Detroit Diesel 6v92 rebuild - Initial startup

[349morewatson]

I remember my days @ Universal Technical Institute. The Diesel pad and runaways. Where is the guys clipboard? This brings back great memories.

[oceanjockey1000]

Not too smart immediately running up the rpm after a cold start and fresh rebuilt. You just took some life out of that motor.

[thinkpad411]

@oceanjockey1000 If they had primed the oil system and the fact that it is being started at room temperature (20C), it's fine to rev it...

[v6200man]

My word now that is one immaculate restoration - splendid job.

Tony,

Derby, U.K..

[jetpowered1]

I love that sound!

[Mjarf88]

That engine sent shivers down my spine. :D

[jstett1]

Six in a row cummins > v6 bullshit

[DetroitDieselBob]

@jstett1 "Six in a row cummins > v6 bullshit"?????

Oh, really? Here's a 4-cylinder Detroit dragging a 1st gen Cummins, and there are plenty of other vids out there of this blue Ford dragging other diesels around. Better watch what you say on a Detroit video, bud.... somebody might just call you out on your needless hating.....

/watch?v=y_GNnrQe4Jk

[SittingMooseShaman]

...hah! Take that DeeCee!. Obama and your brainless, V8 destroying, "cash from clunker politicos" dumb-down pogrom! Defeat the 'Green Weenies': Rebuild engines!

[GingerPhilG]

@SittingMooseShaman You're right on so many levels. Just to really hack the greenies off, it's not repairing, it's RECYCLING.. i.e reusing of old components. They just love that as what's more environmentally concious than recycling? :)

[anthonyusaajr1]

They look and sound like the engines in the Armored personnel carriers in the M113's.

[Nec1228]

Now the fun part, setting the governor haha! But man, she started right up, not even one revolution before she fired. Thats crazy, great job on the rebuild!

[drums4life555]

I live 1 mile from Detroit Diesel in Detroit, MI. I think I am gonna walk up to their front gate and ask for a job. I'm in love.

[jmac5058]

@drums4life555  They dont make those anymore.

[TheSorrell345]

Beautiful, had 2 in our Coast Guard 47' MLB. Beasts! Sounds great.

[woodchuck2225]

sounds like shes runnin like a raped ape!

[davidomarine71]

sweet music!

[epistte]

Thats a cute little Rocky Mt humming bird, but the color is all wrong. The pristine white paint will be streaked grey when it starts to leak oil as all Detroit's' do.

[theASEtech]

i know how is like start for the first time a just engine repaired it feels good nice job

[busmaker]

these units were the backbbone of the powerpqcks

[jdos2]

Ah, the old "vice-grip on the rack" throttle. I see things haven't changed since the Grey Marine days (brings back memories of the GTMO boat shed)

Sounds nice!

[NesteHukka2]

Money for hobbies is not to be counted or told :-) It's ALL worth it anyway :)

[TX97SR20DET]

@NesteHukka2 Best thing I've heard all day.

[NesteHukka2]

@TX97SR20DET Thanks, It's a common Finnish saying. :)

[hallin44]

Would this fit in any road truck? if so what type of tranny should be matched with it?

[AmoralEngineer]

You won't get a 6v92 in anything 1/2- 1 ton. A 6v53 is about as big as folks are managing to stuff in them, the 92 and 71 series are just too tall. Even the 6v53 is a tough build, and 453's and 353's work much better and are easy to work on after installed.

[RichardEllisxyz]

@72fordmaverick 'Petrol' engines use gas & have a spark-plug to ignite the mixture, Diesels use 'Diesel' fuel and high mixture compression to ignite the diesel/air mixture. 'Petrol' engines can be four-stroke or two-stroke. Diesels can be both also, with some key differences. The Detroit Diesel shown here is a Two-stroke...they are magnificent engines with a history dating back to the Thirties.

[72fordmaverick]

im new to diesel anyone want to take the time to tell me the differences between a Petrol engine and a Diesel engine?and why the guy is rewin the motor with pliers on that side?

[porpoisefathom]

@davidlewismd yea- 725 hp at high rpms...cats have more power because they run at lower rpms...i.e. in order for a dd to get the full hp it must rev up to 2100 rpms.

in a boat-a tug for example- unless your using a variable pitched prop(hugely expensive), then you cannot operate well at low speeds..plus the torque on a slow turning diesel generally is much greater..

using a special prop calc I compared a dd 6-71 marine to my cat d318 marine and mine will turn a bigger prop-mine has less hp.

[customeddie71]

Fuckin beautiful man! I love detroits. Lots of experience with the 8v71 from the navy

[rboffill]

is this a 2 stroke?

