Boat engine goes out of control on first test run

Hey guys, after some careful consideration we decided to reupload this video. We weren’t satisfied with the render quality, could have explained the situation better, and made several small errors throughout. So despite all of the wonderful comments, and attention the video was getting, we felt it would be best to put up a more polished effort for the long term.

We’re really quite sorry about this, and appreciate all the feedback we received. Thanks!

Least you know she runs 😂

Uncle Jebediah and Jeffrey said now you two are done getting the horseless engine going, can you stop burning all their moonshine and get to work on the mash boiler.

She was a runner xD

Imagine that happening whilst you’re plodding up the cut 😂

For an rebuild engine, it looks pretty grimy: you'd think they would have cleaned it before the rebuild? Cleanliness is always a must when overhauling any kind of engine. This makes me wonder about the professionalism of the rebuilders? The seal ring on the flywheel was not installed properly? I don't think I want them to overhaul my boat engine.

this thing made so much power its could drift a bugatti veyron xdd

Why are these not balanced though? Isn't that a big thing with engines? I feel like if I pulled out my car engine and tried to start it on the ground it wouldn't run anywhere :)

Diesel guys ALWAYS be ready to shut intake air down and not a rag that can get sucked in and bend valves

Well, at least it works!

It could have made the boat plane! Such enthusiastic

I don't know what it was but That just reminded me of the African queen 😄

Hell of a way to clean a washer off

Just hand on carb?

To true you were not prepared, you only had two hold down bolts when you should have had four.

Hold your hats we are going now!

Nice real engines, not like the new gargage era.

real mechanics. maybe add that to your name: Hansen "Real Mechanics" Boatworkds :-)

👉 Old School CRITICAL THINKING SKILLS right there !!

We had a 4 cylinder diesel run away on an 80 foot racing sloop I sailed on once. I forget the brand, so I won't guess. I DO recall, however, being terrified as we struggled to strangle it. Which we did. So did we sail into the harbor like heros? No. We did not.

The flywheel is still out of balance!

bruh, you can see the gasket leaking even before it started.

🙂👍

Whenever you have an engine with a valve lifting mechanism, you can stop the engine by lifting the valves. It will stop as it will lose compression.

Back in the late 60s we had a lister diesel on a cement mixer run away .. turned out the new labourer used the wrong starting crank to start it... in reverse, was an entertaining end to lunch break..

Awesome vidieo . im just an old mechanic getting a kick

1975. Looks like 40s ingenuity.

well you do have the nut on the injector sitting right there looking at you.. easy to crack it?

Head gasket still leaks it looks like

Excuse my ignorance, but how is the engine cooled? I don't see any coolant reservoir or hoses.

At what point do you start running? Ha! Beauty

Whoever designed that engine gets an A+ in my book.

Great sounding engine

Thank God it was securely mounted, oh, hang on.....

That's better than a cup of coffee. Runaway screwed to a pallet

I see your amendment to "runaway" and I will say that it was still a runaway. Any uncontrolled running up of a diesel (or similar cycle) engine is classed as a runaway, even if the fuel source is its regular fuel.

thats a very hard knock when running stationary a wonder it dosn't destoy its piston.

bravo cool

A real brown trouser moment if ever i saw one. It's that feeling of pure panic, whilst trying to keep a cool head and sort the problem as quickly as possible. Nicely done.

Co2 extinguisher is handy straight down the intake .

Crank up the fuel! Much like a Duramax / Powerstroke tuner. I bet she was "rollin coal" 😂

Nice ! Job guys.

she sounds happier @ a higher rpm I think.

Watching machinary being brought back to health is Farrr better than Parn.🧐

That's just fantastic! I'm a little concerned with there being no exhaust manifold how that works out in a boat or does in run only when out in the open air?

I helped my dad install a new (used) kubota engine in his tractor and first start it ran away. That is a special type of fear when inches away from an engine thats running well over redline and scrambling to find a block of wood to choke the intake.

yeah thats a saab alright haha should have gone for a fiat instead, rookie mistake

Cool

At least you know how fast the r p n's can go😊

Did you guys scavenge The African Queen