Diesel Boat Engine

[Hondaridr58]

Gatta love that sound. Reminds me of waking up at 4 in the mornin' and goin Salmon fishing in Monterey Bay.

[Bag0fRats]

@Hondaridr58 being in those engine rooms tend to kill your ears even with ear protection. The Navy still uses many old 2 strokes.

[Hondaridr58]

@Bag0fRats If that beautiful rumble is the last thing I hear, I'm ok with that.

[Bag0fRats]

@Hondaridr58 it's nice, but when you're in an enclosed area it's even louder and doesn't do your ears any favors.

[sgtcrab1]

2200 lbs of cast iron designed to turn diesel fuel into heat, noise and oil leaks! LOL

[whorayful]

Ah, 71's, the most efficient engine ever built for converting diesel fuel to noise, love em.

[RocketRodder]

I like the big engine "grinding" sound it makes. Yeah I don't know the terminoligy at all, but it's still cool.

[TheDeskJetser]

Whats the cc?

[CivSi02]

@TheDeskJetser I searched around to find a conversion calculator to convert cubic inches to cubic centimeters. What I came up with is this; 6-71 means 6 cylinders at 71 cubic inches per cylinder, multiply 71 by 6, you get 426, which is total cylinder displacement for all cylinders. On the calculator enter in the total cubic inches, and what I got was 7.0 liters discplacement, or 7000cc. Someone correct me if I'm wrong, but that seems right to me.

[TheDeskJetser]

or is it held back?

[TheDeskJetser]

410HP isnt alot for an engine of that size, here in europe an engine that big would have in exess of 900HP, especially a diesel!

[mageac]

@TheDeskJetser not a constant duty engine...

6-71s are used world wide in tracter pullers and can make massive power

[AmoralEngineer]

@mageac Not a constant duty engine? 6-71 detroits will run for decades without repair, even on the wrong type of oil (multi-weight) without any complaint. They are 100% constant duty engines, i have never seen a tractor puller with a 6-71..... Many other detroits on tractor pullers I have seen, but at 2800 pounds or so there are much better options for power... A 6-71 at stock horsepower will run for half a decade without trouble, not a tractor pull engine nor have i heard of it in such

[mageac]

@AmoralEngineer

perhaps you should read the comment i was replying to?

[teslapower220]

Now why is it pouring water out of its exhaust?

[angelkak83]

@teslapower220

It's a Marine Engine which uses seawater as coolant instead of air.

[LIP15]

@angelkak83

No engine uses air for cooling apart from very old VW's and motorbike engines. Almost all engines are cooled with water/coolant. It's just they reuse the same coolant/water with a radiator, where as a boat is constantly picking up fresh water. the water joins the exhaust awayfrom the manifold

[dustyflair]

@angelkak83 actually the seawater never enters the system. A heat exchanger is used. Coolant is contain within the motor and the heat exchanger. Seawater enters the heat exchanger and cools the coolant and then the warmed seawater is released thru the exhaust. You would NEVER want saltwater inside you engine or any parts of the motor.

[kennjohnsen]

@dustyflair

But some engine do have saltwater cooling.

[roadwolf2]

@teslapower220 they also use water to cool the exhaust so that it dosnt cause excessive contamination

[BlakeMason2]

They must have made buses with these too.

[CivSi02]

@BlakeMason2 you'll find a lot of older buses with the 2-stroke Detroits

[CivSi02]

OK....I'm not a newb or anything. But please correct me if I'm wrong, BUT, isn't the knocking noise at the beginning because of insufficient oil flow at initial startup? It's normal for most diesels since they use a heavier weight oil anyway, right? And I hear it a lot during cold mornings because the oil is like molasses then. I know it's not a "rod knock" though. Help me here lol

[rocco40]

@CivSi02 - The knocking you hear is from the injectors, not a rod. This happens if the injectors are wearing out, or if it is extremely cold. Seeing that they are wearing shorts and t-shirts, I would say his injectors are starting to wear out.

[CivSi02]

Cool deal, I know engine knocks, but wasn't sure if it was because of inadequate lubrication on startup, such as after an overhal perhaps? Makes sense too, because it's pretty much a "ping" from the air/fuel mixture being too lean from lack of fuel correct?

[rocco40]

no.... from having worn out injectors.

