What Mr. Collier did as a machinist is craftsmanship perfection. What he did to the valve covers and pushrod cylinders, as well as the additional work, places him in the artist category. For those of us that know what you did, we are in awe.

I purchased the plans and casting from Lee Hodgson probably 15 years ago and have yet to build it. Thanks for the motivation!

I am so thankful that he built, and shared with us, this marvel of engineering!

That is some awesome work there. I have been a a machinist for 40 years and I greatly appreciate the work and the pure talent required to make such a machine. Love it. The thrill of firing it up for the very first time is probably beyond words. Thank you for sharing it.

Would love to see four of these powering a scale model B-17. The sound alone would be spot on!

A true engineering and visual work of art. And he is correct. The scale version propeller adds so much.

You know you're a Bad Ass when you can manufacture & build your own engine from scratch. Awesome!!!!

I cannot even begin to imagine the joy he must have felt, hearing that engine fire up for the first time. Respect

That has to be the smoothest running radial engine I've ever seen, regardless of size! Great job!

What a thing of beauty. Thanks for sharing, George.

That is some seriously amazing talent that guy has I am thoroughly impressed! I hope his still with us.

Great job, I like the mods you did with the tappet covers and push rod tubes.

Magnificent and elegant. It would be great on a scale model of the Sprit of St.Louis

Naturephoenix, what you're talking about is called an "inertia starter". It works by winding up a flywheel (what the guy is cranking) Then you engage a clutch (screaming sound), the flywheel turns the engine over and it starts (usually). More reliable than electric start because you don't need a battery & you can try as long you can crank up the flywheel. Some inertia starters used an electric motor to wind up the flywheel.

To be admired ,Well done ...A patient builder

Extremely impressive. Amazing item to build from scratch running like the real thing!

Super nice engine i love those radials hope you will film the new project once he get's it done

Hats off to the working class people of America. This fine example of the forgotten skills and talents that are manifest across the country--if you know where to look!

What a fantastic piece of workmanship. You deserve to be well and truly proud of yourself.

I worked with Lee Hodgson for about a year in Cincinnati. I remember him talking about how he and his dad developed these engines, and how he planned to market the plan for these. I saw about a dozen years ago that he had gone ahead and done what he said he would back in 1993-94.

Amazing machine work ! I'm a certified welder for 23 years now and thusly do a little fabricating too but , this level of precision is far beyond me .

A thing of beauty :) It's great that we get to see what people have done like this. 5 stars

beautiful... would love to see it on a flying model.

Wow a true craftsman, really outstanding work..... Thanks for the posting.

You are correct about turning a radial engine over before starting. However Mr Collier did indeed turn the engine over the required number of times before starting, but that was edited out of the video.

Super impressive you are one hell of a machinist great job

Truly spectacular! It runs like a Swiss watch! I applaud your ingenuity, talent and patience. Would you mind sharing your occupation and level of education?

Very nice... Job well done... .Looks great. As an A&P I have worked on Radials... They are all but a lost art today!

I'm in the process of building one of these exact engines (9 Cylinder Hodgson radial) right now and it's this video that is my motivation. Hoping to build a scale F4U Corsair to drop it into after it's done. Good on ya John!!!

Well Done. I bet you have a fabulous workshop.

14 yrs and now recommended. Welcome newcomers

Fantastic! Fantastic! Fantastic! Thank you soooo much for making this video and showing this incredibly beautiful work of the machinists art.

You need to have an aircraft at least 60 pounds in weight to install this monster! Otherwise it will start falling apart even on the ground!!! Truly awesome machinery, obvious from the engine's sound, very smooth and not rough running!!! 5 stars!!!

A magnificent metal work of art. Thanks for sharing.

It is a crying shame that all this talent is lost in a generation just imagine if we could live for 800 years.

Outstanding craftsmanship!

Beautiful !! Just visited the agelessengines website too ...

I'm building a 1:1bi-plane for a very deep school project, and I'm finally getting closer to being able to create my radial engine because of this!

OMG! That needs to be on a period correct warbird. that sounds amazing

These engines are marvels of craftsmanship. Works of art. I wouldn't have the stones to try flying one in a model aircraft though!

This engine was used to power a WW2 tank. It was basically a heavy canon mobile armored platform, that I saw on R Lee Ermy's Mail Call on the History Channel

That is awesome. That guy has a lot of patience

an absolute work of art..

Amazing! Good job.

absolutely beautiful peice of engineering...I agree...it would look incredible in a model aircraft of a vintage to suit....

O that sounds nice at tick over. What an achievement sir. Well done.

You tell him!! I'm in awe of the work. Very very nice.

Beautiful, elegant, excellent work

Pure craftsmanship!

Golly, I am always amazed by folks with such awesome techical skill Dr Richard MD

Amazing accomplishment WOW !

Beautiful work.

Very nice piece of work. Massive thumbs-up

It even sounds like a radial. Wow!

A true craftsman. Congrats!

wonderful craftmanship !!!!!

What a man does is more impressive than what he says. Awesome Job GaryFord99. Thank you for showing.

I am sure he can figure this out. lol. Very skilled machinist. Very Nice Work!

Beautiful, well done that man

WOW!! Beautiful model! very well done!! SWEET sound too!!!!!!!

a mechanical work of art great video

awesome job sir! love the sound when it's close to idle...

That sir, is a thing of beauty. I am very impressed!

Wow, very cool sir. Nicely done. Its a beauty.

A top notch accomplishment !!

Outstanding job!

wow .. well done sir . beautiful workmanship

Beautiful! Absolutely magnificent!

Wonderful work! Keep at it...

Amazing work. Beautifully made engine. Thanks for sharing.

Fantastic, well done Sir.

nice full throtle demo

very well done...its amazing that everything was hand done out of just bar stock...and twelve hundred hours...very very well done sir

Fantastic work! nice job

That is beautiful! You should be proud. Thanks for sharing with us.

Very nice work Sir..........................

Well done first class, from a fellow model engineer

What an achievment.I am so impressed.

Beautiful workmanship. Not so much a machine as art that moves.

I remember seeing this engine and it's build for the first time on 5 bears engineering. That was a great website...before the days of the youtubes.

Nicely done, my hat is off to you sir.

She's a beauty! Truly a work of art.

Well sir, you have my respect... Well done from downunder, Perth Australia. Kind Regards, Alan

Wow. Beautiful work. -jcr

That is a work of art.

Brilliant job.

sounds beautiful, nice video. thanks

Wow, 1200 hours, that's dedication.

Saw a similar engine in model hobby shop in Chicago about 40 years ago. It was only about 8 inches across and cost $1000!

reminiscent of the Spirit of St.Louis radial. Nice!

sounds very good

respect!!! that's no engine that's a master piece of art!

What a beauty. Thanks fellas.

it is a mechanical work of art.

Incredible. You are quite a talent.

very cool....you must be a great machinist

Absolutely wonderful work.

One thing I learned when I was flying model airplanes is that you set the mixture and left it alone for the most part. If you had to fiddle with it, you were doing something wrong. I hope he builds an aircraft for it. That would be very cool. He mentioned OS as the maker of the carburetor, they also make and sell a 5 cylinder radial of about 4 cubic inches and I thought at first this engine was using those cylinders and heads but it was not. This is an amazing amount of skill and work on exhibition. It would be a shame if that was it, if he's just going to run it on the stand off and on. It needs to be flown.

that is brilliant, good luck with the v8.

I enjoyed your video very much! that was a very good job building that motor