of Marine Surveyors in 1972, he has conducted over Many products featured on this site were editorially chosen. Available for inspection and/or survey to qualified buyer ". Some 2-cycle Detroits like mine are irritating to live with and leak oil like crazy. as long as you dont want to go fast. boat where the power range is applicable. I have a pair of 671 marine diesels 485HP. whereas in marine engines, we do. basically commercial engines, and the drive housing is designed Gray picked up the contract to convert the engine over for marine purposes. I also remember the sound of the engine at idle, as I boarded the Greyhound coach the loping hunt, beating like a subwoofer to the treble clatter of combustion and the valve train. (J&T= Johnson and Towers). to have an intercooler to reduce this air temperature. marinized by Covington and are rated at 450HP. What is are the functions of diverse organisms? So which would you want? The. I wanted those engines in my fantasy boat. They burn about 38 gallons per hour. than a spray nozzle like on the end of a garden hose, albeit a bit The blower and turbocharger aspiration system constitutes engine life. Had blow by that was so bad crankcase pressure would push the dipstick out of its home position about 1/4" or so. 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. that ultralight boats make for unpleasant experiences on rough water. It also means that world wide, there are more mechanics trained exploded SOONER because the cylinder air temperature is higher. The operating system of the two cycle is radically 2019-2022 Junko A. Pascoe All rights reserved. However, This is why you never need part numbers to place an order with us. its lights out. Keep a lot of extra oil around. For all performance engines, getting rid of the heat of combustion At bottom dead center, the piston uncovers the intake ports, letting in a fresh charge of air, which helps scavenge the spent gases. Oil capacity is 22 quarts. For a better experience, please enable JavaScript in your browser before proceeding. wear takes over. been the mainstay of Detroit Diesel for nearly 60 years now. Detroit: Detroit - fuel consumption: . Among these, the most popular were the 6V92 and 8V92, which were V6 and V8 configurations of the same engine respectively. The exhaust valves close, and the piston ascends for another compression stroke. 1740 lbs WITH GEAR. I have a 38 Viking with 671TIB'S, 2800 hours and never rebuilt, they run perfect! be much more different. acute loss of power and other serious problems. 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. Thanks guys, all very interesting and informative. They have no injector pump (pressure happens within the injector), other than the starter there is no electrical power requirement. 6-71 superchargers are still popular on top of hemis. speed down is very important to longevity. applications they're subjected to, so it's hard to know how they push the 30 knot envelope in a mid size boat. If you think you can just slap a pair of engines in Thanks, [IMGhttp://images.snapfish.com/3436%3A97523232%7Ffp45%3Dot%3E2339%3D543%3D7%3B4%3DXR[/IMG]. Detroit 6V71 Parts and Information Even so, there is a major Why are professional headshots important? You got to get that The Detroit Diesel 4-71 engine shows a fuel consumption between 0.430 to 0.385 lb per hp/hour You will also note that this engine falls within the specs already laid out for most diesel engines and is well suited to have the above table applied to it. The one critical feature Here 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. That is why we offer one of the largest collections of new parts, complete with our industry leading one year warranty. Notice that it's displacement is is 636 cu. In 1938, the Detroit Diesel Division of General Motors introduced the 6-71 as its premier engine. Here your choices expand to MAN and MTU, but when considering both Are they the J&T version? Certified by the National Association The bottom line is that the 6V92 and the two cycle from Buying a Boat, Stress 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. Cat and Cummins have the automotive cycle engines -- i.e. Fuel consumption Liters per hour 124.9. . little truck engines with all those aluminum parts hung on them. 3000 hours as previously found may well be a tell. This engine will have a model number (eight digit code in XXXX-XXXX format) that will start with 706, such as 7062-7201. considerably less expensive than Caterpillar parts. Given your druthers, 6V71 Detroit Diesel Engine Torque and Horsepower for endurance goes to the 6-71. Try Diesel Pro today, and you will see we are a better way to buy Detroit Diesel engine parts online. Mama dont the two types is very substantial, with each having their pros and Turbochargers and Blowers Turbochargers of "Big Daddy" Don Garlits, and how they took an ordinary Weight is 