You do not have to go to deep 5th before shifting into low range. There are Many 2 cycle diesel builders in the world, including Fairbanks Morse from the US who have been around since quite a while before GM Diesel or EMD originally since 1823. In 1957 V-block versions were introduced and would eventually included 6,8,12,16,24 configurations. "TT" indicates Tailored Torque and "TTA" Tailored Torque Aftercooled. Thanks for your good advice, Murph, I have a 8v71 Detroit mariner gearbox and it doesnt engages it take some time to engages i have fitted new oil pumps the back one and front one(hydrolic) At first glance the naming convention seems cryptic but is rather straight forward when you think about it. Air intake. The burned gases from the previous power stroke were then sitting on top of the swirling fresh air. Hey Everyone! any ideas as to what might bolt up to the 12v71 thanks pat. What a thrill! A 451 would be high on my want list . The Detroit Diesel series 71 is a two-stroke diesel engine that can be found in both inline and V configurations. This was excellent for the maintenance and repair of the engines, as parts were heavily available and the design of the machines was well-known by most mechanics and engineers. I love how easy it was to maintain them.A GM guy down on the Tweed in NSW has some 110,s. I also changed injectors from the C60 (8 spray holes) to the N65 Brown Tag (9 spray holes). everything else is identical. Series 900 - up to 230hp; Series 4000 - up to 450hp; Series 50 - up to 350hp; Series 60 - up to 515hp; Learn more about Detroit Diesel . but have no experience with it other than reading about it any comment? I have two 6-71TIBs in my boat and absolutely love them, the more I learn about them the more I love them. The design of the engines means that these emissions cannot be reduced or controlled. If it is the original engine, most likely it was manufactured between 1938 and early 1940 just prior to when the vessel was launched. This item is in the category "Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Complete Engines & Engine Parts". Thank you. But is still very slow to engages Im on Know Your Diesels " The Detroit Diesel Series 71 1 / 3. Generator to provide power to a off grid subdivision full of powerless cabins . Warranty . Just stripped for planned maintenance, a 6-71 ti marine gen-set after 15000hrs work @ 1500rpm (50hz) mostly under heavy load and still has honing marks inside the cylinders! It has a five-pointed star following the number and we were wondering if this signifies it as being original, rebuilt or something entirely different. Wow thats crazy i knew a guy who had a v12 71 series in a kw long nose tractor he had his turned up to 3200 rpm he told.me he used higher strenth valve springs though !I rebuilt a v8_71 for my brouther used 71 brn tag injectors set gov.to 2650 rpm it ran real decent for a detroiter but at 3_4 mpg wasant going to win any milage contests it ranfor 150 thousand miles then the damned air compressor went out sending little pieces of compressor parts into the intake tube this took out the blower sending more junk into the pistons what a piss poor way of getting air for the compressor!it was rebiult agian but not by me the owner who had purchased it from my brouther took my advice and used an old lawn tractor air filter and a seperate air tube for the compresseor!I saw that truck on the road for around four more years zfter that the guy told me he put in all new bearings pistons ect but lefht ghe settings alone! Detroit Diesel 71 series: Contact Now. Discover Detroit Diesel 71 cylinder liner 23502024 from china factories, quality Detroit Diesel 71 cylinder liner 23502024 of GX Engine Component Supply from china factories. In addition to motorcoach propulsion, both inline and V types have found extensive usage in school buses, trucks, fire apparatus, motor homes, construction[2] and industrial machinery, a few farm tractors, commercial fishing vessels, and military vehicles and equipment. 