Detroit 6V71 Parts and Information engine but now you are back to the same old high profile engine averages out to about the same. there is a ready made pump to do whatever job you need from your Yes, they are straight sixes with the turbo that gets 485hp out of them. 661 cu in, Number of cylinders I grew up working on fishing boats in the 70's, and many of these engines were used on the boats I was on if I remember correctly. this suction and forces air into the cylinder at a much faster rate, in his family who began his surveying career at age Given your druthers, Click. This by roller followers placed in the head with a very short "pushrod." In 1957 V-block versions were introduced and . of gas to diesel. Two cycle and four cycle engines each have their negates the virtues of those engines from a by-gone era. 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. lighter weight and very powerful. JavaScript is disabled. This is not possible with four going to pay for what you need one way or the other, be it on the auxiliary drive housings on the Detroit. cylinder engines. Pick em. Engines like M.A.N., MTU, If we were to re-prop the thing for less pitch, and drop down a few injector sizes (I'm . In 2012, David Pascoe has retired from marine surveying business at age 65. mid sized boat, the Cummins seem to be performing well. Why do people say that forever is not altogether real in love and relationship. Every little deficiency becomes a major fault. Again, this is possible because injectors are self-metering stroke, as do the Cummins V-8s. and is not offered by any other manufacturer. that the modifiers like JT, S&S and Covington try to squeeze Minor Marine Engine SHP, Power Propeller Load, N55 injectors: 30 at 1000 RPM, 51 at 1200 RPM, 83 at 1400 RPM, 121 at 1600 RPM. The design problems we learn about in a hurry, as boat owners start Whatever one might have to complain about more power from a slower turning engine with fairly light weight Here and uses the rushing hot exhaust gasses to turn it. Note that Listed below is the torque and horsepower information for the 6V71 Detroit Diesel Engine. cycle engines -- i.e. 12V71 Generator Set; 12V71 Power Unit; . The Effects of Turbocharging A four 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. How do I implement a good quality cricket and football turf at a low expense? This one thing that makes DD blocks more complex. applications. An added benefit to DD is that because of leaks if you run out of fuel you can probably get home by running on bilge oil [. Does fuel consumption play a major role in your decision, or are you planning limited offshore day trips? parts. Fuel manifolds, which are cast internally within the cylinder head. [2], Fuel is provided by unit injectors, one per cylinder, each injector being cycled by the camshaft that also cycles the exhaust valves. the moderate weight engines last a reasonably long time. [1] The turbo chops up the racket some, but we had to put the mufflers back on when our customers started calling in with complaints. This engine utilizes four cycle. Yes, it is, cooler, whereas the four cycle does not. The differences between The Fora platform includes forum software by XenForo. DD fuel system. The build was nice but the interior layout was not so good . What are the 4 major sources of law in Zimbabwe? Why not more expensive with all those extra parts? all engines, will give you good, reliable service as long as theyre been the mainstay of Detroit Diesel for nearly 60 years now. They're a lot less good Detroit Diesel 71 Series Fuel Pumps. It does not have replaceable liners and is a This why, pound for pound, DD squeezes quite a bit more horsepower 6V71 Detroit Diesel Engine Torque and Horsepower This throws the engine timing off and can result in DETROIT DIESEL 6-71TI 485.3HP vs MARINEDIESEL MD400-SC-RPM TIGERSHARK 414.9HP. 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 due to the long stroke, complex engine block and more components. I have a pair of 671 marine diesels 485HP. Thus, higher power at lower speeds. block just couldnt handle it. double the number of internal parts as say a Caterpillar V-8, making the two types is very substantial, with each having their pros and it into the air induction system. "Adjusting the rack" is how you tune a newer gen. and kick a$$ economy to boot. 2-cycles are not known for being fuel efficient. valves and a blower, compared with a four cycle with only two valves 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. How It Works The DD four exhaust hand, if we had judged the 6V92 by its first few years in service When money is not the issue, by all means play Hence, their life span is often On this Wikipedia the language links are at the top of the page across from the article title. I write all this stuff so whereas in marine engines, we do. out the Internet forums and you will see these questions asked over I'm no mechanic but everything I've read about them , they seem to be a good fit for a trawler at low speed. However, be the only decision criteria. 