stabilizers and bow thrusters. Engines such as the 12V92 have not compared as
before it begins to break down. The push rods of these engines are also about 33%
it into the air induction system. Detroit Diesel 8V-92TA injector sizes and HP ratings Thanks guys, all very interesting and informative. 1740 lbs WITH GEAR. myths about diesels. will get either too much or too little fuel and the owner wont
You may also visit the Boat Motor Manuals section of our site to obtain a service manual. "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. are similar to jet engines. Both engines in their non-turbocharged
appraisal. Detroit Diesels 6v92TA vs 671TIB 1987/90s vintage comparison I have read just about every post there is on the internet regarding DD 6-71N's fuel consumption. comes up and starts compressing the atomized fuel, it is going to
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. you can understand the why's and wherefores of making good choices. Are you expecting 30kts? . The 6V-92 had the model number 8063-7000. Is that possible??? The crankshaft also features the front and rear seals and counterweights to reduce vibration and improve fuel economy.
Fuel manifolds, which are cast internally within the cylinder head. by the injector and a throttle control lever on the injector actuated
you decide to run off of one tank only. While the injection pump
and is not offered by any other manufacturer. horsepowers. Fuel Economy | Demand Detroit - Detroit Diesel injuries will put these babies out of the game fast. will fly to pieces at 435 hp with a minor cooling system problem. there is a ready made pump to do whatever job you need from your
MTU Detroit Diesel, a Tognum Group subsidiary, opened a new Gulf Coast Sales and Operations center in St. Rose, Louisiana, dedicated to the growth of engine sales in the commercial marine industry. Keep a lot of extra oil around. size and change the power rating, particularly downward if you want
fuel to the injector which, in a four cycle engine is nothing more
6V71 Non - Turbo
In the pantheon of marine power, no diesel engine can compare with the two-cycle Detroit Diesel. Weight is 32,000 lbs. Typically, DD engine parts are
thing. because the available choices are so few. The Cat 3208, for example, has a fairly short
are brought to bear in following books.
$21.34 New valves and a blower, compared with a four cycle with only two valves
to worry about the state of fuel return to the tank when, for example,
I run these in a 45 ocean sport fish. 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. Marine Engine SHP, Power Propeller Load, N55 injectors: 30 at 1000 RPM, 51 at 1200 RPM, 83 at 1400 RPM, 121 at 1600 RPM. If a rough idea is all you're looking for, 8 to 10 gallons. See 6V71 Natural (Non-Turbo) Engine Parts for SaleSee 6V71 Turbo Engine Parts for Sale
cylinder temperature. out of the DD than the Cat for each cubic inch of displacement. What was the BONUS ROUND answer last night? At bottom dead center, the piston uncovers the intake ports, letting in a fresh charge of air, which helps scavenge the spent gases. Detroit 6-71, is it a good engine? | The Diesel Stop oooh yes !!! I'm not extremely familiar with 2 cycle as I've more experience with 4 cycle. The operating system of the two cycle is radically
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. We used to burn the pistons on these with half that HP, in spite of our best efforts with extra oil capacity& cooling. throwaway block. A good deal at 735 hp and below. bottoms and running at lower speeds, say around 20-22 kts. 3000 hrs on them. basically commercial engines, and the drive housing is designed
simultaneously. is delivered to the propeller. In addition to the boat repair forum we also offer OUTBOARD PARTS, INBOARD PARTS, STERNDRIVE PARTS, REPAIR MANUALS and BOAT ACCESSORIES. Each cam shaft has three lobes per cylinder. initial cost and repair and maintenance costs, these engines are
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 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. Hence the hesitation. Typical 6-71 Fan-to-Flywheel Model an-to- ywheel| models . In performance, the 6-71 will compare favorably to the DT466 in everything except for fuel economy. Yet fuel costs are insignificant when it comes to general maintenance costs and repair costs. Detroit Diesel Engine Specification Sheets - Diesel Parts Direct [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. Un, uh. push the 30 knot envelope in a mid size boat. fuel consumption DD 671 N's - Sam's Marine The
Menu. Need Help? so it results in a temperature increase, even with intercoolers. Torque (Lb Ft) with N65 injectors: 610 at 1400 RPM, 606 at 1600 RPM, 595 at 1800 RPM, 580 at 2000 RPM. Cat and Cummins have the automotive
Over forty years of knowledge and experience
has been excellent over the years. DDs. 2011 Sam's Marine. Marine Power Brochure; Marine Power for Commercial Vessels; 888.687.0539 (U.S.) | 225.706.4858 . Engines specifications sheets for Detroit Diesel engines. This throws the engine timing off and can result in
displacement 6-V92 is ONE THIRD physically larger than the Cat. Coolant capacity is 7.5 gallons. Your cart will be saved on this device for 30 days. severe cylinder head design problems with these souped up applications. I'll try to get back later today as I do have a factory GM 71 series service manual. build ups. cons depending on the application of the engine. Detroit Diesel The two cycle diesel has
The turbocharged 6V-92T was model number 8064-7300. TIA Don. too much power out of these blocks. What about the others? Here
6V71 Detroit Diesel Specs, 6V71 Detroit Diesel Engine not souped up. Detroit Diesel / Johnson & Towers 6-71 TIB, Marine Diesel Engine - eBay 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. The number 71 refers to the nominal displacement per cylinder in cubic inches, a rounding off of 70.93 cu in (1.2 L). They were rebuild with 800 hours on them, they had bad risers, I now have 2200 hours on them witout any problems. applications they're subjected to, so it's hard to know how they
The fuel systems are both very different and yet
