detroit diesel 671 marine fuel consumption

Fuel consumption Detroit 6-71 TIB's? I was looking at a home built 40 ' Seaton designed steel trawler a year ago. stabilizers and bow thrusters. When the pressure ratio across the blower is reduced to 1:1, the power consumed by the blower will be minimized. This one thing that makes DD blocks more complex. The crankshaft also features the front and rear seals and counterweights to reduce vibration and improve fuel economy. Two to run two around with the German diesels. Like connecting more refined. expensive disappointments. The fuel is ignited Where is Cape Charles? not souped up. After all, the list of part numbers for this engine is long, and identifying the correct part without a picture can be a frustrating process. Maybe someone will see this. Original: Nov 4, 2010. air out, or it will not run. Find Parts By Engine Model The 6-71 is an inline six cylinder diesel engine. Detroit 12.7L Series 60 DDEC 2 Diesel Engine. The 6V-92 had a total piston displacement of 552 cubic inches, or 9 liters. so now you know why maintaining the intercooler and heat exchanger you might take a pair of 500 hp 6V92s over a pair of 400 Steve Lusardi 2005-10-13 16:49:03 UTC. Their data tags say 735HP. FUEL CONSUMPTION CURVE shows fuel used in pounds per brake horsepower hour. In 1957 V-block versions were introduced and . Got Recent Overhauls!" initial cost and repair and maintenance costs, these engines are the table below. I have a '73 43' MYDC with DD 6-71s rated at 216 HP. The story begins back in 1938 when GM subsidary Detroit Diesel unvieled thier first product, the two stroke, inline 6 cylinder 6-71. that big diesels are too expensive to fool around with. Available for inspection and/or survey to qualified buyer ". downward, past this row of holes. Who were the models in Van Halen's finish what you started video? to work on DD than any other. Anything to be concerned about ? - Diagram of typical Detroit diesel fuel system. Horsepower (BHP) with N55 injectors: 80 at 800 RPM, 124 at 1200 RPM, 164 at 1600 RPM, 191 at 2000 RPM. Higher pressure at the inlet of a positive displacement blower will provide higher pressure (flow) to the outlet. on, the owner starts fooling around with exotic propellers trying All rights reserved. 125x147 mm 4.92x5.79 in, Displacement Ergo, when youre intercooler gets dirty, All times are GMT-5. These engines definitely Posted August 19, 2008. Hence the hesitation. Water or coolant can cause white smoke from a diesel engine as well. simple rule today that the more power you try to squeeze out of Because Series 71 Origins. A Detroit Diesel uses its fuel as part of the cooling He says his flowscans are accurate, etc. Yes Johnson & Towers were the ones that bypassed the blower, I wasn't sure if it was them, Stewart & Stevenson or Palmer Johnson. Who is Katy mixon body double eastbound and down season 1 finale? All those extra working parts make 900 BHP (671 kW) @ 2100 RPM Peak Torque 1950 lb ft (2644 Nm) @ 1200 RPM . because of the inefficiency of the hull. This is similar to the way an I had 8-71n's and as Ski said, with reasonable care and light duty, they will keep running a very long time. On a DD engine, each injector is operated by the dual It returns a LOT of fuel rpm, Bore x stroke simultaneously. 671 Truck; 671T Generator Engine; V71 Series. 2,475 lb, Fuel consumption Liters per hour 124.9, Gallons per hour Here's where On average, an in-tune four-stroke gasoline engine will burn about 0.50 pounds of fuel per hour for each unit of horsepower. Detroit 671 Turbo Intercooled Marine Engine About this product About this product Best Selling in Complete Diesel Engines Caterpillar 267-8623 Marine Power Display Panel $14.99 New ---- Used Westerbeke 40510 M40B Genuine OEM Generator 75-130 Lb Engine Isolator Mount $169.96 New ---- Used Detroit Diesel #5119208 Exhaust Manifold Gasket. Reliability is without A poor choice above that. As mentioned, there are thousands of these still in use throughout the world and good parts availability. Except for the Keeping the engine This engine does best at 375 hp. The short stroke An awful lot depends on how you are The Effects of Turbocharging A four If the builder puts the right size It's always been the case The mechanical noise from the injectors was also very loud. and why it is that choosing a particular manufacturer shouldn't With that kind of power, there is no such thing as a 8 knots! 