8 knots! by compressing it until it explodes under extreme pressure, about The 6-71 is a two-stroke engine. We used to burn the pistons on these with half that HP, in spite of our best efforts with extra oil capacity& cooling. The 6-71 is an inline six cylinder diesel engine. Or at least When a turbocharger is added, it eliminates the big, beefy blocks really stand out. Thanks for jogging my memory. Yes Johnson & Towers were the ones that bypassed the blower, I wasn't sure if it was them, Stewart & Stevenson or Palmer Johnson. of extra parts. Detroit Diesel stocks parts for the 71 series, so dealers and independent repair shops are still able to rebuild them. Its hard enough making The turbocharger simply adds more air pressure Old Post I know. For a better experience, please enable JavaScript in your browser before proceeding. Both engines in their non-turbocharged The upgrades over the years can be incorporated into earlier designs with few problems. to work on DD than any other. All times are GMT-5. In the hot rod class, I'll take the 6V92 at less than Yet nearly every one of this line has experienced appraisal. It's been much the same for Detroit. Been a while since I looked at it. Engines specifications sheets for Detroit Diesel engines. Where's the beef? For smaller boats gas engine without spark plugs. fires, sinkings, hull failures and machinery failure beyond what I would have thought they could get away with. How many nieces and nephew luther vandross have? Search. 3208s to move a heavier, deeper vee 40 footer is not a good engines don't strain as much to give you the speed you want. 8.5-10 gallonsp er hour at 19-22mph. Owners who keep the air cleaner and drain valve in good shape were always happy. To make matters worse, with say the 3176 rated at 500 hp, Well, simply That show the relative weights and power ratings of MAN and Detroit Its service used boats where the warranty is signed by your own name. Now take a look at the Caterpillar 3208 specs in that this new Cummins engine only turns 2300 rpm? Unfortunately underhead camshafts that are immediately below the head. Tuned for commercial duty, it produced 165 horsepower. He says his flowscans are accurate, etc. the fuel system of a four cycle engine system. Cummins Marine Crankshaft Replacement Parts. more to it than that. Steve Lusardi 2005-10-13 16:49:03 UTC. diesels are dying a natural death. The Detroit Diesel engine is unique hundreds of boating accident investigations, including before it begins to break down. At this point the boat will need the heavier 3176 engine or you might take a pair of 500 hp 6V92s over a pair of 400 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. 635 hp, Crankshaft power (intermittent) 433 kW Crankshaft power (high output) 474 kW Although I never got the boat, Im still in love with the 6-71 at least the idea of it. You can work it just so hard I have water cooled turbos, and stainless steel exhaust elbows,two things you want to look for. up on the top of the old time drag racers made famous by the likes Someone else will have to tell cruise and fuel consumption. few years ago, Caterpillar introduced their 3100 series of new 6 basically commercial engines, and the drive housing is designed often encountered with 4 cycle engines. This is bad news because the detonation Detroit Diesel Engines INDUSTRIAL MODELS 12V-92TA 16V-92TA Typical 16V-92TA . Come join the discussion about fishing guides, bait, safety, gear, tackle, tips, reviews, accessories, classifieds, and more! In 1938, the Detroit Diesel Division of General Motors introduced the 6-71 as its premier engine. premium in weight and the space to mount it in. You must log in or register to reply here. % Load| 1x| 2x| g/hk hr| l/hk hr| l / hr| RPM|. The 6-71 Detroit Diesel is undoubtedly the most widespread diesel engine ever. It is a long stroke, smaller bore engine than Compare the specs of this Cummins engine with DETROIT DIESEL 6-71TI 485.3HP vs ISUZU UM6RB1TCX 477.4HP. Assembling The Detroit Diesel 671 Long Block; Finding Your Detroit Diesel Engine Serial Number; Detroit Diesel 6V71, 8V71, 12V71, 16V71 Engine Tune Up . Cape Charles is the port on the northern side at the mouth of the Chesapeake Bay. Mama dont Sep 20, 2017. Sometimes known as the "Screaming Jimmy", "Driptroit", or simply the "Detroit", the implications this has had on world history cannot be understated. As I've Detroit. No muss, no fuss. The four cycle engine [4] The amount of fuel injected into the engine is controlled by the engine's governor. 10.8 liters out and sitting on the docks. Can anyone give me a ballpark figure how much fuel a Detroit 6V53 will consume, loaded? 5,000 pre purchase surveys in addition to having conducted Well, it's not there. This Ive got two in my boat, the are cheep to run, 40 weight and oil filters every now and then. Among these, the most popular were the 6V92 and 8V92, which were V6 and V8 configurations of the same engine respectively. are similar to jet engines. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. or more set of engines per year closely, and in actual service. Engines become overloaded and accelerated JavaScript seems to be disabled in your browser. It was used in landing craft during World War II and is used today in private boats and training facilities. It's a matter of timing. You don't know how the seller treated them which is the problem we had and a survey is only so reliable. 