Detroit diesel 671 marine fuel consumption

detroit diesel 671 marine fuel consumption Matching pair Detroit Diesel 8V71TTI 485 HP Series Marine Diesel Propulsion 485 HP 2500 RPM setup for Marine Diesel Propulsion Heat Exchanger Cooled 998 reported Hrs since rebuilt these pair has been removed of an Sport Fisherman for re powering in excellent conditions with Allison MH 20R and 20L angle ratio 1. I burn a little over 8 gallons hour 10 This was another monster diesel a Caterpillar D343 this is a 14. detroit diesel mtu fuel coolers Exact replacements for Detroit Diesel MTU Fuel coolers and other Detroit Diesel MTU engine cooling devices are sold by Mr. 00 core charge which has been included in the price it means if you DO NOT have or will not send us the original part we will not refund the core charge. 00 Caterpillar 3208 TA Marine 16 850. Demand Great Fuel Economy The Integrated Detroit Powertrain. 4. Fuel continuously circulates thru the injector. mtu online. you do have a 3 71RA Blower Left and Exh Manifold Right side looking from the rear of the engine Marine Detroit Diesel Engine and they say that the 3 odd Cylinder engines run much smoother. In the case of the Detroit Diesel Series 60 435 DDEC IV 12. There is a 500. We Are a Leading Provider With a Large Inventory of New Remanufactured and Used Parts Along With Remanufactured Subassemblies and Engines. 03 exhaust housing HP is higher than rating and more efficient. Quiet and reliable the engine is ideal for customers seeking power between 110 250 hp or 76 kW to 186 kW. The 12. RE Detroit Diesel 671 injection rmw Mechanical 31 Jan 09 21 23 In 4 stroke diesel engines I always found burning oil to be bluish in color and white smoke to indicate unburned fuel such as when there were injector problems but I can 39 t specifically remember on the Detroits that I had to fight with. The products are offered for use the agriculture construction industrial marine mining oil and gas rail and vehicle market segments. 2207 Ref DS 10135 CONSUMPTION . 2 16. ebasicpower In 1989 Detroit Diesel produced the first electronic fuel injection system increasing horsepower again to 760hp and changing diesel technology forever. Detroit 71 Series 671 Tib 485 Hp herb smith 14 17 May 07 Reply herb smith 11 May 07 Steve I have J amp T 6 71 s 485 hp and I think they are great engines. 47. com Your Contact DaimlerChrysler Off Highway Detroit Diesel Series 60 Engine Spotlight . 6 GPH. Over 100 years of experience building high performance yacht engines. w o transmission 2000 DaimlerChrysler purchased Detroit Diesel and merged it with MTU. 2 Detroit Diesel 6 71 60 KW gen sets. 2500 gallon fuel tank. The fuel system is fitted with a fuel transfer pump a RH fuel filter that has service indicators and an electronic unit injector fuel system. Detroit diesel 12v71 twin turbo gen set engine running m95 injectors 700 hp at 2300 rpm Currently set at 1500 rpm Nice running engine Put it in your boat show truck compressor engine genset engine man cave Can supply video of engine running 14 500 with radiator or 12 500 engine only Have identical 12v71 twin turbo engine complete not running siezed from water in airbox 7 500 Any enquiries Wpowerproducts. The 6 71 Detroit diesel engine has a commercial horsepower rating of 165 and a battle rated version that generates up to 225 horsepower. Scroll to FUEL INJECTOR INFO CUTOUT and press the ENTER key. The incredibly reliable old 6 71 engine is in service world wide and powers everything from busses to generators to tug boats. Economy TTAE Chevron 39 s Delo 100 in the straight 40 WT. MTU Detroit Diesel Opens in New Orleans I have a pair of 671 marine diesels 485HP. I do like the old 2 stroke Detroit engines super reliable and big power but would not wanna feed one with fuel costs today. detroit diesel 671 for sale. Home. Would hate to buy the fuel Ran some 12V s on gensets on a job once but they used much more fuel than the Cat D277 39 s. 9 48. In a four stroke engine you have your intake compression power and exhaust strokes which take up 720 d 2 6 71 Detroit Diesel Marine Engine 24 500. per HP FSW 6. 0 liters per hour. 0. Today though many Detroit Diesel two stroke engines are being replaced with more sophisticated and more fuel efficient four stroke engines such as Detroit Diesels Series 60. Detroit Diesel 6 71TIB Exhaust Mixing Elbow JT3645 Stainless Steel Replacement HDI Marine part DET2 replaces Detroit Diesel Johnson amp Towers JT3645. Wish they had new pistons and sleeves for me. Detroit Diesel 12v71t Manual . per HP . 00 20. My experience with Diesel trucks is limited to owning 1999 Dodge 3500 w Cummins Detroit Diesel The two cycle diesel has been the mainstay of Detroit Diesel for nearly 60 years now. Marine industrial or automotive. borg warner sr4 4 speed manual transmission rebuild kits. Detroit 471 Diesel Engine For Sale Youtube . 1 Detroit Diesel 6 71 bow thruster. Tumse Dil Kya Laga Liya Humne Full Movie Hd 1080p With English Subtitles Watch Online To determine if a faulty fuel injector is causing the cylinder to misfire perform the following steps 1. Replaced voltage regulator. Detroit DDEC is a suite of innovative features that allow you to better manage fuel economy engine performance driving efficiency and maintenance. 2There are new heads availible and 3 there are new turbos that must be Detroit Diesel Fuel Pincher 82 Operators And 50 Similar Items . 190 Psv Seabulk Toota Seacor Marine . Detroit Diesel was once associated with General Motors during which time it was called the General Motors Diesel Division. Detroit Diesel 6 Detroit Diesel Marine with 6L71TI Engine. 440. The upgrades over the years can be incorporated into earlier designs with few problems. Diesel Spec Inc. By Tony Bullard 5 Years Ago Thanks it looked to me in the picture that they were hooked together. The big issue was the fuel economy and it stinks They tend to suck fuel when pulling a load. Detroit Diesel 8v92 Engine Specifications. That s the longest scheduled maintenance interval in its class. Instruments are mounted on a panel on the engine. The normal loaded In Gear Underway RPM is 1600 to 1800 RPM. 1. Detroit Diesel 2 cycle engines are self bleeding. This unit will provide an extra 55HP up to 135HP gain in usable horsepower and corresponding torque output with improved fuel economy and engine efficiency. 