[jlipsky14]

amazing sound!

i have 8v92's in my boat and there is no other sound like it!

i listen to this vid like 10 times a day lol

[jimicolors]

Sound good.... Thanks

[bosser231]

awesome

[Nuclearrc]

Yep you can definitely tell she's a Detroit Just by the sound. I work the great lakes as a commercial fisherman and some of the tugs in the fleet have got Detroit's in them you can hear them coming for miles! LOL! The boat I work on though's got a Volvo Penta D-12 in her rated at 432HP They're a little louder then the Detroit's but still a good engine! Great Vid. Diesel Rules!

[deathfactor050]

lmfao, put that in a pickup truck.

[potion616]

nice sound!!

[wave982]

looks like some un-burnt fuel, is that a 6-71

[tylergeipel]

BEAST!!! NICEEE

[luapluap02]

is this a 6.5L? if it is you should turbo charge it :D then it would sound even more beautiful

[SpiritsoftheWolf]

ummm there already a turbo on it, look at the top of the exhaust hump before it reaches the end, with turbo or not..... it's the beast

[luapluap02]

:P cant belive i didn't see that lol, ow yes it is a beast no matter what

[GeniusCreator811]

its got good compression

[L324RT12]

They are called "water manifolds".....

[wilzchau]

Produced by General Motors?

[GuzziScott]

yepa thats a fack jack

[urbex2007]

MORE MORE MORE - that's a great engine. do a longer video!

[dumapies]

i seen alot of different engines in my life..but why is there water coming out of the exhaust?

[murph734]

because marine engines dont have closed cooling system, they just take water directly from the ocean or bay and run it through the engine, and it leaves through the exhaust

[mageac]

its only needed if they want to run the exhaust out the rear of the boat, if its ran straight up they dont need the water... also the wet exhaust sounds horrible when idling...

[Sephy69]

i ts losing more water than its burning fuel....wtf??

[JGMagoo]

Many marine engines utilize what they call "wet stacks". That is where the cooling water which is taken from the lake (ocean?) is dumped into the exhaust pipe after the exhaust ports to keep the pipe cool. This also tends to quiet the exhaust somewhat as opposed to a 'dry stack'.

[Sephy69]

aaaah you learn something new every day. thanks :-P

[urbex2007]

That's brilliant, I never knew about the wet exhausts.

[JGMagoo]

Thanks. And the reason it's not nescessary on a car or truck is that there is enough of air circulation around the engine and exhaust system, as opposed to a boat where the engine and exhaust system is usually enclosed below deck, so the heat must be controlled and the resulting fire danger reduced.

[angamoos]

Is it just me or are most detroit diesels 2 stroke?

[JGMagoo]

They have produced both.

All of the Detroit Diesels in the early years were 2-stroke. There have been some smaller V-8 diesels produced by Detroit since about 1980 that were 4-strokes. (6.1 & 8.2 'Fuel Pinchers') And the newest big Detroit Diesel, the Series-60 introduced in 1987, is a 4-stroke.

[Vette31991]

do you have any more video of this engine in your boat? I would like to see it run in the boat or just run again! Thanks!

[ProductionDesignrMAX]

"This is the only reason I need to make sure tha... (more)

Added: July 14, 2006

This is the only reason I need to make sure that my next boat will have diesels. 671TI Detroit Diesel, about 410HP and enough torque to move large buildings."

OR THE 300 REASONS YOUR NEXT BOAT SHOULD BE A SAILBOAT...

[micismyname]

just build your sail boat around this 671 reson #1 ican watch this over and over

[ProductionDesignrMAX]

Try Youtubing HYDROPETRE if you want to see something REALLY amazing for the water.

[jimbodepot]

wow you could here that rod knock from a mile away when he first fired it up damn

[farmboy120]

its not a rod knock.

[GeniusCreator811]

its just the sound of a diesel

[8vmafia]

This engine is a marine detroit diesel. It has 6 cylinders, inline with a displacement of 71 cubic inches each, and is a 2 stroke. This (particular) engine has both a supercharger and a turbocharger.

[lilbrudder32]

6-71 has a blower - which is used as a supercharger on other engines- but does not provide boost pressure on a 2-stroke diesel. That's what the turbo does with this engine, is create a boost pressure greater than ambient air pressure.

[seagravefan]

Plus it also says 6-71 under the tags.

[02uawitt]

its an inline 6, pause it at 38 seconds and you can see the inlet manifold branch off to 6 ports.