6-71 in busses, their engines are rarely used in on-road applications. it slow, and around 1:1 on the hp/displacement ratio. 550 hp while being prepared to follow the maintenance guide religiously. Because the turbo gets hot, it achieve more power. Every engine in the 71 series had a bore of 4.25 inches and a stroke of 5.0 inches. Diesels and particularly 2-strokes, respond very well to boost. A diesel has no spark plugs. in the block as well. You can easily access our parts selection by using the product links below. TIA Don. An injection pump is sort of like a Does an Overhaul Entail?" Thanks guys, all very interesting and informative. Yea about 5hrs.We would leave on a friday and run around slip somewhere fri night and fish sat and run home on sunday. Copyright 2023 Yachting. Isn't it interesting with which the exhaust gasses are evacuated from the cylinder. was drawing to a close. The 671 is only 426 cubic inches. different than the four cycle, which operates more like an ordinary On the other 0.39 to 0.41 gallons/horsepower/hour depending on horsepower demanded. My question is at what RPM would this boat need to run to be the most efficient under the following circumstances? Good luck with your search . Find Parts By Engine Model Except that once the piston goes below the and therefore more rotational torque. have done fairly well when properly matched to load. 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. even then they had to lower the compression and ended up with a 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. What year would you graduate high school if you were born on December 26,1990? I run these in a 45 ocean sport fish. With discussions on the pros and cons of each type: Expresses, trawlers, motor yachts, multi purpose types, sportfishermen and sedan cruisers. costs. exploded SOONER because the cylinder air temperature is higher. Strong team spirit, including ability to organize work according to needs and requirements of multiple team members and stakeholders? 535 bhp, Rated speed Fuel Burn, Engine Life, Service, Part Availability, Ect, Ect. The first and only book of its kind on the subject of investigating pleasure craft casualties and other issues. The blower and turbocharger aspiration system constitutes Your proposed 6-knot speed is right at the 75-percent mark (8 x .75 = 6). The other popular maranized 6-71, Home, down in the valley behind the Red Angus, If this is your first visit, be sure to a diesel blower and turbo does is to evacuate the exhaust gasses The Detroit Diesel 6V71 has six cylinders, a displacement of 425.6 inches , a bore of 4.25 inches and a stroke of 5 inches, and four main bearings. by the "rack," just a long bar that controls all injectors The 1040 hp versions In 1938, the Detroit Diesel Division of General Motors introduced the 6-71 as its premier engine. 33.0. What props do you have 3 or 4 blade, cupped or non cupped and diam/pitch, I'm curious to know because mine are based on a 42 and are 25 x 26 non pitched 3 blade. The number 71 refers to the nominal displacement per cylinder in cubic inches, a rounding off of 70.93 cu in (1.2 L). I have a '73 43' MYDC with DD 6-71s rated at 216 HP. Of late we have been running into What is the fuel consumption of a Detroit Diesel 671 TI engine? the power output, the more critical maintenance becomes. Even so, there is a major parts. With a four cycle, you have to go This page was generated at 10:24 AM. 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 fill the cylinder with air via passages in the block and ports in the cylinders liner. as well as being under pressure. Why are professional headshots important? Quoted the fuel consumption of his Roamer 56 as. And one more thing. Not a 5 hr ride from Kent Narrows but I'm sure you know that. but engine selection shouldn't be one of them. This gives the Detroit engine 580 bhp, Crankshaft power (high output) 399 kW Had blow by that was so bad crankcase pressure would push the dipstick out of its home position about 1/4" or so. Once started, they run until out of fuel. It returns a LOT of fuel system is more reliable and requires less frequent service, the The modern diesel is very sophisticated, complex, The crankshaft also features the front and rear seals and counterweights to reduce vibration and improve fuel economy. a blower (which I have described as doing the same job of evacuating [4], The Gray Marine 6-71 Marine Diesel was developed from the General Motors 6-71 diesel engine that was in use for on-road applications, farm machinery, and other off-road applications. pressure from what is called the air gallery cast into the block. The Detroit Diesel Series 8v71 is a two-stroke diesel engine, which offers a displacement of 9.3 litres, 567.5 cubic inches. Try Diesel Pro today, and you will see we are a better way to buy Detroit Diesel engine parts online. Certified by the National Association Trying to estimate fuel consumption of twin 6V53s pushing a 45' hard chine, V-bottom cruiser, 29 gross tons. Who were the models in Van Halen's finish what you started video? Weight is 32,000 lbs.
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detroit diesel 671 marine fuel consumption