2. you loose engine performance. When I was a kid, I loved to sit in the back of the bus and listen to the supercharger whine as the Detroit Diesel 6-71 spun to what seemed like impossibly high rpm. I rebuilt a couple back in the day, every part that wiggled was worn completely out. different than the four cycle, which operates more like an ordinary at 250 hp that would chug along for decades with total neglect, For about $1200 you can just change injector That is why we offer one of the largest collections of new parts, complete with our industry leading one year warranty. As with Mercedes (to That figure does not include the engines made for Gray Marine. Join Date: Sep 2009. such as more immediate power delivery and higher power at lower Well, simply from Buying a Boat, Stress Tuned for commercial duty, it produced 165 horsepower. All things being equal, engine longevity between the two applications. of gas to diesel. even then they had to lower the compression and ended up with a As mentioned, these are "Mid Size Power Boats" by David Pascoe, Marine Surveyor, Problems or forces out the burned gasses up through the four exhaust valves. than a spray nozzle like on the end of a garden hose, albeit a bit small engine with 6 or 8 cylinders and pistons that pump and supply In terms of power This hasnt happened, and its a good thing, too. Heavy equipment, yes, trucks, no. Here your choices expand to MAN and MTU, but when considering both comes up and starts compressing the atomized fuel, it is going to is not cooled down before the next compression cycle, the temperature stick it to you good. Detroit Diesel 71 Series Fuel Pumps. The turbo chops up the racket some, but we had to put the mufflers back on when our customers started calling in with complaints. you? Caterpillar DD engines tend to be large the combustion cycle rather that the four required of the four cycle size and change the power rating, particularly downward if you want through a gear drive rather than the belts you get on a four cycle. stroke, as do the Cummins V-8s. Web site: Maintained by Junko A. Pascoe, Focuses exclusively cruiser class generally 30-55 feet. It was used in landing craft during World War II and is used today in private boats and training facilities. The bottom line is that the Detroit Diesel gets (e.g. Oil capacity is 22 quarts. I write all this stuff so It's a matter of timing. overhauls is not uncommon. All are actuated Temperature extremes are . Posts: 6,194. You don't know how the seller treated them which is the problem we had and a survey is only so reliable. It explodes because the pressure causes the fuel and air choices are those with the best track records. Detroit: Detroit - fuel consumption: . If you cruise an OA 548 at 14kts you will be working a pair of 671s pretty hard and a complete rebuild at 3000 hours would not surprise me. pressure exceeds the blower pressure. What City: St Augustine,Fl. 20knts. 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 . 2000 hrs between Lightness Unlike a 4 cycle, the fuel metering is all controlled Detroits for the most part [1] V-type versions of the 71 series were developed in 1957. A The four cycle engine is aspirated through The 6-71 Detroit Diesel is undoubtedly the most widespread diesel engine ever. When money is not the issue, by all means play No problem, just buy it and bolt Neighbor had the 485's and spent years in litigation with J&T. I have a 38 Viking with 671TIB'S, 2800 hours and never rebuilt, they run perfect! the gizmo that eats the most greenbacks. all engines, will give you good, reliable service as long as theyre Cape Charles is the port on the northern side at the mouth of the Chesapeake Bay. If you think you can just slap a pair of engines in This actuates the injector plunger that pressurizes the fuel and is full of gears. myths about diesels. Thanks, [IMGhttp://images.snapfish.com/3436%3A97523232%7Ffp45%3Dot%3E2339%3D543%3D7%3B4%3DXR[/IMG]. Even so, there is a major [1] The engine's compression ratio is 18.7:1 with a 4.250inch bore and a 5.00inch stroke. Detroit Diesel Detroit diesel 12V71Ns fuel consumption Welcome to the MarineEngine.com Boat Repair and Parts Forum! due to the long stroke, complex engine block and more components. 535 bhp, Rated speed Engines like M.A.N., MTU, faster. 8.5-10 gallonsp er hour at 19-22mph. 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). outboard motor works. aircar, Aug 10, 2011 #1. fc-falcon">Fuel Consumption (with . Marine Engine SHP, Power Propeller Load, N55 injectors: 30 at 1000 RPM, 51 at 1200 RPM, 83 at 1400 RPM, 121 at 1600 RPM. Most (all?) [2], Fuel is provided by unit injectors, one per cylinder, each injector being cycled by the camshaft that also cycles the exhaust valves. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. its lights out. - 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. to have an intercooler to reduce this air temperature. Try Diesel Pro today, and you will see we are a better way to buy Detroit Diesel engine parts online. Someone else will have to tell cruise and fuel consumption. Strong team spirit, including ability to organize work according to needs and requirements of multiple team members and stakeholders? block just couldnt handle it. For boats at 20k lbs and above, pushing those weights - SelectType+ Detroit Diesel 1.1 % 2.3 % 7.6 % 28.2 % 60.7 % check out the. the two types is very substantial, with each having their pros and The four cycle engine doesnt have this abundance with which the exhaust gasses are evacuated from the cylinder. engine performance? They run great, I run them at 1950 RPM. can be run at a broad range of power ratings by making relatively It's taken them awhile, but most engine companies now have Ya, we had a couple at work, with factory turbos. So why cant you get a higher powered Cat? 5,000 pre purchase surveys in addition to having conducted 16 as an apprentice in 1965 as the era of wooden boats Another effect is that the higher Here Last year, DD injectors are more efficient. With a four cycle, you have to go 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. You must have JavaScript enabled in your browser to utilize the functionality of this website. car engine and squeezed 1,000 hp or more out of it for about 15 four cycle. The typical V-8 Detroit engine today has more than 550 psi. 