Run Away Diesel Engine with RPM limiter removed | Will it Explode? 

Thanks to Koneistus Alho for letting us film their diesel engine mayhem! As said on the video we order quite much smaller parts and larger patches from them that we don't have suitable machines for on our own workshop and I can strongly recommend them. Check their machines and services from their websites if you need high quality machining in Tampere area www.koneistusalho.fi/ And for people that worry that it was some really rare historic engine, no need to worry these are super common and not rare in Finland and they still have a LOT of nicer engines like this to play with.

Finnish space program looks good

Whoever built that thing was a master mechanic. Back when things were really built to last, we live in a disposable world now.

That hurt the mechanic soul in me. Poor little bugger, to be abused like that… O.0

I was kind of bummed to see such a cool old diesel go like that, but after looking at the flywheels, there's like a quarter inch of runout lol😂. That thing didn't have more than a couple days worth of operation before the journals/bearings turned to playdough. Looks like it took a really hard hit to bend the main shaft that bad. Engines aren't supposed to shake themselves to death even in a runaway condition lol. The shaking was from the flywheel's insane runout...

These were engines built to last lol. Basically all old two stroke diesels are nearly unkillable, somehow sad to watch it getting destroyed but also quite interesting :D

That engine looked ancient, but this is definitely a testament to whom ever engineered and built this thing.

That poor engine, such a will to live 😭😭😭😭

Brings a tear to the eye this does.

That engine is way too powerfull. It's falling apart, on fire and probably melting down but still keeps on running like it's usual day for it.

For a lifetime of loving old engines that was very sad to watch.

That was just depressing to watch a beautiful antique engine, likely 100 years old, and still running, being destroyed like that.

As an old engine collector and enthusiast, this makes me very sad.

A dislike for destroying a 75+ year old treasure.

There's something sad, even melancholy, about seeing it on fire and literally running itself into pieces, but still running hard anyway, even to the point of self-destruction.

*Diesel Engine Manufacturers:* Noooo you can't surpass the max speed with tierip bands, it will catch fire and explode!!! *Anni & Lauri:* Haha Diesel Engine goes brrrrrrrrrr

Kudos to the people who designed and built this engine. If your design can survive and more importantly not kill anyone even after everything has gone wrong its pretty great.

"Whiskey, thins down the mix! Gives us another 50 RPM!" - Howard, 'Down Periscope', while adding whiskey to a WWII submarine's oil.

"Don't try this at home. This is stupid." Best advice yet.

Another fun way to destroy a diesel engine is to dump a halon fire-extinguisher into the intake. Halon will break down under the compression, and the gasses it makes expand quite a lot...drives the engine like super-charged fuel! Not only that, the halogens it makes are fairly toxic and very corrosive to metals. My brother was designing 'packaged power' units; a shipping container with generator set, controls and fuel tanks for providing power where needed. The things needed fire suppression, and nobody knew at the time that halon and diesel is a bad mix. They had a big demonstration test of the fire control system; lost a very expensive brand new engine. In front of customers!

Man have a heart, I would die to have one of those.

Poor machine! She didn´t deserve such an end! 😔😔😔

Why didn't you just add a compressor?

"I declare that this is a successful failure."

For its age, its quite amazing how long it survived

I've only seen a runaway diesel in person once. A neighbor who liked to work on cars dragged home this ancient Mercedes sedan. He finally got it running, and it just took off. We came outside just in time to see him jump into the car and try to stop it by holding the brakes and putting it in gear, but all that did was blow out the clutch. It ran for maybe another 10 minutes before something did explode. Quite a show.

At the end, it almost like the little engine wanted to say "I'm sorry, I can't run no more boss. I broke. But did I do good today? Will I get some fuel and oil now? Will you clean me an repair me so I can work for you forever? Boss?...... Boss, are you there....?" So sad :\

Everyone complqining about the destroying this engine should know that this specific engine is super common in scandinavia.

I bet hot bulb engines will have a renaissance. When people want to live off grid and still have the comfort of electricity this is one beautiful power source. Runs on anything that burns almost.

Things where over engineered back then, with a long stroke like that the piston speed and acceleration must have been frightening. Something serious and reciprocating gave out as early as 3:20 but it just kept going. A strip down would be interesting.

Definitely shows how strong those old school engines really are.

This 100 years old 2 stroke engine is still lot safer than a self-destroying BMW N47D20.

"... and don't try this at home, this is stupid." Love you guys, thumbs waaay up! Thanks a lot with big smile on face.

Those engine revs. That's how most people were driving when they heard the pubs were open after lockdown

I’ve never seen a crank shaft bend that badly before the con rod fails

Restoration on this fine old engine would have been more enjoyable.

I love that you guys have a pure channel with very little emphasis of self worship and more a worship of life and all of its beautiful perks.

Yes, thats how I imagine Dieselpunk Battle Mechs fighting - "Limiters off men, last one push!"

I kinda feel like I just watched a great work of art being destroyed.

Old engines are very cool. It's sad to see one get destroyed. 😔

These old semi-diesels can run for ever! I like to see a full restoration of this engine

I see the Amon Amarth T-shirt \m/

This little engine survived a lot of time for this insane abuse and for the age and the probably thousand of hours it ran in the passt just incredible.

Man I need one of those badly! To generate electricity for my home. Those things run forever!