300 hp Diesel Engine Example GPH 0. Detroit Diesel is one of our most popular marine engine brands with utilization in vessels of all types. Details About Detroit Diesel Johnson Towers 6 71 Tib Marine Diesel Engine 485hp . Just out of drydock. Detroit Diesel Fuel Oil Specifications. gt one of the first techs in the Detroit Diesel distributorship to work gt on these units and have worked on many of them over the years. For more information contact Johnson 39 s Diesel Service Inc. The History of Detroit Diesel Corporation. 165kg. The 6 71 is a two stroke diesel engine with a six cylinder design and it features a displacement of approximately 70. Good reliable engines. They run great I run them at 1950 RPM. An efficiency gain of 1 MPG on a diesel truck driven 125 000 miles per year represents 12 000 in fuel cost reduction per year. You can easily access our parts selection by using the product links below. 00 Detroit 12V71N Marine 23 850. In the pantheon of marine power no diesel engine can compare with the two cycle Detroit Diesel. sea ray powerboats for sale by owner powerboat listings. Detroit Diesel was owned by General Motors until 1987 when the 2 product ratings DETROIT DIESEL 371 FUEL PUMP 471 FUEL PUMP 671 FUEL PUMP Covington Detroit Diesel 6 71 Intercooler Gaskets Qty. New marine carpet redone upholstery drink holders and full canvas enclosure allows for very comfortable cruising. 4 inch bore and a 6. She is powered by well kept twin Johnson amp Towers Detroit Diesel 671 TI 39 s with only 1646 hours with Capitol Marine Transmissions and a Westerbeke 8. Caterpillar Cummins Detroit Detroit Diesel 671 Manual. Calm conditions hold speed at 9 knots average for 100 miles. 2 280HP engine produces more torque at lower RPM. Detroit Diesel Heat Exchanger 23501212 3350 Injector Height Gauge Kits Injector Nozzle Cup Sleeve Tube Remover Installer For Detroit Diesel 60 Series Engine Repalce J 46904 amp J 48824 Heavy Duty Steel Black 8 PCS 4. As long ago as 1935 Detroit Diesel was using the unit injection pump which has become now the standard of the industry and many copetitors are using it in Reported fuel economy either decreases or increases again dependent on the water content engine type and design and engine speed and load. of 42800kJ kg 18390 BTU lb 2 3. lcm 8 wikipedia. 746kw 261. Originally conceived as a highway capable alternative to General Motors 39 large locomotive diesel engines the Series 71 proved itself to be worthy of use in a multitude of marine industrial and military recondition components many times over these engines will survive well into the next century. You may also reach out to us by filling out our online form. As far as performance the non turboed 71 and 53 series couldn 39 t help but lose power at higher elevations and the 92 39 s weren 39 t a lot better. 2 250. Gallons per hour 33. She also comes with a spare set of props. The new vessel is expected to operate in the Louisiana Texas Gulf waters with a certification of 200 miles Hi all I 39 m looking at buying an older truck for farm use with a Detroit 6 71 inline. The Detroit Diesel 4 71 engine shows a fuel consumption between 0. With over 50 000 medium and heavy diesel truck tuning performed Diesel Spec has built its reputation with countless satisfied customers all over the world. To view this site you must enable JavaScript or upgrade to a JavaScript capable browser. What was unique about this mill was that it was the brand 39 s first ever clean sheet design. The first number in the model series designation refers to the number of cylinders and the second 71 the nominal displacement per cylinder in cubic inches a rounding off of 70. New DSE controller to be installed by new owner and you will need a fuel Detroit Diesel engine series 60 introduced in 1987 was the first engine of its class to go below the . OT Diesel power boat engine size and fuel consumption question Take two same year same model same weight etc. With variations of horsepower and torque these heavy duty engines provide serious power for multiple uses. TEXACO URSA EXTRA DUTY SAE 30 40 50 The SAE 30 and 40 grades are also specifically recommended for use in two stroke diesel engines requiring highly effective control of wear and deposits. A complete line of Cummins parts and engines. 4 71 RC Detroit diesel Model 4 71 RC Power units With and without PTO 501 and 583 original hours since new. Series 8500 8600 Fuel Flow Interface System U. 7. Since 1968 West Marine has grown to over 250 local stores with knowledgeable Associates happy to assist. You will be charged at the time of purchase and will be fully refunded once your old re build able core is received I changed the fuel filters on my Detroit inline 6 71 today. See reviews photos directions phone numbers and more for Used Marine Detroit Diesel Engines locations in Houma LA. The 8V series apparently built more in the 71 cubic inch cylinders than the 53. 14. Visit our website at https bpi. Please note that this table is intended to be used as an estimate of how much fuel is burned during operation and is not an exact representation due to various factors including generator engine manufacturer model age and load. Detroit diesel engines are with best in class fuel economy and low cost maintenance and service. Gold Coast Power makes a reputation helping our customers find excellent quality and value in new and Used Diesel Engines and a wide variety of other products from such manufacturers as Detroit Diesel Caterpillar Cummins Allison Westerbeke and many more Whether you 39 re looking for a marine used diesel engines generator power unit or any Marine Commercial Marine Ndurance and Ndeavor Diesel electric propulsion for new Boskalis N Class vessels 25 November 2016 Royal Boskalis Westminster is a world leading expert in the field of dredging and maritime services. 39. Detroit Diesel 2 Cycle engines reflects strong heritage in Description. 00 Barr Detroit Diesel Manifolds 3 71 6V 71 4 71 8V 71 6 71 and 12V 71 All Models Direct Replacement DETROIT INDUSTRIAL amp MARINE . My engine is 350hp and my fuel. The tug is currently being built by Diversified Marine Inc. 0L. First there are three upgrades that you must make sure that you have. They wanted an engine that could haul hay to from and around the ranch while consuming as little fuel as possible. By optimising the torque curve the Detroit Diesel DD15 14. 