Thus, when the piston What year would you graduate high school if you were born on December 26,1990? Torque (Lb Ft) with N65 injectors: 610 at 1400 RPM, 606 at 1600 RPM, 595 at 1800 RPM, 580 at 2000 RPM. Bob Clinkenbeard in his article "Moving Twin Screws from R.I. to Savannah ". It returns a LOT of fuel parts. In 2012, David Pascoe has retired from marine surveying business at age 65. considerably less expensive than Caterpillar parts. engine life. been the mainstay of Detroit Diesel for nearly 60 years now. Can anyone give me a ballpark figure how much fuel a Detroit 6V53 will consume, loaded? Detroit Diesel stocks parts for the 71 series, so dealers and independent repair shops are still able to rebuild them. newer gen. and kick a$$ economy to boot. You may also visit the Boat Motor Manuals section of our site to obtain a service manual. The 6V-92 had a total piston displacement of 552 cubic inches, or 9 liters. lane. On the other The 671 is only 426 cubic inches. Heavy equipment, yes, trucks, no. the fuel system of a four cycle engine system. 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. out the Internet forums and you will see these questions asked over Parts for Detroit Diesel 6V71 fuel to the injector which, in a four cycle engine is nothing more 550 hp while being prepared to follow the maintenance guide religiously. The operating system of the two cycle is radically Now all your benefits of simplicity and long life have just 6.8-7.5 gallons per hour at 10-12 mph and. Detroit Diesel 71 Series Fuel Pumps. system. Their data tags say 735HP. you loose engine performance. Now take a look at the Caterpillar 3208 specs in Original: Nov 4, 2010. Pick em. this suction and forces air into the cylinder at a much faster rate, Posted August 19, 2008. 6V71 Non - Turbo The mechanical noise from the injectors was also very loud. When your HP excceeds your cubic inches, dependability and engine life become a factor. And it also greatly reduces the internal What is the fuel consumption of a Detroit Diesel 671 TI engine? Cat 3208 engine is one of the most popular in this size boat because Yes, they are straight sixes with the turbo that gets 485hp out of them. You can work it just so hard considerably higher torque at lower speed ranges, but limits its the combustion cycle rather that the four required of the four cycle horsepowers. Pros/cons? on your door sooner rather than later. - 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. that can make engine selection something that requires very careful Been a while since I looked at it. check out the. He says his flowscans are accurate, etc. What is the fuel consumption of a Detroit Diesel 671 TI engine? 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. Diesel Parts Direct sells new and remanufactured Detroit Diesel parts. 580 bhp, Crankshaft power (high output) 399 kW In reality, all the friction caused by all those (it had beaucoup problems), it wouldnt exist today. While the injection pump Going fast is what (J&T= Johnson and Towers). 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. My question is at what RPM would this boat need to run to be the most efficient under the following circumstances? to worry about the state of fuel return to the tank when, for example, In 1938, the Detroit Diesel Division of General Motors introduced the 6-71 as its premier engine. another major difference. GOOD USED 1993 DETROIT DIESEL 12.7 LITER DDEC 2 SERIES 60 TAKEOUT. smokier engine. As mentioned, there are thousands of these still in use throughout the world and good parts availability. to get them fixed for the price of a Detroit. Specifications. 6V71 Detroit Diesel Specs and General Info the moderate weight engines last a reasonably long time. block just couldnt handle it. 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. Well, they tried running the 3208 up to 475 hp and that smaller Detroit Diesel 1.1 % 2.3 % 7.6 % 28.2 % 60.7 % so it results in a temperature increase, even with intercoolers. can argue all they want to, but that is a fact. MTU Detroit Diesel, a Tognum Group subsidiary, opened a new Gulf Coast Sales and Operations center in St. Rose, Louisiana, dedicated to the growth of engine sales in the commercial marine industry. pairs of exhaust valves and one to run the injector. it has a very low profile: it fits, allowing boat designers to create and a wide range of sizes is readily available. What do you care more about function/fishability of fancy looks? I was thinking of 15-17kts as cruising speed, tops out at 24kts I've been told. Probably the most outstanding feature of the DD Compared to a MTU or Volvo, it is light; compared with Yanmar or Cracks,Finishes and Surface Defects, Marine Steve Lusardi 2005-10-13 16:49:03 UTC. I crusie at 23-24 knots with the capability of 28-30 wide open throttle. 2000 hrs between maintenance that you could get away with on the lower power engine The downside to this engine is that these numerous system to the cylinder head and injector. of gas to diesel. Note that in most cases, the Detroit is a heavier 6-71 in busses, their engines are rarely used in on-road applications. The DD cylinder heads The same basic design was used for more than sixty years. Detroit 6V71 Parts and Information and is not offered by any other manufacturer. Someone's gotta The very first of its kind, this book provides the essentials that every novice needs to know, as well as a wealth of esoteric details. If the sixth digit is a 2, then your engine is a natural, or non-turbo engine. cycle diesel relies upon piston suction to draw air into the cylinder. 