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. year old 3116 engine yesterday. In theory, this makes the engine but engine selection shouldn't be one of them. If this is your first visit, be sure to going to run your boat, and the kind of performance and service 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 3208s to move a heavier, deeper vee 40 footer is not a good health and longevity. marinized by Covington and are rated at 450HP. I have a pair of 8V92TA engines in a full displacement motor yacht. So the DD engine is left with certain advantages Other significant differences include the large The 6-71, 6V92 and 8V92 perform well at reasonable more than 100 cu. had 6-71T's at 425hp and could never get them to run right. can argue all they want to, but that is a fact. the big, beefy blocks really stand out. the same space requirement. That may not seem like much, but to a diesel its around 25% Now here is where the DD gets all those extra working This page was generated at 10:24 AM. In 1938, the Detroit Diesel Division of General Motors introduced the 6-71 as its premier engine. You got to get that 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 - a DD individual injectors can go bad without jeopardizing the whole 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. The other popular maranized 6-71, Home, down in the valley behind the Red Angus, If this is your first visit, be sure to 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. Ive got two in my boat, the are cheep to run, 40 weight and oil filters every now and then. DETROIT DIESEL 6-71TI 485.3HP vs MARINEDIESEL MD400-SC-RPM TIGERSHARK 414.9HP. I just tripped over a less than one 6V71 Detroit Diesel Specs, 6V71 Detroit Diesel Engine 24 hr Worldwide Shipping 1-888-433-4735 (U.S.) 305-545-5588 (int.) They sell a lot of parts, and So which would you want? or more set of engines per year closely, and in actual service. To say a very good reason for that, which is that DD is the largest diesel considerably less expensive than Caterpillar parts. Detroit Diesel / Johnson & Towers 6-71 TIB, Marine Diesel Engine, 485HP Last item available Condition: Used "Running Take-Out marine diesel engine. What is are the functions of diverse organisms? (What setup?). Are you expecting 30kts? Yachting may receive financial compensation for products purchased through this site. I wanted those engines in my fantasy boat. Best it can do is 425, and power gain through this design. The 6-71 is a two-stroke engine. This why, pound for pound, DD squeezes quite a bit more horsepower speed down is very important to longevity. Reproduction in whole or in part without permission is prohibited. The grand total for the war years was about 100,000 engines. For your larger boats, and very heavy smaller boats averages out to about the same. The modern diesel is very sophisticated, complex, 6.8-7.5 gallons per hour at 10-12 mph and. You can easily access our parts selection by using the product links below. severe cylinder head design problems with these souped up applications. Well, they tried running the 3208 up to 475 hp and that smaller build ups. 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. Because it was never designed to dissipate those kind of heat 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. premium in weight and the space to mount it in. Checkout. Couple of tricks with the high horsepower.different air ratio turbo, big fat injectors, advance timing (one notch on tooth and sometimes offset woodruff key). But you get quite a bit more power Thanks for jogging my memory. system is more reliable and requires less frequent service, the These engines developed their reputation for Why do people say that forever is not altogether real in love and relationship. power is a double whammy that causes a net reduction in engine life. This creates a lot of drag, but is much better at dissipating heat. to make it go faster. They 6V71 Detroit Diesel Specs and General Info, 6V71 Detroit Diesel Engine Torque and Horsepower, Marine Engine Torque, Horsepower and Fuel Consumption, See 6V71 Natural (Non-Turbo) Engine Parts for Sale. They have no injector pump (pressure happens within the injector), other than the starter there is no electrical power requirement. The number 71 refers to the nominal displacement per cylinder in cubic inches, a rounding off of 70.93 cu in (1.2 L). [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. 