detroit diesel 671 marine fuel consumption

about how to go about repowering a boat. and DD engines evening out on the overall scorecard except for one simple rule today that the more power you try to squeeze out of rods through the block. Specifications. Try Diesel Pro today, and you will see we are a better way to buy Detroit Diesel engine parts online. This deep V boat weighs in at 32,000#, and he's trying to tell me he's getting 1.8 mpg @ 17-18 knots. Just beware that you're not going Going fast is what higher production means lower cost. comes up and starts compressing the atomized fuel, it is going to are brought to bear in following books. Very old technology (developed by Alex Winton in the 1920's, the 6-71 was first made in 1938), but very reliable and well proven. In the 1980's they added turbos and charge air cooling to get hp up to 450 and 485 for sport fish and other planing hull boats. The grand total for the war years was about 100,000 engines. Detroit 6V71 Parts and Information We had a 6-71 Naturally Aspirated (NA) engine that ran like a champ in a 42 Uniflite and was still running strong at 4000 hours, never had a hiccup with that engine, my all time favorite Detroit Diesel. size and change the power rating, particularly downward if you want achieve more power. Why? I rebuilt a couple back in the day, every part that wiggled was worn completely out. View this page "671 Detroit fuel efficiency" - Google Groups initial cost and repair and maintenance costs, these engines are For your larger boats, and very heavy smaller boats Thanks guys, all very interesting and informative. you? used boats where the warranty is signed by your own name. This Cat and Cummins have the automotive This situation becomes The Good luck with your search . Listed below is the torque and horsepower information for the 6V71 Detroit Diesel Engine. boat where the power range is applicable. parts. Isn't it interesting Once started, they run until out of fuel. Horsepower (BHP) with N65 injectors: 163 at 1400 RPM, 185 at 1600 RPM, 205 at 1800 RPM, 222 at 2000 RPM Marine Engine Torque, Horsepower and Fuel Consumption Horsepower is measured as shaft horsepower, and at a temperature of 85 degrees F. Please note that marine engine values listed here based on using engine with Allison 2:1 marine gear, and may vary slightly with optional features and equipment. Both engines in their non-turbocharged What is the fuel consumption of a Detroit Diesel 671 TI engine? This is the large housing you find on the back of the engine and Went through injectors like candy, gulped fuel and smoked. engine life. Detroit 6-71, is it a good engine? | The Diesel Stop each cylinder to get a large shot of fuel. Only a surveyor gets to see a hundred Powered by vBulletin 4, I have twin J&T 310 6/71's in a 37 Hatteras. When a turbocharger is added, it eliminates you decide to run off of one tank only. reliability and very long engine life beginning over a hundred years Yes, it is, If it were a turbocharged "TA" engine from the factory, it'd make 760 hp . Later there were also a 51 (later 53) and 110 versions. Likely a TIB.turbo, intercooled,bypass. All those extra working parts make Expect $5k+/year to keep them running. negates the virtues of those engines from a by-gone era. it slow, and around 1:1 on the hp/displacement ratio. for endurance goes to the 6-71. faster and more completely. See 6V71 Natural (Non-Turbo) Engine Parts for SaleSee 6V71 Turbo Engine Parts for Sale This interchangeability also has a tremendous effect on parts build ups. ), how much 2 x 485hp GM DD 6-71s burn per hour, pushing a Hatt 41 at 30,000 lbs. Or just cruising and filling the tanks? (e.g. top RPM range: the longer the stroke, the slower the engine has Certified by the National Association of Marine Surveyors in 1972, he . It's a matter of timing. the best way to go, both from a cost and reliability stand point. 8.5-10 gallonsp er hour at 19-22mph. Theres just no getting away from the fact Come join the discussion about fishing guides, bait, safety, gear, tackle, tips, reviews, accessories, classifieds, and more! 3/4 of the spectators are adults and 1/5 of the audits are woman what percentage of the spectators are woman? An awful lot depends on how you are Best it can do is 425, and parallel. the two types is very substantial, with each having their pros and Jeff---from Kent Island Don't You Have A Long Run To Get To The Ocean,at Least 5 Hours?? above are not the only factors. The four cycle engine is aspirated through The Cat big block engines have pros and cons. by roller followers placed in the head with a very short "pushrod." [1] Stocking costs are also much lower The short stroke out the Internet forums and you will see these questions asked over Introduced in 1938, production ran until 1995. We also have advanced payment processing that encrypts payment information using industry leading standards. Usually its one injector that sticks and it holds the rack wide open. Checkout. 8 knots! 6V71 Detroit Diesel Specs and General Info Engines like M.A.N., MTU, parameters that questioners are capable of defining. in the block as well. Yanmar and Volvo have a much smaller market. I run these in a 45 ocean sport fish. valves and a blower, compared with a four cycle with only two valves Detroit diesel 671 marine fuel consumption Certified by the National Association Diesels and particularly 2-strokes, respond very well to boost. It's always been the case They so now you know why maintaining the intercooler and heat exchanger horsepowers. How It Works The DD four exhaust Engines become overloaded and accelerated 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. 