2-71s were very common for gen sets. The injectors are cycled from the same camshaft responsible for opening the exhaust valves. Can anyone tell me if there is different maker of pumps that will work for me and not cost me a arm and a leg. observe high temperature on a 8v 71 detroit diesel radiator and fan cooling, ive flush radiator but temperature is still high. Despite their unfailing ability to constantly leak oil you will still find fans of the 71 all across the globe. Inline models were famously "symmetrical", meaning that blower, exhaust, water manifold, starter, and other components could be mounted on either side of the basic block to fit a particular application. I assume you have solved your problem by now. Later on turbos were paired with aftercoolers and the power really began climbing. I love the sound. That will be the ratio 3.70, 3.90, 4.11, 4.33 etc.There are a lot of them. Ran it for approx. We have a 12V71 on an offshore gas platform in the North Sea of the UK. It is rare for Detroit series 71 engines to be used commercially; however, they can still be found in many marine applications that require large horsepower to drive their machines. In the Soviet Union / Russia, various versions of this engine-type were produced at the YaAZ automobile factory in Yaroslavl. I like the thought of the 4 cyl. Boats equipped with two engines would typically use one Left Hand and one Right Hand, so that the torque from the propellers would cancel each other out, without the need for a complex reversing gear on one side. The inline model was first introduced in 1938 and the V configuration came later in 1957. Are you thinking of changing from one head to another? and IF so, I would think youd be going from 2V to 4V and not backwards. The most popular incarnations of the series 71 engine as used for highway vehicle applications included the inline 6-71, the V-block 6V-71 (both widely used in transit buses) and the 8V-71 V-8. The engine serial number and engine model number is stamped on all inline 71 series cylinder blocks as shown below. My buddy, from high school, became a curator for a railroad museum. One day we blew an engine ( actually the twin disc clutch ), Pieces was every where. No changing cams or anything else internally! I might be able to keep this going. Boats equipped with two engines would typically use one Left Hand and one Right Hand, so that the torque from the propellers would cancel each other out, without the need for a complex reversing gear on one side. The Detroit Diesel Series 71 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel.The number 71 refers to the nominal displacement per cylinder in cubic inches, a rounding off of 70.93 cu in (1.2 L).. Inline models included one, two, three, four and six cylinders, and the V-types six, eight, 12, 16 and 24 cylinders. The number 71 refers to the nominal displacement per cylinder in cubic inches, a rounding off of 70.93cuin (1.2L). Parts Diagram Detroit Diesel 6 71 Engine Finally, a rebuild and performance guide for GM 6.2 and 6.5L diesel engines! The main reason was efficiency. Spitting out a few valve springs in the process. I need your help or that of any diesel mechanic you may happen to know. This baby runs like a champ! is the rocker cover Stamped Steel with knob style hold-down bolts through the cover.. or, is it a Cast Cover with DETROIT DIESEL in Raised letters on the angled portion of the cover between the very top & sides of the cover? Both run great but after they reach operating temp, 1 stalls out. Any idea what a 6-71-based design could be pushed to, hp wise, with modern metals, rings, bearings, etc and not worrying about emissions? This was in the mid to late 90s. I ran several ts 24 terex pans over the.years with a v12 up front and 6_71 in the rear you were sure glad to get off at quitting time! Application: 53, 71, 92. my field service book says Detroit made 568 inline 24 cylinder 71sne seen one. The Detroit 71 series is comprised of: The IL 71 (inline) with the best in class 271, 371, 471, and the 671 models. The biggest trouble was keeping the seawater cooling system clear of weed and mud which could cause overheating. In buses I preferred Cummins. So the change was never implemented. Its compactness and completeness makes this kit a valuable tool to Diesel Engine Technicians. Detroit Diesel and all of the Detroit Diesel engine models listed on this website are registered trademarks of Daimler AG. Posted on October 19, 2022 by admin. Designed to last and take a beating. I have not been there in years. We revisit that wonderful noise with a ride in a beautifully restored 1959 GMC tractor. I am not a diesel mech, but when they were done overhaul, they ran around 3900RPM, I think, during sea trials. Awesome engine!!! No greater expertise required. Performance Curve Wonderful. Inline models included one, two, three, four and six cylinders, and the V-types six, eight, 12, 16 and 24 cylinders. Damn straight best reliable ive had pleasure of owing 2 boats with 8v71 ieasy peasy to work on!! All rights reserved. They stopped making the 2 stroke Detroits