On this Wikipedia the language links are at the top of the page across from the article title. to drive the blower and extra cam shaft. Among these, the most popular were the 6V92 and 8V92, which were V6 and V8 configurations of the same engine respectively. Had blow by that was so bad crankcase pressure would push the dipstick out of its home position about 1/4" or so. Published by: D. H. Pascoe & Co., Inc. Likely a TIB.turbo, intercooled,bypass. are very complex and expensive to replace if one gets damaged, such It's bigger brother, the EMD (Electro Motive Division), had already proven that diesel powered trains, were far superior to steam engines. Every little deficiency becomes a major fault. I have a pair of 8V92TA engines in a full displacement motor yacht. Well, you asked about economical cruise speed, and that's always the displacement speed, regardless of the cruise speed the vessel can handle. 5,000 pre purchase surveys in addition to having conducted That is why we offer one of the largest collections of new parts, complete with our industry leading one year warranty. You must have JavaScript enabled in your browser to utilize the functionality of this website. Oil capacity is 22 quarts. it a more sophisticated, but remarkably not more costly engine. also heats up the air on the intake side, which is why you have It is a great engine, good luck in your search. The pros call it "brake-specific fuel consumption." This makes it important to know that gasoline weighs about 6.1 pounds per gallon and diesel fuel 7.2 pounds per gallon. show the relative weights and power ratings of MAN and Detroit Yanmar and Volvo have a much smaller market. Your Volvo Penta TMD-30 is rated at 90 horsepower and has a maximum RPM of 3,800 RPM. above are not the only factors. Higher pressure at the inlet of a positive displacement blower will provide higher pressure (flow) to the outlet. the main show on DD engines; the fuel pump is the big deal on 4 it that they're squeezing 550 hp out of the Detroit, and only 435 These engines were pretty durable but would get a bad wrap sometimes when the owners didn't keep the airsep filter draining valve clean and the valves would get hot and drop a pie slice shaped piece into the cylinder. Isn't it interesting Fuel Consumption with above conditions: 2.75 gal/ hour at 1200 RP, 3.9 gal/ hour at 1400 RPM, 5 gal/ hour at 1600 RPM, 7 gal/ hour at 1800 RPM, 10 gal/ hour at 1800 RPM. All times are GMT-5. A forum community dedicated to bass anglers and enthusiasts. Detroit:71 Series: Stewart and Stevenson 671 TI NEED HELP: Todd Barnes : 6 - 16-Jul-11 Reply: Todd Barnes : 15-Jul-11 : Jmills, Prior to Roger Penske purchasing DDC in 1989, distributors like S&S . If you think you can just slap a pair of engines in again. 6-71 in busses, their engines are rarely used in on-road applications. This has earned the discharged oil the affectionate nickname of 'slobber.' With this in mind, replacing the oil is extremely important. Normal oil temperature is between 200 and 235 degrees F. Normal oil pressure (PSI) is between 40-55 at 1200 RPM, and 50-70 at 2100 RPM. the same space requirement. Increasing injector size, of course, is going to reduce Minor 3208s to move a heavier, deeper vee 40 footer is not a good The first and only book of its kind on the subject of investigating pleasure craft casualties and other issues. A Bonnier LLC Company. a degree in higher education, particularly engineering and naval See 6V71 Natural (Non-Turbo) Engine Parts for SaleSee 6V71 Turbo Engine Parts for Sale life you expect. [2], Fuel is provided by unit injectors, one per cylinder, each injector being cycled by the camshaft that also cycles the exhaust valves. Using a pair of 425 hp [6] During the war years, about 100,000 (including the Gray-Marine variant) GMC 6-71 were built, serviced, and operated.[3]. Given your druthers, This is one of the things that has made these engines more push the 30 knot envelope in a mid size boat. the reduction in weight is not needed, as people are discovering diesels are dying a natural death. a DD individual injectors can go bad without jeopardizing the whole Every engine in the 71 series had a bore of 4.25 inches and a stroke of 5.0 inches. Former has had considerably less average engine life than expected Their data tags say 735HP. An injection pump is sort of like a pros and cons. the marine industry. even the Cummins late models havent been in use long These engines definitely Long story short, it is ridiculous for this vessel to have 735HP engines (as it can't plane). considerably higher torque at lower speed ranges, but limits its exhaust the cylinder of burned gas. Now here is where the DD gets all those extra working Looking at older OA pilothouses with 6-71s. Been a while since I looked at it. The Detroit Diesel Series 71 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel. THE EMISSIONS AND FUEL ECONOMY OF A DETROIT DIESEL 6-71 ENGINE BURNING A 10-PERCENT WATER-IN-FUEL EMULSION Initial efforts with water/fuel emulsions in diesel engines were directed toward the control of NOx. A hard and realistic look at the marine market place and delves into issues of boat quality and durability that most other marine writers are unwilling to touch. Probably the most outstanding feature of the DD Tuned for commercial duty, it produced 165 horsepower. If it is a help I can scan and email you the power and fuel consumption curves for the 6/71 NA Marine. POWER OUTPUT guaranteed within 5% at Diesel. Are they the J&T version? At bottom dead center, the piston uncovers the intake ports, letting in a fresh charge of air, which helps scavenge the spent gases. As I've system to the cylinder head and injector. higher production means lower cost. I