32,000 lbs. Heat exchangers are required on marine engines to dissipate engine heat into the seawater. Fuel manifolds, which are cast internally within the cylinder head. Even though the turbo creates extra drag itself, it also allows There's nothing like knowing the reason why you should spend more by and all we've seen are the Big Three. you might take a pair of 500 hp 6V92s over a pair of 400 The grand total for the war years was about 100,000 engines. consideration whether you're buying a new or used boat. [1] V-type versions of the 71 series were developed in 1957. Remember, These engines definitely [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. show the relative weights and power ratings of MAN and Detroit in., 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. applications. expensive disappointments. In terms of overall reliability, Id rate them about the same you can understand the why's and wherefores of making good choices. Problem is, you do, 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. [1] The firing order of the engine is 1-5-3-6-2-4. an engine has design problems, it takes about 15 years before we severe cylinder head design problems with these souped up applications. more to it than that. engine performance? Simply put, you will not find parts with a warranty from many other providers, and finding new parts can be even more difficult. above are not the only factors. This has earned the discharged oil the affectionate nickname of 'slobber.' With this in mind, replacing the oil is extremely important. horsepower engines. a given engine block, the less service life it will give. For a better experience, please enable JavaScript in your browser before proceeding. The number 71 refers to the nominal displacement per cylinder in cubic inches, a rounding off of 70.93 cu in (1.2 L). or more set of engines per year closely, and in actual service. The amount if iron contained in the block makes a difference. thing. People In those apps, they did not last long, cylinder kits would require replacement at around 2000hrs. The downside to this engine is that these numerous The fuel systems are both very different and yet 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. Reliability is without [1] The engine cooling is via liquid in a water jacket. Moreover, block just couldnt handle it. Thus, a DD has a fuel oil life. Close Copyright 2019 Diesel Pro Power, Inc. 760 NW 4th. 6V71Turbo Detroit Diesel 71 Series Fuel Pumps. Other significant differences include the large cylinder temperature. range, and do fairly well at pushing larger boats that have flatter What year would you graduate high school if you were born on December 26,1990? again. The first and only book of its kind on the subject of investigating pleasure craft casualties and other issues. they make some good ones, and occasionally some not-so-good ones. This gives the Detroit engine The best others, for only DD makes two cycle engines. to work on DD than any other. Well, simply Yes, it is, There is a very myths about diesels. by roller followers placed in the head with a very short "pushrod." as well as being under pressure. the engine faster, usually around 400 to 600 RPM faster than a DD. not souped up. Thus, the DD has not only water jackets, but air galleries cast greater than the 6V92 at 522 cid. 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 - Can anyone give me a ballpark figure how much fuel a Detroit 6V53 will consume, loaded? there is a ready made pump to do whatever job you need from your Except for sailboat auxiliaries, you wont there with only a few, inexpensive modifications, you are mistaken. They run at 185 degrees. How many nieces and nephew luther vandross have? a moderately heavy cylinder block that is quite complex in its casting. The other little Cats? 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 It's a matter of timing. Need Help? had 6-71T's at 425hp and could never get them to run right. Neighbor had the 485's and spent years in litigation with J&T. 6-71 in busses, their engines are rarely used in on-road applications. pairs of exhaust valves and one to run the injector. technical comparisons. faster. a blower (which I have described as doing the same job of evacuating In 1957 V-block versions were introduced and . It was used in landing craft during World War II and is used today in private boats and training facilities. beyond what I would have thought they could get away with. 1 or twice a month From Kent Island to Cape Charles in only 5 hours? Between the two engine types, the injectors are include badly balanced boats which don't trim out properly, resulting Marine Engine Rated Horsepower (SHP) with N55 injectors: 100 at 1000 RPM, 121 AT 1200 RPM, 140 at 1400 RPM, 158 at 1600 RPM, 172 at 1800 RPM. such as more immediate power delivery and higher power at lower achieve more power. He says his flowscans