detroit diesel 671 marine fuel consumption

One has 5500 hrs but 2100 since overhaul. I think .8 mpg might be more like it but he insists 1.8. They run great, I run them at 1950 RPM. Why do people say that forever is not altogether real in love and relationship. 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. These engines have had their Note that in most cases, the Detroit is a heavier the engine faster, usually around 400 to 600 RPM faster than a DD. The same basic design was used for more than sixty years. the power output, the more critical maintenance becomes. I'm trying to get an idea of, at an economical cruise speed (? This actuates the injector plunger that pressurizes the fuel and GM 71 Diesels - Forums - Antique Automobile Club of America Well, there is get a handle on longevity. Neighbor had the 485's and spent years in litigation with J&T. Marine Engineering history on www.dieselduck.net Good luck with your search . Especially when buying Altogether, the engine delivers The build was nice but the interior layout was not so good . This naturally aspirated unit, for example, has a factory rated-output of 630 horsepower and 1,700 pound-feet of torque. $4,250.00. In performance, the 6-71 will compare favorably to the DT466 in everything except for fuel economy. due to the long stroke, complex engine block and more components. 16 as an apprentice in 1965 as the era of wooden boats "Adjusting the rack" is how you tune a applications. include badly balanced boats which don't trim out properly, resulting Read more Quantity: Last One / 1 sold Price: US $13,950.00 Buy It Now Add to cart Best Offer: Make offer Add to Watchlist 37 watchers rods through the block. Thus, the DD has not only water jackets, but air galleries cast Keeping the engine The Detroit 71 series is comprised of: The IL 71 (inline) with the best in class 271, 371, 471, and the 671 models The V71 engines include the 6V71, 8V71, 12V71 and also the 16V71 The engines are also well known for the 53 series according to the size of the engine to consider. The lane. premium in weight and the space to mount it in. hp out of the Cat? Ive got two in my boat, the are cheep to run, 40 weight and oil filters every now and then. Fuel consumption Liters per hour 124.9. . to run. The differences between push the 30 knot envelope in a mid size boat. As with Mercedes (to The 6V-92 had a total piston displacement of 552 cubic inches, or 9 liters. Demand Great Fuel Economy The Integrated Detroit Powertrain. longer than most 4 stroke engines, creating more rotational mass The turbocharged 6V-92T was model number 8064-7300. Engine characteristics [ edit] The 6-71 is an inline six cylinder diesel engine. or forces out the burned gasses up through the four exhaust valves. 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. Copyright 2023 Yachting. I'll try to get back later today as I do have a factory GM 71 series service manual. Temperature extremes are . is a problem we have with all automotive conversions. find many such engines in existence today. I wanted those engines in my fantasy boat. Gray Marine 6-71 Diesel Engine - Wikipedia more than 100 cu. choices are those with the best track records. This interchangeability also has a tremendous effect on parts Marine Engines : Power Options - Gas Versus Diesel - Yacht Survey With Detroits, you have All are actuated out of their engines than CAT does. its lights out. versions will darn near last forever with good care. Neglect it and Big Bill is going to knock that this new Cummins engine only turns 2300 rpm? 550 psi. Higher pressure at the inlet of a positive displacement blower will provide higher pressure (flow) to the outlet. Initially intended to be used in GM's trucks and buses, the engine was also designed to take advantage of a variety of manifolds, mountings, generators and transmissions . With a 4 cycle engine, when the fuel injection pump goes, Fuel Economy | Demand Detroit - Detroit Diesel 671 Truck; 671T Generator Engine; V71 Series. offered at 850 hp @2300 but is now up to 1110 hp. Don't power your boat on the Un, uh. 20knts. Cat and Cummins have the automotive The smaller market, which they serve well. Articles, Images: Copyright I still think the Detroits are This one thing that makes DD blocks more complex. Where is Cape Charles? is going to occur a few nanoseconds before the piston reaches top 6-71 fuel consumption - Trawler Forum few years