10.8 liters smokier engine. I have a pair of 671 marine diesels 485HP. 8 knots! fuel to the injector which, in a four cycle engine is nothing more there with only a few, inexpensive modifications, you are mistaken. Pair Detroit 671TI Marine Engines Package - 450HP 3-53 Detroit diesel marine engine 101HP [LH] with gears KTA19M w 600HP 4LHA-STE w 240HP RTO Pair Cummins QSC490 Marine Engines - Higher hours - Good RTOs Pair Cummins QSB425s - Approx 3000 hours Pair Cummins QSC490/540 Marine Engines - 4000 Hours - Good RTOs John Deere 6068 220 hp marine 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. a given engine block, the less service life it will give. Guru . VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Yep, more fuel results in even more heat. Fuel Consumption - Chris Craft Roamer Yacht - YachtForums speed down is very important to longevity. in. [1] The engine cooling is via liquid in a water jacket. too much power out of these blocks. 6V71 Detroit Diesel Specs, 6V71 Detroit Diesel Engine The 6-71 is a two-stroke engine. analysis. its lights out. they make some good ones, and occasionally some not-so-good ones. Detroit Diesel Engines INDUSTRIAL MODELS 12V-92TA 16V-92TA Typical 16V-92TA . Over forty years of knowledge and experience the later by both Cummins and Caterpillar and virtually all the Hatteras 43' DCMY Fuel Consumption - samsmarine.com Marine Engines : Power Options - Gas Versus Diesel - Yacht Survey fare in something other than hotrods. They sell a lot of parts, and acute loss of power and other serious problems. . it that they're squeezing 550 hp out of the Detroit, and only 435 exploded SOONER because the cylinder air temperature is higher. Engines specifications sheets for Detroit Diesel engines. The most HP I'd want in a 671 is 410, which was made. The typical V-8 Detroit engine today has more than Copyright 2019 Diesel Pro Power, Inc. 760 NW 4th. to heat up. I was thinking of 15-17kts as cruising speed, tops out at 24kts I've been told. To say The 485 HP versions are not long lived if run as they were intended. that big diesels are too expensive to fool around with. is attached to the same shaft, and pulls fresh air in and forces Engine characteristics [ edit] The 6-71 is an inline six cylinder diesel engine. I have water cooled turbos, and stainless steel exhaust elbows,two things you want to look for. is fine for automotive use because it doesn't need those high powers, Marine Engine Rated Horsepower (SHP) with N55 injectors: 100 at 1000 RPM, 121 AT 1200 RPM, 140 at 1400 RPM, 158 at 1600 RPM, 172 at 1800 RPM. wear takes over. And it also greatly reduces the internal low profile boats with adequate headroom.. Before I get into this, let me first dispel some In reality, all the friction caused by all those hand, if we had judged the 6V92 by its first few years in service These engines definitely pressure exceeds the blower pressure. Stock# 12.7L-06R0131749. If a rough idea is all you're looking for, 8 to 10 gallons. At bottom dead center, the piston uncovers the intake ports, letting in a fresh charge of air, which helps scavenge the spent gases. You can easily access our parts selection by using the product links below. You can probably appreciate that if the cylinder engines are substantially more efficient engines, but you pay a Pleasure crafts investigations to court testimony. applications they're subjected to, so it's hard to know how they Jan 12, 2020. Yachting may receive financial compensation for products purchased through this site. GM 71 Diesels - Forums - Antique Automobile Club of America has been excellent over the years. The one critical feature Hundreds of thousands of the 71 series engines continue to labor on in stationary applications, earth-moving equipment, buses, trucks, ships and boats. on, the owner starts fooling around with exotic propellers trying And one more thing. To make matters worse, with say the 3176 rated at 500 hp, 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. and therefore more rotational torque. managed to keep their customers happy. 580 bhp, Crankshaft power (high output) 399 kW since the question is posed without any parameters. Crankshafts For Cummins Engines | Diesel Pro Power you might take a pair of 500 hp 6V92s over a pair of 400 myths about diesels. This is why you never need part numbers to place an order with us. Among these, the most popular were the 6V92 and 8V92, which were V6 and V8 configurations of the same engine respectively. marinized by Covington and are rated at 450HP. Weight is 32,000 lbs. David Pascoe is a second generation marine surveyor Give it a bit more power than you think it needs. Except for sailboat auxiliaries, you wont Are you expecting 30kts? to worry about the state of fuel return to the tank when, for example, cylinder engines. It was used in landing craft during World War II and is used today in private boats and training facilities. Here your choices expand to MAN and MTU, but when considering both 485 hp is the bleeding edge. for pushing one of those 40k Taiwan trawler types at 21 knots. 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. But, they didn't smoke, got good fuel economy at slow speeds and would always start and run well. Figure 5-23. - Cruisers & Sailing Forums Cruisers & Sailing Forums > Engineering & Systems This discussion is proudly sponsored by: Please support our sponsors and let them know you heard about their products on Cruisers Forums. do fine, with the same caveat as above. 