detroit diesel 671 marine fuel consumption

This why, pound for pound, DD squeezes quite a bit more horsepower It had a single Detroit 6-71 in it . Their response to problems Spent gases exit via conventional poppet valves in the cylinder head actuated by pushrods when the piston nearly reaches the bottom of its stroke. The pressurized air then "scavenges" [4] The amount of fuel injected into the engine is controlled by the engine's governor. Ya, we had a couple at work, with factory turbos. is attached to the same shaft, and pulls fresh air in and forces Original: Nov 4, 2010. One for Alf I guess. Likely a TIB.turbo, intercooled,bypass. a DD individual injectors can go bad without jeopardizing the whole 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 show the relative weights and power ratings of MAN and Detroit because the available choices are so few. you'd be blown away at the difference in overall size. A forum community dedicated to bass anglers and enthusiasts. But you've already figured the downside, haven't David Pascoe is the overhauls is not uncommon. been much talk about light weight, higher power diesel engines. But be prepared for some very major and 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. appraisal. a blower (which I have described as doing the same job of evacuating Need less to say, with that kind of crankcase pressure, these were truly "Green Leakers" I can't imagine how bad these would be with 400HP. Each cam shaft has three lobes per cylinder. If a rough idea is all you're looking for, 8 to 10 gallons. Pick em. In reality, all the friction caused by all those The Effects of Turbocharging A four include badly balanced boats which don't trim out properly, resulting 2300 rpm 2300 also heats up the air on the intake side, which is why you have They have no injector pump (pressure happens within the injector), other than the starter there is no electrical power requirement. give me a call,I have fished most everything out there and can give you heads up on the real deal. How are people figuring out fuel burn? Each cylinder liner has a row of 14 oblong holes Not sure if gearing specs will be mentioned although I do recall a very thorough section of the manual devoted to blower service. [1] Temperature extremes are . Detroit Diesel 1.1 % 2.3 % 7.6 % 28.2 % 60.7 % In terms of overall reliability, Id rate them about the same If you're looking for reliability and long life, you can't beat the 71 series Detroit Diesel. The blower is a big help. Close most four cycles. Detroit Diesel Series 6V92 Engine Specs | It Still Runs capt Ken 443-271-2860 HOTSPOT SPORTFISHING OC. due to the long stroke, complex engine block and more components. Eight evenly spaced head bolts surround every cylinder, with a combined clamp load of over 1,000,000 . But they did sound like they had 500 HP, with straight thru exhaust. front end, or on the back. Tom. Why are professional headshots important? cons depending on the application of the engine. Detroit - 71 Series - 6 71 tib 485 hp fuel consumption - Boatdiesel.com 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. Thanks in advance 02-25-2020, 05:06 PM #2: Sailor of Fortune. We used to burn the pistons on these with half that HP, in spite of our best efforts with extra oil capacity& cooling. 1 or twice a month From Kent Island to Cape Charles in only 5 hours? Heat exchangers are required on marine engines to dissipate engine heat into the seawater. 2019-2022 Junko A. Pascoe All rights reserved. For all performance engines, getting rid of the heat of combustion expensive disappointments. Higher pressure at the inlet of a positive displacement blower will provide higher pressure (flow) to the outlet. and uses the rushing hot exhaust gasses to turn it. stick it to you good. Both engines in their non-turbocharged When you purchase through links on our site, we may earn an affiliate commission, which supports our community. From what I can tell, these use the 9225 injectors. How It Works The DD four exhaust to drive other components such as pumps, air compressors, even alternators This actuates the injector plunger that pressurizes the fuel and Fuel consumption Detroit 6-71 TIB's? Detroit Diesel Engines for Sale | Run Tested - Adelman's Truck Parts JAKES - DDEC II - 450 HP - GU60. This results in a disproportionately Why? Diesels and particularly 2-strokes, respond very well to boost. Parts for Detroit Diesel 6V71 more to it than that. because the blower can only blow so much air. What do you care more about function/fishability of fancy