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

[@Sherman62]

That deserves at least a 36" deck. Awesome.

[@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.

[@jlsracing997]

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

[@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!

[@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.

[@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

[@kevindammen]

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

[@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!

[@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)

[@wtmayhew]

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

[@crazysnarfy861]

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

[@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

[@SuperConanBarbarian]

Officially the coolest lawn mower Ive ever seen!!

[@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

[@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.

[@malcolmlane-ley2044]

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

[@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..

[@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.

[@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" ✌️

[@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...

[@linnightl9277]

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

[@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...

[@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 😃👍

[@davidwiggins3451]

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

[@henrik-josefsson]

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

[@kenvik6192]

That's the best sounding mower I have ever heard

[@Iazzaboyce]

This guy has just been spotted mowing clouds over Dusseldorf.

[@georgemason8521]

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

[@jreese8284]

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

[@screwsnutsandbolts]

Awesome job ! 👍

[@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.

[@apex107lrp]

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

[@bubbleobill267]

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

[@LannyDAllen]

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

[@Desmouffe]

Enjoy...

[@tymz-r-achangin]

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

[@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...

[@joeanita8654]

the neighbors love this guy

[@GCSol]

This is awesome. I love the sound of it.

[@arthurdunn1452]

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

[@cbstudebakers6117]

"Baby got brrrap". sounds amazing

[@furmaster212]

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

[@kevinwilliford8030]

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

[@rocketsnhotrods9022]

Damn thats beautiful

[@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👍😅

[@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!!😁👍👌

[@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...

[@AT-os6nb]

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

[@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!

[@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..

[@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 👌👌👌👌👌👌👌👍👍👍👍😅😅😅🙏👍👍

[@kevinrice7635]

Amazing 🎉🎉🎉Definitely Man of Genius 🎉🎉🎉

[@anthonysinclair5721]

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

[@leop9021]

Glad to see you back. Please keep making videos

[@Desmouffe]

We will see what's happening and what I find

[@TheDistur]

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

[@Todd-o8n]

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

[@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

[@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

[@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.

[@Losermachine35]

This dudes neighbors must love him lol

[@Desmouffe]

Not necessarily

[@bobod830_9]

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

[@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

[@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

[@ttocselbag5054]

The music of a radial! ❤️

[@michaelripley4528]

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

[@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.

[@williamdejeffrio9701]

Fascinating! Look forward to the next installation.

[@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.

[@FlyliteParamotor]

It deserves a propeller, I love the engine.

[@christopherprince3250]

It sounds and looks awesome. Great job.

[@Desmouffe]

Thank you

[@gsp911]

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

[@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

[@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...

[@paulhare662]

I got to fly in a 1941 Stearman last year, your mower sounds a lot like it.

[@Desmouffe]

Then I must have done something right...

[@allahsnackbar9915]

you should measure intake air vacuum level, just by ear im guessing it is rather high even at just an idle. those intake runners are also sitting in the hottest place, considering the fan is under the pan and cutting grass instead of blowing cooling air across it)) cool project and thumbs up, best wishes

[@Desmouffe]

I wanted high speed of the gases in the intake runners since they are so long. That's why I made them so thin. But I guess they could be a little thicker. I'm guessing and testing. I don't really know what I'm doing...

[@AJRestoration]

This is awesome! However I whink you will run into overheating/cooling issues with long time use. There's no fan blowing the fins.

[@Desmouffe]

Yes it does. Building an engine creates many problems that has to be solved and cooling is easily forgotten. This engine will get a new home on a riding mower chassie and then it will get some kind of shroud for the fan

[@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

[@RanvirSingh-d2x]

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

[@htownblue11]

Tha machine is a beautiful beast.

[@1toonhead]

That had such a cool note to it. Be interesting what you come up with for a new body.

[@donniewatson9120]

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

[@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.

[@Thomass7586]

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

[@andersson.l.e]

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

[@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

[@NamelessLamb]

It sounds amazing!

[@wascadoo8946]

Well done mate👍

[@Paulman50]

Nice rig, it'll be ausom to see it progress.

[@GWAForUTBE]

Fantastic job. I've always loved the radial design .

[@Poorexampeofhuman]

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

[@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...

[@FlorentinoRebuildingCo.5644]

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

[@Desmouffe]

Then we could have some fun...

[@ManiacRacing]

Awesome build! Subscribed for more!

[@Desmouffe]

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

[@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.

[@frankierutherford1888]

Wow it sounds amazing

[@kennynelson2269]

I truly hope you go through with the build.. ill definitely be watching