05 sulfur fuel and may be used in all Detroit Diesel Series 60 engines. Gray Marine Motor Company in Detroit MI modified Detroit Diesel 6 71 engines for marine use on landing craft by adding a transmission and a heat exchanger as the central part of the cooling system. You can utilize this technology to better control speed assist in passing optimize idle efficiency and even reward your drivers for reaching fuel economy targets. Basic Power provides marine engines and parts new refurbished or used. 00 Detroit Blower 850. 340 39 200 1400 1600 1800 2000 2200 ENGINE SPEED RPM SILVER o 1200 2000 ENGINE SPEED RPM 2200 Rating Explanation RATED BHP is the power rating for variable speed and load applications where full power is required intermittently. 00 Detroit Diesel engine tools Tool Application Use 5869 Fuel System Priming Pump All Pressurizes the fuel system after service. Detroit Diesel 671 Service Manual 671 blower parts amp accessories ebay. 2L diesel to perform the heavy lifting. 2 series of engines. Detroit3 71 Detroit 4 71 Detroit 6v53 6v71 6v92ta . Learn more quot Detroit Diesel The two cycle diesel has been the mainstay of Detroit Diesel for nearly 60 years now. This is an entire marine construction company in one package. 9 1 Tolerance 5 per ISO 3046 Diesel fuel to DIN EN 590 with a min L. fuel consumption DD 671 N 39 s I have a 80 model 43 39 FBDC with DD671 N 39 s I think J amp T rated at 310hp. com Ph 208 234 4463 Fax 208 234 4724 In the case of the Detroit Diesel MBE 900 280 7. Detroit Diesel is a diesel engine manufacturer providing both marine and industrial engines with superb quality and reliability. Marine Diesel Basics 1 Maintain Winterize and Recommission explains all parts of the marine diesel system fuel lubrication breathing electrics stern gland propeller etc. Despite also has thousands of other applications and compatibility with many and strainer flexible fuel lines For a complete listing of standard and optional equipment consult your authorized Detroit Diesel Allison representative. High Hour Runner Caterpillar 3412E DITA 720HP Diesel Marine Engine. The usual oil loss consumption is around 1ltr 1200kms or so if the engine is in good condition They leak some too quite normal This is all due to the design of the engine and is but one reason why Detroit no longer sell them for new highway truck applications. Every step of engine design testing and manufacturing process leads to quality into every engine. 8 gal h 69. 0 KW generator. The engines offered by MTU Detroit Diesel include diesel engines for main propulsion diesel electric drives and for power generation. 6 liter 893 cubic inch six cylinder with a 5. 5. com. Detroit Diesel 671 Ti Manual . I have twin 671 detroit diesel jt engine On a 56 ft ocean motor Yacht open cockpit only gets 1500 rpm should be 2550 rpm under load bottom is clean fuel filters changed props are 28 28 should be 31 28 Detroit Diesel 671 Engine Ra Rebuilt Outright . MTU Detroit Diesel Opens in New Orleans I am looking to purchase a 36ft Egg Harbor with 2 1981 471 Detroit Diesel engine. HP 624. these two stroke engines are injecting fuel every stroke so you are not getting This chart approximates the fuel consumption of a diesel generator based on the size of the generator and the load at which the generator is operating at. Fax number 228 392 0096. Detroit 60 Series Diesel Specs 111l 127l And 140l . The primary at the tank was full of fuel as expected. I can t think of a better one to start with than the Detroit Diesel Series 71. 6 inches cargo hose Port Stbd. 165kg 0. 00 DOBLADORA 10 39 X 16GA 8 850. I rebuilt mine at 1200 hours even though they If it is a help I can scan and email you the power and fuel consumption curves for the 6 71 NA Marine. 430 to 0. Don 39 t expect good fuel economy. S. com MTU Detroit Diesel 13400 Outer Drive West Detroit Michigan 48239 4001 USA Phone 1 313 592 78 06 Fax 1 313 592 51 37 marine detroitdiesel. Engine Model 3412E DITA. Detroit Diesel Corporation DDC is an American diesel engine manufacturer headquartered in Detroit Michigan USA and a subsidiary of Daimler Trucks North America itself a wholly owned subsidiary of the German Daimler AG. LOA 175 Beam 40 Depth 12 Draft 6 9 Powerplant 2 D398 Cat main engines and gears. Start the engine. Add to Cart. 10000 Barrel Capacity. 93 cubic inches. gmc 2007 sierra 1500 pickup owner s manual pdf download. 8 41. 671 Ta 320 Hp . A Series 8500 8600 Fuel Flow Interface System combines a digital LCD Engine Hour Meter Tachometer Fuel Flowmeter and Fuel Totalizer in a single 3 3 8 quot diameter instrument which fits the panel space of a standard tachometer. Severe short and long hauls range between 25 000 and 60 000 miles. fuel you will probably side with parts and go ahead and burn the little bit of extra Detroit Diesel Series 71 6 71 8v 71 8v71ta Service Manual Detroit Diesel Series 71 Shop Service Manual 1020 pages pdf download Now fully revised and searchable pdf file many hours of editing done tnewcamp manuals adjustment tune up preventative maintenance and lubrication and repair including complete overhaul are covered. View and Download Detroit Diesel V 71 Series operator 39 s manual online. They work with the existing brackets hoses amp amp fittings etc. Detroit Diesel Engine parts find a wide range of direct replacement starters alternators water pumps and other Detroit boat parts Javascript is disabled on your browser. Displacement 180T lt 360 T fl Cruising range 850 miles light fuel consumption 34 USG hr capacities 3700 USG fuel total cargo fuel capacity if all spaces utilized 34 000 USG 200 USG lube oil 9564 USG fresh water cargo space 52 39 x 29 39 6 quot x 4 39 6 quot H additional space forward 22 39 x 14 39 4 quot ramp opening 14 39 4 Detroit Diesel. They are built with extreme horsepower and will get the job done efficiently. 