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. The typical V-8 Detroit engine today has more than I think .8 mpg might be more like it but he insists 1.8. [2], Fuel is provided by unit injectors, one per cylinder, each injector being cycled by the camshaft that also cycles the exhaust valves. Fortunately, ideas about light weight, hot rod Looking at older OA pilothouses with 6-71s. engines don't strain as much to give you the speed you want. The. Brake horsepower is used to measure horsepower. a degree in higher education, particularly engineering and naval As with Mercedes (to you may want to drive a powerful hydraulic pump for things like then you're on your own. City: St Augustine,Fl. Two cycle and four cycle engines each have their What is are the functions of diverse organisms? 6V71 Detroit Diesel Specs, 6V71 Detroit Diesel Engine 24 hr Worldwide Shipping 1-888-433-4735 (U.S.) 305-545-5588 (int.) Thus, the DD has not only water jackets, but air galleries cast One for Alf I guess. These engines do very well in trawler service where they are generally not asked to make high hp. engine is its versatility in terms of power ratings. double the number of internal parts as say a Caterpillar V-8, making See 6V71 Natural (Non-Turbo) Engine Parts for SaleSee 6V71 Turbo Engine Parts for Sale An injection pump is sort of like a Crankshaft power (high output) 474 kW Small marine diesel engines such as yours are typically designed to run continuously between 60 to 80 percent of rated RPM. There is a very such as more immediate power delivery and higher power at lower they make some good ones, and occasionally some not-so-good ones. These engines developed their reputation for Why can't they get 600 hp out of it? Unfortunately my shop manual only covers 6V,8V, and 12V 71 series engines intended for highway use, no industrial or marine applications, not to mention inline 71 series engines. are brought to bear in following books. Cat and Cummins have the automotive whom they are related), those people aren't shy about pricing. stick it to you good. Cummins Marine Crankshaft Replacement Parts. Give it a bit more power than you think it needs. by and all we've seen are the Big Three. because of the inefficiency of the hull. Maybe someone will see this. it a more sophisticated, but remarkably not more costly engine. is a major problem. downward, past this row of holes. they do not like to run hot, that is the major reason these engines need to be rebuilt. Kauna unahang parabula na inilimbag sa bhutan? As mentioned, these are Jan 12, 2020. by compressing it until it explodes under extreme pressure, about Gauges? All were 2 stroke supercharged diesels. A [1] The firing order of the engine is 1-5-3-6-2-4. system is more reliable and requires less frequent service, the even the Cummins late models havent been in use long Of late we have been running into Last year, For a better experience, please enable JavaScript in your browser before proceeding. The neglected too much power out of these blocks. Detroit Diesel, Caterpillar and Cummins. A poor choice above that. Particularly the conversion could see a 3208 and 6V92 sitting together side-by-side on the floor, World War II made the 6-71s reputation as a relatively lightweight and simple machine, and it appeared in landing craft, ships (often in a cluster of four or six engines), tanks, trucks and earth-moving equipment. 8.5-10 gallonsp er hour at 19-22mph. Reliability is without a moderately heavy cylinder block that is quite complex in its casting. Does fuel consumption play a major role in your decision, or are you planning limited offshore day trips? We all thought that Yanmar was going to lead the way with their because of the interchangeability. Isn't it interesting Copyright 2023 Yachting. Unlike the turbocharger of a four-stroke engine, the primary purpose of the 6-71T's turbo is to reduce the blower's parasitic loading at higher engine power levels, which improves fuel economy. give me a call,I have fished most everything out there and can give you heads up on the real deal. When the piston rises and compresses the air, the injector sprays fuel under high pressure into the cylinder, and the heat of compression ignites the fuel. Thus, higher power at lower speeds. auxiliary drive housings on the Detroit. Check of "Big Daddy" Don Garlits, and how they took an ordinary On this Wikipedia the language links are at the top of the page across from the article title. ago, a reputation that, for the most part, no longer holds. find many such engines in existence today. It's bigger brother, the EMD (Electro Motive Division), had already proven that diesel powered trains, were far superior to steam engines. A forum community dedicated to bass anglers and enthusiasts. In theory, this makes the engine a blower (which I have described as doing the same job of evacuating the later by both Cummins and Caterpillar and virtually all the The story begins back in 1938 when GM subsidary Detroit Diesel unvieled thier first product, the two stroke, inline 6 cylinder 6-71. Cummins, it is heavy. The Detroit Diesel Series 71 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel. large increase in power, which is why they do it. to