Homemade Radial Engine part 8

[@larszenthio1012]

Just the kind of lawnmower you want to start up in the residential area, on an early Sunday morning. 😄👍

[@HamburgerAmy]

**me lookin to the sky for the germans**

[@revelationakagoldeneagle8045]

How about midnight, any night of the week. 😂

[@Bigtom-ld8gd]

I would do it if my neighbors were a-holes.

[@drmachinewerke1]

Notice only women complain about mowing early .

[@motorenbastler9289]

@@HamburgerAmy dont worry we germans dont do this anymore. Our generation has enough to do to figure out what gender they want to have today XD

[@user-dh9oz9um2w]

Radials don’t get enough love, awesome to see some love here

[@rockcrusher4636]

When I was much younger and moved to California, one of my first jobs was to rebuild 237, 9 cylinder R-1340 wasp engines. Went on to rebuild many 14 cylinders and 28 cylinders. They were amazing engines really fantastic engineering. Great stuff keep it up love watching your channel. Mvh Rock Crusher.

[@Sherman62]

That deserves at least a 36" deck. Awesome.

[@TestECull]

Bigger flywheel, an automatic governor where your throttle lever just controls a set point for RPM and the governor varies the throttle blade to maintain it, some cooling ductwork, and it would cut a hell of a lot better. Sounds amazing though!

[@Desmouffe]

The engine is to heavy for this chassie. I will look for a chassie from a Riding lawn mower. Put an electric starter on it and fix the cooling. I refuse to have a governor.

[@samuelfellows6923]

All small 4-stroke engines have a governor on them; to prevent over-revving that can destroy them, and stops them bogging down when under-load. And that exhaust looks unhealthy as the clapper is pointing the fumes into your face 😶‍🌫️, it should have a muffler on each of those short exhaust pipes = will constrict the exhaust flow to give better performance? and make it quieter; I can’t imagine how many decibels that is making 😖 sounding like a vintage aeroplane

[@heliarche]

@@samuelfellows6923 Build one how you like.

[@TestECull]

@@samuelfellows6923 That's why I mentioned a governor as well. There's a reason these tools typically have one. It's useful for the application. 'Tis fine to have a throttle...in fact preferrable...but that throttle should be setting the governor target, not acting directly on the carb. Directly connecting throttle to carb is only really useful on a gokart where you don't mind the chance you might pop the engine(Or have upgraded it to handle higher revs) and where you don't really need it to automatically add/remove power to hold a set RPM like you would a lawn tool.

[@agrobeson6471]

I would agree regarding flywheel mass. My other suggestion is a deck capable of handling a 40" steel blade...lots of inertial benefit in the tall grass too!

[@jlsracing997]

Best sounding lawnmower I have ever heard. Love a radial.

[@mattyoung2880]

It sounds like it has a lumpy cam !! So good !!

[@wolfmanradio]

You built what I’ve been dreaming of for the past thirty years. The sound is nothing less than music.

[@K_Shea]

A very humble guy, never gets excited until he saw the RPM could go low and stay there at 3:37 or so😃.

[@BluntEversmoke]

Hell yeah, the sound is sweet!

[@kevinrice7635]

Amazing 🎉🎉🎉Definitely Man of Genius 🎉🎉🎉

[@kevindammen]

You have trained me to click without hesitation on any video you release. They always surprise and entertain me. Thank you!

[@cbstudebakers6117]

"Baby got brrrap". sounds amazing

[@rocketsnhotrods9022]

Damn thats beautiful

[@SuperConanBarbarian]

Officially the coolest lawn mower Ive ever seen!!

[@crazysnarfy861]

I never thought I would see a lawnmower that looks like it was built for the Red Baron!

[@wtmayhew]

Makes mowing your yard sound like the county fair tractor pull. Love it!

[@mikejohnson4617]

Coolest walk behind lawnmower I've ever seen! I'm now fighting the urge to go back and watch videos on how you got here.

[@ElectricNed]

Don't fight it, brother

[@gsmith128251]

Jacobson used a blade in the seventies that was a large disk with four outer blades. Massive torque amplifier. Very cool work sir!

[@douro20]

Still used on Victa mowers in Australia.

[@brushbros]

Your engine is wonderfully balanced, and you are wonderfully eccentric. Bravo.

[@Desmouffe]

Thank you (I think)

[@TrevorStruthers]

I bet your neighbors love you. My dad was once told that our lawnmower sounded like a plane that couldnt take off. This one sounds like it might take off.