[wattseyboy]

amazing engine the sound of a true diesel

[dadan999]

V8 OR INLINE 6

[SGLacker]

Detroit and EMD engines are named according to number of cylinders, configuration (no letter if inline, "V" if v) and the displacement per cyl. So a 6-71 is an inline 6, 71 cubic inches per cyl. A 8-V-71 is a V8, 71 cubic inches per cylinder. An EMD 20-V-710 is a 20 cylinder V-type, 710 cubic engines per cylinder (used in locomotives and ships).

[LeonidK340]

Fucking noobs,,,why u ask is it WATER or FUEL...???

UP SAYS DIESEL BOAT ENGINE...Boat DIESE is different from the normal diesel engine,,,because requires WATER for be COOLED =)

[8vmafia]

You imbecile, The exhaust is quieted by water. There are no mufflers on this engine. All large diesels are cooled by water. In this case the cooling water is ejected out of the exhaust instead of being recirculated through a radiator.

[mageac]

marine diesels just have thier exhaust cooled by water so that it can have an underfloor exhaust. it still has a closed loop system, instead of a rad they have pipes in a loop on the outside of the hull to cool the coolant

[BunEButler]

yikes

[dadan999]

This is a V8? Or a inline-6?

[CivSi02]

Inline 6....if the engine was a 6V71 then it'd be a V-type. But it's a 6-71, meaning it's an inline configuration. 6 meaning number of cylinders, and 71 meaning cubic inch displacement of each cylinder

[GeniusCreator811]

why does the water come out?

[GeniusCreator811]

water

[dragonchild25]

is that fuel or water ?

[GeniusCreator811]

is that detroit or caterpillar?

[Boeing227]

Detroit

[farmboy120]

can you read?

[savertype]

sweet

[superguitar008]

got two of those in our boat

[angamoos]

nice love the sound of that engine

[BlkSerialKilla]

Dreeeewwllllllllll

[ryan29073]

Vice Grip throttles are common place for old Detroit Diesel engines! :)

[douro20]

410 horsepower? I didn't think 6-71s put out quite that much horsepower.

[dcgregal]

This marinized turbo does. NA figure 300HP.

[boatrunner82]

I know, I'm a marine engine mechanic. I love that sound though. nice video

[sortashaman]

From the old Detroit Diesel site, they were getting up to 485 BHP out of these, in the "6-71TIB" (Turbo-Intercooled-Bypass) config., approx. 3X the original 1938 vintage ones. I think production of the 2-stroke (for marine use, at least) stopped in Sept. 1999, tho parts are to be available thru 2049! V. nice sound on this particular engine, BTW.

[boatrunner82]

it's a little old as engine!

What about new CATERPILLAR HEUI engines?

I think those are much better

I'd like to see more videos about that, Anyone now where can I find some?

thanks guys

[TomH127]

The Jet Express III High Speed passenger ferry servicing Port Clinton to Put In Bay (western Lake Erie) has 2 CAT 3412E diesels as propulsion power 1100 HP each. No black smoke on throttle up. Check my video Jet Express Departing Put In Bay.

[Sulazoh]

671 stands for 6 cylander 71 ceries. liquid coming out is water for cooling he engine... they just used that hose you see on the ground for the water intake so it wouldn't over-heat. A 671 COULD run on gasoline... but i wouldnt do it. eats out seals, and messes up your velves, and you would have to change the velve timing and timing on the injector rack alittle... sounds awsome, love those engines ^^

[ztwntyn8]

paint thinner.. I have started gasoline car engines on paint thinner by priming the carb and couldn't tell the difference in thinner or gasoline.

[orion855]

What's with the liquid coming out the exhaust? Is that fuel??? And is that engine a V8 or an inline 6?

[seagravefan]

It's a Detroit 6-71T. An inline 6, 71 cubic inches per cylinder, turbocharged.

[wyzat520]

Thats got enought torque to the titanic!

[chevy668]

That is one nasty engine I want in my boat. I'd just run it out of the water of half-hour first to get my day of music full-filled.

[theprodigy01uk]

omfg that engine is the dogs, i want one to just rev up all night and piss next door off.. awsome!!!

[ENYoriginal]

Stick an engine on a bus....easily.

Shit man, people told me that Fishbowl New Looks and Old Looks had 12v71s, but rarely ran due to the fact that it took a few round trips before it was to be pulled due to an empty gas tank.

[roadwolf2]

diesels will not run on gasoline as gas is to volatile but they will run on a mix of propane or CNG with modifications and biodiesel

[lordtaw]

They can and will run on gas. Problem the gas will eat all the seals up in a normal engine. Plus it wont be as efficient as diesel has 10-15% more energy per volume then gas. Ever hear of the old multi fuel diesel engines used in the older military trucks? They ran on anything you could put in them, diesel, gas and jet fuel, even rumours of paint thinner working too.

