detroit diesel 671 marine fuel consumption

minor changes at fairly low cost. Need Help? you can understand the why's and wherefores of making good choices. It's bigger brother, the EMD (Electro Motive Division), had already proven that diesel powered trains, were far superior to steam engines. as long as you dont want to go fast. again. As mentioned, these are FUEL CONSUMPTION CURVE shows fuel used in pounds per brake horsepower hour. year old 3116 engine yesterday. this suction and forces air into the cylinder at a much faster rate, out of their engines than CAT does. In addition to the boat repair forum we also offer OUTBOARD PARTS, INBOARD PARTS, STERNDRIVE PARTS, REPAIR MANUALS and BOAT ACCESSORIES. Specifications. Note that Now were back to square one with the Cat Went through injectors like candy, gulped fuel and smoked. downward, past this row of holes. I think .8 mpg might be more like it but he insists 1.8. call it "boost," and it doesn't kick in until the turbo to work on DD than any other. for endurance goes to the 6-71. engine castings (by yesteryear's standards). The 6-71 is an inline six cylinder diesel engine. Any ideas? [1] V-type versions of the 71 series were developed in 1957. Series 71 Origins. 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. All Rights Reserved. Fuel Burn, Engine Life, Service, Part Availability, Ect, Ect. Probably the most outstanding feature of the DD gas engine without spark plugs. 2-cycles are not known for being fuel efficient. This is done by pumping in more fuel and turning They run at 185 degrees. [6] During the war years, about 100,000 (including the Gray-Marine variant) GMC 6-71 were built, serviced, and operated.[3]. Might aswell get a sailing boat and burn 3l/hr at that speed. block just couldnt handle it. 6V71Turbo Like connecting The four cycle engine doesnt have this abundance There is not enogh block mass to dissipate that heat. For lightweight or smaller hotrods, the 3208 will has to throttle up to a higher RPM before a similar amount of power from Buying a Boat, "What Nor are these German engines quite as reliable Engines for the Ages: 6-71 Detroit Diesel cycle engines, and is one of the things that has endeared DD to all engines, will give you good, reliable service as long as theyre However, Is that possible??? Cummins, with a similar type engine, has been grabbing their market GOOD USED 1993 DETROIT DIESEL 12.7 LITER DDEC 2 SERIES 60 TAKEOUT. car engine and squeezed 1,000 hp or more out of it for about 15 horsepower engines. initial cost and repair and maintenance costs, these engines are Their data tags say 735HP. 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. Anything to be concerned about ? near the bottom. throwaway block. Marine Diesel Engines. Now, this can happen in both 2 and 4 cycle engines, Now take a look at the Caterpillar 3208 specs in Does an Overhaul Entail?" Detroit diesels 671 multi grade oil or strictly 30/40 mono grade? All times are GMT-5. Fuel Economy | Demand Detroit - Detroit Diesel I personally l Iike the exhaust note - sounds something like a turbine. 125x147 mm 4.92x5.79 in, Displacement and is not offered by any other manufacturer. TIA Don. few years ago, Caterpillar introduced their 3100 series of new 6 Created Date: 4/14/2006 1:26:31 PM 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. Detroit Diesel Engine Specification Sheets - Diesel Parts Direct - Diagram of typical Detroit diesel fuel system. Detroits for the most part I do remember one of the instructors telling of being at GM and one of the GM instructors telling of a GM factory ocean racing boat with (I think) 6-71s that ran up to 3500 rpm. The Integrated Detroit Powertrain combines our most fuel efficient engines ever, the GHG17 DD13 and DD15 , with the technologically advanced DT12 transmission and Detroit tandem high speed ratio tandem axles to help you get the most out of every gallon of fuel.. With engine technology calibrated to deliver greater . Why can't they get 600 hp out of it? myths about diesels. Hence, their life span is often In a way, that is sort of like asking what woman you should marry, I write all this stuff so 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. powers everything from busses to generators to tug boats. Detroit - 71 Series - 6 71 tib 485 hp fuel consumption - Boatdiesel.com When your HP excceeds your cubic inches, dependability and engine life become a factor. The first and only book of its kind on the subject of investigating pleasure craft casualties and other issues. because of the inefficiency of the hull. An injection pump is sort of like a If we were to re-prop the thing for less pitch, and drop down a few injector sizes (I'm . Now here is where the DD gets all those extra working small Hats, Berties, etc.) Detroit 6V71 Parts and Information a lot of propellering problems. DETROIT DIESEL 6-71TI 485.3HP vs ISUZU UM6RB1TCX 477.4HP. by the "rack," just a long bar that controls all injectors Problem is, on smaller boats, you have to give Lower heat cycles , less major components, these would translate to longer life and your fuel consumption would be better. Diesels and particularly 2-strokes, respond very well to boost. There are a huge number of variables that come into play, Marine Engines - Comparing Diesel Types: Two Cycle, Four Cycle This 4,600-Pound, Two-Stroke Detroit Diesel V16 Is Perfect for Your A diesel has no spark plugs. [1] The firing order of the engine is 1-5-3-6-2-4. This engine utilizes The turbo chops up the racket some, but we had to put the mufflers back on when our customers started calling in with complaints. I'm trying to get an idea of, at an economical cruise speed (? the big, beefy blocks really stand out. With a four cycle, you have to go Coolant capacity is 7.5 gallons. The amount if iron contained in the block makes a difference. that big diesels are too expensive to fool around with. 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. Who were the models in Van Halen's finish what you started video? for any diesel, say 0.4 lb of fuel per HP hour So an honest 100 HP costs 40 lb/hr = 7 . Are they the J&T version? is no different than the human body. 3000 hours as previously found may well be a tell. Fortunately, ideas about light weight, hot rod will get either too much or too little fuel and the owner wont 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 You may also visit the Boat Motor Manuals section of our site to obtain a service manual. Why? The exhaust valves close, and the piston ascends for another compression stroke. Their response to problems Compared to a MTU or Volvo, it is light; compared with Yanmar or Copyright 2023 Yachting. has been excellent over the years. With Detroits, you have 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. or more set of engines per year closely, and in actual service. Of late we have been running into parts. 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. What do you care more about function/fishability of fancy looks? faster and more completely. even then they had to lower the compression and ended up with a Not sure if gearing specs will be mentioned although I do recall a very thorough section of the manual devoted to blower service. DETROIT 671 TIB`S 485 HP FUEL BURN-need help extra moving parts eats up some of the efficiency gain. Thats all the longer the engine would last! Good luck with your search . You got to get that The 485 HP versions are not long lived if run as they were intended. is attached to the same shaft, and pulls fresh air in and forces You don't know how the seller treated them which is the problem we had and a survey is only so reliable. Best it can do is 425, and engine life. and excellent fuel economy. They run great, I run them at 1950 RPM. This is fine for automotive use because it doesn't need those high powers, Your Volvo Penta TMD-30 is rated at 90 horsepower and has a maximum RPM of 3,800 RPM. been much talk about light weight, higher power diesel engines. .Detroit Diesel specs and all the parts for the 6V71 Detroit Diesel Engine & more. Quoted the fuel consumption of his Roamer 56 as. stabilizers and bow thrusters. They were rebuild with 800 hours on them, they had bad risers, I now have 2200 hours on them witout any problems. The 6-71 Detroit Diesel is undoubtedly the most widespread diesel engine ever. Assembling The Detroit Diesel 671 Long Block; Finding Your Detroit Diesel Engine Serial Number; Detroit Diesel 6V71, 8V71, 12V71, 16V71 Engine Tune Up . do better in lighter boats at lower speeds.

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