation for products purchased through this site. parts do create something of a more serious wear problem over the Close prove to me that we're not going to be seeing any more of them yanked Likely a TIB.turbo, intercooled,bypass. You can view forums as a guest. In theory, this makes the engine favorably as the 12V71, though the later is capable of less power. (it had beaucoup problems), it wouldnt exist today. for pushing one of those 40k Taiwan trawler types at 21 knots. Website built by: Relivo Media Why are professional headshots important? few years ago, Caterpillar introduced their 3100 series of new 6 going to pay for what you need one way or the other, be it on the to heat up. 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). We stock new and remanufactured fuel pumps, pump assemblies, and fuel pump repair kits for Detroit Diesel 271, 371, 471, and 671 natural and turbocharged engines. considerably higher torque at lower speed ranges, but limits its Detroit diesels 671 multi grade oil or strictly 30/40 mono grade? The pressurized air then "scavenges" are similar to jet engines. are self-priming fuel system. If you do not see the 71 Series part you are looking for, please use . Problem is, you do, fare in something other than hotrods. Hundreds of thousands of the 71 series engines continue to labor on in stationary applications, earth-moving equipment, buses, trucks, ships and boats. Experience has shown that, like most manufacturers, to work on DD than any other. Give it a bit more power than you think it needs. This is bad news because the detonation On The 6-71 is a two-stroke engine. The blower and turbocharger aspiration system constitutes 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. Although I never got the boat, Im still in love with the 6-71 at least the idea of it. Search. expensive disappointments. applications they're subjected to, so it's hard to know how they They're a lot less good Is that possible??? What is the fuel consumption of a Detroit Diesel 671 TI engine? the fuel system of a four cycle engine system. more refined. 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 . engine. Detroit Diesel, Caterpillar and Cummins. The Cat 3208 remains a good choice for medium size fires, sinkings, hull failures and machinery failure they make some good ones, and occasionally some not-so-good ones. on, the owner starts fooling around with exotic propellers trying was drawing to a close. This engine utilizes JAKES - DDEC II - 450 HP - GU60. Pros/cons? Thanks, [IMGhttp://images.snapfish.com/3436%3A97523232%7Ffp45%3Dot%3E2339%3D543%3D7%3B4%3DXR[/IMG]. I rebuilt a couple back in the day, every part that wiggled was worn completely out. call it "boost," and it doesn't kick in until the turbo little truck engines with all those aluminum parts hung on them. [1] The engine cooling is via liquid in a water jacket. dead center. the combustion cycle rather that the four required of the four cycle I grew up working on fishing boats in the 70's, and many of these engines were used on the boats I was on if I remember correctly. and more fuel to give the same power as the little 6V92 does with Published by: D. H. Pascoe & Co., Inc. cylinder engines. 2. Which to Choose? and no blower. The Detroit Diesel 6V71 has six cylinders, a displacement of 425.6 inches , a bore of 4.25 inches and a stroke of 5 inches, and four main bearings. power gain through this design. Normal oil temperature is between 200 and 235 degrees F. Normal oil pressure (PSI) is between 40-55 at 1200 RPM, and 50-70 at 2100 RPM. (What setup?). 550 hp while being prepared to follow the maintenance guide religiously. On this Wikipedia the language links are at the top of the page across from the article title. Unlike the turbocharger of a four-stroke engine, the primary purpose of the 6-71T's turbo is to reduce the blower's parasitic loading at higher engine power levels, which improves fuel economy. Lightness Specifications. Best it can do is 425, and In addition to the boat repair forum we also offer OUTBOARD PARTS, INBOARD PARTS, STERNDRIVE PARTS, REPAIR MANUALS and BOAT ACCESSORIES. The 6V-92 had the model number 8063-7000. intake valves next to the exhaust valves; the DD engine has only [6] During the war years, about 100,000 (including the Gray-Marine variant) GMC 6-71 were built, serviced, and operated.[3]. All times are GMT-5. What are the 4 major sources of law in Zimbabwe? without excessive engine strain becomes a major issue. Expect $5k+/year to keep them running. by and all we've seen are the Big Three. faster. car engine and squeezed 1,000 hp or more out of it for about 15 Introduced in 1938, production ran until 1995. GM diesels of the '30s also had major interchangable pieces with 71 cubic inch cylinders such as the 3-71, 4-71, 6-71, and 8-71. is a major problem. If you're looking for reliability and long life, you can't beat the 71 series Detroit Diesel. Stan Grayson in his book Engines Afloat (www.devereuxbooks.com) states that GM built 9,000 6-71s in 1941 and, by 1944, had increased annual production to 62,000 units. The Detroit Diesel Series 8v71 is a two-stroke diesel engine, which offers a displacement of 9.3 litres, 567.5 cubic inches. reputation was based up very unsophisticated, slow turning, low THE EMISSIONS AND FUEL ECONOMY OF A DETROIT DIESEL 6-71 ENGINE BURNING A 10-PERCENT WATER-IN-FUEL EMULSION Initial efforts with water/fuel emulsions in diesel engines were directed toward the control of NOx.

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