in 1998 (they still make the 6V-53TI, 8V-71TA and 8V-92TA for military vehicles). The blower also assists in scavenging spent combustion gasses at the end of the power stroke. Detroit Diesel 71 Series Crankshaft Pulley. They may require some skill to get them to run perfect but this old fool can always make em run, good enough. Once in Beverly Hills, Ca I had an engine company pass me and he had a 12V71T. In other words just turn the block around. It developed a reputation for reliability, ease of maintenance, and versatility. Per Landin, What is the Detroit Diesel series 71 used for? Sorry for my Late reply to you.. just found this post. Detroit Diesel 71 Series Oil Cooler Housing Backplate. One 471 wouldnt start. Hi all. When people should go to the book stores, search launch by shop, shelf by shelf, it is really problematic. Im looking at a 1947 GMC siverside bus been setting probly 15 + years what will I be in for love them dd thanks Vic, Im looking at a 1947 GMC siverside bus been setting probly 15 + years what will I be in for love them dd 671s also have a 6v92 bus thanks Vic, I worked on a surface mine in Martin co Ky in 1974 through 1985 I think the mine worked 25or 30 unit rigs the 175 toners had 16cylinders that powered the electric turbines I always liked to hear them dumps load of rock they you could hear for miles. The only reason they will stop running is because I have safely returned to port and shut them down. But it is called Beverly HILLS for a reason. When the model number includes a suffix, it denotes additional features. Music to my ears. Typical operation. Like most Detroit Diesel two-cycle engines, the 71 Series are equipped with a blower yet still referred to as "naturally aspirated" (SAE designation). We had injector problems because of dirty fuel, so injectors was replaced frequently. He said right here. Simply put, in the above example when the transmission input shaft driven by the flywheel rotates from 12 oclock to 9 oclock the transmission output shaft makes a complete revolution 12 oclock to 12 oclock. Please feel free to correct or and any relevant information by emailing eric@dailydieseldose.com or just leave a comment below. Many 4-71 engines were used in various types of construction equipment, such as Galion highway graders. Hes a grumbly looking ugly mutt that musters up one hell of a racket anything over idle. sales@powerlinecomponents.com . If I were you, I would find a 6-110 (660ci -vs- 426ci) and build that. Any of you guys happen to know what that figure may be? Awhile later, a Guy showed up in a pickup truck. Runs great. You can go to about 450hp (with a turbocharger & 4 valve head) and still have Lots of good, dependable reliability and longevity. Bill Whitney The exhaust valves close and the piston continues up on what is now the compression stroke. It was amazing! to break it loose ( although that bar might have to be twenty feet long!?) All Series 71 engines use uniflow scavenging, in which a gear-driven Roots blower mounted to the exterior of the engine provides intake air through cored passages in the engine block and ports in the cylinder walls at slightly greater than atmospheric pressure. While in the US Navy I was in Viet Nam on lcu boats. Unfortunately someone ground off the serial and model numbers so obtaining spare parts is a bit of a challenge. It ran better. Detroit Diesel engines can drive large engines so are still used for heavy-duty marine applications today. bar the engine over (by hand) at least TWO full revolutions and then recheck them if still stuck, flip the rocker arm (or, arm and Bridge if a 4 valve head) and try Manually depressing the plunger spring on the top of the injector, IF you cannot depress the plunger of the stuck injector(s), then you can try removing the fuel jumper tubes and spraying some lubricant into the fuel Inlet and let it soak in for a few minutes and then try depressing the plunger again. Login Sign Up They climbed better. This two-stroke diesel engine initially came in 3, 4, and 6 cylinders and was named after the displacement per cylinder it produces (70.93 in 3). T. The Diesel Doctor Note: The 60 injector series was Intended for Naturally Aspirated 8V-71N engines while the 65 injector series was intended for the turbocharged 8V-71T/TA/TTA. like a year or more, and that is Thee Number One thing to ALWAYS check for when starting a 2 cycle (mechanical) Detroit for the first time after it has been sitting dormant for any good length of time ALWAYS check for a stuck injector(s). Spoke with the head of the shop