I've been a diesel mechanic 20 yrs now. you did great kid! stand back and watch it blow. you never know when its gona spit rods out at ya. stay safe built another and keep on truckin..
Finally a sensible person! Everyone else just think popping the clutch will stop it.. Idiots have no idea the power going through it. I've been driving big rigs for 15 years now and in the beginning of my career this happened to my old Volvo truck. I just backed the fuck off and hid behind a tree. Some guy nearby jumped in the truck thinking he could be the hero, put the thing in 5th gear and slammed the clutch. Ripped the entire clutch, driveshaft and parts of the engine to shreds. Never seen rods and random metal shrapnel fly that far. The hood had like 5-6 holes in it, my gearbox was gone, everything just fucked. Would have been easier to just the let the engine run it's course.
Viking88 Finally, someone with first hand experience to debunk this 'dump the clutch' bull shit! Remember people, you've already lost the engine, don't fuck every thing else too!
deezelfairy Absolutely, had I or anyone else been standing near the truck when it blew to bits bad things would have happened. And not only did I have to buy a new engine. I also had to rebuild the entire drive train. Plus parts of the bodywork, brake system, left fuel tank and hydraulics. I mean instead of just blowing the engine, the fucktard caused so much damage I might as well have bought a new truck.. The recovery crew said they found rods and parts of the truck over 100 meters /yards away.
Viking88 I work as a forklift engineer in the uk but pretty much fix any piece of equipment that comes my way, a few years ago one of my customers had a big old generator (about 200kva) they wanted to get running, we brought it back to the workshop, my old foreman (best mentor I've ever had) got it started and it instantly ran away, no time to do anything, all over in a minute, one rod let go punched through both sides of the block, oil filter housing 50 feet away, the big inline bosch injection pump torn off and embedded in the cinder block wall 15 feet away like a dart, shrapnel every where! It was a miracle no one was hurt/killed. It's serious stuff, no opening bonnets, just get away! It might just seize but if it grenades and your over it/along side it, god help you!
deezelfairy It is indeed terrifying. I worked 12 months on the S.S Heimdal up in the bearing sea and around the Norwegian coast (the ship is an ice breaker, about 320 ft/98m long) and the gigantic diesel engines in that thing scared the crap out of me, now I'm absolutely no diesel mechanic so I'm not sure one of those engines can even run away but hell they are the size of a small house.. And the ship had 4 of them! Four 16-cylinder monster diesel engines pumping out close to 15 000 kw. What's that like 20 000 hp or something.. I loved working on that ship but standing shoulder to shoulder with those behemoths, feeling that rumble I could only imagine the chaos if one ran away.
Anyone who thinks that putting the truck in a high gear and dumping the clutch is a good idea is wrong. How many of you have seen a big engine or transmission explode? I have. My friend tried to stop a C-15 cat in a peter that was running away by putting the trans in high gear and letting go of the clutch. The trans exploded and the flywheel and/or clutch decapitated his right foot just below the knee. I was there and had to drive him to the hospital personally. When a diesel engine goes rogue, let it blow. Only a fool gets close to that raging beast. The truck/engine can be replaced (that's what insurance is for) your life cannot.
It is good idea when you do it enough early. trucker should know when something unnormal is happening in truck, so enough early then is good idea. Second i think, clutch is firs what explodes.
alex pencek lol a rag? the intake would suck that through in half a second...you need something a lot bigger and stronger than that maybe a block of wood or steel
All diesel equipment in the oilfield here in Canada is required to have positive air shut off installed to prevent this. Definitely worth getting installed, small cost to save a big expense.
@@matthewfrost3677 ic thanks so its a butterfly valve that closes in the air intake. I didn't understand the positive part I guess I would just called it an air intake shut off valve
+Steve Sai My rear axles cammed over on a 3 car hauler with 1 truck on it. Lucky i got it slowed down to make the T intersection. Good thing no one was coming. call owner. He wanted me to pick up my next 2 cars and bring it back 300 miles with only front brakes lol. i told him the truck didnt move until it had new brakes on it. had to send service out to replace them on the pull off.
In the first few seconds of the engine goin fill redline you are safe to try to stop it. Rip the air box open, throw a fire extinguisher or a towel in it, & that’ll slow it down. I’ve had to shut down a run away dsl before, & it’s scary af. But after the first 1-2min of redline it’s not safe to get close to it. If you know what ur doin u could’ve saved it.
I'm not sure if you watch this video but from where I sit there was no pieces of shrapnel that potentially could have killed someone what exactly is everybody freaking out about the engine seized. So it's slow down it didn't speed up as it lost oil because it consumed it into the cylinder a simple fire extinguisher end of the turbo what if kill the engine and saved it and all you would have needed to replace was a turbo
The first 20 seconds should’ve gotten out and ripped the air box off and cut the air off to the engine plain and simple then he could’ve saved the engine. Steering wheel holder needs to learn how trucks work.
I got to see a 24v Cummins run away yesterday. The idle picked up a little bit, turbo started to spool, then it just revved up out of control. 6000-8000 RPM. It happened so fast, 5 seconds, tops. The valvetrain sang like an E46 BMW, then it locked up. It sent oil out the exhaust for 40 feet. Shop got completely smoked out. You could smell the burnt oil for 8 blocks. The shop owner looked at his apprentice (5th day on the job) and said, "The worst thing that can possibly happen, just happened. This is as bad is it gets. Let's sit here for a bit and make sure it doesn't catch fire. Maybe we can find a barrel to burn all of the oily rags we're about to make."
Who took the seals out of it before running it? I know for a fact from experience that a 24v Cummins won’t just run away. They are the most reliable diesel engines you can get. Not trying to be rude but this sounds like complete bullshit. You wouldn’t smell the oil for 8 blocks. It was probably a Powerstroke or a Duramax.
@@CodyMechanix You're right. We've been thinking about that and came to a similar conclusion. The vehicle owner trashed the original engine by running it low on oil. So, the shop owner procured a different engine and installed it, only to have it run away as described. We're not really sure why this happened. He did not replace the intercooler. For a while, the shop owner suspected that the intercooler was contaminated with oil and caused the new engine to run away, but the engine ran until it was up to temperature, albeit smokey. The amount of oil it discharged was incredible, far more than what would physically fit in the intercooler, hence why we also believe the turbo was sabotaged.
@@CodyMechanix That was a heck of an experience. The rear quarter was covered in oil. More oil was spewed out the exhaust for about 2 car lengths. It was all over the side of the shop. Both bays were smoked out so bad, you couldn't see. It happened so fast. That was the fastest runaway I've ever seen. I got on UA-cam and looked at runaways for about an hour. I swear, it made the BMW inline-6 sound too. That tin-like buzzing sound. We had seen runaways happen before, but never that fast. The idle was hanging high for a good 12 seconds. Once the turbo spooled, it was over in 5-7 seconds. We didn't stand a chance.
@@dontbetreadin4777 I do have to agree, I typed this comment years ago and had forgotten about it. I'm honestly surprised people still reply to such old comments. This has happened from time to time as I find old comments and even I can't understand.
Some Diesels do have it. The barge I used to work on had 2 twin turbo Detroit diesel v8 engines and there is a solid rubber flap on the inside of the intake manifold so if an event like this happens, you pull a lever and the flap closes and restricts the air from entering the engine..
Most of the marine diesels I've seen have this emergency shutdown and back in the day the old folks say they would keep heavy blankets in the engine room to throw over the intake/engine to smother it
Good to know that the company values employees wellbeing over property. Would have to be completely psychotic for the supervisor to order the driver to get near truck to shut it down. Even if that were possible. Glad the driver had his priorities straight! Cool video, Thanks!
@@billtmarchi4320 ur full of shit my guy there is no way to shut a runaway unless u went under the hood or to intake and choked it with a shirt or with a co2 fire extinguisher . So good try there but ur wrong and the engine is not worth risking ur life to save unless u have the right tools and even then sketchy. So that would have been a dumb employee not a smart one.