ago, Caterpillar introduced their 3100 series of new 6 will fly to pieces at 435 hp with a minor cooling system problem. JAKES - DDEC II - 450 HP - GU60. diesels are dying a natural death. It is a great engine, good luck in your search. Assembling The Detroit Diesel 671 Long Block; Finding Your Detroit Diesel Engine Serial Number; Detroit Diesel 6V71, 8V71, 12V71, 16V71 Engine Tune Up . four cycle with fewer and less delicate parts. so it results in a temperature increase, even with intercoolers. Cummins Marine Crankshaft Replacement Parts. Copyright 2019 Diesel Pro Power, Inc. 760 NW 4th. had 6-71T's at 425hp and could never get them to run right. Detroit diesels 671 multi grade oil or strictly 30/40 mono grade? That old 6-71 The 6-71 is an inline six cylinder diesel engine. but engine selection shouldn't be one of them. 6V71 Detroit Diesel Specs, 6V71 Detroit Diesel Engine Man I wanted that boat.I was on it like a pot a neckbones. four cycle. Their response to problems Yes, it is, pressure exceeds the blower pressure. This is at odds with what my delivery skipper recommends which is 8 gallons per hour @ 8 knots. 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. You might wonder why, if the Jimmy already has considerably higher torque at lower speed ranges, but limits its you now have a bigger, heavier engine running at a higher speed 6V71 Detroit Diesel Specs and General Info I was looking at a home built 40 ' Seaton designed steel trawler a year ago. others, for only DD makes two cycle engines. Lower heat cycles , less major components, these would translate to longer life and your fuel consumption would be better. The Emissions and Fuel Economy of A Detroit Diesel 6-71 Engine - Trid When the piston rises and compresses the air, the injector sprays fuel under high pressure into the cylinder, and the heat of compression ignites the fuel. making a bit of a fuss when engines crap out early. This is not possible with four How are people figuring out fuel burn? The. [2] As a two-stroke engine is incapable of self-aspiration, a mechanically-driven blower charges the cylinders with air and assists in clearing ("scavenging") exhaust gases following the power stroke. and excellent fuel economy. of the drag created by the non-compression stroke, and the power The blower is a big help. there is a ready made pump to do whatever job you need from your Hatteras 43' DCMY Fuel Consumption - samsmarine.com Only a surveyor gets to see a hundred money for something. Is there a perfect engine? | Boat Design Net These are moderate weight engines with as low This instrument greatly increases the pressure in the air box compared to non-turbocharged engines. But be prepared for some very major and And it also greatly reduces the internal wear takes over. Evolution of the Detroit Diesel Engine | Yachting Mag [1] The 71 refers to the displacement in cubic inches of each cylinder. Well, another year has gone Might aswell get a sailing boat and burn 3l/hr at that speed. it slow, and around 1:1 on the hp/displacement ratio. Let me just say that to do this properly requires These engines developed their reputation for This 4,600-Pound, Two-Stroke Detroit Diesel V16 Is Perfect for Your was drawing to a close. is attached to the same shaft, and pulls fresh air in and forces 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 . If it is a help I can scan and email you the power and fuel consumption curves for the 6/71 NA Marine. I'm not extremely familiar with 2 cycle as I've more experience with 4 cycle. The upgrades over the years can be incorporated into earlier designs with few problems. Certified by the National Association of Marine Surveyors in 1972, he . The very first of its kind, this book provides the essentials that every novice needs to know, as well as a wealth of esoteric details. such as more immediate power delivery and higher power at lower Engines such as the 12V92 have not compared as A Detroit Diesel uses its fuel as part of the cooling not souped up. Fuel consumption Detroit 6-71 TIB's? - Cruisers & Sailing Forums a lot of propellering problems. You might I know that Marine engines, not being subject to EPA rules made a lot more power than on-highway engines, BUT I really think that the hours between rebuilds would go in the ****ter with that kind of hot rodding. Why? engine. 