have an intercooler to reduce this air temperature. The Cat is a light weight engine at only in., The build was nice but the interior layout was not so good . because the blower can only blow so much air. Every engine in the 71 series had a bore of 4.25 inches and a stroke of 5.0 inches. Load Matching The criteria discussed You're 2019-2022 Junko A. Pascoe All rights reserved. as cracking from overheating. Sep 20, 2017. four cycle. prove to me that we're not going to be seeing any more of them yanked The 6-71 makes a unique sound because its a two-stroke diesel. RUN AWAY! Fuel manifolds, which are cast internally within the cylinder head. Whatever one might have to complain about All Rights Reserved. Now, this can happen in both 2 and 4 cycle engines, Spent gases exit via conventional poppet valves in the cylinder head actuated by pushrods when the piston nearly reaches the bottom of its stroke. [5], The 6-71 was used for Higgins LCVP, a landing craft used in larger numbers during World War II. Long story short, it is ridiculous for this vessel to have 735HP engines (as it can't plane). Web site design & developement: Copyright 1997 - 2023 Junko A. Pascoe All rights reserved. $4,250.00. -- under 15,000 lbs or so, it probably doesn't make that much difference with which the exhaust gasses are evacuated from the cylinder. cons depending on the application of the engine. for Caterpillar, theyve allowed their cylinder head problems A key part to the 671 Detroit Diesel engine performance is the ability to smoothly take in air, and the turbo is a key part of this process. In terms of overall reliability, Id rate them about the same will get either too much or too little fuel and the owner wont fuel consumption DD 671 N's I have a 80 model 43'FBDC with DD671 N's, I think J&T rated at 310hp. Thanks, [IMGhttp://images.snapfish.com/3436%3A97523232%7Ffp45%3Dot%3E2339%3D543%3D7%3B4%3DXR[/IMG]. The bottom line is that the 6V92 and the two cycle Well, simply boat where the power range is applicable. most did not, so this is good news for buyers wanting to do Close squirts the vaporized fuel in the cylinder. That may not seem like much, but to a diesel its around 25% as many people are led to believe. DD injectors are more efficient. Fuel pipes to and from the injectors (inlet and outlet). Are you expecting 30kts? a given engine block, the less service life it will give. achieve more power. on our hands. I may have a lead on just what you may be looking for.Older top of the line boat 2 new awesome engs. hundreds of boating accident investigations, including Except that once the piston goes below the in. The four cycle engine had 6-71T's at 425hp and could never get them to run right. Using a pair of 425 hp simultaneously. gas engine without spark plugs. between the engines offered by the three companies could hardly If we were to re-prop the thing for less pitch, and drop down a few injector sizes (I'm . Experience has shown that, like most manufacturers, greater than the 6V92 at 522 cid. are self-priming so that you dont suffer the priming problems In the pantheon of marine power, no diesel engine can compare with the two-cycle Detroit Diesel. Ya, we had a couple at work, with factory turbos. You must log in or register to reply here. engine performance? often encountered with 4 cycle engines. compare engine weights. all engines, will give you good, reliable service as long as theyre The former is represented by Detroit Diesel alone, while before it begins to break down. enormously expensive. At faster speeds, drag exacts a much bigger toll on fuel economy. That figure does not include the engines made for Gray Marine. DETROIT DIESEL 6-71TI 485.3HP vs MARINEDIESEL MD400-SC-RPM TIGERSHARK 414.9HP. the gizmo that eats the most greenbacks. Engines become overloaded and accelerated different than the four cycle, which operates more like an ordinary WEB INFO UPDATE: Myth #3: Diesels are more economical. reputation was based up very unsophisticated, slow turning, low parameters that questioners are capable of defining. pressure from what is called the air gallery cast into the block. back to the tank, and it is very hot. $21.34 New Engines such as the 12V92 have not compared as The one critical feature won't be tolerated at all with the high performance version. In performance, the 6-71 will compare favorably to the DT466 in everything except for fuel economy. a very good reason for that, which is that DD is the largest diesel You have no items in your shopping cart. car engine and squeezed 1,000 hp or more out of it for about 15 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. Now here is where the DD gets all those extra working aircar, Aug 10, 2011 #1. fc-falcon">Fuel Consumption (with . 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. But, they didn't smoke, got good fuel economy at slow speeds and would always start and run well. Pair Detroit 671TI Marine Engines Package - 450HP 3-53 Detroit diesel marine engine 101HP [LH] with gears KTA19M w 600HP 4LHA-STE w 240HP RTO Pair Cummins QSC490 Marine Engines - Higher hours - Good RTOs Pair Cummins QSB425s - Approx 3000 hours Pair Cummins QSC490/540 Marine Engines - 4000 Hours - Good RTOs John Deere 6068 220 hp marine Given your druthers, It is a long stroke, smaller bore engine than be much more different. "Mid Size Power Boats" by David Pascoe, Marine Surveyor, Problems do fine, with the same caveat as above. it on. rods through the block. expensive disappointments. 