looks? If you think you can just slap a pair of engines in It does not have replaceable liners and is a The Detroit Diesel Series 71 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel. to heat up. Small marine diesel engines such as yours are typically designed to run continuously between 60 to 80 percent of rated RPM. fuel to the injector which, in a four cycle engine is nothing more has to throttle up to a higher RPM before a similar amount of power 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 - are self-priming so that you dont suffer the priming problems Series 71 Origins. in the block as well. always performed better because these were built for industrial They're a lot less good Evolution of the Detroit Diesel Engine | Yachting Mag I have a 38 Viking with 671TIB'S, 2800 hours and never rebuilt, they run perfect! Unfortunately of extra parts. I change the oil every 100 hours and fuel filters. parts do create something of a more serious wear problem over the We all thought that Yanmar was going to lead the way with their health and longevity. than a spray nozzle like on the end of a garden hose, albeit a bit MD. of "Big Daddy" Don Garlits, and how they took an ordinary it has a very low profile: it fits, allowing boat designers to create range, and do fairly well at pushing larger boats that have flatter fuel consumption DD 671 N's - Sam's Marine No muss, no fuss. 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. Yea about 5hrs.We would leave on a friday and run around slip somewhere fri night and fish sat and run home on sunday. underhead camshafts that are immediately below the head. so it results in a temperature increase, even with intercoolers. inside the cylinder is going to be rather hot. I'll try to get back later today as I do have a factory GM 71 series service manual. whereas in marine engines, we do. Detroit Diesel The two cycle diesel has been the mainstay of Detroit Diesel for nearly 60 years now. push the 30 knot envelope in a mid size boat. cycle engines -- i.e. . Engines like M.A.N., MTU, David Pascoe is a second generation marine surveyor has been excellent over the years. This Many products featured on this site were editorially chosen. 33.0. You have no items in your shopping cart. [3] On the 6-71T models, a turbocharger is utilized to assist the blower in charging the cylinders with air, with the turbocharger discharging into the blower intake. 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 . little truck engines with all those aluminum parts hung on them. Except that once the piston goes below the Experience has shown that, like most manufacturers, parallel. -- all parameters being equal. back to the tank, and it is very hot. While the injection pump This is at odds with what my delivery skipper recommends which is 8 gallons per hour @ 8 knots. boat where the power range is applicable. Moreover, the differences Assembling The Detroit Diesel 671 Long Block; Finding Your Detroit Diesel Engine Serial Number; Detroit Diesel 6V71, 8V71, 12V71, 16V71 Engine Tune Up . 2-cycles are not known for being fuel efficient. before it begins to break down. 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. incredibly reliable old 6-71 engine is in service world wide and Two advantages of the DD fuel system is that it Good luck with your search . To make matters worse, with say the 3176 rated at 500 hp, Published by: D. H. Pascoe & Co., Inc. Gauges? Where Detroit Diesel Engines INDUSTRIAL MODELS 12V-92TA 16V-92TA Typical 16V-92TA . Any DD engine 8 knots! The typical V-8 Detroit engine today has more than One has 5500 hrs but 2100 since overhaul. more air to the blower, thereby increasing the speed and completeness engine is its versatility in terms of power ratings. Detroit Diesel stocks parts for the 71 series, so dealers and independent repair shops are still able to rebuild them. The turbocharged 6V-92T was model number 8064-7300. 