[davidlewismd]

@ santapaella...about $2500 per hole. So, complete teardown, cleaning, painting, blue marine hose, stainless clamps, new cylinder kit, new blower, intercooler, and turbo = $15,000

@ marleycake...6V92 indicates 6 cylinders, V so V6, 92 (92 cubic inches per cylinder) Holds true for any Detroit ie. 4V53 (V4 with 53 ci per cylinder) 12V71 (V12 with 71 ci per cylinder...basically 2 6V71s end -to-end)

[joeymdorsey52185]

@davidlewismd did detroit ever make a split head 12v71? like the 16v71? the bow thruster on my father's supply boat is a 12v71 but it's a single 6 cylinder head on each side...

[Detroit8V92tta]

@davidlewismd 4-53 was an in line engine not vee. The 12v71 was a single block unit using two straight 6-71 heads.

[671eng]

@davidlewismd no such thing as a 4v53 all 4-53 were inline

[671eng]

@davidlewismd no such thing as a 4v53 all 4-53 were inline engines

[kennjohnsen]

@davidlewismd

15,000 dollars, is that what you charge for it, as an acceptable business. Some say, that renovating an engine today, does not pay off, it's just as good buying a new one ?

[marleycake]

is this a v8 or 6 diesel?

[baul104]

@marleycake: It's a V6 diesel engine.

[santapaella]

how much for a rebuild?

[lifter225]

These engines are used in Oshkosh airport fire trucks. In a 6x6 truck, they are around 590 hp, coupled to an Allison automatic transmission.

[RichardEllisxyz]

@lilbrudder32 Yes you could get it in a pick-up. "Box-in" the whole frame, measure the distance between the rails, drop the motor between the rails(width of rails determines you eng choice) position the eng mid mount(between your seats, the back dropping before the box. Set it as low as the pan or rails will allow.measure the total distance trans&eng, this will determine how short your driveshaft will be, try to keep the DS as straight as possible(remember load the suspension) I'm doing a 12V71.

[mccarterjg]

2 stroke,,,, 6*92*2 = 1104 each cylinder has two power strokes in two rotations vs a 4 stroke having only one power stroke per two rotations..

[AW794]

@tony565565

This is an marine application. Im sure the old buses had different injectors.

[jarl44]

Good job guys it sounds brand new'

[Bus7777]

You need to put that in an Orion I, then add an Allison Transmission and floor it!

[Sodiumreactor]

Fire it up!

[AcaAllertor127]

is this the same engine as in some crown buses?

[MisterWillie060]

yeah that thing sounds rad as a motherfucker. Nice paint too, looks really good.

[Gluneau1]

injectors can be tested three ways that i know of removed and put in inj tester which checks atomization and pressure up to 1800 psi for leak down with injecter in the engine with a new style control rack you can flood each cylinder with fuel or you can take a flathead scredriver while the engine is running put srewdriver between fuel line and injector apply force to inj. spring this will hold spring down and cut out cylinder

[Gluneau1]

hydraulic governer is the quickest response governors on these but may not be suitable for your application normally found on gensets for quick load response

[Gluneau1]

chill pickle as far as throttle response you may have a throttle delay or fuel modulator under the valve cover can be easily removed for quick throttle response wont help with fuel effiency though

[chillpickle420]

Great video: ) How can I get more power and fuel efficiency out of my 6v92? I wish I had better quicker throttle control. I think it's the air system which is slow. Is it hard to test the injectors?

[totalredneck454]

fuel efficiency and power your askin alot bud. Power is the easy part bigger injectors higher volume injestion pump bigger turbo injectors are easy to test you just need the tool

[WetDirtProductions]

Nice looking motor! Sounds awsome

[dgl1962]

Cool throttle.

[GingerPhilG]

good job on that rebuild, it sounds fantastic!

[ford427mustang]

who stole the water pump ?

[neurocytohemotoxic]

How big is the engine in terms of cubic inches and how much does it weigh?

[davidlewismd]

For displacement 6 x 92 = 552 CI.

Weigh approx 3200 lbs each.

[neurocytohemotoxic]

Thanx

[importsstillsuck]

@davidlewismd damn ...heavy sob...

[mikewarmblood]

@davidlewismd That seems heavier than a Cat C17 which weighs in about 3100 LBS.  I hear that DD engines are heavy for their size.

[Turbo617]

Very nice. I wish I could get hold of a 2-stoke that runs that well.

[jasonw1817]

No way CAT all the way

[BernardR30]

Detroit engines are the best out there..

[raidon33]

BEAUTIFUL thanks for uploading the video

[Hotrodx199]

Probably worst then that. Due to all the fuel you'd be dumping into it, it aint going to get shit for fuel mileage, and you're going to run really hot. If you want that much horsepower get a 12v71 and stick twin turbos one for each manifold. But it won't fit in a pickup.