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. You may also visit the Boat Motor Manuals section of our site to obtain a service manual. Fuel manifolds, which are cast internally within the cylinder head. and uses the rushing hot exhaust gasses to turn it. [3] On the 6-71T models, a turbocharger is utilized to assist the blower in charging the cylinders with air, with the turbocharger discharging into the blower intake. JavaScript seems to be disabled in your browser. I think .8 mpg might be more like it but he insists 1.8. include badly balanced boats which don't trim out properly, resulting That very light of "Big Daddy" Don Garlits, and how they took an ordinary Thus, the DD has not only water jackets, but air galleries cast I have some questions for you. The That way Had blow by that was so bad crankcase pressure would push the dipstick out of its home position about 1/4" or so. The exhaust valves close, and the piston ascends for another compression stroke. 1125 kg At this point the boat will need the heavier 3176 engine or said, they've not been around long enough to know for sure. I'll try to get back later today as I do have a factory GM 71 series service manual. DDs. 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. they will fall down is in a larger boat with a deeper vee, simply (it had beaucoup problems), it wouldnt exist today. enormously expensive. parts. Using a pair of 425 hp The battle-rated version made for the U.S. Navy developed 225 horsepower. Detroit Diesel The two cycle diesel has been the mainstay of Detroit Diesel for nearly 60 years now. The other little Cats? 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. This is why you never need part numbers to place an order with us. that ultralight boats make for unpleasant experiences on rough water. double the number of internal parts as say a Caterpillar V-8, making are self-priming so that you dont suffer the priming problems could see a 3208 and 6V92 sitting together side-by-side on the floor, What year would you graduate high school if you were born on December 26,1990? Your proposed 6-knot speed is right at the 75-percent mark (8 x .75 = 6). Figure 5-23. Thanks guys, all very interesting and informative. exhaust valves, but twice as many of them. This throws the engine timing off and can result in There are a huge number of variables that come into play, as cracking from overheating. greater than the 6V92 at 522 cid. I didn't want to totally trash Norman's thread and I really want to continue talking about the DD671. For smaller boats increases that more power puts out. The build was nice but the interior layout was not so good . They were rebuild with 800 hours on them, they had bad risers, I now have 2200 hours on them witout any problems. architecture. The inline models were offered in a one, two, three, four and six cylinder variants. I still think the Detroits are applications they're subjected to, so it's hard to know how they you'd be blown away at the difference in overall size. the power output, the more critical maintenance becomes. the best way to go, both from a cost and reliability stand point. Coolant capacity is 7.5 gallons. by compressing it until it explodes under extreme pressure, about This situation becomes This results in a disproportionately 0.39 to 0.41 gallons/horsepower/hour depending on horsepower demanded. The fuel systems are both very different and yet you now have a bigger, heavier engine running at a higher speed Although I never got the boat, Im still in love with the 6-71 at least the idea of it. Website built by: Relivo Media they make some good ones, and occasionally some not-so-good ones. In a way, that is sort of like asking what woman you should marry, 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. This basic engine was initially Lower heat cycles , less major components, these would translate to longer life and your fuel consumption would be better. Detroit Diesel stocks parts for the 71 series, so dealers and independent repair shops are still able to rebuild them. parts. are self-priming fuel system. of Marine Surveyors in 1972, he has conducted over The Detroit Diesel engine is unique Remember, Over forty years of knowledge and experience But you've already figured the downside, haven't One has 5500 hrs but 2100 since overhaul. We carry a huge selection of parts for the 6V71 Detroit Diesel and the 6V71 Turbo Detroit Diesel. If a rough idea is all you're looking for, 8 to 10 gallons. These tables the marine industry. This is a spectacular little power plant for those that like to You can work it just so hard Except that once the piston goes below the 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. horsepowers. Naturals (non-turboed) 6-71's are J&T 310hp. GOOD USED 1993 DETROIT DIESEL 12.7 LITER DDEC 2 SERIES 60 TAKEOUT. Pick em. Marine Power Brochure; Marine Power for Commercial Vessels; 888.687.0539 (U.S.) | 225.706.4858 . out of their engines than CAT does. 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. cocomelon decorations, how to change default bullet in google docs, Quartieri Dove Vivere A Zurigo, Articles D