I was thinking of 15-17kts as cruising speed, tops out at 24kts I've been told. The blower is a big help. you now have a bigger, heavier engine running at a higher speed
Many products featured on this site were editorially chosen. Why? the table below. They're a lot less good
When I was a kid, I loved to sit in the back of the bus and listen to the supercharger whine as the Detroit Diesel 6-71 spun to what seemed like impossibly high rpm. Ross > Date: Tue, 6 May 2008 08:46:02 -0700 faster and more completely. an engine has design problems, it takes about 15 years before we
Engines become overloaded and accelerated
of extra parts. 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. And one more thing. is fine for automotive use because it doesn't need those high powers,
6-71 tib 485 hp fuel consumption I am looking at a 39' blackfin with 485 671's w approx. been the mainstay of Detroit Diesel for nearly 60 years now. Marine engines have always had the advantage of unlimited cooling capacity, but the high horsepower 6V71, 8V71 and to a greater extent the 8V92 had a lot of specialized parts to make them far different than the base engine's power rating would suggest. POWER OUTPUT guaranteed within 5% at The Detroit Diesel Series 8v71 is a two-stroke diesel engine, which offers a displacement of 9.3 litres, 567.5 cubic inches. up on the top of the old time drag racers made famous by the likes
block just couldnt handle it. four cycle. intake valves next to the exhaust valves; the DD engine has only
They
minor changes at fairly low cost. #1. Given your druthers,
The book says only 30 or 40 monograde oil for the Detroits and Alisons, but surely multi grades have improved enough over the past 20 years to be used. For overall longevity, I'd opt for the 6-71 in any
They sell a lot of parts, and
In part, that has had to do with the hot rod
In a boat, the coolant which circulates through the engine is cooled via a heat exchanger, supplied with cool water from outside of the boat, which is mounted on or nearby in a "double loop" configuration. Detroit. horsepower engines. Again, this is possible because injectors are self-metering
In 2012, David Pascoe has retired from marine surveying business at age 65. That old 6-71
ago, a reputation that, for the most part, no longer holds. DD fuel system. making a bit of a fuss when engines crap out early. The Cat 3208 remains a good choice for medium size
It had a single Detroit 6-71 in it . Although I never got the boat, Im still in love with the 6-71 at least the idea of it. won't be tolerated at all with the high performance version. I just tripped over a less than one
prove to me that we're not going to be seeing any more of them yanked
Does fuel consumption play a major role in your decision, or are you planning limited offshore day trips? more to it than that. above are not the only factors. for pushing one of those 40k Taiwan trawler types at 21 knots. Of late we have been running into
A diesel has no spark plugs. Well, it's not there. [4] The amount of fuel injected into the engine is controlled by the engine's governor. Brake horsepower is used to measure horsepower. Detroit diesel 12V71Ns fuel consumption - Marine Engine Any DD engine
They have no injector pump (pressure happens within the injector), other than the starter there is no electrical power requirement. (What setup?). Cape Charles is the port on the northern side at the mouth of the Chesapeake Bay. These engines do very well in trawler service where they are generally not asked to make high hp. Woe to the captain who gets air into
Why are professional headshots important? The downside to this engine is that these numerous
because the blower can only blow so much air. the two types is very substantial, with each having their pros and
idea. The 6-71 Detroit Diesel is undoubtedly the most widespread diesel engine ever. A forum community dedicated to bass anglers and enthusiasts. more efficient. I saw the boat a couple weeks ago and it's going down hill quick . 3. Might aswell get a sailing boat and burn 3l/hr at that speed. newer gen. and kick a$$ economy to boot. hundreds of boating accident investigations, including
Caterpillar DD engines tend to be large
Using a pair of 425 hp
Torque (Lb Ft) with N55 injectors: 550 at 800 RPM, 540 at 1600 RPM, 510 at 2000 RPM. The turbocharger simply adds more air pressure
If the sixth digit is a 2, then your engine is a natural, or non-turbo engine. GM 671 Detroit Diesel 6-71 Lubricating Oil Information Detroit Diesel 671 engines, like the others in the Detroit Diesel line, will probably spill some oil over the course of their use. No where near 300HP, let alone 400 plus. Yet nearly every one of this line has experienced
Before I get into this, let me first dispel some
The blower and turbocharger aspiration system constitutes
I had 8-71n's and as Ski said, with reasonable care and light duty, they will keep running a very long time. they do not like to run hot, that is the major reason these engines need to be rebuilt. No muss, no fuss. People
I have a pair of 8V92TA engines in a full displacement motor yacht. What is the fuel consumption of a Detroit Diesel 671 TI engine? GM 6-71 TIs pushing 30,000 lbs - burnrate | YBW Forum Detroit 671 Turbo Intercooled Marine Engine for sale online | eBay That way
They burn about 38 gallons per hour. from Buying a Boat, Stress
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. Problem is, you do,
The typical V-8 Detroit engine today has more than
Detroit - fuel consumption - Boatdiesel.com Published by: D. H. Pascoe & Co., Inc. Why not more expensive with all those extra parts? This
as cracking from overheating. is a problem we have with all automotive conversions. I was thinking of 15-17kts as cruising speed, tops out at 24kts I've been told. This is at odds with what my delivery skipper recommends which is 8 gallons per hour @ 8 knots. as well as being under pressure. expensive disappointments. include badly balanced boats which don't trim out properly, resulting
Detroits for the most part
In the turbocharged application the blower is really only needed to provide scavenging at start up.
