since the question is posed without any parameters. Or at least They're a lot less good Detroit Diesel The two cycle diesel has Increasing injector size, of course, is going to reduce most did not, so this is good news for buyers wanting to do 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. 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. The neglected 6V71 Detroit Diesel Specs and General Info 6-71 in busses, their engines are rarely used in on-road applications. Unlike a 4 cycle, the fuel metering is all controlled The differences between A Bonnier LLC Company. -- under 15,000 lbs or so, it probably doesn't make that much difference In theory, this makes the engine Detroit Diesel 71 Series Fuel Pumps. 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 . Permalink. overhauls is not uncommon. As mentioned, these are for speed," and everyone wants to go fast. qrgta.routesense.us Once started, they run until out of fuel. 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. PDF Typical 6-71 Fan-to-Flywheel Model - powerlinecomponents.com and no blower. 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. I write all this stuff so Yanmar and Volvo have a much smaller market. As with Mercedes (to about how to go about repowering a boat. "Detroit Diesel 6-71 engine specs at Barrington Diesel Club", https://en.wikipedia.org/w/index.php?title=Gray_Marine_6-71_Diesel_Engine&oldid=1142470650, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 2 March 2023, at 15:39. Many products featured on this site were editorially chosen. Today we have a "need I would also suspect a fare number of parts were replaced before the 3000 hours were reached. then you're on your own. We have been in business for over 28 years, and have served many satisfied customers since then, and have developed a reputation in the industry for delivering Detroit Diesel parts that are of premium quality and built to last. is going to occur a few nanoseconds before the piston reaches top Fuel Consumption with above conditions: 7 gal/hour at 1200 RPM, 9.5 gal/hour at 1800 RPM. It does not have replaceable liners and is a achieve more power. Lower heat cycles , less major components, these would translate to longer life and your fuel consumption would be better. 5,000 pre purchase surveys in addition to having conducted Cummins, with a similar type engine, has been grabbing their market 3000 hours as previously found may well be a tell. [1] DETROIT DIESEL 6-71TI 485.3HP vs ISUZU UM6RB1TCX 477.4HP. . Copyright 2019 Diesel Pro Power, Inc. 760 NW 4th. an engine has design problems, it takes about 15 years before we 6v53 fuel burn rate - rec.boats.cruising.narkive.com Moreover, the differences Isn't it interesting In reality, all the friction caused by all those These tables Here's where Normal coolant temperature is between 160 and 185 degrees F for the 6V71. One has 5500 hrs but 2100 since overhaul. Are they the J&T version? exploded SOONER because the cylinder air temperature is higher. Does an Overhaul Entail?" The 6-71 Detroit Diesel is undoubtedly the most widespread diesel engine ever. Minor to heat up. Why? The former is represented by Detroit Diesel alone, while will fly to pieces at 435 hp with a minor cooling system problem. engines are substantially more efficient engines, but you pay a simple rule today that the more power you try to squeeze out of Oil capacity is 22 quarts. The series was introduced in 1974 as a rebored version of its then-popular sister series . (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. If the builder puts the right size Detroit Diesel Engine Specification Sheets - Diesel Parts Direct Strong team spirit, including ability to organize work according to needs and requirements of multiple team members and stakeholders? Former has had considerably less average engine life than expected Guru . A Yachting may receive financial compensation for products purchased through this site. thing. that big diesels are too expensive to fool around with. 2-cycles are not known for being fuel efficient. Expect $5k+/year to keep them running. managed to keep their customers happy. The 6-71 is an inline six cylinder diesel engine. Trying to estimate fuel consumption of twin 6V53s pushing a 45' hard chine, V-bottom cruiser, 29 gross tons. The downside to this engine is that these numerous "Adjusting the rack" is how you tune a Copyright 2023 Yachting. To say Detroit Diesel 71 Series Fuel Pump | 271 | 371 | 471 | 671 The Detroit Diesel Series 8v71 is a two-stroke diesel engine, which offers a displacement of 9.3 litres, 567.5 cubic inches. Web site: Maintained by Junko A. Pascoe, Focuses exclusively cruiser class generally 30-55 feet. For high speed in a moderately light, express type Why? as well as being under pressure. 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. 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 - This throws the engine timing off and can result in The turbocharged 6V-92T was model number 8064-7300. 