[@Desmouffe]

I get along very well with ny neighbors thank you. These machines are just for fun. I cut my grass with an ordinary mower

[@Jandinair]

Absolutely love the sound of that monster. I am very impressed that it even runs as well as it does. I would have no clue how to machine the parts to make that let alone add an electric starter. Keep up the amazing work and I cannot wait to see what happens with this one in the future.

[@linnightl9277]

Ha - the engineering wizzard directs exhaust fumes toward his face. Love the spirit. Subscribed.

[@u.e.u.e.]

What a great idea! 😂👍 - e-start - put a muffler of a Toyota Yaris on (with a modification of the exhaust tube) that will re-direct the exhaust gases down and to the side (away from your face) - finetuning of the chassis 😃👍

[@guybeingaguy]

Once I saw the pull start, I knew you were a great man!

[@Desmouffe]

My lower back does not agree with you. I need something else..

[@mrln247]

Fantastic project. Instead of an electric start, an air starter might be a very cool add on and quite period appropriate for a radial engine.

[@Desmouffe]

Sounds interesting. I will read more about it

[@assassinlexx1993]

Replace the cord and use a spring wound crank. Wind up the spring with a release button. No need for battery, starter, wires and switch. To keep your design simple. Small diesel engine uses this method.

[@Desmouffe]

That will take a quite powerful spring. It's hard to crank.

[@malcolmlane-ley2044]

Completely insane; I love it, and you can even get high on the fumes just by mowing!

[@michaelripley4528]

😂😂😂I freaking Love it!!! Regards from Denmark

[@screwsnutsandbolts]

Awesome job ! 👍

[@Iazzaboyce]

This guy has just been spotted mowing clouds over Dusseldorf.

[@jreese8284]

"This channel is FREE from beautiful girls in tights doing yoga." The best line I've EVER read in a channel description!

[@extrameatsammich]

With those long intake runners, you might want to heat the plenum directly below the carb to ensure that the fuel stays atomized. VW had to do this with their air cooled carburated engines.

[@Desmouffe]

I have been told that from others and Ihave to consider that...

[@mikellewis2346]

Just a man and his mower. Grow up in the 80s helping my grandfather work on all the locals mowers when they needed fixed or a tune up. Rip, "Peace Pap" ✌️

[@furmaster212]

The couple 2 blocks away: "Are the war planes coming again sweety?" Husband:"Ol Lucky must be mowing dear..."

[@Losermachine35]

This dudes neighbors must love him lol

[@Desmouffe]

Not necessarily

[@apex107lrp]

I closed my eyes and thought it was a film clip from 1914...

[@stevem491]

Fantastic. I love it when people have ideas and the ability to make those ideas reality, no matter how different they may be from the mainstream.

[@davidwiggins3451]

Idles down beautifully. Looking forward to the electric start and more robust chassis!

[@bososz]

Wicked cool! The foot pedal for assisting in starting is the chef's kiss, as it were. Outstanding.

[@Desmouffe]

Yes, but it still not enough...

[@georgemason8521]

Cleared for takeoff runway 25. Love it glad to see this.

[@joeanita8654]

the neighbors love this guy

[@henrik-josefsson]

This is awesome, the best lawn mower I have ever seen !!!👍👍

[@kenvik6192]

That's the best sounding mower I have ever heard

[@smedleypdolittle]

I use a cordless Milwaukee hole hog drill, with an inline ratchet, for starting my air cooled diesel engines. Cheers!

[@chrisprobert6]

Glad you made it back on video👍 Hover mowers can provide, a good amount of lift. If you could achieve enuff rpm. Happy days👍😅

[@Bob-j5o3b]

With a muffler, it would have a really nice mellow, rolling sound

[@Desmouffe]

Yes it needs a muffler and a slightly longer collector pipe

[@bubbleobill267]

First time I’ve seen this beast of a machine, it’s awesome!.

[@dandel351]

All this mower needs now is a Turbo....just to keep it quiet and get it thru that longer grass in one hit ! I'd be making damn sure that blade is screwed on tight. Love your work. I think the intake plenum needs more volume for when the blades get loaded up. May need some sort of governor setup like the briggs mowers have. The tractor flap on the exhaust made me laugh. Good luck with it and happy mowing!!😁👍👌

[@44thala49]

This would be awesome to fire up on a Saturday morning at dawn and start cutting the front yard. The neighbors would love it.