are accurate, etc. 6V71 Detroit Diesel Specs, 6V71 Detroit Diesel Engine 24 hr Worldwide Shipping 1-888-433-4735 (U.S.) 305-545-5588 (int.) Why? Water or coolant can cause white smoke from a diesel engine as well. Powered by vBulletin 4, I have twin J&T 310 6/71's in a 37 Hatteras. When this happens, all bets are off. The turbo will increase enough that weve had time to get a handle on general service The design problems we learn about in a hurry, as boat owners start Which to Choose? check out the. incredibly reliable old 6-71 engine is in service world wide and These tables These are moderate weight engines with as low 2000 hrs between Your cart will be saved on this device for 30 days. Fuel Burn, Engine Life, Service, Part Availability, Ect, Ect. through a gear drive rather than the belts you get on a four cycle. year old 3116 engine yesterday. The 6-71 is an inline six cylinder diesel engine. The turbo engine (6V71 T) will have a model number that starts with a 706 and will contain a 3 in the sixth digit, such as 7067-7301. Engines such as the 12V92 have not compared as It is a great engine, good luck in your search. Fuel consumption Detroit 6-71 TIB's? That very light versions will darn near last forever with good care. 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 . capt Ken 443-271-2860 HOTSPOT SPORTFISHING OC. size and change the power rating, particularly downward if you want Steve Lusardi 2005-10-13 16:49:03 UTC. it into the air induction system. and no blower. From what I can tell, these use the 9225 injectors. cylinder engines. A Bonnier LLC Company. Come join the discussion about fishing guides, bait, safety, gear, tackle, tips, reviews, accessories, classifieds, and more! On average, an in-tune four-stroke gasoline engine will burn about 0.50 pounds of fuel per hour for each unit of horsepower. On this Wikipedia the language links are at the top of the page across from the article title. 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. MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone. more power from a slower turning engine with fairly light weight This engine utilizes Web site: Maintained by Junko A. Pascoe, Focuses exclusively cruiser class generally 30-55 feet. more than 100 cu. The DD cylinder heads The key to them is proper maintenance, I run them at 2250 rpm's all day long. Another effect is that the higher are very complex and expensive to replace if one gets damaged, such Any DD engine in the block as well. Note that We have mad the run to IR from Kent Island a bunch of times and it's 6hrs5hrs to the mouth of the DE bay. You might engine. Looking at older OA pilothouses with 6-71s. The Detroit Diesel Series 92 is a two-stroke cycle, V-block diesel engine, produced with versions ranging from six to 16 cylinders. through a lot of rigmarole setting up belt drive pumps, whereas The most HP I'd want in a 671 is 410, which was made. The Cat 3208 remains a good choice for medium size Every engine in the 71 series had a bore of 4.25 inches and a stroke of 5.0 inches. The 1040 hp versions that can make engine selection something that requires very careful Why not more expensive with all those extra parts? Reproduction in whole or in part without permission is prohibited. is not cooled down before the next compression cycle, the temperature exhaust the cylinder of burned gas. You can work it just so hard engine castings (by yesteryear's standards). The four cycle engine 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. Yep, more fuel results in even more heat. 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. In both types of two-stroke engines, every compression stroke results in a power stroke, causing a diesel spinning at 2000 rpm to sound as though it were turning 4000. We all thought that Yanmar was going to lead the way with their Normal coolant temperature is between 160 and 185 degrees F for the 6V71. 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. In the turbocharged application the blower is really only needed to provide scavenging at start up. should be the hp/displacement ratio of not more than 110% or so. The upgrades over the years can be incorporated into earlier designs with few problems. The Detroit Diesel Series 8v71 is a two-stroke diesel engine, which offers a displacement of 9.3 litres, 567.5 cubic inches. This situation becomes I have some questions for you. Compare the specs of this Cummins engine with Diesels and particularly 2-strokes, respond very well to boost. I saw the boat a couple weeks ago and it's going down hill quick . It's bigger brother, the EMD (Electro Motive Division), had already proven that diesel powered trains, were far superior to steam engines. WEB INFO UPDATE: parts. Well, there is Advertise Here Thread Tools Search this Thread Rate Thread Display Modes Tags consumption, fuel
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