Original manufacturers of that engine would probably be proud and pained to see such insane rpm (and for what it is, insane power) lasting that long out of their old machine

Why would you want to kill such a cool old engine??? It's an antique 😭

The little engine that could - May it Rust In Peace :)

that engine, on fire, rattling itself to pieces but somehow still going, is how I feel all the time

waste of a good vintage engine

That poor engine never did anything to anybody, And you killed it.

6:48 when your buddy wants to show you his sick new vape

I couldn't even watch this, this engine is a unique relic that should have been preserved in a museum, not blown to bits

I'm not a fan of pointless engine destruction. Especially when comes to those antique Hot Bulb engines. I would have bought it right away to prevent its certain death...

this is what thomas and his friends do to diesels at 3 AM

There's not a lot can be said about the mentality of people who willfully go out of their way to destroy a reliable old engine that some other enthusiast would have restored.

Try that on a 2 stroke next.. Rpm untill the piston shoots through the head(2 stroke gas engine)

First time in my life a movie made me cry 😭😭😭

"quite far away" 6:50 Must be a trick of perspective haha

How do you say, " I didn't have enough junk on the farm, I need more. Here, I make more". Such a good old diesel. Generator, sawmill, cane crusher. Oh well.

I love the sound of old engines like that. Especially when they run out of control.

Antique diesel: on fire. Also the antique diesel: runs as usual

Almost a crime to do that to that old diesel engine. RIP

I am impressed how long it ran while on fire!

Everyone complaining that this engine shouldn't have been destroyed would never spend a dime to preserve history like this. Most people don't have a clue on not only what it costs to restore something but also the cost to store and maintain it.

For me that was painful to watch a beautiful antique engine being destroyed. Thumbs down on that one.

That engine deserves a Medal for performance. An old motor like that taking an incredible amount of abuse. If you try that with an engine made from today the video would be much shorter and no Medal.

Don't worry I wouldn't try something so stupid at home I have respect for that old iron

I have to say, that engine is tough!!!!

That old motor didn't deserve that. It deserved being restored and shown. It is an strong one.

man i actually dream of having an old engine like that to use with a generator offgrid near the lake.

Such a shame, needless destruction of a nice old hot bulb engine, another bit of history condemned to a slow boat the melting pots

“Dont worry we moved far away just in case it exploded” ~moves 15 feet away~

Sad to see an antique machine destroyed for a laugh.

Why would you ever want to destroy such a beautiful old machine there's so much you can do with that

Well that was a waste of a good old engine. Personally I think it had plenty of life left in it. Oh well. 🤔

This is the first time ive disliked one of your videos. Rebuilding it will prove your worth as an engineer, in my opinion. Looking forward to seeing it run again.

X-Haust Seriously tho. That thing looked like it belongs in a museum lol. Some people might consider that desecrating artifacts lol

RIP nice engine.

LOL, I knew you'd be catching some flak from the antique engine aficionados on this one!😆 Can you imagine how fast a Lanz Bulldog could go, if you could wind it up like this?🤣 I'm kind of surprised it didn't send a connecting rod through the side. The iron pistons in those engines are *HEAVY!* 😁

RIP little engine...

Its a crying shame to destroy a little engine like that

Run away diesel engines are scary things.

That was hard to watch! That work of art refused to die. I would have given it a good home and treated it with care.

I don't understand why someone would purposefully destroy a perfectly serviceable doomsday post-apocalyptic power plant...

Stupid idea! And it's not a diesel engine. It's a hot bulb engine

Now you have destroyed a very nice little diesel engine. You must be proud.

old diesels are cool, but in the name of science im cool with this

We used to have mini-bikes with 3.5HP engines. Of course we always disabled the speed governor :-)

@ 7:04 Jeez! 😳 It sounds like a typical Briggs and Stratton running at 3600 RPMs..

I’m quite pleased it wasn’t spectacular somebody could have run that engine for 20 more years it was far from scrap. A more modern engine would be better maybe one of your vehicles now that would be real fun

So sad to see such a venerable old engine die like that.

I remember a tale of Yanmar testing one of their single cylinder engines by jamming the governor and revving the nuts off it. The crankshaft snapped and the flywheel, a very heavy flywheel, went for a little walk through the bunker wall. Hell of a lot of energy stored in an over speed flywheel!

Enjoyed the video alot. I think if you found a cheap 4 stroke engine and routed an oil line with some sort of injection nozzle with some sort of pump and a valve into the air intake you would be able to simulate it better since a two stroke engine is designed to run on oil. A 4 stroke engine would run quicker and cause alot more carnage. As for the smoking issue with a 4 stroke make a long exhaust pipe that vents away from the engine a ways to help alleviate some of that problem. Food for thought. Thanks for the video once again

Modern engine if a fly farts in the vicinity of the fuel tank: "Hnng! I die..." Ancient scrap engine being fed death-fuel: "Bah! I'll take it, and ask for more!"

Great! I wasn't disappointed. Finally I saw a finnish explosion! Even the explosions there a totally relaxed.

man, that hurt to watch. shame to see that wonderful engine hurt like that. But fun!

That was neat, but using an antique engine that runs was a tragedy. Some of us would have bought that thing for our own collections.

That Engine would have really helped my village in Malawi...helped the children and everyone.

It shot flames and made O rings with the smoke...now that's impressive

this old Engines was build for QUALITY, it hurts, when you destroy this great Piece of Technology! Try this with an modern Diesel Engine!