@@billtmarchi4320 how do you suggest he do that? Sure he could dump it in a high gear and risk blowing the gearbox sky high and getting bits of transmission through his body … or he could open the hood and shove something in the intake, risking getting piston 7 to the face He made the right call. The engine can be replaced, he cannot be replaced.
@@ALittleBitOfGay try educating yourself you idiot and listen to what he says. Then go F yourself. We have dealt with runaway engines before. Any person with some intelligence could figure it out. I didn't see a rod fly or engine explode, did you??? Stalling would be easy. Shoving a rag or an extinguisher into the intake is easy also. I bet you don't even know how to wipe your ass yet. Or are you afraid your ass will explode or burst into flames .?? You idiot
his boss on the phone sounded like he didnt have insurance on the truck or something. He was all worried about the cost of getting a new engine. The hell with your safety, just save my truck. Lol.
you a clueless person who seems to have no perspective. Educate yourself before you send your wisdom out in the world for ever. Virtue signaling donks are a dime a dozen.
@@TheRoadhammer379 Maybe the original poster meant to say warranty instead of insurance, people make mistakes all the time when writing comments. No need to be nasty about it.
I love all the people saying "oh just go and try to clog the intake." I'm not gonna risk my life for bossmans truck..... I am not even gonna risk my life for my own truck.
In the Navy we used a diesel powered mobile generator, the NC-8. The unit had an emergency shut off handle. It simply cut off air to the engine. Surprised big rigs do not have something similar.
@@AsianNIGMA That seems to be what a lot of people are debating on here. You just don't know, and don't want to be close on the off chance it doesnt just seize.
Exact same thing happened to me the other day. You did the right thing by bailing out and running. It's not worth it to have a rod come through the block and kill you or have a turbo explode in your face. Let the engine die. It already had a serious problem and would have been damaged more as soon as it started to rev. And would you really trust it again after that. Engines can be replaced. People can't.
This just happened to me on my peterbilt last Friday. Had the engine overhauled 5 months ago. Engine is a total loss. I’m glad it was under warranty. This was the scariest thing I have ever experienced in my 40 years of trucking. You can’t do anything but stand back and watch.
@Dakota Duree : ok, the truck got plugged in to see how fast the engine was spinning, The computer said it was turning 6100 rpms. If you are stupid enough to stand anywhere near that engine cranking that hard be my guest. When these things take off like that you don’t have time to block the intake. Also what do you block it with??? Ive got twin vortex air cleaners on it. How do you block those???
no. You can do something instead of letting it destroy itself. You can use a fire extinguisher and blast it into the intake. Without oxygen it can't run. Also you could put it in the highest gear and slowly release the clutch. A burnt clutch is better than a destroyed engine. Also don't dump it because you might destroy the tranny.
@@dieselgeezer18 : you’re fucking ignorant. The truck was set up to put and was dynoed at 605 hp and 2050 torque to the ground. Put the fucker in high gear and “ slowly let the clutch out “ is a guaranteed clutch failure, probably a transmission coming through the floor. As far as a fire extinguisher, all that does is plug up the filter element, I have 2 vortex filters. Ya know the big shiny cans on both sides of the truck cab. Maybe it will happen to you and let’s see what you do. What a dumb ass. Put it in gear.
For those saying that you can shove a shirt in the intake to shut it off, you might want to consider how large a motor the big trucks have. The shirt truck might work for a small car engine but with this big of an engine running wide open, the turbo would shred the shirt to pieces and send it out the exhaust.
The turbo isn't a vacuum, 😂. We've stopped a runaway Detroit in a freightliner with a wooden clipboard over the air filter inlet. The engine is big but the turbo isn't a giant aircraft turbine, 😂. Experts...smfh
I'm surprised there wasn't a violent explosion like rods coming through the hood or even a piston or something. The less mess the better. Glad you stayed away from it
Listening to this driver on the phone with his boss (I'm assuming) reminds me of talking with my former supervisor whenever I had a safety concern. Supervisor- "Are you sure you can't just do 'x' ?" Which translates to "I'm not going to tell you to do this dumb, dangerous, and/or different thing...but I'll throw it out there...and if you want to do it (and possibly fix it so you can get on down the road and keep making me money)...I won't stop you."
They need to have a emergency compression release switch for it so i case it takes off like a jet you can push the switch and release the compression which kills the engine
It took awhile, but some one finally said it was sucking the lube oil from the crankcase into the cylinders. Clearly you know your engines! No stopping that one safely, let it blow.
@@user2C47 maybe? though I think a runaway would be going fast enough to still keep going, the jakes only take so much compression away, but also at those kinds of RPM it would for sure cause other damage, bent push rods broken rocker arms bent valves etc, which could stop the engine too, if they even engage... lots of ifs, best and really safest thing is to starve it of air by blocking the intake somehow, which I admit is scary as F cause you will likely need to pull the intake boot and find something to cover the turbo... before it throws a rod Though unlike what most of the keyboard commandos on here are claiming thrown rods and exploding transmissions don't create all that much carnage, the firewall/floor boards will stop it or the flimsy popcan aluminum hood will stop a thrown rod.. most of the force is taken up by the case. though if you are very unlucky... you could catch a thrown rod or worse a head could blow off, but its unlikely.
Jonny2k100 gave a good description. Sometimes diesel engines suffer from runaway effect, for example when engine oil mixes with air trough broken seal in turbo. As diesel ignites fuel using high compression it's speed is governed by amount of fuel added, there is no throttle body, spark plugs, etc, nothing to "switch off" to stop it. Motor oil bypasses fuel system and gets directly to the engine it makes it run without any diesel added. More engine speed = more oil pressure.
To those people who are suggesting dumping the clutch..... you might end up dying doing that. Dumping the clutch on a bigass runaway truck diesel might grenade your clutch/flywheel/transmission and send metal flying fast as fuck everywhere... socgood luck with that.
Lol people are actually suggesting to attempt to put a runaway in gear?? Holy hell that’s dumb. Those things go from about 500-600HP then runaway to somewhere in the neighborhood of 2,500-6,000HP. Those engines cannot be stopped without cutting off the air. Lol We had one let go on our dyno a week or two ago and had to steel-plate the intake. Saved the engine and the dyno luckily.
Either cut off the air or dump a CO2 fire extinguisher right down the turbo (assuming it has one, not all diesels have turbos). Thats what you actually have to do. If you're gonna cut off the air, do it with something solid if you can. And DO NOT. I REPEAT: DO NOT put that thing into gear because second ya do it's gonna spin the transmission too fast and it'll blow up. See another comment. A guy did that and his right foot was decapitated. And if its been going for more than 20 or 30 seconds, don't try to save it cause chances are its gonna throw something out the block somewhere and you don't know where or when its gonna be. If its gonna blow, best to leave that raging beast be.
@@rickwilson5611 Kinda but not really. A runaway can produce abt 10x the average power of the engine. The HP and Torque may slow after a point but itll still be hella power.
a last year my friend had a brand new new holland combine with only 1150 hours on it, he was pulling up to a stop sign and started to idle it down and right when he idled it down, the seals in the turbo failed, BUT, their was so much oil being sucked into the cylinders that it with in seconds of it starting to blow a bunch of smoke , there was so much oil in the cylinders that it hydro-locked the pistons before it could seize up
About 20 years ago, I was following a dump truck up a mountain at 55 mph, when, over a distance of a half a mile, the exhaust out of both stacks went blacker and blacker, and he pulled over. As soon as he pushed the clutch in, it revved crazy high. He put it back in the highest gear he had and dumped the clutch. I stayed with him until help arrived and had quite a conversation with him. He said he knew he had a problem when no matter how much throttle he gave it, power output kept going down. Turned out the intake side turbo seal failed, dumping crankcase oil in the intake. If you have uncontrolled fuel ( crankcase oil) in the intake it will rev like crazy but not produce any power because it's running too rich. He did save the engine, but enough oil got into one cylinder that it hydro locked. Fortunately, the engine had only 5k miles on it and was still under warranty.