8070 Fax 816. Sun Valley CA 91352 tel 818 252 7788 fax 818 252 7785 A Detroit is more than a diesel engine it 39 s a peace of mind. DDC Marine package Factory. Detroit Diesel Corporation is a subsidiary of Daimler Trucks North America LLC with its headquarters in Michigan. Among these the most popular were the 6V92 and 8V92 which were V6 and V8 configurations of the same engine respectively. The story begins back in 1938 when GM subsidary Detroit Diesel unvieled thier first product the two stroke inline 6 cylinder 6 71. More than 650 000 units of this model are in operation around the globe. The pump engine is located on the aft end of the barge. Typical 6 71 Fan to Flywheel Model an to ywheel models . View online or download Detroit diesel V 71 Series Operator 39 s Manual. The Detroit Diesel Series 71 is a two stroke diesel engine series available in both inline and V configurations. Initial efforts with water fuel emulsions in diesel engines were directed toward the control of NOx. The FloNET Interface hub takes current fuel rate values and broadcasts it to the network via PGN 65280 FloScan Fuel Rate and PGN 65281 FloScan Fuel Total . Air breathers cleaned. MTU Displays Latest Iron Men Engine. Mar Jun 76 Marine Dimensions inches mm POWERFORCE Detroit Diesel 2 Cycle Engines are completely remanufactured FUEL CONSUMPTION. Other possible effects such as increased fuel injector corrosion water dilution of the lubricating oil and the possibility of increased combustion chamber deposits have not been studied. They were rebuild with 800 hours on them they had bad risers I now have 2200 hours on them witout any problems. A proud tradition of building engines with strength quality and dependability began for Detroit in 1938 when General Motors formed the GM Diesel Division producing the two cycle Series 71 engine for construction military and standby generator use. can i get away with 3 8 copper line and fittings Largest end user direct distributor of parts for Detroit Diesel engines Twin Disc amp Allison marine transmissions and engine gauges. Hydraulic power anchor winch powered by 471 Detroit diesel with 2500 ton anchor. DETROIT DIESEL ENGINES MODEL DESCRIPTION 9122 7000 Marine 9123 7000 Industrial Fan thru Flywheel 7087 7900 Constant H. The boat has twin Detroit Diesel 6 71N 39 s 283 hp each and will cruise happily in the 8. Presently working. Here are some details about Detroit Diesel Series 92 engines according to Wikipedia. Better grade climbs acceleration better fuel economy and increased engine synchronization are all benefits truckers enjoy with performance Series 60 DDEC electronic control modules ECMs . Hatteras 52 39 s one with a pair of Detroit 6V92 39 s and the other with 8V92 39 s. Series 60 14. 385 lb per hp hour You will also note that this engine falls within the specs already laid out for most diesel engines and is well suited to have the above table applied to it. Please view our current inventory. 5148426 Detroit Diesel Intercooler LE5148426. What is the fuel consumption of a Detroit Diesel 671 TI engine Answers. 80 wt which covers the range of sulfur levels observed for most in use fuels. By oldspwr 5 Years Ago After much thought and discussion I decided to plug the vent that was pushing oil. Good day to all I am the proud new oner of a 1986 MCI 102A3 with a 8V92 TA amp 5 speed Allison Transmission with a Jake Brake it was a new bus converted by Custom Coach of Ohio. No injector pump. Created Date 4 14 2006 1 26 31 PM Detroit 71 Series 671 Ti Fuel Line euro1 5 31 Aug 11 Original Post 30 Aug 11 What size should the fuel RETURN line be for a 450 hp detroit 671. 2. 1 lb. We can help you reduce your fuel cost from 5 to 20 thanks to the fuel economy tuning. Detroit 82l Fuel Pincher Diesel Engine Service Shop Manual . You say 8. Isn 39 t it interesting that this new Cummins engine only turns 2300 rpm The 6 71 Detroit Diesel is undoubtedly the most widespread diesel engine ever. Regardless of the claims of new engines no other engines comes close to the longevity and adaptability of the Series 71 engine. Allison 5 speed auto Engine reported by seller to have been rebuilt in 2000 with around 145 000 current miles. Detroit Diesel 6 71 turbo not inter or after cooled that i can tell horizontally mounted near the center of the truck. 7L engine was favored in buses for its better fuel consumption. 8 560HP engine produces more torque at lower RPM. Required to bleed air from the system and provide correct fuel pressure. FUEL CONSUMPTION CURVE shows fuel used in pounds per brake horsepower hour. To place an order please use our secure online ordering. New muffler installed. com offers a wide range of new and used Detroit Diesel generator sets for sale at affordable prices. 0 exponent Typical applications Fast Yachts Fast Patrol Boats Police Craft and Fire Fighting They are particularly recommended for use in 2 stroke cycle diesel engines in transit buses and marine fleets running on low sulfur diesel fuel. Get more work done with fewer RPMs means big diesel savings every day. So I have decided to create a user submitted database of boats and their fuel economy. 15kg x 261. Detroit Diesel Engine Check out the best method of identifying the best set of diesel engine you own by checking the layout of the overall engine that you utilize. 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. Detroit diesel 12v71 twin turbo gen set engine running m95 injectors 700 hp at 2300 rpm Currently set at 1500 rpm Nice running engine Put it in your boat show truck compressor engine genset engine man cave Can supply video of engine running 14 500 with radiator or 12 500 engine only Have identical 12v71 twin turbo engine complete not running siezed from water in airbox 7 500 Any enquiries Detroit engines perform at their peak for miles and miles with best in class fuel economy and low cost maintenance and service. Detroit Diesel Division Of Gm In World War Two . Pump engine 671 Detroit deepwell pump. With this in mind replacing the oil is extremely important. 300 lb bhp hr specific fuel consumption and to exceed the 1 million mile in operation. 2 lb per gal. detroit diesel 6 71 fuel consumption. Call us at 574 213 5555 to learn more about our remanufactured Detroit Diesel diesel engines or to request a quote. per gal. Here is a Detroit Diesel 8V 53 as installed in a 1968 Chris Craft Roamer . The company s SCR in engine exhaust gas treatment reduces emissions and makes the M96 EPA and IMO Tier 3 compliant. At Marine Diesel Specialists and Gulf Coast Diesel Service we provide OEM parts repairs repowers and more for a wide variety of engines marine transmissions and marine diesel generators. Jimmy Rules Detroit Diesel 6 71 Yachting . I bought my current boat because of the DDs actually Grey Marine built in 1947. I don 39 t want to completely invent numbers but rest assured that at such speed you 39 ll have a much lower MPG which is what really matter at the end more than the GPH compared to what you can get at displacement speed. 4 x 300 7. 8 Marine Rare 671 MTU. Core Charge. 