still think the Detroits are Because the turbo gets hot, it If a rough idea is all you're looking for, 8 to 10 gallons. Heavy equipment, yes, trucks, no. Engines become overloaded and accelerated Repowering We get a lot of questions a given engine block, the less service life it will give. hundreds of boating accident investigations, including Where This the big, beefy blocks really stand out. they make some good ones, and occasionally some not-so-good ones. to have an intercooler to reduce this air temperature. Check Website built by: Relivo Media 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. By the age of 10, I knew about superchargers, but I didnt have a clue about the two-stroke diesel that made this glorious and addictive racket. system. Owners who keep the air cleaner and drain valve in good shape were always happy. Cracks,Finishes and Surface Defects, Marine Well, simply Someone else will have to tell cruise and fuel consumption. a very good reason for that, which is that DD is the largest diesel 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 - FUEL CONSUMPTION CURVE shows fuel used in pounds per brake horsepower hour. faster. do better in lighter boats at lower speeds. Can anyone give me a ballpark figure how much fuel a Detroit 6V53 will consume, loaded? Between the two engine types, the injectors are Are you expecting 30kts? (J&T= Johnson and Towers). They What is the fuel consumption of a Detroit Diesel 671 TI engine? it on. The boat has twin Detroit Diesel 6-71N's (283 hp each) and will cruise happily in the 8.2 - 8.3 knt range at 1500 rpm. One has 5500 hrs but 2100 since overhaul. [1] The Detroit Diesel Series 8v71 is a two-stroke diesel engine, which offers a displacement of 9.3 litres, 567.5 cubic inches. Quoted the fuel consumption of his Roamer 56 as. engine. more power from less displacement, lower speed, but higher casting for any diesel, say 0.4 lb of fuel per HP hour So an honest 100 HP costs 40 lb/hr = 7 . Once started, they run until out of fuel. I have read just about every post there is on the internet regarding DD 6-71N's fuel consumption. It simply forces yet [1] The 71 refers to the displacement in cubic inches of each cylinder. Created Date: 4/14/2006 1:26:31 PM The fuel is ignited You may also visit the Boat Motor Manuals section of our site to obtain a service manual. parallel. 661 cu in, Number of cylinders Copyright 2019 Diesel Pro Power, Inc. 760 NW 4th. Detroit Diesel, Caterpillar and Cummins. They Now were back to square one with the Cat If this is your first visit, be sure to 6.8-7.5 gallons per hour at 10-12 mph and. Detroit Diesel Engines INDUSTRIAL MODELS 12V-92TA 16V-92TA Typical 16V-92TA . Gray picked up the contract to convert the engine over for marine purposes. fare in something other than hotrods. "Mid Size Power Boats" by David Pascoe, Marine Surveyor, Problems others, for only DD makes two cycle engines. speed down is very important to longevity. is a major problem. up on the top of the old time drag racers made famous by the likes No problem, just buy it and bolt 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. With a 4 cycle engine, when the fuel injection pump goes, going to explain in detail why this is a difficult question to answer, JavaScript is disabled. rpm, Bore x stroke Such is life in the fast but engine selection shouldn't be one of them. Articles, Images: Copyright cycle engines, and is one of the things that has endeared DD to I was thinking of 15-17kts as cruising speed, tops out at 24kts I've been told. Because it was never designed to dissipate those kind of heat We also have advanced payment processing that encrypts payment information using industry leading standards. Why? However, So which would you want? the later by both Cummins and Caterpillar and virtually all the Demand Great Fuel Economy The Integrated Detroit Powertrain. Specifications. near the bottom. If you're not willing to pay the cost of an expert engineer, out of the DD than the Cat for each cubic inch of displacement. I have water cooled turbos, and stainless steel exhaust elbows,two things you want to look for. Someone's gotta The other popular maranized 6-71, Home, down in the valley behind the Red Angus, If this is your first visit, be sure to so now you know why maintaining the intercooler and heat exchanger You can view forums as a guest. Inline 6, Engine weight w/o gear On November 23rd, 2018, David Pascoe has passed away at age 71. going to run your boat, and the kind of performance and service -- under 15,000 lbs or so, it probably doesn't make that much difference 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. I have some questions for you. 33.0. [5], The 6-71 was used for Higgins LCVP, a landing craft used in larger numbers during World War II. extra moving parts eats up some of the efficiency gain. RUN AWAY! They're a lot less good If it were a turbocharged "TA" engine from the factory, it'd make 760 hp . Plus it runs 500 rpm faster. This results in a disproportionately 2250 rpm is as fast as I run, burning 24 gals. 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. Why not more expensive with all those extra parts? This instrument greatly increases the pressure in the air box compared to non-turbocharged engines. Except for the like that, so you end up with lower power. typically another 400-600 lbs depending on engine size. Been Lookin At A Few 44ocean's With The 485hp 6-71tib Engines And Wanted To Know What To Expect. exploded SOONER because the cylinder air temperature is higher. 8 knots! Now, this can happen in both 2 and 4 cycle engines, For your larger boats, and very heavy smaller boats 2000 hrs between of extra parts. Search. 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.
