So this means you’re making an RC tractor and miniature farm for it to work on right? 😄

Sounds like a mini top fuel dragster when cranked up

Cool engine. I like the big flywheel low speed revving!

A toast to all the shell casings that left the industry to be cast in a new roll.

I think it's a gorgeous engine, I especially love the shrouded radiator and fan, as well as the centrifugal governor. Bit of a bummer that it was a rather shoddy build. Someone not mechanically inclined probably wouldn't have noticed the coolant issue and kept running that thing until the bearing surfaces were completely nuked. I kind of get it, these aren't built on a massive factory line. I imagine there aren't a lot of these built at all, so there are going to be cock-ups. That they used the wrong size o-rings, however, was a pretty big cock-up. Especially as these things aren't exactly cheap. That said, I kind of wish someone could get them to make a submarine diesel. I would be all over it like stink on poo if they did, lol...

I really appreciate that you let us enjoy your hobby with you by showing us all these beautiful model engines.

One of the best sounding engines yet! seriously cool!

mesmerizingly beautiful shots, thanks

This is my favorite content to watch! Love your cinematic expertise!

I dig the tractor flap on exhaust . way cool

The tiny amount of valve lift is hilarious I need that camshaft for my small block race truck

Fabulous video! Happy New Year

Давно смотрю твои видео, спасибо за интересные разработки!

A fast RC car is something we see all the time. RC Tractor Pulling thats something i would watch. Raw tork and heavy duty gearbox working to the max.

I do enjoy the sound of these little engines. For some reason I'm imagining this engine being used to create a scale Armstead/Fordson Snow Motor screw drive tractor.

I love this farm engine it is the coolest engine I have ever seen. It also has a great sound to it. Love your channel and content. Always waiting for the next video. ❤🇨🇦

Great job. It's beautiful made of mostly brass

You do amazing work 👏🏻👌

I like most of your videos but this one is fantastic, one of my favorites

So cute! Reminds me of a small puppy dog growling. Thanks for sharing.

This thing is yet the coolest engine. i love it.

A beautiful machine with a great sound

Appears to be a number of fixes required for a new, out of the box, engine. Hopefully it wasn't too expensive.

Nice looking engine, sounds great

Awesome little engine(with its flaws), but what suprised me the most is that it got a centrifugal gouvener controlling the gas. I had to rewatch the video just to see it clearly. Those 2 rotating brass balls right behind the flywheel at 1:16

Muy buen trabajo 👍, FELIZ AÑO VENIDERO saludos

What a coincidence, just bought exactly the same scale today 😀

that`s a real nice running engine

Pretty close reproduction of the old Holt 75! Good catch on the cylinder sleeve o-rings! That could have been a really bad thing in short order. I'd love to see this running a small genset (i.e. a permanent magnet motor) and load it down with some lights and such. It would probably smooth right out with a load on it!😁

This channel is the best.

Very cool. Nice sound.

You find the coolest engines

Rich man's engine, 1500 clams for that baby! Guess I'll just be watching . Great quality video 👍

Beautiful engine!

She sounds GREAT at idle!

Tnx for your video i hope one day buy one of them...

That thing is A Beauty. Would make a Great boat Power house

Pretty cool. You should make an oil bath air filter for the intake.

I see an RC bulldozer in your future! And, of course, a build video to go along with it.

I love watching all your videos you're very talented the V8 supercharger superchargers trying to compress the air in the wrong direction it should spend around to the outside of the case and then as the blades interact with each other it forces the air down to stay in that chamber if they spend to the inside a lot of the boost runs around the outside of it rotors back to the carburetor side and the boost will be more consistent keep up the awesome job love them all

For a miniature engine this thing sounds really good

Nice build

Those little engines are so neat. I wish those kits weren't so expensive though. As a tinkerer, maker, and mechanically minded person, I think it would be super fun to get a big box of parts and put together an engine model like that. I would totally hook up a little generator and a string of LED lights or something just to make it do something and be pretty also. If you ever have any kits you want to get rid of, I'm right over here in Southwest Washington haha.

a work of art.

These are so cool!!! I wonder what one would sound like with a "muffler"?

Luvely job. I can even smell the sweet exhaust fumes.

Johnny please make a tractor for this engine. Would love to see the one like they have that do tractor pull competitons. 😂

This needs to be made into a mini tractor, and @Luke Towan should build an environment for it to work in!

I'd love to see all of this little engines on a Dyno to see how they compare.