Something so interesting about hearing those rpms come down with a dying engine like this, its amazing how it can take it to the very last bit until resistance is too much then just silence lol
I guessing it's caused by the engine burning all the sump oil and the internals overheating and expanding until the clearances hit 0 and then it seizes and stops. Probably totally wrong but that's what I picture happening.
I'm a retired long distance truck driver. I personally never had one run away on me but have seen it happen a few times in my 25 years on the road.. It doesn't happen much now with the new computer controled engine.
Fun fact: a runaway diesel can produce up to 4x its rated hp during a full blown runaway event. Thats why its just best to get the heck out of there. Its a ticking time bomb.
Years ago, our fire department received its first engine with a top mounted diesel generator. No problem for a couple of years. One evening, we responded to a car accident, really no big deal....We extended the floodlights, and lit the roadway. As we were extricating the patient, our generator ran away. The floodlights got as bright as the sun, you couldn't hear each other talk, and the blackest exhaust.....We have never seen this before. My driver could not shut the generator down, the medics hustled the patient out of the way. I called for another engine company to put OUR fire out. 911 could not grasp what was happening, until I told them that we are expecting out engine will blow itself up....It turned out to be caused by a bad ground between the generator and rig. It was awesome....
Most of the marine diesels in the oilfield I've seen have an ESD (emergency shutdown) that when actuated blocks off the intake ports. Back in the day I've heard that they would keep heavy blankets in the engine room to throw over the intake/engine to smother it. I've witnessed a crankshaft break in half after running away and a piston and connecting rod punch a hole in the side of the block of a 16v92 Detroit Diesel
@@Ariccio123 probably because it would be another thing to maintain and these are fairly rare. in a boat it's much more dangerous because you can't just leave
That happened in my home town close to Spring Tx. Seen that plenty of times. If you have a fire extinguisher you can jam it down the intake and it will starve the engine of air. Once a cop tells to stay away, just stay away.
I am a 60 year old woman who knows nothing about diesels. My first thought is run over there, pop the hood and disconnect the battery! Simple, easy, it's done. Then I started reading all of the comments by people who actually knew trucks and diesel mechanics and realize just how dead I would have been 🙄
I once had a Detroit in an MCI coach run away while trying to prime it (it was too much ether and it calmed down after about 30-40 sec) but it scared the crap out of me. I was about a block away when it settled down. There is nothing you could have said to get me near that intake.
I worked at a diesel truck shop and this exact thing happened inside the shop. I was detailing a truck outside when smoke started appearing all around me. I look inside and everyone was running out. Scary stuff.
Boss seems like the type that would care more about saving his engine than his driver’s safety. If I’m not absolutely certain that I can choke it off, I’m staying away from that thing. You never know what might happen the moment you open the hood and start taking air ducts apart. They make it sound easy in these comment sections, but on modern diesels you really need to be quick and knowledgeable.
I was a VW diesel mechanic and saw the 5800 rpm diesel runaway. Sucked oil from the valve cover breather tube. It revved so high the flywheel exploded. It blew the starter motor 100 feet away. No you cannot stop them. Get out and run for your life. Diesel has enormous energy. The cop was smart.
Good idea to stand back. I don’t know much about big vehicles, but I do know that the amount of torque those engines make is enough that I don’t want to be anywhere near one when it’s doing this. You never know when something will finally decide to shear loose and take you with it on its way into the stratosphere.
My older Craftsman lawn mower smokes like that when I first start it too. Then after it warms up it's not so bad. I can mow yard and spray for mosquitoes at the same time! Neighbor lady cusses me for mowing when she has clothes on the clothesline but she's a raggedy old witch anyways.
My father had a v8 Cat run away....scrambled through the shop grabbed a NYC phonebook, put it over the intake...it instantly sucked a hole straight through the middle of the phonebook and shot confetti everywhere.
I had the pleasure of a marine diesel running away, it is very scary, and you can't stall it! Knew to obstruct the air intake but couldn't reach it... With the engine revving so high and the huge smoke cloud I forgot the decompressor, fortunately the engine did slow down (presumably having burnt some oil residue). It is easy to have 20-20 vision afterwards but when faced with an engine that may throw a rod sometimes you best just stand back and let it go.
It was a little Yanmar diesel, it still runs happily to this day. Although the engine did not overheat I suspect that the reed filter was partially clogged and the engine may have been running slightly hotter than normal.
Usually, there are two emergency stops one the fuel pump shut down. Two air intake blockers. These two usually work. However, there usually is some serious damage that comes with these two as well. Sad thing to see. Most of our truckers don't carry insurance for this type of loss. It is expensive
This happened to my wifes Kenworth. To her credit, she tried everything to shut it down, pulled fuses tried high-gear stall which only resulted in dropping the driveshaft she had the hood opened oil everywhere including all over her. the Pa. state police officer told me how bad he felt for her he gave a whole roll of his paper towels. It finally shut down once it sucked all the crankcase oil out and the motor seized. that was one toasted 3406 cat that purred no more.
Many many years ago I was at a salvage yard. There was an old semi with an 8V92(?) Detroit I believe. They were starting it to see if the engine was any good. It started and then,,,,faster and faster and faster it went as a runaway. The air intake filter housing was off, and before running away, one guy grabbed the 1/2" piece of plywood he had been using as a "creeper" and stuck it against the air intake pipe. Sucked a hole right through it without missing a beat. It ran at seemingly 10,000 rpm until we suspect, the it ran out of the engine oil it was burning from the turbo bearing seals (we suspect). Scary stuff.
the only way to kill a runaway engine is to cut off its air supply. cover the air cleaner intake. if you try a higher gear and pop the clutch you are likely to destroy the drivetrain and send shrapnel flying everywhere - a good way to hurt someone.
It takes courage, preparedness and know-how to deal with this kind of situation. If you have a good size CO2 fire extinguisher, I bet you can get the engine to stop with zero damage. Sealing the intake well enough is difficult..
On the old 2 stroke Detroit's I grew up with, I've seen several go into a runaway. The first thing is to pull the emergency shutdown. If that doesn't work you put it in the highest gear and let the clutch out quickly but don't just "dump" it. If THAT doesn't work, you open the hood (try and stay away from the top of the engine and the sides as much as possible, in front or behind it is safer) and cut the fuel line or knock it off with a bar or hammer. If THAT doesn't work you can stuff a shirt into the air intake or hold something flat (like a phone book) over it. If THAT doesn't work, try spraying a fire extinguisher into the intake, it can't run if there's no oxygen in the air to combust. And if THAT doesn't work, get AWAY from it!!!
Happens to Army Detroits when the Jake brake switch is adjusted wrong. I've covered the air intake with a clip board and had someone shut the fuel valve off.
Pulling tractors usually have an air intake shut off that hooks to the sled so if there is a problem the sled operator can shut the tractor down. It's usually hooked to a starter and the operator can hit the button and it pulls the cable and removes the pin holding the air intake open. I used the exhaust flap off a 5 inch exhaust. It didn't completely kill it but it but it slowed it down so the load behind it did. Nowadays they use a spring loaded trap that kills it completely
I can't stand bosses like that. Without much thought they just tell you to do something they wouldn't do. and they don't care because it's not them who has to do it. The guy on the phone would've just sat there too. 😊
I used to live/work on a tugboat. One day I rebuilt the governor on the starboard engine replaced and immediately when i hit the start button. It ran away on me, inside a bilge at that, lucky I was quick enough to starve it of oxygen. It could have exploded. Probably the scariest thing ive ever experienced. I was shaking for days
Owner: go open the hood and shove something in the turbo! Save the truck! Driver: uh..dangerous? Owner: employees are replaceable, trucks are expensive... go save the truck even if it kills you
This just happened to me today. I used a troopers knife and cut the rubber air intake hose that goes to the cold air side of turbo and then plugged it with a piece of wood. This starved the engine of air and it shut down. Very scary since all the smoke was coming into the engine area. Its a dump truck so the exhaust pipe doesn't go straight up. It goes to the side
You are the only intelligent person to comment on here, I covered the air inlet on a freightliner with a wooden clipboard and it was enough to kill the engine
I had a KW start to runaway. I had just made it into the shop with the turbo squealing. The turbo started leaking oil into the intake. The engine spooled up like crazy. I set the park brakes (truck and trailer), put the transmission in third and eased the clutch out. A day later, and a new turbo, I finished the trip and went home.