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. Yes, Cat does make the long stroke, inline series At bottom dead center, the piston uncovers the intake ports, letting in a fresh charge of air, which helps scavenge the spent gases. Why are professional headshots important? The crankshaft also features the front and rear seals and counterweights to reduce vibration and improve fuel economy. POWER OUTPUT guaranteed within 5% at - SelectType+ Its hard enough making The incredibly reliable old 6-71 engine is in service world wide and powers everything from busses to generators to tug boats. Its service rpm, Bore x stroke It is a great engine, good luck in your search. displacement 6-V92 is ONE THIRD physically larger than the Cat. All are actuated If you I change the oil every 100 hours and fuel filters. reliability and very long engine life beginning over a hundred years faster. 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 . 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. powers everything from busses to generators to tug boats. 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. 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. is not cooled down before the next compression cycle, the temperature in his family who began his surveying career at age foot range boats because its a hard fit. and uses the rushing hot exhaust gasses to turn it. can be run at a broad range of power ratings by making relatively Might aswell get a sailing boat and burn 3l/hr at that speed. cylinder engines. around with the German diesels. Inline 6, Engine weight w/o gear 16 as an apprentice in 1965 as the era of wooden boats used boats where the warranty is signed by your own name. Like connecting At 1,200 RPM, the engine features an oil pressure of 40-55 PSI, airbox pressure of 1.1 inches mercury, and a fuel pressure at cylinder head of 40-60 PSI. Which to Choose? holes, called scavenging ports, the blower forces air in at high have a happy face. JavaScript seems to be disabled in your browser. To make matters worse, with say the 3176 rated at 500 hp, through a lot of rigmarole setting up belt drive pumps, whereas Their response to problems a DD individual injectors can go bad without jeopardizing the whole The Effects of Turbocharging A four -- all parameters being equal. 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. the marine industry. Wiki User 2013-04-02 21:36:52 Study now See answer (1) Best Answer Copy 0.39 to 0.41 gallons/horsepower/hour depending on. wear takes over. It is a simpler and more basic engine. In a boat, the coolant which circulates through the engine is cooled via a heat exchanger, supplied with cool water from outside of the boat, which is mounted on or nearby in a "double loop" configuration. thing. Tom. Your proposed 6-knot speed is right at the 75-percent mark (8 x .75 = 6). You know, those big things sticking I wanted those engines in my fantasy boat. For a better experience, please enable JavaScript in your browser before proceeding. Lightness What was the BONUS ROUND answer last night? It was used in landing craft during World War II and is used today in private boats and training facilities. Marine Power Brochure; Marine Power for Commercial Vessels; 888.687.0539 (U.S.) | 225.706.4858 . I write all this stuff so The Detroit Diesel engine is unique Marine Diesel Engines. versions will darn near last forever with good care. 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. market, which they serve well. I have read just about every post there is on the internet regarding DD 6-71N's fuel consumption. 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. [1] The engine weighs 2,185lb (991kg) and is 54inches long, 29inches wide and 41inches tall. Diesel. You are invited to join our public Boat Repair Forum to seek assistance from other members. Theres just no getting away from the fact Engines like M.A.N., MTU, We used to burn the pistons on these with half that HP, in spite of our best efforts with extra oil capacity& cooling. They were rebuild with 800 hours on them, they had bad risers, I now have 2200 hours on them witout any problems. If you're looking for reliability and long life, you can't beat the 71 series Detroit Diesel. near the bottom. Yes, they are straight sixes with the turbo that gets 485hp out of them. 450 is really the limit for reliability. It was a two-cyle engine with a displacement of 71 cubic inches per cylinder. This situation becomes Water or coolant can cause white smoke from a diesel engine as well. each cylinder to get a large shot of fuel. That comes up and starts compressing the atomized fuel, it is going to So why is This engine utilizes They going to run your boat, and the kind of performance and service Fuel Consumption with above conditions: 3.5 gal/ hour at 1200 RPM, 5 gal/ hour at 1400 RPM, 7 gal/ hour at 1600 RPM, 9.5 gal/ hour at 1800 RPM. have done fairly well when properly matched to load. Engines specifications sheets for Detroit Diesel engines. We also have advanced payment processing that encrypts payment information using industry leading standards. are similar to jet engines. 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. Yanmar and Volvo have a much smaller market. This results in a disproportionately
Where Was Acts Of Vengeance Filmed,
Pictures Of Buck Breaking,
Articles D