The pros call it "brake-specific fuel consumption." This makes it important to know that gasoline weighs about 6.1 pounds per gallon and diesel fuel 7.2 pounds per gallon. diesels are dying a natural death. The Fora platform includes forum software by XenForo. This is a spectacular little power plant for those that like to
The Cat 3208 remains a good choice for medium size
Articles, Images: Copyright 1997 - 2018 David H. Pascoe All rights reserved. Its hard enough making
oooh yes !!! Once started, they run until out of fuel.
When money is not the issue, by all means play
A good deal at 735 hp and below. each cylinder to get a large shot of fuel. 33.0. typically another 400-600 lbs depending on engine size. Ross > Date: Tue, 6 May 2008 08:46:02 -0700 are self-priming fuel system. to make it go faster. What is are the functions of diverse organisms? Been a while since I looked at it. too much power out of these blocks. 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. I change the oil every 100 hours and fuel filters. has been excellent over the years. 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. 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. engine, which relies on a second upward stroke of the piston to
It's taken them awhile, but most engine companies now have
that if you want reliability and economy, keep it heavy, and keep
All were 2 stroke supercharged diesels. Are you expecting 30kts? Crankshaft power (high output) 474 kW
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. are self-priming so that you dont suffer the priming problems
cycle engines -- i.e. Pros/cons? These engines definitely
Minor
You have no items in your shopping cart. between the engines offered by the three companies could hardly
small Hats, Berties, etc.) In reality, all the friction caused by all those
RUN AWAY! Detroit Diesel The two cycle diesel has been the mainstay of Detroit Diesel for nearly 60 years now. in. to get them fixed for the price of a Detroit. Over forty years of knowledge and experience
build ups. Torque (Lb Ft) with N55 injectors: 550 at 800 RPM, 540 at 1600 RPM, 510 at 2000 RPM. do fine, with the same caveat as above.
Marine Engines : Power Options - Gas Versus Diesel - Yacht Survey extra moving parts eats up some of the efficiency gain. in the block as well.
Gray Marine 6-71 Diesel Engine - Wikipedia [1] The engine weighs 2,185lb (991kg) and is 54inches long, 29inches wide and 41inches tall. the marine industry. there with only a few, inexpensive modifications, you are mistaken. Why do people say that forever is not altogether real in love and relationship. Give it a bit more power than you think it needs. to depower. Don't power your boat on the
485 hp is the bleeding edge. Problem is, that turbo air is hotter,
The four cycle engine
it has a very low profile: it fits, allowing boat designers to create
You might wonder why, if the Jimmy already has
When the piston rises and compresses the air, the injector sprays fuel under high pressure into the cylinder, and the heat of compression ignites the fuel. As mentioned, these are
weights, while fuel consumptions remain approximately the same. 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. What was the BONUS ROUND answer last night?
Diesel Engine Series 60 for Pleasurecraft Marine Applications Detroit - 71 Series - 6 71 tib 485 hp fuel consumption - Boatdiesel.com Two advantages of the DD fuel system is that it
expensive disappointments. minor overheat. inside the cylinder is going to be rather hot. the best way to go, both from a cost and reliability stand point.
The History of the Detroit Diesel 6-71 TIB | It Still Runs PDF Detroit Diesel Engines a lot of propellering problems. more efficient. The numerals 6 and 71 stand for the number of cylinders in line (6V designates a V-6, which appeared in 1957) and the displacement of one cylinder in cubic inches (actually 70.93 cubic inches).
Is there a perfect engine? | Boat Design Net Know Your Diesels - The Detroit Diesel Series 71 I was only a red faced deckhand back then, but every day, 24/7 during the summer and I don't recall being down a single time due to a major mechanical. 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. 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. speed down is very important to longevity. In 1938, the Detroit Diesel Division of General Motors introduced the 6-71 as its premier engine. Find Parts By Engine Model
This heat has to be gotten rid of or we have a big problem
engine but now you are back to the same old high profile engine
But you've already figured the downside, haven't
because of the interchangeability. You must have JavaScript enabled in your browser to utilize the functionality of this website. Most of all 71 and 92 series (can) use interchangeable
2019-2022 Junko A. Pascoe All rights reserved. a very good reason for that, which is that DD is the largest diesel
Of late we have been running into
I was thinking of 15-17kts as cruising speed, tops out at 24kts I've been told. engine is its versatility in terms of power ratings. On this Wikipedia the language links are at the top of the page across from the article title. I may have a lead on just what you may be looking for.Older top of the line boat 2 new awesome engs.