Whoa whoa whoa I’m not a semi guy but I always heard my dad talk about a runaway because he drove truck for 35 years. This guy’s boss wanted him to flip open the engine compartment on a fk’n runaway!?! It’s just my personality but I would’ve had word’s for him when I got back and seen him face to face
Had run away diesel VW Jetta back in 1992. Had just gotten on the highway was accelerating to join traffic and the engine fired off. It was small 4 cylinder engine and it was uncontrollabe situation. Can't imagine what it's like when you have 500 HP under you.
May need another engine after that, I've only seen one run away and it was in the shop, thank goodness someone had enough knowledge to cap off the air intake
My HS school bus driver was taking us home one day. Our bus was a crown bus and had an 8v71 in it. Well, it decided it wanted to run away one day on the way home. Fortunately, it ran away at a stop sign. James stuck it in 100th gear (humorously as we stated) and dumped the clutch... He said "Hang on" One big lunge forward, he dumped it and killed the motor. But clutch parts went out all over the back but the 8V71 saw life again in 4 days on the road.
I've seen them run away like before after being parked over a open gas cover at a gas station before, it was running on the gas fumes. It ended in a nice little fire as well.
It's hard to watch this video, poor engine pretty much committed suicide. GOD FORBID this ever happens again apply brakes drop into 5-6 or higher gear and pop that fucking clutch and it will shut down with out much damage. Scary shit there.
+TheReIntegration wow, finally someone with brain ! Why are people so dumb and dont do that? No they get off the car and cry like a woman and watch the car dying
If you know what you're doing, then yeah. Otherwise, that'll just bust a crap load of driveline parts and send shrapnel all over injuring or killing someone.
That is incredibly stupid. The engine is long gone before you drop your leg down on the brake pedal. If you push +6000ft lbs torque to a stationary transmission/drive shaft held by air brakes you will be adding a ton of parts to the repair bill..
+Mark M He doesn't have to worry about the repair bill. All he has to worry about is the tow cost and he'll be given money for the truck being totalled by the insurance.
Not gonna happen. I've had a "run-away". That engine was spinning at above redline. I dropped the clutch in fifth (top) and it just spun the clutch like it wasn't there. Tried to block off the intake with a 3inch thick technical manual: it sucked the book in bending it in half. Finally after the other mechanic severed several fuel lines it stopped. Completely smoked out the 6 bay shop.
Positive air shut off! Why they don't leave the factory with one is crazy to me. Push a button or pull a lever. Intake manifold is blocked and engine shuts down before I blows. But runaways are pretty cool to watch (from a distance)!
His boss is like the guy who still tries to get you to come into work after you die.
Definitely a shitty boss. Probably was telling him to fix it 🤣🤯🤦
A real dick right.
😂😂
Yeah really
Well insurance doesnt cover that
I've been a diesel mechanic 20 yrs now. you did great kid! stand back and watch it blow. you never know when its gona spit rods out at ya. stay safe built another and keep on truckin..
Finally a sensible person! Everyone else just think popping the clutch will stop it.. Idiots have no idea the power going through it. I've been driving big rigs for 15 years now and in the beginning of my career this happened to my old Volvo truck.
I just backed the fuck off and hid behind a tree. Some guy nearby jumped in the truck thinking he could be the hero, put the thing in 5th gear and slammed the clutch. Ripped the entire clutch, driveshaft and parts of the engine to shreds. Never seen rods and random metal shrapnel fly that far. The hood had like 5-6 holes in it, my gearbox was gone, everything just fucked. Would have been easier to just the let the engine run it's course.
Viking88 Finally, someone with first hand experience to debunk this 'dump the clutch' bull shit! Remember people, you've already lost the engine, don't fuck every thing else too!
deezelfairy
Absolutely, had I or anyone else been standing near the truck when it blew to bits bad things would have happened.
And not only did I have to buy a new engine. I also had to rebuild the entire drive train. Plus parts of the bodywork, brake system, left fuel tank and hydraulics.
I mean instead of just blowing the engine, the fucktard caused so much damage I might as well have bought a new truck..
The recovery crew said they found rods and parts of the truck over 100 meters /yards away.
Viking88 I work as a forklift engineer in the uk but pretty much fix any piece of equipment that comes my way, a few years ago one of my customers had a big old generator (about 200kva) they wanted to get running, we brought it back to the workshop, my old foreman (best mentor I've ever had) got it started and it instantly ran away, no time to do anything, all over in a minute, one rod let go punched through both sides of the block, oil filter housing 50 feet away, the big inline bosch injection pump torn off and embedded in the cinder block wall 15 feet away like a dart, shrapnel every where! It was a miracle no one was hurt/killed. It's serious stuff, no opening bonnets, just get away! It might just seize but if it grenades and your over it/along side it, god help you!
deezelfairy
It is indeed terrifying. I worked 12 months on the S.S Heimdal up in the bearing sea and around the Norwegian coast (the ship is an ice breaker, about 320 ft/98m long) and the gigantic diesel engines in that thing scared the crap out of me, now I'm absolutely no diesel mechanic so I'm not sure one of those engines can even run away but hell they are the size of a small house.. And the ship had 4 of them! Four 16-cylinder monster diesel engines pumping out close to 15 000 kw. What's that like 20 000 hp or something..
I loved working on that ship but standing shoulder to shoulder with those behemoths, feeling that rumble I could only imagine the chaos if one ran away.
Anyone who thinks that putting the truck in a high gear and dumping the clutch is a good idea is wrong. How many of you have seen a big engine or transmission explode? I have. My friend tried to stop a C-15 cat in a peter that was running away by putting the trans in high gear and letting go of the clutch. The trans exploded and the flywheel and/or clutch decapitated his right foot just below the knee. I was there and had to drive him to the hospital personally. When a diesel engine goes rogue, let it blow. Only a fool gets close to that raging beast. The truck/engine can be replaced (that's what insurance is for) your life cannot.
Very true, needs to be said more to warn people.
Horrible. Did they reattach his foot?
It is good idea when you do it enough early. trucker should know when something unnormal is happening in truck, so enough early then is good idea. Second i think, clutch is firs what explodes.
alex pencek lol a rag? the intake would suck that through in half a second...you need something a lot bigger and stronger than that maybe a block of wood or steel
Jack paul-russull or use the fire extinguisher the properties of fire extinguisher is to suck out the air for the Fire doesn't continue
All diesel equipment in the oilfield here in Canada is required to have positive air shut off installed to prevent this. Definitely worth getting installed, small cost to save a big expense.
How would that stop it from sucking all the oil out of the oil pan since the reason it's running away is because it's sucking oil through the turbo
Don't know how much it cost but would think any insurance company putting full coverage on these trucks would require it
@@Zx90f not trying to stop the oil just the air. No air = no oxygen = no fire
And the engine shuts down
@@matthewfrost3677 ic thanks so its a butterfly valve that closes in the air intake. I didn't understand the positive part I guess I would just called it an air intake shut off valve
or use co2 extinguishers
Prime example of why you never call your boss during an emergency. Call your boss when the dust settles.
😂
Boss be like try to drive it back home
lol his boss is on the other end of the phone saying " just ride it to your next stop, one more load ! "
"Get out the truck walk around it a few times get some coffee we got to get 1 more load!"