3. Detroit Diesel Serial Number Guide Sales 2018 04 26T02 22 20 06 00 DETROIT DIESEL ENGINE SERIAL NUMBER GUIDE Serial number of the first engine built in each year Engine Model Detroit Diesel 53 Series parts for 253 353 453 6V53 amp 8V53 engines. Page 1 of 2 1 2 Next gt Tom Spivak Well Known Member. is the leader in truck diesel engine ECM tuning technology. In 2004 the 14 Liter engine became the dominant platform in Freightliner over the road sleeper trucks and changed the ECM to a DDEC V. The seller started the truck and let me drive it and the engine seems to run really well 75 KW generator 671 detroit diesel 3500 BREAUX BRIDGE 75 KW generator powered by 671 detroit diesel engine 1259 hrs. Cummins Marine Diesel Repower Specialists Forums All Other Marine Diesels Detroit Diesel 12L series 60 825 hp This topic has 3 replies 2 voices and was last updated 1 year ago by Roger bing . Detroit Series 60 Power Module. Of the five million Detroit Diesel engines produced since 1938 it 39 s estimated one million are still in service. plough book sales engine. 380 1350 1300 1250 One important factor for me when I am looking for a new boat is the fuel economy. 7 435HP engine our truck chip tuning file is tailored for more horsepower and greater torque along with reduced fuel consumption. There are several versions of this but they make between 395 and 1 100 horsepower at 2 000 rpm. 430. Scroll to select NEW TEST and press the ENTER key. P. Top Supplier of Diesel Engines and Parts For Over Forty Years We Have Been The Ones That You Have Turned to For Comprehensive Support for Detroit Diesel 2 Cycle Engines . Every step of our design testing and manufacturing process builds quality into every engine that bears the Detroit name. 0 out of 5 stars 1 125. I 39 m rather far from Rome much nearer to 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. Sometimes known as the Screaming Jimmy Driptroit or simply the Detroit the implications this has had on world history cannot be understated. 460. If you re not as familiar with diesels as you are with gas engines and still think of diesels as smoke belchers just be aware that there s been a lot going on over the past several years when it comes to diesel engine technology for marine applications. Inspecting steel and repairing and replacing where required. Re 671 Detroit Diesel Marine high HP on the Road Yep high rpm engine and a lot of fun to learn how to shift one when married to a non synchro trans. 93 cu in 1. Yes . Detroit Diesel 4 71 Engine . This has earned the discharged oil the affectionate nickname of slobber. 1kw. Power units. 2 92. Category 3 engines are tested using methods similar to those stipulated by IMO MARPOL Annex VI E2 and E3 cycles of the ISO 8178 test . Thus at continuous full power 116 kW 2100 rpm it will use approx 25. 9 31. Introduced in 1938 production ran until 1995. V 71 Series engine pdf manual download. Regular Price 602. The FUEL VIEW fuel flow meters offer a compact lightweight and very cost effective solution for measuring your diesel fuel or oil consumption and operating time of vehicles boats tractors river vessels or any maritime mobile or fixed installations with diesel engines. sampige triangle kannada association. A marine diesel that shows a bit of smoke on start up is probably nothing to worry about but if it keeps on smoking after a few seconds of run time or starts smoking after it warms up or when you throttle up that engine is screaming to you to get something fixed. I have read just about every post there is on the internet regarding DD 6 71N 39 s fuel consumption. DETROIT DIESEL Analogue Page 3 of 11 8 MCS May 2014 1. 1499. Unlike the two stroke engine that most of us know from our experience with outboards which relies on atmospheric pressure to feed the air fuel oil mixture to the crankcase and the movement of the piston to open and close the intake and exhaust ports in the wall of each cylinder the two stroke diesel requires a supercharger to My favorite marine subject. For a fleet of 10 diesel trucks that means 120 000 saved per year. In your gt question the 71 series was popular to install in marine as it was a gt good engine in its time but with fuel economy and emissions leading gt the way these are not as environmentally friendly as the new Gear Set Blower Timing for Inline 371 471 671 Detroit Diesel 5192234 Blower Gear Set for Inline 71 Series Detroit Diesel Engines. 6 10. Welcome to the first in a series of stories relating to famous diesel engines of the past and present. I have an 83 39 boat with twin 671 naturals. Unit tested runs well. lt br gt lt Br gt In addition to Detroit Diesel Tools we carry Series 60 Diesel Engine by Detroit Diesel which has an innovative design to improve fuel 23514361CN Detroit Diesel marine replacement fuel cooler . We have been providing Florida s largest companies with power solutions for over 30 years. The Detroit Diesel Series 92 is a two stroke cycle V block diesel engine produced with versions ranging from six to 16 cylinders. 5 delivers big power in the smallest marine package for both propulsion and auxiliary applications. 6 71 Detroit Diesel Marine Engine. Electronic Heavy Duty Throttle Pedal Analogue output signal 0 5V 4 5V 0 05V Fitted with Hall Effect Sensor Two built in return springs Additional return spring built in the Sensor Angle options 30 35 or 45 MTU DETROIT DIESEL ENGINES. It s a re run if you watched all the episodes. GM never intended for Detroit 39 s 6. thanks to your picture . 03 to 0. 119 39 x 34 39 draft light 2 39 forward 3 39 6 quot aft draft loaded 3 39 forward 4 39 aft. 2 8. frmequiplist ed livingston. 00 . This is a huge compliment to the well renowned history of our Series 60 said Gregory Stohler director of marketing for Detroit Diesel. With complete galley and state rooms the vessel is ideal for live aboard projects in remote areas Lubricants meeting API Service category CH 4 are intended for use primarily with low 0. When you re buying a new boat or repowering an existing boat you may need to decide whether gasoline or diesel is right for your needs. water well rigs used water well rigs pre owned equipped with five water tanks for a total 19 000 gallon capacity can carry up to 8 000 gallons of fuel and has a 6 inch fire pump powered by a Detroit Diesel 4 71 capable of pumping 1 000 gpm. 4287 original hours since new dealer maintained Model 4 71T RC Detroit Diesel power unit Right hand rotation with Rockford PTO and shroud. And it 39 s been that way since their first engine rolled off the line in 1938. 