[@Desmouffe]

Not for me either

[@grntitan1]

I’m glad you were pull starting it and not me. 😂

[@Desmouffe]

Well, today I have pain in my lower back. It needs an electric starter

[@SteveVi0lence]

All fun and games until your lawn mower either becomes a helicopter or time travels to fight off Japanese zeros or fight in the battle of Britain lol

[@RanvirSingh-d2x]

WONDERFUL INVENTION . PUT A LITTLE CHAIN TO ANY TWO WHEELS , SO THAT IT GOES OFF ITS OWN WITH ONLY WALKING MANPOWER .

[@arthurdunn1452]

Rev er up mate,she might take off.!!!Australia 🇦🇺

[@tymz-r-achangin]

That's just TOO cool! Hope you get things figured out :)

[@FlyliteParamotor]

It deserves a propeller, I love the engine.

[@transmitterguy478]

Turn that into a cement finisher. LOL, Exciting project, I enjoy your series's's' on your projects. I can't wait for the next one.

[@Jonodrew1286]

Bloody Awesome !!!! Sounds so good - really really sweet sound - keep up the good work - look forwards to the E-start and good idle with engage drive at the wheels with remote control 👌👌👌👌👌👌👌👍👍👍👍😅😅😅🙏👍👍

[@leop9021]

Glad to see you back. Please keep making videos

[@Desmouffe]

We will see what's happening and what I find

[@Thomass7586]

You won't see this thing flying off of any store shelves 😮

[@MattysWorkshop]

Gday, great to see you back on the radial again and it sounds fantastic especially at idle, truly can’t wait to see where this goes next mate, great job as always, cheers

[@Desmouffe]

Thank's. I have a lot of other things to do right now but if I stumble over a suitable chassie I might be back...

[@hemibreath]

Just found this build 😎 It’s Awesome 👏 Suggestions: Nice fan shroud Individual carbs (yours not enough flow) 5 lawnmower mufflers Maybe a bigger (heavier) flywheel (older iron one) Awesome you cut the grass at the end ! 👍👍😂

[@Desmouffe]

It's under development. Much of what you suggested I'm sure will happen..

[@scottsuttan2123]

put that on a lawn tractor 😂 that sick heck a racing tractor pulling 360s n what weee awesome build 👍 the exhaust stack ....nice

[@Desmouffe]

Yes, it will probably get a new home

[@GCSol]

This is awesome. I love the sound of it.

[@anthonysinclair5721]

Entire video was cool right to the last second! 😎👍

[@Todd-o8n]

Imagine that beast running on nitromethane! That is a pretty cool build.

[@kevinwilliford8030]

Would Love to see that motor on a 36 in. walk behind commercial frame... Love the exaust stack!!!

[@ManiacRacing]

Awesome build! Subscribed for more!

[@Desmouffe]

Thank you, we will see what's happening in the future

[@ttocselbag5054]

The music of a radial! ❤️

[@AT-os6nb]

might wanna wear some muffs! beautiful! grandpas got the coolest lawnmower!

[@gsp911]

The neighbors will be thrilled, I love it. 😁 I need one like this, my neighbor is an idiot. This is perfect. 👌

[@LannyDAllen]

Just found this, now I got to go watch the whole series!

[@Desmouffe]

Enjoy...

[@JohnSmith-pl2bk]

Carb heat required... aircraft with radial engines have carb air intake heaters... those long intake runners are dropping the mixture out of the airflow on the way to the heads..... the outside of those intake runners will develop ice on the outside.......

[@Tenaciousmojo]

gorgeous sound! you are a mad wizard in the best way haha. your exhaust looks an awful lot like a temple-cage to the holy radial. love it!

[@Desmouffe]

Well, I'm not very good with pipes...

[@williamdejeffrio9701]

Fascinating! Look forward to the next installation.

[@bobod830_9]

It would be nice to have a governor and do more mowing. Possibly a pull behind mower for the V8 tractor.

[@TheDistur]

That is one beautiful machine! I hope you consider making an update after running the v8 a while.

[@Poorexampeofhuman]

Remind me of the cylinder swap firing order of the small block Chevy

[@donniewatson9120]

That's some tough grass to be drowning out that engine!!!

[@BlackPill-pu4vi]

Your radial engine needs a lot more rotating mass to help even it out and run smoothly at lower speeds. Make a custom mower blade with much more mass. Yes, the mower will be heavy and difficult to push. An easy fix. Create a dropped and extended axle for both front and rear. Put in much larger diameter wheels. Then it will roll easily.

[@Desmouffe]

I already have welded 500g weights on each knife-tip.