[lilbrudder32]

You're not going to fit a 6v92 into any pickup truck. 1) It's way too heavy, 2) it's way too big, 3) the torque would twist it into a pretzel.

Marine engines use a heat exchanger system rather than a radiator, it lets then draw water in from outside the boat to cool the engine, but doesn't run that water *through* the engine.

[ThundareRed]

Some marines engines use both a radiator and outside water, like mine has a radiator in it and it draws outside water, keeps it from rusting in salt water.

[lilbrudder32]

Like I said, heat exchanger. That's what that is called. The engine runs a closed loop cooling system through the heat exchanger, where the heat is transferred to external water from the lake/river/sea/etc.

[AcaAllertor127]

@lilbrudder32 ive seen a 4-53 in a pickup truck and it was overkill.

[CustomDeluxe1984]

@lilbrudder32 you are wrong, I have pictures of one in a 55 chevy pickup. I will prove it to you

[cobra96svt570]

@lilbrudder32 True, Ive seen the inline 3's and 4's fit in pickups, and ive seen a couple 6v's, but they were the 71 series or 53' series which are lighter from what I know. Even the small inline 3's and 4's are about 2,000lbs loaded. So a 1-ton chevy with some heavy duty springs will hold it, but the ride isnt gonna be very nice.

[urbex2007]

@lilbrudder32 thanks for clering that up. I did wonder whether the water run through the engine, but understand it better now.

[RenzeZielman]

I once had my brothers Zetor running in reverse, the battery was dead and i was cranking it by PTO. I put both transmissions in reverse, so the engine rotation was still wrong.

The white smoke was coming from the air cleaner, and it didnt like the oil pump running in reverse, so it quickly stalled within seconds, before i could hop on the other tractor to shut her down... ignition and valve timing was a bit off mark, but it did make a few turns on its own...

[ricturtle]

how do you think that detroits get thev16 or v12 they take 2 8 cylinder or 6 cylinder and bolt the cranks together and the blocks together.

this is old technology

[Alisterwolf66]

Yep, they sure can - difference is in the cam timing, blower and oil pump gearing. Not much!

And yes, they do bolt 'em together for the big (92, 149 series) 12V, 16V, and so on engines. The only exception is the 12V71, which uses a single block, crank, and a pair of 6-71 heads.

[vincnet010]

That the way to get your cylinder head crack by running without cooling system. I bought the same engine from fire pump application. It ran almost 11h but they probably turn the engine without cooling system, so I got crack on the both cylinder head. That why I bought it for nothing

[smf52]

Why wasnt oil squirting out of the rockers?

[ionsunteu]

turbocharger, supercharger, or both?

[davidlewismd]

Both...single turbo into a blower then aftercooler...

[paddywagons104]

@ionsunteu THAT ENGINE USES BOTH ,

[bennekeben]

@ionsunteu Both, the blower only run on lower rpm, then the turbo takes over on higher rpm somewhere around 1200rpm ( depends on the engine build)

[DodgeRamit02]

man u wath this vid in hd and holy shit u feel like ur right near it awsome 6v92 is a bad ass 2stroker man

[Xx69roadrunnerxX]

About how much marine hp and torque are we looken at? Cruising rpm? Max operational rpm? Thanks.

[davidlewismd]

These motors are rated by Detroit at 550 hp. I am unsure of the torque but I would guess around 1,000 ft-lbs. The pair push our 36000 lb Hatteras at cruise 2000 rpm 24 knots...wide open is 2350 rpm..about 30 knots.

[Xx69roadrunnerxX]

Cool, thanks for the info! 2nd HD vid ive seen so far on youtube, thanks for that too.

[MetalTeamster]

6v92 @ 550 hp ? I drove a 1984 Peterbilt which had a 365 hp 8v92 and read the Detroit Diesel manual that came with the truck. It claimed 3 ratings for truck applications 365 / 405 / and the " 8v92tta" which was 445hp. I cannot imagine how a 6v92 would make that kind of power, or if so, not under continuous duty? Interesting. That motor in the video sounds very tight and solid, no shaky idle at all....

[davidlewismd]

Metal Man,

The marinized 6v92s make the power through the cylinder sleeves...the holes are HUGE...the pistons and injectors. More air = more power. there is a marine version of the 6v92 that is rated at 625hp...the DDEC (electronic controls). Most feel this is too much and the result is much shortened life expectancy. The marinized 8v92s are a 725 hp engine. All the turbos, blowers, etc are the same.

[fordtractors4100]

sounds like its gasping for air. lol typical detroit