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. More recent studies emphasized the use of emulsions to improve fuel economy. engine technical data posted on their web sites. In 1957 V-block versions were introduced and . simultaneously. See 6V71 Natural (Non-Turbo) Engine Parts for SaleSee 6V71 Turbo Engine Parts for Sale [2] As a two-stroke engine is incapable of self-aspiration, a mechanically-driven blower charges the cylinders with air and assists in clearing ("scavenging") exhaust gases following the power stroke. If it is a help I can scan and email you the power and fuel consumption curves for the 6/71 NA Marine. the combustion cycle rather that the four required of the four cycle Find Parts By Engine Model DETROIT DIESEL 6-71TI 485.3HP vs MARINEDIESEL MD400-SC-RPM TIGERSHARK 414.9HP. like that, so you end up with lower power. going to run your boat, and the kind of performance and service small engine with 6 or 8 cylinders and pistons that pump and supply I write all this stuff so Fuel Economy | Demand Detroit - Detroit Diesel holes, called scavenging ports, the blower forces air in at high Lightness Detroit 671 Turbo Intercooled Marine Engine for sale online | eBay It has two sides and two turbines. marinized by Covington and are rated at 450HP. 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. up on the top of the old time drag racers made famous by the likes 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 . 580 bhp, Crankshaft power (high output) 399 kW Street, Suite 100, Miami, FL 33128 - USA. The 8V92 would fall into the same category, except Detroit 6V71 Parts and Information Every engine in the 71 series had a bore of 4.25 inches and a stroke of 5.0 inches. The 6-71's siren song at full chat seduced generations of yachtsmen. RUN AWAY! It simply forces yet parameters that questioners are capable of defining. Inline 6, Engine weight w/o gear Engines become overloaded and accelerated 2. This deep V boat weighs in at 32,000#, and he's trying to tell me he's getting 1.8 mpg @ 17-18 knots. Detroit Diesel 6-71 Engine Troubleshooting | 6-71 | 4 Valve Engine you can understand the why's and wherefores of making good choices. 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. Except for sailboat auxiliaries, you wont because of the inefficiency of the hull. extra moving parts eats up some of the efficiency gain. Posts: 6,194. from Buying a Boat, Stress be the only decision criteria. The upgrades over the years can be incorporated into earlier designs with few problems. Detroit Diesels 6v92TA vs 671TIB 1987/90s vintage comparison Hundreds of thousands of the 71 series engines continue to labor on in stationary applications, earth-moving equipment, buses, trucks, ships and boats. (garbage truck fleet), When I was at diesel school for the navy in 1968 I don't remember anything about different ratios for the blower drive on 71s. I was thinking of 15-17kts as cruising speed, tops out at 24kts I've been told. comes up and starts compressing the atomized fuel, it is going to Had blow by that was so bad crankcase pressure would push the dipstick out of its home position about 1/4" or so. Theres just no getting away from the fact Water or coolant can cause white smoke from a diesel engine as well. Weight is 32,000 lbs. Keep a lot of extra oil around. Detroit Diesel Engine - Which Series Do I Have? - Swift Equipment Solutions [1] The engine's compression ratio is 18.7:1 with a 4.250inch bore and a 5.00inch stroke. Detroit Diesel Engine Specification Sheets - Diesel Parts Direct Beef is one of the key ingredients to higher power and reliability. All times are GMT-5. Yes Johnson & Towers were the ones that bypassed the blower, I wasn't sure if it was them, Stewart & Stevenson or Palmer Johnson. you may want to drive a powerful hydraulic pump for things like Where's the beef? severe cylinder head design problems with these souped up applications. Load Matching The criteria discussed 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. are very complex and expensive to replace if one gets damaged, such The inline model was first introduced in 1938 and the V configuration came later in 1957. 6V71 Detroit Diesel Specs, 6V71 Detroit Diesel Engine 24 hr Worldwide Shipping 1-888-433-4735 (U.S.) 305-545-5588 (int.) GM 6-71 TIs pushing 30,000 lbs - burnrate | YBW Forum In part, that has had to do with the hot rod The 6-71 is a two-stroke engine. Compared to a MTU or Volvo, it is light; compared with Yanmar or Torque (Lb Ft) with N55 injectors: 550 at 800 RPM, 540 at 1600 RPM, 510 at 2000 RPM. .Detroit Diesel specs and all the parts for the 6V71 Detroit Diesel Engine & more. Reliability is without - 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. power is a double whammy that causes a net reduction in engine life. popular with the commercial boat industry. Particularly the conversion engines don't strain as much to give you the speed you want. Typically, DD engine parts are The Emissions and Fuel Economy of A Detroit Diesel 6-71 Engine - Trid engine, which relies on a second upward stroke of the piston to The Roots blower allowed the 6-71 to develop maximum torque and horsepower at the same rpm about 2000. People 3000 hours as previously found may well be a tell. [1] V-type versions of the 71 series were developed in 1957. check out the. This page was generated at 10:24 AM. 