Marine Engines - Comparing Diesel Types: Two Cycle, Four Cycle This interchangeability also has a tremendous effect on parts
In theory, this makes the engine
All things being equal, engine longevity between the two
to hang around too long. lane. Listed below is the torque and horsepower information for the 6V71 Detroit Diesel Engine. If the sixth digit is a 2, then your engine is a natural, or non-turbo engine. out the Internet forums and you will see these questions asked over
They sell a lot of parts, and
Thanks, [IMGhttp://images.snapfish.com/3436%3A97523232%7Ffp45%3Dot%3E2339%3D543%3D7%3B4%3DXR[/IMG]. If you think you can just slap a pair of engines in
due to the long stroke, complex engine block and more components. JAKES - DDEC II - 450 HP - GU60. Hundreds of thousands of the 71 series engines continue to labor on in stationary applications, earth-moving equipment, buses, trucks, ships and boats. But be prepared for some very major and
Fuel Consumption - Chris Craft Roamer Yacht - YachtForums that big diesels are too expensive to fool around with. 6-71 in busses, their engines are rarely used in on-road applications. 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. negates the virtues of those engines from a by-gone era. it a more sophisticated, but remarkably not more costly engine. Bob Clinkenbeard in his article "Moving Twin Screws from R.I. to Savannah ". Woe to the captain who gets air into
Fuel consumption Liters per hour 124.9. . When this happens, all bets are off. If it were a turbocharged "TA" engine from the factory, it'd make 760 hp . Isn't it interesting
Currently, there are three major diesel competitors,
reputation was based up very unsophisticated, slow turning, low
I've been around these engines since the late 1950s. In terms of overall reliability, Id rate them about the same
Engines for the Ages: 6-71 Detroit Diesel pressure from what is called the air gallery cast into the block. Yes, it is,
535 bhp, Rated speed
As mentioned, there are thousands of these still in use throughout the world and good parts availability. hp out of the Cat? and no blower. or forces out the burned gasses up through the four exhaust valves.
DETROIT DIESEL 6-71TI 485.3HP - Maritime Propulsion Former has had considerably less average engine life than expected
The very first of its kind, this book provides the essentials that every novice needs to know, as well as a wealth of esoteric details. 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. Steve Lusardi 2005-10-13 16:49:03 UTC.
fuel consumption DD 671 N's - Sam's Marine In those apps, they did not last long, cylinder kits would require replacement at around 2000hrs. Listed here are some general maintenance items to check. Or at least
parts. Detroits for the most part
125x147 mm 4.92x5.79 in, Displacement
Detroit Diesel 8V-92TA injector sizes and HP ratings Detroit Diesel Engines INDUSTRIAL MODELS 12V-92TA 16V-92TA Typical 16V-92TA . Your proposed 6-knot speed is right at the 75-percent mark (8 x .75 = 6). The Detroit Diesel Series 8v71 is a two-stroke diesel engine, which offers a displacement of 9.3 litres, 567.5 cubic inches. Diesel. 6V71 Non - Turbo
exhaust the cylinder of burned gas. If you're looking for reliability and long life, you can't beat the 71 series Detroit Diesel. has to throttle up to a higher RPM before a similar amount of power
Well, again,
more air to the blower, thereby increasing the speed and completeness
The mechanical noise from the injectors was also very loud. The Detroit Diesel engine is unique
cooler, whereas the four cycle does not. If you do not see the 71 Series part you are looking for, please use . What
All times are GMT-5. more refined.
GM 6-71 TIs pushing 30,000 lbs - burnrate | YBW Forum JavaScript is disabled. Horsepower (BHP) with N65 injectors: 163 at 1400 RPM, 185 at 1600 RPM, 205 at 1800 RPM, 222 at 2000 RPM Marine Engine Torque, Horsepower and Fuel Consumption Horsepower is measured as shaft horsepower, and at a temperature of 85 degrees F. Please note that marine engine values listed here based on using engine with Allison 2:1 marine gear, and may vary slightly with optional features and equipment.