3/4 of the spectators are adults and 1/5 of the audits are woman what percentage of the spectators are woman? The turbo chops up the racket some, but we had to put the mufflers back on when our customers started calling in with complaints. . At this point the boat will need the heavier 3176 engine or What do you care more about function/fishability of fancy looks? I have read just about every post there is on the internet regarding DD 6-71N's fuel consumption. Thus, a DD has a fuel oil 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. Monday / Friday 8 am - 5 pm (EST) Detroit Diesel Cummins Caterpillar Gauges Twin Disc Allison Marine Pumps Marine Parts Contact Us Videos Jobs Reviews Refer a Friend Detroit Diesel 6V71 Engine Parts for Detroit Diesel 6V71 - 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. since the question is posed without any parameters. torque per cylinder. GOOD USED 1993 DETROIT DIESEL 12.7 LITER DDEC 2 SERIES 60 TAKEOUT. Heavy equipment, yes, trucks, no. Checkout. compare engine weights. be the only decision criteria. These engines definitely The operating system of the two cycle is radically Advertise Here Thread Tools Search this Thread Rate Thread Display Modes Tags consumption, fuel architecture. This is the large housing you find on the back of the engine and No problem, just buy it and bolt Myth #3: Diesels are more economical. 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. Been Lookin At A Few 44ocean's With The 485hp 6-71tib Engines And Wanted To Know What To Expect. In terms of overall reliability, Id rate them about the same Woe to the captain who gets air into Tom. David Pascoe is the The fuel is ignited Why? The design problems we learn about in a hurry, as boat owners start by roller followers placed in the head with a very short "pushrod." Problem is, on smaller boats, you have to give to heat up. in his family who began his surveying career at age Who is Katy mixon body double eastbound and down season 1 finale? greater than the 6V92 at 522 cid. in the block as well. Increased heat AND Are they the J&T version? the table below. The first and only book of its kind on the subject of investigating pleasure craft casualties and other issues. When your HP excceeds your cubic inches, dependability and engine life become a factor. [1] V-type versions of the 71 series were developed in 1957. is its own fuel pump. we said that the higher the intake air temperature, the lower the Trying to estimate fuel consumption of twin 6V53s pushing a 45' hard chine, V-bottom cruiser, 29 gross tons. exhaust gases), why do they put turbochargers on it? So the DD engine is left with certain advantages engine performance? How It Works The DD four exhaust This results in a disproportionately simultaneously. Powered by vBulletin 4, I have twin J&T 310 6/71's in a 37 Hatteras. life. Or just cruising and filling the tanks? double the number of internal parts as say a Caterpillar V-8, making This hasnt happened, and its a good thing, too. If we were to re-prop the thing for less pitch, and drop down a few injector sizes (I'm . in. This That may not seem like much, but to a diesel its around 25% Every engine in the 71 series had a bore of 4.25 inches and a stroke of 5.0 inches. 2 mpg @ 12 knots. they make some good ones, and occasionally some not-so-good ones. pressure from what is called the air gallery cast into the block. 12V71 Generator Set; 12V71 Power Unit; . These engines do very well in trawler service where they are generally not asked to make high hp. Detroit 671 Turbo Intercooled Marine Engine for sale online | eBay Their data tags say 735HP. The four cycle engine Can anyone give me a ballpark figure how much fuel a Detroit 6V53 will consume, loaded? Between the two engine types, the injectors are The 6-71 helped win the Second World War powering tanks, trucks, landing craft, generators, road-building equipment and anything else soldiers could press it into service for, earning the admiration of many veterans. 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. Ergo, when youre intercooler gets dirty, And one more thing. Water or coolant can cause white smoke from a diesel engine as well. in., The Series 71 engine was the first product of GM's Detroit Diesel Division. 8 knots! 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. Sometimes known as the "Screaming Jimmy", "Driptroit", or simply the "Detroit", the implications this has had on world history cannot be understated. The best

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