[seagravefan]

I remember my Godfather back in the old neighborhood had an IHC Road Grader that had a gas-diesel engine. You would start it up on gas, then after a few minutes, you would throw a knife switch to change over to diesel. I've never seen anything else like it.

[mrspivvy]

That sounds like a petrol/tvo engine. it used to be common in the uk for farm tractors to run this way, start on petrol then switch to tractor vaporising oil which was a mixture of heating oil, parrafin and petrol and much cheaper. the low compression of the tractor engine meant that once it was running it could tolerate such a low grade of fuel

[DHMwithT]

Ahh, memories!!! When I was a volunteer fireman some 20 years ago, we had a Seagrave 100' rear-mount ladder truck that had an engine like this one, turbo and all, and that's exactly what it sounded like when you would first start her up.

[rompn4x]

Im gonna find a way to put that in my dodge haha

[Nicks04CadillacXLR]

Anything would fix up a dodge....

[Nicks04CadillacXLR]

Oh my god that sounds good....do you want to sell it?

[mrspivvy]

does sound good, for a while we had the 8v-71 in the uk fitted to bedford TMs. appalling fuel consumption killed them off very quickly, most people ticked the "cummins" box instead

[jaggass]

when did fit the 8v71 engine in the TM's? i dont remember that

[mrspivvy]

8v71s fitted to TMs mid to late 70s. 5-6mpg was not acceptable in the UK and lack of low end power made them unpopular. Tms could be had with bedford 500 turbo or cummins L10 engines. scammell crusaders in the uk could also be had with detroits

[ENYoriginal]

Tell me, when was the Cummins L10/L10G first introduced?

Cuz once I saw an Autocar 10-wheeler truck from maybe the 1970s revving all out one time....and it had the whizz of a Cummins engine.

[ClassicTVFan82]

To the best that I can put it: Cummins introduced the L10 diesel engine in 1983 and the L10G NGV version in 1988.

[B422TMack]

nothing like the sound of a 238 Detroit esp in a truck they drip oil but ive always had good luck outta of the 2 stroke jimmy's just keep check on the oil if he dripping your alright ;)

[B422TMack]

oh & the sound of that 238 makes me miss my 74' gmc 9500 i had w/ the 238 & 5&2 tranyy & belly blower exhaust

[Auscrawlrule]

I love Detroit's. They're evil things. There's nothin like travelling through a small town in country Australia at 2.00 o'clock in the morning then gettin on the jake. Then you can watch all the lights come on in the houses. Ha! Ha! Haaaaaaaaa!

It aint worth havin if it aint a jimmy.

[VeeDubTDI2]

Great video! Nothing beats the sound of a Detroit two-stroke. Thanks for posting... wish the video was longer though. :)

[trainman071]

detroits may be fuel eaters,oil burners. there is nothing like a old 12v92. NOTHING WILL EVER BEAT A DETROIT!!!! NOTHING!! BEST DAMN ENGINE I EVER USED.

[mrspivvy]

SOUNDS AMAZING!!

[jamzie89]

well, its a marine engine so it uses sea water or lake water to cool the engine then the water is mixed into the exhaust ( you can see the pipe going into the exhaust) to keep the exhaust pipes cool and to quiten it abit

[PedroAlexandreLopes]

I'm sorry i don't know well these motors, but why do it comes out WATER frm the EXAUST?

[kusanagisama]

Well, one good thing about diesels is that you can run them on just about anything except gasoline. You could easily run that on waste vegatable oil from restaurants after its been filtered. You could run them on JP8 (jet fuel, since it is modified kerosene). I do believe the military runs their support equipment on flightlines on JP8.

[lordtaw]

They will run on gas but the seals in the fuel system will break down. If they were replaced with gas resistant seals then it would be happy running on gasoline too :-)

[Sulazoh]

ah yes, the sound of a screamin jimmy... m.. wish i was back on the tugboats... they do eat the fuel though...reliable engines if thier treated right ;)

[Barnekkid]

I hope you own an oil well too because jimmys are fuel hogs.

[luisitolindo]

uuuufff.. brilliant the sound of the detroit diesel dont have comparation. great and powerfull motor. the best in the way

[Dino679]

WISH I could smell it ;)

[TechMaven]

I love the sound of a 2 cycle Detroit. Nice clip.

[Drivenout]

:o Love.