[@BlackPill-pu4vi]

@@Desmouffe Even though the intake and exhaust system is very elegant, the intake has a major flaw. It needs exhaust heat to vaporize the gasoline and enable better distribution. It would be painful to mess up such a beautiful piece of engineering to do that but, somehow that intake has to get hot.

[@christopherprince3250]

It sounds and looks awesome. Great job.

[@Desmouffe]

Thank you

[@ovalwingnut]

🚦If that mower pulled up next to me at a light.... I would concede that it was the faster machine. Period. I'm not going to have my Mustang embarrased by that "Thundering Red Rocket". Which ironically was the nickname my GF gave me. p.s. Love the pipes. Damn convention... "any port in a storm" (pun intended). Thank you for the video. You RoCk!

[@obbyjep7597]

That made it really sound neat, better than the short pipes I think

[@Desmouffe]

Yes, and I can run it on idle to.

[@obbyjep7597]

@@Desmouffe as a thought maybe you could find a old antic small kinda lawn tractor to drive around and show off the engine, even on of those rear engine sort

[@Desmouffe]

@@obbyjep7597 Yes, something like that. Let's see what I find...

[@Mikepet]

Please make an Inertia starter, would fit so perfectly on your little radial and it is really cool !

[@fastinradfordable]

I got a yard man mower off a coworker Never seen one before. Just walk up and slap the lever and she fires Amazing technology. It’s truly a crime that cars do not have inertia starters.

[@Desmouffe]

Interesting thought...

[@Mikepet]

@@fastinradfordable This Sounds Like a Spring Starter or Spring Force Starter but cool either way!

[@donotwantahandle1111]

Prop clear, chocks away, mow lawn!

[@Saertyhg]

When you got it iddle for couple of seconds, it sounded like radial aero engine on helium :D

[@Saertyhg]

I think you need heavier fly wheel.

[@jonr473]

This is amazing content, and I have worked out that this gentleman does not like grass 🤔😂

[@FlorentinoRebuildingCo.5644]

I would love to have Mr. Mekaniska as my neighbor.

[@Desmouffe]

Then we could have some fun...

[@ADRIAAN1007]

4:31 it sounds like a warbird taxing to the runway

[@htownblue11]

Tha machine is a beautiful beast.

[@agoogleaccount2861]

I bet that one doesn't bog down in tall grass ! Maybe a little back pressure exhaust constriction such as a small tractor muffler will help it at low rpm

[@catfish24]

It looks like that thing could fly to Mars

[@JohnSmith-pl2bk]

Perhaps a starter that sits on the ground flat...and you drive the mower onto it.. with a levered "pop up" dog or rubber cone that grips the blade boss.... press on the lever and it raises the starter cone up to engage it after the engine starts the foot comes off the lever and the mower is wheeled away... Saves weight and complication on the engine. Early aircraft had the same type of starter (Hucks Starter) mounted on a Model T Ford chassis......

[@Desmouffe]

I have had such plans but the chassie is to weak. We'll see what I find...

[@driverjamescopeland]

Tuning radials is always a challenge, due to the slight differences in piston travel between cylinders. Even if you account for the stroke variation with offset volume combustion chambers to equalize compression, you still have the issue of slightly different piston speeds and minute differences in displacement. Both of which effect flame front progression and peak torque angle. I love the sound of a well-tuned radial, especially the 5/7/9 cylinders. The growl of a radial 5 at full song is as unique as it gets.

[@Desmouffe]

Many strange things happen when you turn around a radial engine. They are very fascinating engines.

[@Ultra4115_]

Thats a sick lawnmower. Thats the only thing that really sucks with petrol is that you need atleast a bit of back preassure. My lawn mower idles kinds funny bcs i gave it a tipped exhause but still sounds better with a straight pipe so im not gonna change it

[@skyfly51]

This is so pointless, I love it! Just a man in it for the love of the game

[@andersson.l.e]

It sounds awesome. I hope to see you develope it further.

[@HamburgerAmy]

90 years ago this man would of won us the world war.

[@yksikaksikolmen]

Very effective, all grass gone

[@Wildstar40]

Man your engine sounds awesome. You should go electric starter and you should put a oil pressure gauge on it and a bigger fuel tank perhaps mounted on the handle. I bet she would really bark running on nitromethane

[@Desmouffe]

Electric starter is on my wishlist. The oil pump is built for flow, not for pressure so I don't think it's possible to measure.

[@Tag-Traeumer]

Who needs a airplane when you have a lawnmower?!