I once saw a similar engine in an rc hot rod car that would be a cool project for you

Looks beautiful

You sir... have the COOLEST toys and tools lol. Now you need to make an RC tractor. Lol

At 3:32 you can see that the water pump belt is crossed. I looked on the linked website to buy, and it isn't crossed. Maybe that had something to do with the lack of coolant flow? Love your vids!

This is a Jianzhong Dong engine, and Jin is an excellent engineer. However, I haven't bought this engine, as it is very expensive and has been problematic with water leaks from the cylinder liners. He is selling improved liners, but should be providing them to previous buyers of this engine for free.

nice engine.

Very cool, now it just needs an extra bank of cylinders! 😉

Nice engine.

My crank case covers didn’t seal at all so I used a thin piece or rubbed gasket to seal it up to hold a little oil in the crank case but it runs great

You have to build a Tank around it, it perfectly sounds and performs for it 😮

Sounds sweet

Man I would love to see it put under some load and see how well the governor works

If i could get one of these to fit in one of my 1/14 semi, i'd build a hell of a truck.

This is what's going to power my future hybrid car, based on the trajectory of current events

Dope AF. How's the timing for ignition handled? Is there a crank sensor?

I'm not 100% positive, but I believe the oil leak is standard on the full size model also. 😅

I have never clicked on a notification this fast before

Batteries to work. Hmmm. Try fitting a magneto? Dynamo? Does it have spare ooomph? At that price, & that level of QC, I won't be going for one. Nice vid, thanks for sharing.

Pretty color

What a beauty 👌🏻😎

Yeah a new video !

it would be really cool to build a small hydraulic pump and then built a scale hydraulic log splitter!

No tractor sounds like this 😁👍

I've never seen anything more beautiful! I would really like something like that! unfortunately far too expensive for me! My grandfather was a farmer in Laussa, Austria, and he had a machine like this, but of course it was big. nice greetings from Österreich

My favorite Microcosm engine. I have it on my channel too

So cool! Would be even cooler is you made it into a rc crawler or a towing rc tractor cause why not🤷

So good ii boss 👍👍

This is cool just wish it could be turned into a diesel or there were a diesel version. I remember there was a way to turn the nitro 2 strokes into a diesel with a fuel that had more than just diesel in it to help it burn with less compression.

So cool.

You need a mini dyno. I'd love to see the numbers on this beauty.

This things needs to be put into an RX7 drift car model. It has a very “rotary” type sound

Good evening Johnny q 90. I have a small four stroke engine. M 16 is in question. I am interested in how much oil should be put in the oil pan if the ratio is 4%. Should you use oil for two-stroke engines or oil for four-stroke engines? I usually put 1 milliliter of four-stroke engine oil in the oil tank and make a two-stroke mixture according to the ratio that I put in the tank.

Awesome.

I kind of want to see a hydrostatic transmission at this scale (as seen on late 1900s cub cadet garden tractors)

Sounds like our Zetor 6245

Johnnyq90. What is your opinion of that engine? It’s a toss up between the gn-n100 or the h75. Would love both but can’t afford both. Trying to get the best for my buck that will last me. Thanks for your wonderful videos! Can’t wait to see what you do with it!

Please make a compilation of max rpms of all your engines.

God that's a beautiful piece of engineering! Is it a kit? If so what it's its name please? Any information would be appreciated. Many thanks

Would love to see a 5 cylinder!

Nice job again, you save that engine. Wen do you make your own engine from scratch, like a hybrid engine, half glow half electric in the same body. Well it's jost an hipótese.

My friend has a real version of this engine along with tank engines a jet powered riding mower Etc I can't wait to show him this video

it's amazing how many engineers dont understand that o-rings need to squash. the idea is that it's a round cross section going into a square profile and the ring squashes into the angled corners. I've seen engineers cut a 3mm chanel 3mm deep because the o-ring was 3mm.

Do you have a link where you got the O-rings from? Is 19mm the outer or the inner diameter? I have exactly the same problem with my Holt H75. After each run, most of the cooling liquid dissapears into the sump.

Love the video , also what is the name of the song playing at the end of the video ? 😎👌🏼

Every video we get closer to a diesel powered mini rock crawler.

Rc tractor build please!🎉

I'd hook it up to a generator. Probably make a few thousand watts with that bad boy.

Did you replace the rings in all the cylinders or just the one?

My God, the sweet one is the little engine 😋😋

THAT is my DREAM

"Memmeh, I need it."