and he said it was gearing not the engines. Click here for instructions on how to enable JavaScript in your browser. I cannot say for sure about the star. No they are not the same there are RH and LH camshafts. Bad fuel pump. James and we cranked the big Detroit. Im 66 now and have been on fishing boats, in California, since 6 yrs old. For example: When I was in buses we ran Detroit 426 CI 6-71Ns @ 218 HP alongside Cummins: 743 CI NH220, 855 CI NH250 and 855 CI NTC290. To reverse rotation, just unbolt everything, turn the block end for end, and bolt everything back onto the block. Detroit Diesel 71 Series Injector Tube Replacement Tool Kit J5286 J-5286. Of course, before all that you can clamp onto the fuel rack tube with vise-grips and spray some anti-rust lubricant onto the injector control arm and its teeth and try manually working the injectors until they are all working freely disconnect the linkage from the governor, first then remember to replace it when finished. lol : ). Thanks for serving Charles! These do not have a model suffix identifier: 6-71 is an inline 6. Sales of The 71 Series ceased in the summer of 1995, with the four stroke Detroit Diesel engine introduced as a replacement. Lets hope a few from the next generation learn a thing or two about them. I was visiting one day and we cranked the big Detroit in an over-the-road, Santa FE war bonnet, a-unit. The Detroit inline 6-71 engine, in all of its variations, was also available as a 'pancake engine' (here variably called either 6L-71 or 6N-71) for horizontal (underfloor) mount applications, such as on larger Crown and Gillig school buses and articulated puller transit buses (such as the Crown-Ikarus 286). If you do not know the rearend ration drop the driveshaft at the rearend so that the U-joint stays with the driveshaft. Inline models included one, two, three, four and six cylinders, and the V-types six, eight, 12, 16 and 24 cylinders. Some people argue that the roots-style intake of the Detroit Diesel engines is a form of supercharging; however, the engine was designed to be naturally aspirated. This two-stroke diesel engine initially came in 3, 4, and 6 cylinders and was named after the displacement per cylinder it produces (70.93 in 3). The Detroit Diesel Series 71 engine is a 2-stroke diesel engine. The Fire truck manufacturers really preferred the 53 series Detroit engines.. it made for an interchangeable gas/diesel application as the 53 series is a near interchange for a gasoline engine and didnt require gear ratio modifications. Belive it or not detroiters are very heavy for thier cubic inch. The engines just ran and ran. Detroit Diesel Series 71 92 Fuel Filter Housing Marine. There was an occasional V8 Cummins and one or two D343 Cats. (GOOD USED) Detroit 4-71 Diesel Engine For Sale, 4 Cylinders, 4.7L, Engine Serial# 4A-94824, Stock# 2813 WATCH TEST RUN VIDEO ON CA . Was thinking of bolting to a. Texas. Had the port rebuilt but still throwing water but not as bad as before, but bad enough to give me some concern. Stick it in 2nd or 3rd and climb. I thought he was lost and went over to talk to him. Three cheers for the 71 series May you Reign forever, Hmm looking at a 12v71 old but runs attatch to compressor. 2. We carry a large assortment of new and remanufactured parts for 71 series models including: For more information on IL 71 Series engines, please visit our Detroit Diesel documentation page. I was told by a mechanic that the same camshaft was used for either rotation; it had to be removed and turned end for end. Free shipping. Were there reliability problems with the 2 pc head gasket of the low block or was it changed due to higher cylinder pressure with turbocharging in later years? Back to Detroit Diesel Engine Information. It was just a half-dozen Phillips head screws to get the cover off. I have references identifying SN to year of production after 1960 to end of production, but not before. What that means: A direct 1:1 ratio happens when the transmission output shaft turns at the same rate, RPM, as the input shaft. Next he turboed it and got a 4 muffler off an old Pete. It will completely squander the time. There are literally dozens of different injectors but, you have to know the different types and how they affect the power band of the engine. I need to put it on a trailer for transportation. With oil fill pipe. Detroit Diesel Series 50 : Fuel-Efficient and Cost-Effective Powering Businesses Forward with Innovative Engine Technology the most important numbers and letters to me, are located at the location I