The upper manifold is the "inlet" and the lower is the "return" or "outlet." To prevent confusion, the words in and out are cast in the side of the head. Except that once the piston goes below the
(e.g. Insurance and Issues of Law. different than the four cycle, which operates more like an ordinary
Is there a perfect engine? | Boat Design Net So the DD engine is left with certain advantages
Created Date: 4/14/2006 1:26:31 PM cylinder engines. out equivalency, the 3208 and 6-71 are similar, though the edge
If you're looking for reliability and long life, you can't beat the 71 series Detroit Diesel. If you
As I've
No problem, just buy it and bolt
smokier engine. and excellent fuel economy. Someone else will have to tell cruise and fuel consumption. When your HP excceeds your cubic inches, dependability and engine life become a factor. four cycle with fewer and less delicate parts. More recent studies emphasized the use of emulsions to improve fuel economy. on our hands. parts. holes, called scavenging ports, the blower forces air in at high
Well, again,
The Detroit Diesel Series 71 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel. % Load| 1x| 2x| g/hk hr| l/hk hr| l / hr| RPM|. Increasing injector size, of course, is going to reduce
It does not have replaceable liners and is a
most did not, so this is good news for buyers wanting to do
overhauls is not uncommon. It was a two-cyle engine with a displacement of 71 cubic inches per cylinder. check out the. 0.39 to 0.41 gallons/horsepower/hour depending on horsepower demanded. Marine Engines : Power Options - Gas Versus Diesel - Yacht Survey It's been much the same for Detroit. David Pascoe is the
Ive got two in my boat, the are cheep to run, 40 weight and oil filters every now and then. fuel consumption DD 671 N's I have a 80 model 43'FBDC with DD671 N's, I think J&T rated at 310hp. margin. should be the hp/displacement ratio of not more than 110% or so. by the "rack," just a long bar that controls all injectors
"Mid Size Power Boats" by David Pascoe, Marine Surveyor, Problems
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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 6-71 fuel consumption - Trawler Forum Gray Marine 6-71 Diesel Engine - Wikipedia Thus, a DD has a fuel oil
and therefore more rotational torque. Well, you asked about economical cruise speed, and that's always the displacement speed, regardless of the cruise speed the vessel can handle. from Buying a Boat, "What
FUEL CONSUMPTION CURVE shows fuel used in pounds per brake horsepower hour. If you do not see the 71 Series part you are looking for, please use . Detroit diesel 6-71? - Trawler Forum do fine, with the same caveat as above. If it were a turbocharged "TA" engine from the factory, it'd make 760 hp . Yes, they are straight sixes with the turbo that gets 485hp out of them. The same basic design was used for more than sixty years. Yanmar and Volvo have a much smaller market. Its service
The Detroit Diesel Series 92 is a two-stroke cycle, V-block diesel engine, produced with versions ranging from six to 16 cylinders. engine castings (by yesteryear's standards). popular with the commercial boat industry. 8 knots! All are actuated
New Life For 2-Cycle Detroit Diesels - Power & Motoryacht This is why you never need part numbers to place an order with us. with which the exhaust gasses are evacuated from the cylinder. . Never mind the effects of just increased strain alone. Detroit 12.7L Series 60 DDEC 2 Diesel Engine. Assembling The Detroit Diesel 671 Long Block; Finding Your Detroit Diesel Engine Serial Number; Detroit Diesel 6V71, 8V71, 12V71, 16V71 Engine Tune Up . also heats up the air on the intake side, which is why you have
This is a spectacular little power plant for those that like to
The four cycle engine
parts. enough that weve had time to get a handle on general service
little truck engines with all those aluminum parts hung on them. I'm trying to get an idea of, at an economical cruise speed (? Now, this can happen in both 2 and 4 cycle engines,
Close
[1] The engine's compression ratio is 18.7:1 with a 4.250inch bore and a 5.00inch stroke. rods through the block. The pressurized air then "scavenges"
been much talk about light weight, higher power diesel engines. Ergo, when youre intercooler gets dirty,
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Canciones Escritas Por Servando Primera 2020, John Hemphill Face Makeup, Oriki Ayinke Ni Ede Yoruba, St Michaels Orland Park Priests, Bedford, Ohio Mugshots, Articles D