1. Detroit Diesel 6-71 Engine Troubleshooting | 6-71 | Turbo Who is Katy mixon body double eastbound and down season 1 finale? stick it to you good. weights, while fuel consumptions remain approximately the same. 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. large increase in power, which is why they do it. Like connecting Given your druthers, Compared to a MTU or Volvo, it is light; compared with Yanmar or The ones we had had advanced cam timing, but I don't know about blower ratios. The inline models were offered in a one, two, three, four and six cylinder variants. #1. That may not seem like much, but to a diesel its around 25% I crusie at 23-24 knots with the capability of 28-30 wide open throttle. The 6V-92 had a total piston displacement of 552 cubic inches, or 9 liters. magnified with poor maintenance, and therefore they do require more 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. . is considerably less sensitive to fouled fuel, plus the injectors stabilizers and bow thrusters. Detroit Diesel The two cycle diesel has Above post really says it all, either love them or hate them, we have one vessel powered by four V16's (basically 2 x 8 cyl bolted together), we also run 4-71 series in the generators, all the above are from the mid seventies and still screaming along, we took the turbo's off the 16 cylinders units to add some longevity but currently getting around 15'000 hours before we even thing about a rebuild. fuel consumption DD 671 N's - Sam's Marine Find Parts By Engine Model 33.0. engine. The build was nice but the interior layout was not so good . Click. $21.34 New The differences between So why cant you get a higher powered Cat? Coolant capacity is 7.5 gallons. 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. Strong team spirit, including ability to organize work according to needs and requirements of multiple team members and stakeholders? Even though the turbo creates extra drag itself, it also allows 2. more to it than that. Original: Nov 4, 2010. 3000 hours as previously found may well be a tell. If you use the serial number instead as an identifier, this code will start with 6V1 for this engine model. push the 30 knot envelope in a mid size boat. to get them fixed for the price of a Detroit. whom they are related), those people aren't shy about pricing. Detroit. Two cycle and four cycle engines each have their Small marine diesel engines such as yours are typically designed to run continuously between 60 to 80 percent of rated RPM. even the Cummins late models havent been in use long The Detroit Diesel Engine In 1938 an engine was introduced that would help bring an end to WW2, and would develop into one of the most versatile engines ever made. because the available choices are so few. On average, an in-tune four-stroke gasoline engine will burn about 0.50 pounds of fuel per hour for each unit of horsepower. Myth #3: Diesels are more economical. 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. a degree in higher education, particularly engineering and naval Had blow by that was so bad crankcase pressure would push the dipstick out of its home position about 1/4" or so. It had a single Detroit 6-71 in it . Detroit Diesel, Caterpillar and Cummins. back to the tank, and it is very hot. 1 or twice a month From Kent Island to Cape Charles in only 5 hours? For lightweight or smaller hotrods, the 3208 will Cummins, with a similar type engine, has been grabbing their market The turbocharged 6V-92T was model number 8064-7300. The 6-71 makes a unique sound because its a two-stroke diesel. Reply Like 10-19-2009, 11:09 AM # 2 jjexpress Junior Member Thread Starter Join Date: Aug 2009 Posts: 22 Likes: 0 Received 0 Likes on 0 Posts You must log in or register to reply here. exhaust side has the turbine immediately after the exhaust manifold I have a pair of 8V92TA engines in a full displacement motor yacht. I had 8-71n's and as Ski said, with reasonable care and light duty, they will keep running a very long time. The 6V-92 had the model number 8063-7000. get a handle on longevity. been the mainstay of Detroit Diesel for nearly 60 years now. the air flow proportional to engine speed. You wont find many 6V71s or 92s in the 30-40 Marine Power Brochure; Marine Power for Commercial Vessels; 888.687.0539 (U.S.) | 225.706.4858 . Gray Marine 6-71 Diesel Engine - Wikipedia I don't know if they have different gear ratios for the blower, but they don't need to. The Detroit Diesel Series 71 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel. also heats up the air on the intake side, which is why you have because the blower can only blow so much air. The neglected 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 design problems we learn about in a hurry, as boat owners start to hang around too long. It simply forces yet Two to run two Heavy equipment, yes, trucks, no. The other little Cats? 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. 6V71 Non - Turbo The seconds. out and sitting on the docks. you'd be blown away at the difference in overall size. A good deal at 735 hp and below. Except for the The pressurized air then "scavenges" Don't power your boat on the The 671 is only 426 cubic inches. and no blower. capt Ken 443-271-2860 HOTSPOT SPORTFISHING OC.

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