pointed out to you On the BLOCK.. NOT the rocker cover. figure the total need would be for 200 cabins. Enjoy! Due to health issues I havent been able to run the boat for about a year. All the Detroit two cycle diesels had what is called a roots blower, a mechanically driven supercharger with two spiral, intermeshing, rotating lobed shafts that compress air. What exactly are you powering with this 6-71 you have? 671 Best diesel for sawmills an some trucks they will run for ever. I sniped a bunch of LCVPs, Mike6 boats, and Captains Gigs as an engineman in the U.S. Navy from 1973-1977. The later model water cooled liners had smaller rectangular covers over the air boxes. She climbed!!! A few times ( in time of need ) would be pushed to 1800 rpms. Caterpillar and all of the Caterpillar engine models listed on this website are registered trademarks of Caterpillar, Inc. Cummins and all of the Cummins engine models listed on this website are registered trademarks of Cummins. This item is in the category "Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Complete Engines & Engine Parts". which is almost twice the weight of a big block gasser. He had a screw driver, a crescent wrench, and a pair of pliers. Currently you have JavaScript disabled. The 71 indicates that each cylinder in the engine displaces 71 cubic inches, despite the configuration or the total number of cylinders. I used to rebuild and pop test the injectors as well. Hi Jim, I worked on boats with 6-71 and 4-71 engines. The piston continues upward pushing the burned gases riding on top of the swirling fresh air out the open valves. Add to Cart. The power was right around 2,500 hp and 3,000 ftlbs of torque. This is why it had a blower. Detroit Diesel 12V-71 Oil Cooler. New engine has been sitting on an engine stand for 12 years and hadnt even had oil run through it yet. Its being used as a generator and is still in use after having been originally installed out here by Phillips petroleum back in 1968. A combination not often found today. The series 71 first appeared in 1938 as the flagship engine of the Detroit Diesel Engine Division and the V-type appeared later in 1957. Allison Transmission and all of their transmissionmodels listed on this website are registered trademarks of Allison Transmission. I installed new seperator filters, secondary filters, fuel lines, bled the system and both engines fired up immediately. bogie with a slightly extended chassis and stick a 318 or 6V92T in it and a 48 inch sleeper. A mechanic at my old shop took an old army pickup with an inline 6 gasser and swapped a 350 Chevy. The 6046 Diesel was a twin engine setup used by US and British tanks and tank destroyers. During Viet Nam, I worked at a mini shipyard in Quih Nhon. Technician's Manual Series 60 EGR . Starter For Detroit Diesel series 71 Engine 16V-71 24 Voltios. Not until a turbo was added did the over pressure help rise horsepower. These models are designated for economy (Fuel Squeezer) and constant horsepower ratings. Sometimes the bosuns mates would let me drive the boat (Mike 6 or LCVPs) I got pretty good at it! but, in trying to ID the engine. As a Receiving Inspector there quality was important. Download. A turbo does the same thing but is exhaust driven thereby making It more efficient. I can't think of a better one to start with than the Detroit Diesel Series 71. Alternator Delco For Detroit Diesel Engine 16V71 -24Voltios -100 AMP BI 30SI OEM Parts #01117816. Its unmistakable sound was once everywhere, in every city and along every highway in America: the rumbling roar of the Detroit Diesel 6-71 engine. A yellow 6V-71 with a Roots Blower sat on top. this one idea allows the 71 series to be assembled 8 different setups 4 of rh rotation and 4 left hand rotation. Two 12s bolted block to block. $14.66. The seller is "enginepartscheap" and is located in this country: US. Im working on a 1974 tug boat powered by two 12v71s with blowers. 1. I hope you enjoyed my novice homage to this great and long lived engine. Detroit Diesel 71 Series Service Manual May 5th, 2018 - Welcome to the first in a series of stories relating to famous diesel engines of the past and present I cant think of a better one to start with than He said if I cant get her its a major. 15 speed! Detroit Diesel Engines, V-71 Highway Vehicle General Motors Corporation. Click Here to read and learn more about Used Detroit Diesel Diesel Engines. Every outside purchased part not made in-house had many checks to go through before acceptance.
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