"just put oil in it, we'll check it when you get here"
+Steve Sai My rear axles cammed over on a 3 car hauler with 1 truck on it. Lucky i got it slowed down to make the T intersection. Good thing no one was coming. call owner. He wanted me to pick up my next 2 cars and bring it back 300 miles with only front brakes lol. i told him the truck didnt move until it had new brakes on it. had to send service out to replace them on the pull off.
Dispatch be like, "tell me just how bad is it on fire? Just a little or a lot?"
Just like a movie the cops shows up at the end 🤣🤣🤣🤣🤣🤣
His boss sounds like a real piece of crap wanting him to put himself in danger to save the engine!!!
In the first few seconds of the engine goin fill redline you are safe to try to stop it. Rip the air box open, throw a fire extinguisher or a towel in it, & that’ll slow it down. I’ve had to shut down a run away dsl before, & it’s scary af.
But after the first 1-2min of redline it’s not safe to get close to it. If you know what ur doin u could’ve saved it.
I'm not sure if you watch this video but from where I sit there was no pieces of shrapnel that potentially could have killed someone what exactly is everybody freaking out about the engine seized. So it's slow down it didn't speed up as it lost oil because it consumed it into the cylinder a simple fire extinguisher end of the turbo what if kill the engine and saved it and all you would have needed to replace was a turbo
Yup
@@michaelbenoit248 seems like something that they should teach in cdl training!
The first 20 seconds should’ve gotten out and ripped the air box off and cut the air off to the engine plain and simple then he could’ve saved the engine. Steering wheel holder needs to learn how trucks work.
I got to see a 24v Cummins run away yesterday. The idle picked up a little bit, turbo started to spool, then it just revved up out of control. 6000-8000 RPM. It happened so fast, 5 seconds, tops. The valvetrain sang like an E46 BMW, then it locked up. It sent oil out the exhaust for 40 feet. Shop got completely smoked out. You could smell the burnt oil for 8 blocks. The shop owner looked at his apprentice (5th day on the job) and said, "The worst thing that can possibly happen, just happened. This is as bad is it gets. Let's sit here for a bit and make sure it doesn't catch fire. Maybe we can find a barrel to burn all of the oily rags we're about to make."
Who took the seals out of it before running it? I know for a fact from experience that a 24v Cummins won’t just run away. They are the most reliable diesel engines you can get. Not trying to be rude but this sounds like complete bullshit. You wouldn’t smell the oil for 8 blocks. It was probably a Powerstroke or a Duramax.
@@CodyMechanix You're right. We've been thinking about that and came to a similar conclusion. The vehicle owner trashed the original engine by running it low on oil. So, the shop owner procured a different engine and installed it, only to have it run away as described. We're not really sure why this happened. He did not replace the intercooler. For a while, the shop owner suspected that the intercooler was contaminated with oil and caused the new engine to run away, but the engine ran until it was up to temperature, albeit smokey. The amount of oil it discharged was incredible, far more than what would physically fit in the intercooler, hence why we also believe the turbo was sabotaged.
@@Dr_Xyzt oh, ok.
@@CodyMechanix That was a heck of an experience. The rear quarter was covered in oil. More oil was spewed out the exhaust for about 2 car lengths. It was all over the side of the shop. Both bays were smoked out so bad, you couldn't see. It happened so fast. That was the fastest runaway I've ever seen. I got on UA-cam and looked at runaways for about an hour. I swear, it made the BMW inline-6 sound too. That tin-like buzzing sound. We had seen runaways happen before, but never that fast. The idle was hanging high for a good 12 seconds. Once the turbo spooled, it was over in 5-7 seconds. We didn't stand a chance.
@@Dr_Xyzt That’s crazy. I guess it didn’t want to go out without a show! 😂
Nice truck for sale. Runs decent, but needs TLC.
"Never run hard"
Garage kept and only driven on Sunday's to church
Snrub0800 easy highway miles
"Ran" decent... if nobody notices ran, we be alright...😂
Richard Race 😂
its a company truck, i dont blame the trucker, who the hell would get near a semi that run away? machines can be replaces, lives cant
ks10308 yes they can there called soldiers we have millions people are machines and we make more
Sounds like you need "Hooked on Phonics."
ks10308 hey guess you have watched Brian Regan
@@bryanmartinez6600 no he saw your comment.... I must second that, go learn some grammar and spelling if you haven't already in the last 5 years
@@dontbetreadin4777 I do have to agree, I typed this comment years ago and had forgotten about it. I'm honestly surprised people still reply to such old comments.
This has happened from time to time as I find old comments and even I can't understand.
im pretty impressed, its crazy to see the true abuse a motor can take before it completely fails...
Diesel baby.
Agreed, modern engineering is incredible. You have to work really hard to break most modern vehicles.
@@KB-bh9hp Like a fiesta, right?
DEF: Hold my beer 🍺
@@alanwatts8239 Just most modern cars in general.
Some Diesels do have it. The barge I used to work on had 2 twin turbo Detroit diesel v8 engines and there is a solid rubber flap on the inside of the intake manifold so if an event like this happens, you pull a lever and the flap closes and restricts the air from entering the engine..
The motor in that truck has no such thing.
Back up generators have them on 2 stroke Detroit's. Trucks no overspend shutdown solenoids to trip flap
@@FinnellRacing Well good thing that the intake isn't the motor then and can be modified. Super simple to put a flap anywhere just after the airbox.
Big block of timber over the intake, snuff the bastard
Most of the marine diesels I've seen have this emergency shutdown and back in the day the old folks say they would keep heavy blankets in the engine room to throw over the intake/engine to smother it
Good to know that the company values employees wellbeing over property. Would have to be completely psychotic for the supervisor to order the driver to get near truck to shut it down. Even if that were possible. Glad the driver had his priorities straight! Cool video, Thanks!
A smart employee would have known how to shut it down in the first place. Too stupid to hire in the first place.
@@billtmarchi4320 ur full of shit my guy there is no way to shut a runaway unless u went under the hood or to intake and choked it with a shirt or with a co2 fire extinguisher . So good try there but ur wrong and the engine is not worth risking ur life to save unless u have the right tools and even then sketchy. So that would have been a dumb employee not a smart one.
@@billtmarchi4320
how do you suggest he do that? Sure he could dump it in a high gear and risk blowing the gearbox sky high and getting bits of transmission through his body … or he could open the hood and shove something in the intake, risking getting piston 7 to the face
He made the right call. The engine can be replaced, he cannot be replaced.
@@ALittleBitOfGay try educating yourself you idiot and listen to what he says. Then go F yourself. We have dealt with runaway engines before. Any person with some intelligence could figure it out. I didn't see a rod fly or engine explode, did you??? Stalling would be easy. Shoving a rag or an extinguisher into the intake is easy also. I bet you don't even know how to wipe your ass yet. Or are you afraid your ass will explode or burst into flames .?? You idiot
@trollolol I Think the original comment was sarcastic lol. Boss was a shithead for sure
his boss on the phone sounded like he didnt have insurance on the truck or something. He was all worried about the cost of getting a new engine. The hell with your safety, just save my truck. Lol.
you a clueless person who seems to have no perspective. Educate yourself before you send your wisdom out in the world for ever. Virtue signaling donks are a dime a dozen.
insurance doesn't cover engine replacement, not for a semi or your car. genius.
@@TheRoadhammer379 Maybe the original poster meant to say warranty instead of insurance, people make mistakes all the time when writing comments. No need to be nasty about it.
@@TheRoadhammer379 chill
@@TheRoadhammer379 🤡
I love all the people saying "oh just go and try to clog the intake."
I'm not gonna risk my life for bossmans truck..... I am not even gonna risk my life for my own truck.
You right could you imagine getting sprayed with boiling hot oil and coolant..no thanks
In the Navy we used a diesel powered mobile generator, the NC-8. The unit had an emergency shut off handle. It simply cut off air to the engine. Surprised big rigs do not have something similar.