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. In storage and out of commission for five years it is now up and running Call the diesel and marine transmission experts at Connecticut Diesel and Marine today at 203 481 1010. Defense Technical Information Center A 6 cylinder Detroit Diesel 671 running. 0 Liter Engine In 2001 the bore and stroke was increased which increased the engine displacement to 14 L 854 cu in with an increase in power output to 575 hp 429 kW and a torque increase to 1 850 lb. Detroit Diesel 2 stroke cycle engines enjoyed some popularity as a truck engine this popularity peaked in the 1970 39 s I6 71 8V 71 and 12V 71 and declined through the 1980 39 s 8V 92 . 00. 2 was manufactured by Detroit Diesel a division of General Motors at the time. 400. Detroit Diesel 12V 71 Marine Diesel Engin . 00 Detroit Diesel 671 Marine Motor 12 850. 762 ltr hr or 48ltrs hr. Sandblasting and painting 2. To meet the demand for a new type of engine that would help usher turbo diesels into this millennium Detroit Diesel a subsidiary of Chrysler AG introduced the Series 60 as its industry trump car. There are two types of engines that fall into this category 23514361CN Detroit Diesel marine replacement fuel cooler . What s more you ll benefit from yacht diesel engines and hybrid yacht engines that achieve enhanced power output while keeping the vessel easy to operate and safe to use. 7 435HP engine produces more torque at lower RPM. H. A Gal an hour will give 16 hp if properly set up so running at 125hp or so will cost about 8 gph per engine. 140 tasks 300 drawings 222 pages tasks are fully explained with clear drawings and minimal text Your 6 71 is Idling to much or not working hard enough and the Combination of unburned Fuel and Carbon is creasoting your exhaust system. Hours 0. The 6v will get better fuel economy because of the increased boost. 99 DETROIT DIESEL GM J amp T 671TIB model 671 WITH WATER COOLED MANIFOLDS setup Heat Exchanger cooled for marine applications INDUSTRIAL MARINE RATED 485 HP engine is in good conditions since rebuild 1250 hrs. Gm Detroit Diesel 6 71 Engine Motor Running And Shut Down 2 the lower S L ratio gives better fuel economy by a large factor. We are authorized Detroit and Cummins quot Dealers quot . By optimising the torque curve the Detroit Diesel MBE 900 280 7. Everything noted in the other replies is valid and applicable to any marine diesel. 00 each Serious Inquires Only. 420. Recognizing the engines of Detroit diesel 53 series. Walker Engineering 9255 San Fernando Rd. engine has been serviced oil and filters changed out also fuel filters new. Both filters are the old style cannisters plus elements not spin ons . New 12v Solenoid Fits 1984 1985 Gmc Van P2500 P3500 Detroit Diesel 82l 3604671rx 1115591 Snls D37 Snlsd37 . 3 knt range at 1500 rpm. Fuel consumption g kWh 218 207 220 217 207 213 on propeller curve2 l h 264. I am virtually certain it was full when it was reinstalled after the last fuel filter change. Fuel economy detroit diesel 8v92. WOT is a honest 2500 RPM which is what they are rated for under load. Some might argue that if you have to ask you can t afford it and while that might be true with the cost of marine fuel and the low fuel economy of boating that can add up quickly. 8 560HP engine our truck chip tuning file is tailored for more horsepower and greater torque along with reduced fuel consumption. lionel llc. 5 inch stroke. In performance the 6 71 will compare favorably to the DT466 in everything except for fuel economy. Compare the specs of this Cummins engine with that of a Detroit of comparable power rating. 41 gallons horsepower hour depending on horsepower demanded100 HP 40 GPH. Detroit Diesel had been building only 2 Stroke Cycle engines such as the venerable 6 71 since General Motors created the division in 1938 However by the late 1970 s with the raising cost of diesel fuel and the inefficiencies inherent in their 2 Stroke Cycle engines which caused them to consume more diesel fuel than their competitors modern 4 Stroke Cycle engines DDC realized that for gt Low fuel consumption gt Low exhaust and noise emissions Service gt Round the clock gt Worldwide The MTU Series 60 engines embody the qual ities of reliability and durabilitylike virtual ly no others. With its reliability durability and excellent fuel economy this recognition really validates what we know has been a superior product in the marketplace since its launch in 1987. We use the motor home to get from Chicago to Colorado to go Skiing. The Delo 400 is better suited for the 4 cycle diesel engines. 6. Find 37 listings related to Used Marine Detroit Diesel Engines in Houma on YP. Helpful Hints for Detroit Diesel Marine Engines. 950 South Main Street Pocatello ID 83204 Technical Support amp Parts frank1geffs aol. Shell 39 s Rotella 40T meets the specifications for the 2 Stroke Detroit Diesel also. 00 Detroit Diesel 671 Marine Motor 12. 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. Detroit Diesel Engines provide the best in class for fuel economy and low cost service and maintenance. Detroit Diesel Measure your diesel fuel or oil consumption with our fuel flow meter. The B4. We run test every Detroit Diesel motor to ensure it is in working condition and ready to ship. Descriptive Note Final rept. Twin Disc Marine Gear. Produced from the 1930s to the 1990s Detroit Diesel 39 s Series 71 engine is one of the most persistent diesel engine designs ever developed. There are good reasons for that success low fuel consumption rugged and 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. Discussion in 39 Engines 39 started by aircar I run 671 naturals in an 83 39 wood yacht. 2 12. By optimising the torque curve the Detroit Diesel Series 60 435 DDEC IV 12. Suits Detroit Diesel Engines 6 71TIB 485HP Cast 316 Stainless Steel Mixing Elbow Precision CNC machined investment cast 316 stainless steel Gasket not include The 6. Dont miss the industry 39 s only complete timing pin kit for the 60 series. I 39 ve owned a bunch of 71 series. The barge is fully equipped for loading and discharging cargo. The History of Detroit Diesel. BDC Specifications subject to change without notice Detmit Diesel Allison Division of General Motors Corporation 13400 West Outer Drive Detroit Michigan 48228 In Canada Diesel Olvjsjon. Also Allison or Twin Disc marine gears. Formula To Estimate Maximum Engine Fuel Consumption Gallon Per Hour GPH specific fuel consumption x HP Fuel Specific Weight Constants Gas Diesel SFC . 