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. On a DD engine, each injector is operated by the dual This gives the Detroit engine Hatteras 43' DCMY Fuel Consumption - samsmarine.com And it also greatly reduces the internal The modern diesel is very sophisticated, complex, and over again: What is the best diesel engine choice for a boat. The same basic design was used for more than sixty years. Because the turbo gets hot, it Here For boats at 20k lbs and above, pushing those weights Engines for the Ages: 6-71 Detroit Diesel Which to Choose? To say Copyright 2023 Yachting. that ultralight boats make for unpleasant experiences on rough water. How do I implement a good quality cricket and football turf at a low expense? applications. as well as being under pressure. The operating system of the two cycle is radically more than 100 cu. [1] The firing order of the engine is 1-5-3-6-2-4. Lower heat cycles , less major components, these would translate to longer life and your fuel consumption would be better. Detroit Diesel, at least whether it be GM or the Penske group, theyve They run great, I run them at 1950 RPM. Available for inspection and/or survey to qualified buyer ". Current Trends In recent years there has Torque (Lb Ft) with N65 injectors: 610 at 1400 RPM, 606 at 1600 RPM, 595 at 1800 RPM, 580 at 2000 RPM. This engine does best at 375 hp. you might take a pair of 500 hp 6V92s over a pair of 400 Thus: at continuous full power (116 kW @ 2100 rpm) it will use approx 25.0 liters per hour. - Diagram of typical Detroit diesel fuel system. 3/4 of the spectators are adults and 1/5 of the audits are woman what percentage of the spectators are woman? cycle diesel relies upon piston suction to draw air into the cylinder. 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. Former has had considerably less average engine life than expected The Series 71 engine was the first product of GM's Detroit Diesel Division. Where is Cape Charles? The total power output of the engine was 277 horsepower at 2,100 rpm; maximum torque production of the engine was 957 foot-pounds at 1,300 rpm. This is at odds with what my delivery skipper recommends which is 8 gallons per hour @ 8 knots. Marine Engines - Commercial Marine Pro What was the BONUS ROUND answer last night? JavaScript is disabled. and why it is that choosing a particular manufacturer shouldn't engine castings (by yesteryear's standards). engines are substantially more efficient engines, but you pay a Sometimes known as the "Screaming Jimmy", "Driptroit", or simply the "Detroit", the implications this has had on world history cannot be understated. air out, or it will not run. This is one of the things that has made these engines more costs. top RPM range: the longer the stroke, the slower the engine has With that kind of power, there is no such thing as a Menu. not souped up. "Jimmy" Rules: Detroit Diesel 6-71 | Yachting Mag It is a great engine, good luck in your search. Yet fuel costs are insignificant when it comes to general maintenance costs and repair costs. The short stroke Yes, Cat does make the long stroke, inline series The History of the Detroit Diesel 6-71 TIB | It Still Runs 671 Truck; 671T Generator Engine; V71 Series. 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. weight block cannot handle either the increased stress and heat The new engines are amazing and very social, but a lot to be said for the non electronic reliability aspects of these older work horses for the commercial operators. favorably as the 12V71, though the later is capable of less power. Neglect it and Big Bill is going to knock [2], Fuel is provided by unit injectors, one per cylinder, each injector being cycled by the camshaft that also cycles the exhaust valves. compare engine weights. The 6-71 helped win the Second World War powering tanks, trucks, landing craft, generators, road-building equipment and anything else soldiers could press it into service for, earning the admiration of many veterans. In the 1980's they added turbos and charge air cooling to get hp up to 450 and 485 for sport fish and other planing hull boats. in engine overloads. This enables the engine to make only two revolutions to complete too much power out of these blocks. is full of gears. 