That's because the Navy has brains!
@@firstlast189 and they are gay
Yeah, there should be an emergency lever of some sort.
I've never even heard of this issue. With proper maintenance my guess is most wouldn't, either.
@@thedwightguy yeah. I'm told this truck was 20+ years old. Easily enough time to rack up 2+ million miles
Those diesels engines must be pretty tough, I thought this thing would just blow apart rather than die slowly!
diesels are made tough
Usually they’ll just seize up, but occasionally they’ll blow up
@@AsianNIGMA That seems to be what a lot of people are debating on here. You just don't know, and don't want to be close on the off chance it doesnt just seize.
Exact same thing happened to me the other day. You did the right thing by bailing out and running. It's not worth it to have a rod come through the block and kill you or have a turbo explode in your face. Let the engine die. It already had a serious problem and would have been damaged more as soon as it started to rev. And would you really trust it again after that. Engines can be replaced. People can't.
My supervisor would argue that people can, indeed, be replaced 😉
@@lateral1385 Next time you're looking for a job, try to find a supervisor who is human.....
You can never understand how helpless you feel untill it happens to you. Runaway diesel has a mind of it's own and nothing you can do to change it!
This just happened to me on my peterbilt last Friday. Had the engine overhauled 5 months ago. Engine is a total loss. I’m glad it was under warranty. This was the scariest thing I have ever experienced in my 40 years of trucking. You can’t do anything but stand back and watch.
What brand was the engine?
@@boataxe4605 : Detroit series 60. The turbo went bad and filled the charge air cooler full of motor oil. Can’t shut it off.
@Dakota Duree : ok, the truck got plugged in to see how fast the engine was spinning, The computer said it was turning 6100 rpms. If you are stupid enough to stand anywhere near that engine cranking that hard be my guest. When these things take off like that you don’t have time to block the intake. Also what do you block it with??? Ive got twin vortex air cleaners on it. How do you block those???
no. You can do something instead of letting it destroy itself. You can use a fire extinguisher and blast it into the intake. Without oxygen it can't run.
Also you could put it in the highest gear and slowly release the clutch. A burnt clutch is better than a destroyed engine.
Also don't dump it because you might destroy the tranny.
@@dieselgeezer18 : you’re fucking ignorant. The truck was set up to put and was dynoed at 605 hp and 2050 torque to the ground. Put the fucker in high gear and “ slowly let the clutch out “ is a guaranteed clutch failure, probably a transmission coming through the floor. As far as a fire extinguisher, all that does is plug up the filter element, I have 2 vortex filters. Ya know the big shiny cans on both sides of the truck cab. Maybe it will happen to you and let’s see what you do. What a dumb ass. Put it in gear.
dispatch be like: so when can you get that load in?
Driver be like: I can't make it. The truck is stranded beyond repair.
@@LegoWormNoah101 do it anyways
Driver: truck just blew its load
@@Lousasshol LMFAO
@@Lousasshol Ay yo?
For those saying that you can shove a shirt in the intake to shut it off, you might want to consider how large a motor the big trucks have. The shirt truck might work for a small car engine but with this big of an engine running wide open, the turbo would shred the shirt to pieces and send it out the exhaust.
That's not exactly what would happen.. but more or less
The turbo isn't a vacuum, 😂. We've stopped a runaway Detroit in a freightliner with a wooden clipboard over the air filter inlet. The engine is big but the turbo isn't a giant aircraft turbine, 😂. Experts...smfh
I pissed in in a runaway diesel so it would hydrolock
@@TheRoadhammer379 my family does tuck and tractor pulling and trust me I've seen a turbo eat a shirt
You guys ever see whistling diesels duramax eat rags? It was quite a video
I'm surprised there wasn't a violent explosion like rods coming through the hood or even a piston or something. The less mess the better. Glad you stayed away from it
Yeah me too but I bet those headers were glowing red hot
Whatever engine, the manufacturer put in the truck, sure is a testament to how well built it was.
Listening to this driver on the phone with his boss (I'm assuming) reminds me of talking with my former supervisor whenever I had a safety concern.
Supervisor- "Are you sure you can't just do 'x' ?" Which translates to "I'm not going to tell you to do this dumb, dangerous, and/or different thing...but I'll throw it out there...and if you want to do it (and possibly fix it so you can get on down the road and keep making me money)...I won't stop you."
Because when they do that they don't run on its fuel, but on its lubricating oil !
It's an emergency air shut off that is needed.
They need to have a emergency compression release switch for it so i case it takes off like a jet you can push the switch and release the compression which kills the engine
@@ryantemming1260 not a jet engine, what a diesel needs is a air shutoff as he said
It took awhile, but some one finally said it was sucking the lube oil from the crankcase into the cylinders. Clearly you know your engines! No stopping that one safely, let it blow.
A Jake brake already exists to release the compression, so could the same equipment be used to stop a runaway engine?
@@user2C47 maybe? though I think a runaway would be going fast enough to still keep going, the jakes only take so much compression away, but also at those kinds of RPM it would for sure cause other damage, bent push rods broken rocker arms bent valves etc, which could stop the engine too, if they even engage... lots of ifs, best and really safest thing is to starve it of air by blocking the intake somehow, which I admit is scary as F cause you will likely need to pull the intake boot and find something to cover the turbo... before it throws a rod
Though unlike what most of the keyboard commandos on here are claiming thrown rods and exploding transmissions don't create all that much carnage, the firewall/floor boards will stop it or the flimsy popcan aluminum hood will stop a thrown rod.. most of the force is taken up by the case. though if you are very unlucky... you could catch a thrown rod or worse a head could blow off, but its unlikely.
Jonny2k100 gave a good description. Sometimes diesel engines suffer from runaway effect, for example when engine oil mixes with air trough broken seal in turbo. As diesel ignites fuel using high compression it's speed is governed by amount of fuel added, there is no throttle body, spark plugs, etc, nothing to "switch off" to stop it. Motor oil bypasses fuel system and gets directly to the engine it makes it run without any diesel added. More engine speed = more oil pressure.
So diesel motor oil is combustible?
@@PoliticalGangster Yes it is, although it would not burn in open air without preheating.
👍🏾 thanx for the knowledge.
Soo you are saying a lot of oil needs to be getting in?
A positive air shut off would stop this dead in its tracks.
To those people who are suggesting dumping the clutch..... you might end up dying doing that. Dumping the clutch on a bigass runaway truck diesel might grenade your clutch/flywheel/transmission and send metal flying fast as fuck everywhere... socgood luck with that.
Lol people are actually suggesting to attempt to put a runaway in gear?? Holy hell that’s dumb.
Those things go from about 500-600HP then runaway to somewhere in the neighborhood of 2,500-6,000HP.
Those engines cannot be stopped without cutting off the air. Lol We had one let go on our dyno a week or two ago and had to steel-plate the intake. Saved the engine and the dyno luckily.
@@NPCSN What'd the dyno graph show?
Either cut off the air or dump a CO2 fire extinguisher right down the turbo (assuming it has one, not all diesels have turbos). Thats what you actually have to do. If you're gonna cut off the air, do it with something solid if you can. And DO NOT. I REPEAT: DO NOT put that thing into gear because second ya do it's gonna spin the transmission too fast and it'll blow up. See another comment. A guy did that and his right foot was decapitated.
And if its been going for more than 20 or 30 seconds, don't try to save it cause chances are its gonna throw something out the block somewhere and you don't know where or when its gonna be. If its gonna blow, best to leave that raging beast be.
@@NPCSN How could it possibly make 2500 -6000 hp? Both hp and torque start to drop after so many rpm.
@@rickwilson5611 Kinda but not really. A runaway can produce abt 10x the average power of the engine. The HP and Torque may slow after a point but itll still be hella power.