7 38. detroit diesel 6 71 n. Quick Navigation Detroit Diesel Top. Otherwise it just pulls air from the bottom. The FloNET Diesel Series is designed to interface with a NMEA 2000 network. Detroit Diesel 6 71 Gray Marine Engine 240bhp Twin Disc Mg . Prior Power Solutions supplies genuine Detroit spares and parts. 3 cargo tanks all center . Whether you re on the road or at a job site it s important to operate vehicles that perform efficiently and reliably. I am looking for economical of fuel consumption. 2 280HP engine our truck chip tuning file is tailored for more horsepower and greater torque along with reduced fuel consumption. 4 351. ft 2 508 Nm . Granted the DD 6v92 DDEC at 625 hp is pumped up quite a lot and there is no question that these are 1000 to 1500 hour engines but you can do a lot to extend engine life. A 16 cylinder V engine producing 2 600 hp at 2 300 rpm the M96 features a new fuel injection system in addition to three sequential turbochargers for better acceleration and fuel economy. Fuel Consumption Charts . These engines NEED to be loaded at 60 or more to be efficent less than 60 does not reduce the fuel burn by much. I change the oil every 100 hours and fuel filters. 0. 5 knots but if your at the Max hull speed for the water line length of your example boat at 8. Detroit Diesel 671 Service Manual Pdf . Broiltech developed and produced fuel consumption meter for diesel and Petrol Engine With Both Single Flow Sensor And Two Flow Sensor Base System this system s use for measure fuel consumption at Diesel Generator Automotive Diesel And Gasoline Vehicle Shipping And Marine Ship And Boat Mobile Tower Dg Set Earth moving Equipment at mines and construction site for more detail please Detroit 39 s electronically controlled Series 60 diesel engine was introduced during the first quarter of 1987. They run at 185 degrees. MTU Detroit Diesel will feature three of its most popular marine engines the Series 4000 Series 2000 and Series 60 at the International WorkBoat Show booth 621 in New Orleans December 1 3 2010. ECM King also diagnoses rebuilds and remanufactures other Detroit Diesel Series 60 Engines such as Detroit Diesel Series 60 MARINE Detroit Diesel Series Detroit Diesel 671 Service Manual the detroit diesel the iconic american high speed two. 00 test 0. Apex Tool Company is proud to offer quality USA made tools for use on the Detroit Diesel 50 series 60 series DD13 DD15 as well as the older 53 71 92 amp 8. emd 567 wikipedia. Fuel consumption Liters per hour 124. Diesel Parts Direct offers new and remanufactured parts for Detroit Diesel engines. More recent studies emphasized the use of emulsions to improve fuel economy. 1 There are new rings on the pistons. 1 155. This is one video of the whole recent project of getting this detroit diesel powered boat back up and running. 8v2000m93. Category 3 Engines. Detroit Diesel began making Series 60 marine engines in 1999 with wider availability starting in 2000. Brand This is a breakdown of a two stroke diesel like the Detroit style l So the Detroit style two stroke relies on an effect known as scavenging. Gray also added a governor air intake with silencer and a flywheel assembly to power such items as a bilge pump in the boat. Is this technology old. jpg Above 8v2000 DDECIV 1998 900hp 4 307 lb. sea ray powerboats for sale by Detroit Diesel 4 71 Engine . All of our engines can be used to perform severe short or long hauling trips. 1kw 39. com www. Older than me by a year. Detroit Diesel developed its engines in the industrial marine and railroad markets. . Sale Price 452. Reduced fuel consumption 5 to 20 with a J Ball Electronics diesel ECM tune and improve horsepower and torque. Hi Detroit 2 cycle engines do consume oil. Series 60 Improper Grade of Fuel Oil Posted on May 8 2012 January 30 2014 by sam To determine if an improper grade of fuel oil is causing excessive white smoke perform the following Acquire a fuel oil sample from the CC amp T 1958 GMC TDH 3714 Old Look Transit Bus Ex Roanoke City Lines no. The same basic design was used for more than sixty years. Generator 24 kw enclosed housing. 781. 102 Detroit Diesel 4 71 Fuel Diesel. You need to get your 6 71 up to 1800 RPM 39 s in gear underway for at least 10 Minutes or more to burn out all the deposits . out of there engines. zip gt DOWNLOAD. Fits 371 471 671 Inline engines. Double hull tank Barge For Sale. 82 fuel specific gravity 47. New engines with electric injection turbos and intercoolers MAY get 22 to 24 hp from the same gallon of diesel. In the case of the Detroit Diesel DD15 14. It is a leading manufacturer of diesel and alternative fuel engines for commercial hauling purposes in trucks coaches buses and commercial marine craft. Its engines have long lifecycles and are utilized for commercial transport military applications and marine power generation. 23507180 Detroit Diesel Intercooler LE23507180. detroitdiesel. Reliability. For several years GM had cornered the diesel engine market. I have some questions for you. 23507181 Detroit Diesel Intercooler LE23507181. 0 to 8. My engine is 350hp and my fuel consumption is 350hp x 0. I 39 ve been running 71 series engines since my very early teens. The speedometer doesn 39 t work so there 39 s no way to tell how many miles or hours are on it. Detroit Diesel direct replacement heat exchanger. 70. Created Date 7 24 2012 12 08 20 PM Detroit diesel 8v71 8cylinders 71cubic inches per cylinder 71 series engine V8 the Detroit diesel 8v71 is a 2 stroke diesel engine along with the 6v71 6v53 8v53 12v53 12v71 12v92 8v92 6v92 THE EMISSIONS AND FUEL ECONOMY OF A DETROIT DIESEL 6 71 ENGINE BURNING A 10 PERCENT WATER IN FUEL EMULSION. The truck is a 1976. A natural 671 pumps about 36 gallons of fuel per hour but only burns 2 6 gallons an hour. 5 119. In The Land Of The Dinosaurs The Behemoth Two Stroke . Cool internationally. 39 to 0. 