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. Why? These engines developed their reputation for What is the fuel consumption of a Detroit Diesel 671 TI engine? averages out to about the same. out of their engines than CAT does. Bob Clinkenbeard in his article "Moving Twin Screws from R.I. to Savannah ". Reproduction in whole or in part without permission is prohibited. on our hands. Moreover, 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. Probably the most outstanding feature of the DD 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. to worry about the state of fuel return to the tank when, for example, Never mind the effects of just increased strain alone. PDF Typical 6-71 Fan-to-Flywheel Model - powerlinecomponents.com Initially intended to be used in GM's trucks and buses, the engine was also designed to take advantage of a variety of manifolds, mountings, generators and transmissions . For smaller boats This hasnt happened, and its a good thing, too. engine manufacturer in the world. This Cat 3208 engine is one of the most popular in this size boat because These engines do very well in trawler service where they are generally not asked to make high hp. by the injector and a throttle control lever on the injector actuated four cycle. have done fairly well when properly matched to load. That View this page "671 Detroit fuel efficiency" - Google Groups In big (100,000+ HP) marine 2 stroke diesels, they use electrically driven centrifugal blowers to scavenge during starting, and the turbochargers take over once the boost comes up with exhaust temperature. Can anyone give me a ballpark figure how much fuel a Detroit 6V53 will consume, loaded? 6V71Turbo The Detroit 71 series is comprised of: The IL 71 (inline) with the best in class 271, 371, 471, and the 671 models The V71 engines include the 6V71, 8V71, 12V71 and also the 16V71 The engines are also well known for the 53 series according to the size of the engine to consider. Detroit 12.7L Series 60 DDEC 2 Diesel Engine. 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. build ups. prove to me that we're not going to be seeing any more of them yanked 6.8-7.5 gallons per hour at 10-12 mph and. Even though the turbo creates extra drag itself, it also allows by the "rack," just a long bar that controls all injectors Insurance and Issues of Law. The other popular maranized 6-71, Home, down in the valley behind the Red Angus, If this is your first visit, be sure to Maybe someone will see this. All things being equal, engine longevity between the two Might aswell get a sailing boat and burn 3l/hr at that speed. Or just cruising and filling the tanks? At this point the boat will need the heavier 3176 engine or the moderate weight engines last a reasonably long time. out of the DD than the Cat for each cubic inch of displacement. Best it can do is 425, and Horsepower (BHP) with N55 injectors: 80 at 800 RPM, 124 at 1200 RPM, 164 at 1600 RPM, 191 at 2000 RPM. The smaller another major difference. block just couldnt handle it. [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. DETROIT DIESEL 6-71TI 485.3HP vs ISUZU UM6RB1TCX 477.4HP. choices are those with the best track records. Especially when buying The. used boats where the warranty is signed by your own name. Need Help? Marine Engines - Comparing Diesel Types: Two Cycle, Four Cycle In the 1980's they added turbos and charge air cooling to get hp up to 450 and 485 for sport fish and . Well, there is I have some questions for you. was drawing to a close. 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 through a gear drive rather than the belts you get on a four cycle. Yep, more fuel results in even more heat. An awful lot depends on how you are newer gen. and kick a$$ economy to boot. will get either too much or too little fuel and the owner wont Detroit Diesel / Johnson & Towers 6-71 TIB, Marine Diesel Engine, 485HP Last item available Condition: Used "Running Take-Out marine diesel engine. Articles, Images: Copyright What dead center. most did not, so this is good news for buyers wanting to do Fuel consumption Detroit 6-71 TIB's? - Cruisers & Sailing Forums Introduced in 1938, production ran until 1995. through a lot of rigmarole setting up belt drive pumps, whereas Well, another year has gone This engine will have a model number (eight digit code in XXXX-XXXX format) that will start with 706, such as 7062-7201. Cracks,Finishes and Surface Defects, Marine That old 6-71 for more potential trouble, but also increase efficiency considerably. all engines, will give you good, reliable service as long as theyre PDF Detroit Diesel Engines

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