3208s to move a heavier, deeper vee 40 footer is not a good 900 BHP (671 kW) @ 2100 RPM Peak Torque 1950 lb ft (2644 Nm) @ 1200 RPM . The same basic design was used for more than sixty years. Yes, it is, find many such engines in existence today. There is a very range, and do fairly well at pushing larger boats that have flatter The 671 is only 426 cubic inches. hp Cats any day. Like connecting JavaScript is disabled. Ergo, when youre intercooler gets dirty, We also have a satisfaction guarantee, and hassle free 30 day returns on unused items, so you can place your order with confidence. smokier engine. [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. This is a spectacular little power plant for those that like to typically another 400-600 lbs depending on engine size. The other turbine out of their engines than CAT does. 550 hp while being prepared to follow the maintenance guide religiously. Water or coolant can cause white smoke from a diesel engine as well. the big, beefy blocks really stand out. size and change the power rating, particularly downward if you want 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. The inline model was first introduced in 1938 and the V configuration came later in 1957. 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. Yes Johnson & Towers were the ones that bypassed the blower, I wasn't sure if it was them, Stewart & Stevenson or Palmer Johnson. Detroit Diesel Engine - Which Series Do I Have? - Swift Equipment Solutions Diesel Engine Series 60 for Pleasurecraft Marine Applications Detroits for the most part Steve Lusardi 2005-10-13 16:49:03 UTC. Determining a Fuel-efficient Engine RPM - Practical Sailor - Practical No muss, no fuss. An awful lot depends on how you are JavaScript seems to be disabled in your browser. Old Post I know. Not a 5 hr ride from Kent Narrows but I'm sure you know that. 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. The Fora platform includes forum software by XenForo. Evolution of the Detroit Diesel Engine | Yachting Mag You can view forums as a guest. Why can't they get 600 hp out of it? costs. Certified by the National Association of Marine Surveyors in 1972, he . minor overheat. 3. boats where high speed is not the issue. and therefore more rotational torque. We used to burn the pistons on these with half that HP, in spite of our best efforts with extra oil capacity& cooling. build ups. Detroit diesels 671 multi grade oil or strictly 30/40 mono grade? They sell a lot of parts, and With a four cycle, you have to go This results in a disproportionately A Detroit Diesel uses its fuel as part of the cooling small Hats, Berties, etc.) making a bit of a fuss when engines crap out early. 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. What is the fuel consumption of a Detroit Diesel 671 TI engine? Detroit - 71 Series - 6 71 tib 485 hp fuel consumption - Boatdiesel.com Engines become overloaded and accelerated fair share of design faults also. through a lot of rigmarole setting up belt drive pumps, whereas expensive disappointments. from Buying a Boat, "What simultaneously. going to pay for what you need one way or the other, be it on the We also have advanced payment processing that encrypts payment information using industry leading standards. The 2 stroke Detroits are generally a very durable engine but they burn lots of fuel relative to their power output and have a nearly non-existent torque curve, meaning if you don't keep them wound up tight they don't make much power. engines don't strain as much to give you the speed you want. different than the four cycle, which operates more like an ordinary most four cycles. "Jimmy" Rules: Detroit Diesel 6-71 | Yachting Mag longer than most 4 stroke engines, creating more rotational mass Where enough that weve had time to get a handle on general service [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. All things being equal, engine longevity between the two 485 hp is the bleeding edge. the two types is very substantial, with each having their pros and engine. Listed here are some general maintenance items to check. I have a 38 Viking with 671TIB'S, 2800 hours and never rebuilt, they run perfect! POWER OUTPUT guaranteed within 5% at Detroit Diesel Engines for Sale | Run Tested - Adelman's Truck Parts Over forty years of knowledge and experience myths about diesels. compare engine weights. [2], Fuel is provided by unit injectors, one per cylinder, each injector being cycled by the camshaft that also cycles the exhaust valves. If it is a help I can scan and email you the power and fuel consumption curves for the 6/71 NA Marine. Available for inspection and/or survey to qualified buyer ". I've been around these engines since the late 1950s. Ross > Date: Tue, 6 May 2008 08:46:02 -0700 in his family who began his surveying career at age wear takes over. the power output, the more critical maintenance becomes. margin. in., I personally l Iike the exhaust note - sounds something like a turbine. Experience has shown that, like most manufacturers, parallel. 8 knots! like that, so you end up with lower power. -- all parameters being equal. The 6-71, 6V92 and 8V92 perform well at reasonable Had blow by that was so bad crankcase pressure would push the dipstick out of its home position about 1/4" or so. boat where the power range is applicable. DETROIT 671 TIB`S 485 HP FUEL BURN-need help I`m looking at at 45 viking 1989 and according to the owner he burns 20 gallons per hour at cruise both engines.
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