"well Boss, everything was going good til it wasn't"~ Ricky
So sad to see and hear the demise of a huge diesel workhorse. RIP little dude.
a last year my friend had a brand new new holland combine with only 1150 hours on it, he was pulling up to a stop sign and started to idle it down and right when he idled it down, the seals in the turbo failed, BUT, their was so much oil being sucked into the cylinders that it with in seconds of it starting to blow a bunch of smoke , there was so much oil in the cylinders that it hydro-locked the pistons before it could seize up
volkswagen emission test department will pass that lolz....
matt amis this isn't even close to what Volkswagen blow out of their exhaust pipes
one time my friends ‘12 TDI ran out of DEF and he said he pissed in the tank and drove away lmao
@@SomcallmejameS ya lying
@@Problematicars i wasn’t there to see it but that’s what he said
@@Problematicars def is a scam
About 20 years ago, I was following a dump truck up a mountain at 55 mph, when, over a distance of a half a mile, the exhaust out of both stacks went blacker and blacker, and he pulled over. As soon as he pushed the clutch in, it revved crazy high. He put it back in the highest gear he had and dumped the clutch. I stayed with him until help arrived and had quite a conversation with him. He said he knew he had a problem when no matter how much throttle he gave it, power output kept going down. Turned out the intake side turbo seal failed, dumping crankcase oil in the intake. If you have uncontrolled fuel ( crankcase oil) in the intake it will rev like crazy but not produce any power because it's running too rich. He did save the engine, but enough oil got into one cylinder that it hydro locked. Fortunately, the engine had only 5k miles on it and was still under warranty.
Meanwhile the boss is like, “IDGAF ABOUT YOUR LIFE! Save my truck!”🙄
"Hey man Im guna need ya to climb up in there and stick your finger in something! And can you come into work next Saturday?" 😂 🤣
This was heartbreaking and impressive all at the same time.
Old truckers never die. They just get a new Peterbuilt.
"Call the wrecker"... sad ending to the diesel engine.
Something so interesting about hearing those rpms come down with a dying engine like this, its amazing how it can take it to the very last bit until resistance is too much then just silence lol
I guessing it's caused by the engine burning all the sump oil and the internals overheating and expanding until the clearances hit 0 and then it seizes and stops. Probably totally wrong but that's what I picture happening.
The unintended fuel source could have just ran out. Engine is probably still biffed though.
I'm a retired long distance truck driver. I personally never had one run away on me but have seen it happen a few times in my 25 years on the road.. It doesn't happen much now with the new computer controled engine.
2006 and up are total bags of shit!
that is a computer controlled engine, probably ISX
And it could be someone disabled a bunch of stuff on the engine
This just aches my heart man, I feel for ya.
Fun fact: a runaway diesel can produce up to 4x its rated hp during a full blown runaway event. Thats why its just best to get the heck out of there. Its a ticking time bomb.
"I'm not pulling that hood open." Smart man.
Years ago, our fire department received its first engine with a top mounted diesel generator. No problem for a couple of years. One evening, we responded to a car accident, really no big deal....We extended the floodlights, and lit the roadway. As we were extricating the patient, our generator ran away. The floodlights got as bright as the sun, you couldn't hear each other talk, and the blackest exhaust.....We have never seen this before. My driver could not shut the generator down, the medics hustled the patient out of the way. I called for another engine company to put OUR fire out. 911 could not grasp what was happening, until I told them that we are expecting out engine will blow itself up....It turned out to be caused by a bad ground between the generator and rig. It was awesome....
This is a great story. I just laughed, well it's still there,but I laughed.
Had one do this recently. It blew up and decapitated me. Doctor Fauci sewed my head back on. Thanks doc!
Most of the marine diesels in the oilfield I've seen have an ESD (emergency shutdown) that when actuated blocks off the intake ports.
Back in the day I've heard that they would keep heavy blankets in the engine room to throw over the intake/engine to smother it. I've witnessed a crankshaft break in half after running away and a piston and connecting rod punch a hole in the side of the block of a 16v92 Detroit Diesel
Came here to ask about this. Why isn't that standard equipment?
@@Ariccio123 probably because it would be another thing to maintain and these are fairly rare. in a boat it's much more dangerous because you can't just leave
@@roboticunclephil plus you need that engine to get back to shore.
Our fire trucks had them. But then we had the PTO to run the pumps in a high rpm so maybe that was why.
Never let your boss determine if you should live.
That happened in my home town close to Spring Tx. Seen that plenty of times. If you have a fire extinguisher you can jam it down the intake and it will starve the engine of air. Once a cop tells to stay away, just stay away.
she idles at 9 grand
I am a 60 year old woman who knows nothing about diesels. My first thought is run over there, pop the hood and disconnect the battery! Simple, easy, it's done. Then I started reading all of the comments by people who actually knew trucks and diesel mechanics and realize just how dead I would have been 🙄
I once had a Detroit in an MCI coach run away while trying to prime it (it was too much ether and it calmed down after about 30-40 sec) but it scared the crap out of me. I was about a block away when it settled down. There is nothing you could have said to get me near that intake.
I worked at a diesel truck shop and this exact thing happened inside the shop. I was detailing a truck outside when smoke started appearing all around me. I look inside and everyone was running out. Scary stuff.
Boss seems like the type that would care more about saving his engine than his driver’s safety. If I’m not absolutely certain that I can choke it off, I’m staying away from that thing. You never know what might happen the moment you open the hood and start taking air ducts apart. They make it sound easy in these comment sections, but on modern diesels you really need to be quick and knowledgeable.
I was a VW diesel mechanic and saw the 5800 rpm diesel runaway. Sucked oil from the valve cover breather tube. It revved so high the flywheel exploded. It blew the starter motor 100 feet away. No you cannot stop them. Get out and run for your life. Diesel has enormous energy. The cop was smart.
Good idea to stand back. I don’t know much about big vehicles, but I do know that the amount of torque those engines make is enough that I don’t want to be anywhere near one when it’s doing this. You never know when something will finally decide to shear loose and take you with it on its way into the stratosphere.
My older Craftsman lawn mower smokes like that when I first start it too. Then after it warms up it's not so bad. I can mow yard and spray for mosquitoes at the same time! Neighbor lady cusses me for mowing when she has clothes on the clothesline but she's a raggedy old witch anyways.
Having seen engines like this blow up with con rods flying out I certainlly wouldn't be along side the hood.
Employee: Boss I can’t make it to work my car is acting up.
Boss: Its ok just come to work.
My father had a v8 Cat run away....scrambled through the shop grabbed a NYC phonebook, put it over the intake...it instantly sucked a hole straight through the middle of the phonebook and shot confetti everywhere.
Shows how well built it is. It can take a beating!
I had the pleasure of a marine diesel running away, it is very scary, and you can't stall it! Knew to obstruct the air intake but couldn't reach it...
With the engine revving so high and the huge smoke cloud I forgot the decompressor, fortunately the engine did slow down (presumably having burnt some oil residue).
It is easy to have 20-20 vision afterwards but when faced with an engine that may throw a rod sometimes you best just stand back and let it go.
Always install a turbo oil feed kill switch on the dash of a diesel vehicle. I don't understand why this isn't mandatory.
What kind of marine diesel engine did/ do you have?
It was a little Yanmar diesel, it still runs happily to this day. Although the engine did not overheat I suspect that the reed filter was partially clogged and the engine may have been running slightly hotter than normal.
i had a yanmar diesel on a launch run away last night. scary. stopped it by pulling fireboy
@@markm0000 because people are stupid
Usually, there are two emergency stops one the fuel pump shut down. Two air intake blockers. These two usually work. However, there usually is some serious damage that comes with these two as well. Sad thing to see. Most of our truckers don't carry insurance for this type of loss. It is expensive
This happened to my wifes Kenworth. To her credit, she tried everything to shut it down, pulled fuses tried high-gear stall which only resulted in dropping the driveshaft she had the hood opened oil everywhere including all over her. the Pa. state police officer told me how bad he felt for her he gave a whole roll of his paper towels. It finally shut down once it sucked all the crankcase oil out and the motor seized. that was one toasted 3406 cat that purred no more.
americanminer sounds like your mrs is one brave lady. Glad she survived the ordeal. Be safe, friend.