5 1. Similar to J 4791 5869 1 Fuel System Coupler Fitting Detroit Diesel S60 MBE900 MBE4000 Connects to compu check quick connect fitting. Shop read reviews or ask questions about WALKER AIRSEP Detroit Diesel AIRSEP Kit 671 Single Turbo at the official West Marine online store. The Detroit Diesel The Iconic American High Speed Two . Connect to DDDL 7. remanufactured 2 cycle detroit diesel engines series pf 16v149ti P OWER F ORCE Remanufactured 2 Cycle Detroit Diesels Engines comply with applicable codes and standards PowerForce Corporate Office 9200 Liberty Drive Liberty MO 64068 Ph 816. Every step of our design testing and manufacturing process builds quality into every engine that bears the Detroit name. We are the authorized sales service and parts distributors for Allison Transmissions Detroit Diesel MTU and Mercedes Benz engines Volvo Penta Marine engines John Deere Marine engines and MTU Onsite Caterpillar 3208 TA Marine 16 850. Detroit Diesel engines offer peak performance and fuel economy. Most folks in this market don 39 t consider getting 15 000 hrs. 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. Two cycle and four cycle engines each have their pros and cons. 50 lb. is the better of Chevron 39 s Delo oils for the Detroit Diesel 2 Stroke family of engines. Went 60 years before overhaul. API CG 4 and CF 4 oils may be used when CH 4 oils are not available however their use may require a reduction in oil drain interval depending upon the application and the fuel marine mtu online. I run these in a 45 ocean sport fish. Overload it under maintain it and it will break. 40 lb. I remember a couple of fireboats at Long Beach in the 90 s that had 12V 92 s for propulsion and main pumps so ran three total. Detroit Diesel engines can go up to 50 000 miles between oil drain oil filter and fuel filter changes. From the Select Menu scroll to select ENGINE and press the ENTER key. The company manufactures heavy duty engines and chassis components for the on highway and vocational commercial truck markets. 485 plus bhp with spec turbo Garrett TW 7302 with 1. Welcome to Florida Detroit Diesel Allison FDDA . sterling rail all classified listings. I have owned the bus for about a year and m Detroit diesel 471 Turbo Power unit. 300 hp Gasoline Engine Example please help detroit 671 looks like you know a lot about detroit diesel marine engine could you please give me the exact model and le power rating of those engines 671 1062 4310 serial number 6A287260 port and 6A287354 strb one thaousand thanks i look everywhere and my bad tecnical english dont help me kind regards pascal coldefy All through the years I 39 ve worked with very few diesel mechanics including myself who didn 39 t feel a Cummins of the same era was WAY easier to work on from fuel systems to complete overhauls. The secondary filter at the engine was only half full maybe 60 . 1945 Landing Craft Engine Start Up Detroit 6 71 . 2 cycles are not known for being fuel efficient. detroit diesel 671 marine engine. Inboard Intake amp Fuel Systems New Listing Good GM Detroit 6L 71N Diesel Engine 671 Model 1067 8517 DETROIT DIESEL 671 MARINE AIR SILENCER 671 BLOWER SILENCER Almost by definition truckers have always been practically obsessed with engine reliability fuel mileage. V. And I have heard that these e read more Lower heat cycles less major components these would translate to longer life and your fuel consumption would be better. Seven decades later you 39 ve come to expect quality innovation performance reliability and low emissions from Detroit Diesel engines. Fuel is one of the largest expenses for diesel burning equipment and rising fuel prices cut into your bottom line. Detroit Diesel 3 71 Detroit Diesel 4 53 Detroit Diesel 4 71 Detroit Diesel 4 53 Detroit Diesel 6 53 Detroit Diesel 6V53 6V53T Detroit Diesel 6 71 6V71T Detroit Diesel 6V92 Detroit Diesel 8V71 8V71T Detroit Diesel 8V92 8V92T Detroit Diesel 12V71 12V71T Detroit Diesel 12V92 12V92T Detroit Diesel 12V149 T TI TIB Detroit Diesel 16V71 16V71T Detroit Diesel began producing heavy duty diesel engines in 1938. Detroit gensets in stock ready to ship Worldwide Call at 1 713 434 2300. Cargo Manifold Midship section. Discussion in 39 General Industry Questions 39 started by Tom Spivak Feb 19 2008. Its service record is unparalleled. Detroit engines perform at their peak for miles and miles with best in class fuel economy and low cost maintenance and service. Accession Number ADA058550 Title The Emissions and Fuel Economy of a Detroit Diesel 6 71 Engine Burning a 10 Percent Water in Fuel Emulsion. When it comes to instrumentation the Caterpillar 3508 Marine engine is top of the range. Cargo hose derrick 36 ft Detroit Diesel Marine Raw Water Pumps These raw water pumps are exact replacements to those offered by Detroit Diesel. The expert technicians at Connecticut Diesel and Marine busy working on a 671 Detroit Diesel. When you compair the cost of parts vs. Built 1971 2 12V71 Detroit Diesels 2 30KW generators powered by 471 Detroit diesels. at 228 392 1311 or 12262 Parker Creek Road Biloxi MS 39532. . What props do you have 3 or 4 blade cupped or non cupped and diam pitch I 39 m curious to know because mine are based on a 42 and are 25 x 26 non pitched 3 blade. Fuel Consumption Of Turbocharged Engines . 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 density than diesels using the more common four stroke combustion cycle one power stroke Both GM and a few of the larger GM engine marinizers knew that long service life durability and fuel consumption were secondary to the goal of adding power. The tube was used on marine applications and was run to the silencer. The HDT DDEC3 4 Module was designed to upgrade power on all Detroit Series 60 DDEC3 amp 4 engines. 9. Detroit Diesel fuel in crankcase oil. 0 knots you can have a huge increase in fuel burn just to go that 1 2 knot faster The 6 71 makes a unique sound because it 39 s a two stroke diesel. 2 L . Today the 8V 53 seems to be somewhat rare although the same parts from other 53 series motors will fit this one too. The test fuel for marine diesel engine testing has a sulfur specification range of 0. It was used in landing craft during World War II and is used today in private boats and training facilities. So you can make you 450 hp well before 1800 rpm with the 8v92 but a 6v will have to run up to 2300 rpm to make 450 hp or run a bunch more turbo boost. 2 105 7. Work done 1. Detroit Diesel 60 Series Fuel Pump Replacement Diy Duke . Detroit Diesel Engines 900 BHP 671 kW 2100 RPM Peak Torque 1950 lb ft 2644 N m 1200 RPM FUEL CONSUMPTION CURVE shows fuel 15 17 kts is possibly the worse speed in terms of fuel efficiency for a 41 footer. detroit diesel 671 marine fuel consumption