I would pay to see this over any firework show. Gives me both anxiety and excitement. Something may also be wrong with me....oh well.
Many many years ago I was at a salvage yard. There was an old semi with an 8V92(?) Detroit I believe. They were starting it to see if the engine was any good. It started and then,,,,faster and faster and faster it went as a runaway. The air intake filter housing was off, and before running away, one guy grabbed the 1/2" piece of plywood he had been using as a "creeper" and stuck it against the air intake pipe. Sucked a hole right through it without missing a beat. It ran at seemingly 10,000 rpm until we suspect, the it ran out of the engine oil it was burning from the turbo bearing seals (we suspect). Scary stuff.
the only way to kill a runaway engine is to cut off its air supply. cover the air cleaner intake. if you try a higher gear and pop the clutch you are likely to destroy the drivetrain and send shrapnel flying everywhere - a good way to hurt someone.
It takes courage, preparedness and know-how to deal with this kind of situation.
If you have a good size CO2 fire extinguisher, I bet you can get the engine to stop with zero damage.
Sealing the intake well enough is difficult..
On the old 2 stroke Detroit's I grew up with, I've seen several go into a runaway. The first thing is to pull the emergency shutdown. If that doesn't work you put it in the highest gear and let the clutch out quickly but don't just "dump" it. If THAT doesn't work, you open the hood (try and stay away from the top of the engine and the sides as much as possible, in front or behind it is safer) and cut the fuel line or knock it off with a bar or hammer. If THAT doesn't work you can stuff a shirt into the air intake or hold something flat (like a phone book) over it. If THAT doesn't work, try spraying a fire extinguisher into the intake, it can't run if there's no oxygen in the air to combust. And if THAT doesn't work, get AWAY from it!!!
Happens to Army Detroits when the Jake brake switch is adjusted wrong. I've covered the air intake with a clip board and had someone shut the fuel valve off.
Pulling tractors usually have an air intake shut off that hooks to the sled so if there is a problem the sled operator can shut the tractor down.
It's usually hooked to a starter and the operator can hit the button and it pulls the cable and removes the pin holding the air intake open.
I used the exhaust flap off a 5 inch exhaust. It didn't completely kill it but it but it slowed it down so the load behind it did.
Nowadays they use a spring loaded trap that kills it completely
I just learned about runaway diesels yesterday, now you tube thinks I want to see more. They are correct.
Love how the boss on the phone is telling the employee to check the hood.
I can't stand bosses like that. Without much thought they just tell you to do something they wouldn't do. and they don't care because it's not them who has to do it. The guy on the phone would've just sat there too. 😊
Good call ignoring your boss and keeping your distance. Once a diesel runs away like that, better off letting it blow and keeping yourself safe.
I used to live/work on a tugboat. One day I rebuilt the governor on the starboard engine replaced and immediately when i hit the start button. It ran away on me, inside a bilge at that, lucky I was quick enough to starve it of oxygen. It could have exploded. Probably the scariest thing ive ever experienced. I was shaking for days
The guy taking the video is halarious!! " its gona go!!!!!" "Its gona go!!!" Oh welp it seized up!"
RIP old boy. You’re in a better place now
Owner: go open the hood and shove something in the turbo! Save the truck!
Driver: uh..dangerous?
Owner: employees are replaceable, trucks are expensive... go save the truck even if it kills you
The Peterbilt is not running away, the engine is.😊
dispatch will still be like “well can you try to make it there by 3? these guys really need that load”
The boss needs FIRED
Wow I never knew that could happen to a semi. And I couldn't imagine how bad that smoke smelled.
This just happened to me today. I used a troopers knife and cut the rubber air intake hose that goes to the cold air side of turbo and then plugged it with a piece of wood. This starved the engine of air and it shut down. Very scary since all the smoke was coming into the engine area. Its a dump truck so the exhaust pipe doesn't go straight up. It goes to the side
You are the only intelligent person to comment on here, I covered the air inlet on a freightliner with a wooden clipboard and it was enough to kill the engine
I had a KW start to runaway. I had just made it into the shop with the turbo squealing. The turbo started leaking oil into the intake. The engine spooled up like crazy. I set the park brakes (truck and trailer), put the transmission in third and eased the clutch out. A day later, and a new turbo, I finished the trip and went home.
The guy on the phone wanted you to risk your life to save a few dollars.
Only Jesus can save!
Whoa whoa whoa I’m not a semi guy but I always heard my dad talk about a runaway because he drove truck for 35 years. This guy’s boss wanted him to flip open the engine compartment on a fk’n runaway!?! It’s just my personality but I would’ve had word’s for him when I got back and seen him face to face
Oh boy we have a chance to turn our sirens on.LOL.
ROLLING COAL ALL DAY ERRY DAY
That's a stationary anti-environmentalist support machine!
something tells me your a teen 😂 roll coal in my cummins just got my permit bro 😂
Had run away diesel VW Jetta back in 1992. Had just gotten on the highway was accelerating to join traffic and the engine fired off. It was small 4 cylinder engine and it was uncontrollabe situation. Can't imagine what it's like when you have 500 HP under you.
May need another engine after that, I've only seen one run away and it was in the shop, thank goodness someone had enough knowledge to cap off the air intake
Try puncturing a shallow natural gas line with a D8 dozer grouser and see what happens when the engine gets a whiff of that.
My HS school bus driver was taking us home one day. Our bus was a crown bus and had an 8v71 in it. Well, it decided it wanted to run away one day on the way home. Fortunately, it ran away at a stop sign. James stuck it in 100th gear (humorously as we stated) and dumped the clutch... He said "Hang on" One big lunge forward, he dumped it and killed the motor. But clutch parts went out all over the back but the 8V71 saw life again in 4 days on the road.
Great story!
Lucky he didn't kill you all with the whole transmission blowing apart like a literal grenade.
And also add the chance of parts of the clutch coming through the floorboard and cutting feet off.
That’s an OSHA violations for him to force him to do something so dangerous like that
Legend has it there is a construction crew still waiting for their manlifts.
I've seen them run away like before after being parked over a open gas cover at a gas station before, it was running on the gas fumes. It ended in a nice little fire as well.
It's hard to watch this video, poor engine pretty much committed suicide. GOD FORBID this ever happens again apply brakes drop into 5-6 or higher gear and pop that fucking clutch and it will shut down with out much damage. Scary shit there.
+TheReIntegration wow, finally someone with brain ! Why are people so dumb and dont do that? No they get off the car and cry like a woman and watch the car dying
If you know what you're doing, then yeah. Otherwise, that'll just bust a crap load of driveline parts and send shrapnel all over injuring or killing someone.
That is incredibly stupid. The engine is long gone before you drop your leg down on the brake pedal. If you push +6000ft lbs torque to a stationary transmission/drive shaft held by air brakes you will be adding a ton of parts to the repair bill..
+Mark M He doesn't have to worry about the repair bill. All he has to worry about is the tow cost and he'll be given money for the truck being totalled by the insurance.
Not gonna happen. I've had a "run-away". That engine was spinning at above redline. I dropped the clutch in fifth (top) and it just spun the clutch like it wasn't there. Tried to block off the intake with a 3inch thick technical manual: it sucked the book in bending it in half. Finally after the other mechanic severed several fuel lines it stopped. Completely smoked out the 6 bay shop.
That seizing screach..
Positive air shut off!
Why they don't leave the factory with one is crazy to me.
Push a button or pull a lever. Intake manifold is blocked and engine shuts down before I blows.
But runaways are pretty cool to watch (from a distance)!
congrats your Semi has been upgraded to military grade smoke machine.